Top cover cross beam assembly of vehicle and vehicle

Abstract

The utility model discloses a roof crossbeam assembly and a vehicle, and relates to the field of vehicles, the roof crossbeam assembly comprises a roof crossbeam upper plate and a roof crossbeam lower plate, the roof crossbeam lower plate is connected with the roof crossbeam upper plate along the height direction of the vehicle, the roof crossbeam upper plate is provided with a recessed part recessed towards the roof crossbeam lower plate, the recessed part is used for installing a laser radar of the vehicle, and the laser radar is used for installing the laser radar. The top cover cross beam lower plate is sunken in the direction away from the top cover cross beam upper plate so that a first cavity can be defined by the top cover cross beam lower plate and the top cover cross beam upper plate together, and the top cover cross beam lower plate is provided with a protruding part protruding towards the interior of the first cavity. The side wall connecting pieces are arranged at the two ends of the top cover cross beam upper plate correspondingly, and the side wall connecting pieces are suitable for being connected with the side wall of the vehicle. By means of the structural optimization design of the top cover beam assembly, the structural rigidity of the assembly and the NVH performance of the whole vehicle are improved, and light weight is achieved by reducing connecting reinforcing pieces. Therefore, due to the optimized design of the top cover beam assembly, the NVH performance of the whole vehicle is improved, and meanwhile cost and weight are reduced.

Description

Technical Field

[0001] The utility model relates to the field of vehicles, in particular to a roof crossbeam assembly of a vehicle and a vehicle. Background Art

[0002] With the sharp improvement of the intelligence level of vehicles, lidar is configured in many vehicle models. If it is arranged on the roof crossbeam assembly, the Z-direction cross-section of the crossbeam will become smaller, affecting the structural stiffness of the roof crossbeam assembly, and further affecting the NVH (Noise, Vibration, Harshness) performance of the vehicle.

[0003] If the thickness of the components in the roof crossbeam assembly is increased, or new materials are used, or counterweights and dynamic vibration absorbers are added, or reinforcement members are added, it will not only increase the weight of the vehicle, but also increase the cost of the vehicle. Content of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. For this reason, an object of the utility model is to provide a roof crossbeam assembly of a vehicle, which can ensure the structural strength on the basis of meeting the installation space of lidar, and is beneficial to improving the assembly stiffness and the NVH performance of the whole vehicle.

[0005] The utility model further provides a vehicle.

[0006] The roof crossbeam assembly of the vehicle according to the utility model includes: an upper roof crossbeam plate and a lower roof crossbeam plate. Along the height direction of the vehicle, the lower roof crossbeam plate is connected to the upper roof crossbeam plate. The upper roof crossbeam plate has a recessed part recessed towards the lower roof crossbeam plate, and the recessed part is used for installing the lidar of the vehicle. The lower roof crossbeam plate is recessed towards the direction away from the upper roof crossbeam plate to jointly define a first cavity with the upper roof crossbeam plate, and the lower roof crossbeam plate has a protruding part protruding into the first cavity; side wall connectors are provided at both ends of the upper roof crossbeam plate, and the side wall connectors are adapted to be connected to the side walls of the vehicle.

[0007] For the roof crossbeam assembly of the vehicle according to the utility model, the optimized design of the structure of the roof crossbeam assembly not only improves the stiffness of the assembly and the NVH performance of the whole vehicle, but also realizes lightweight by reducing the connection reinforcement members. Therefore, through the optimized design of the roof crossbeam assembly, while improving the NVH of the whole vehicle, the cost is reduced and the weight is reduced.

[0008] In some examples of the present utility model, the first cavity and the protruding portion both extend along the length direction of the lower plate of the roof cross beam, and the length direction of the lower plate of the roof cross beam is perpendicular to the length direction of the vehicle.

[0009] In some examples of the present utility model, along the length direction of the vehicle, the size of the first cavity is A, satisfying the relation: 90 mm ≤ A ≤ 95 mm.

[0010] In some examples of the present utility model, the lower plate of the roof cross beam includes: a first sub-plate body, a second sub-plate body, a third sub-plate body, a first connecting flange and a second connecting flange. Along the length direction of the vehicle, the first sub-plate body and the third sub-plate body are opposite and spaced apart, the second sub-plate body is connected between the first sub-plate body and the third sub-plate body, the second sub-plate body has the protruding portion, one end of the first sub-plate body away from the second sub-plate body is connected with the first connecting flange, one end of the third sub-plate body away from the second sub-plate body is connected with the second connecting flange, both the first connecting flange and the second connecting flange extend along the length direction of the vehicle, the first connecting flange is attached to and fixedly connected with the lower surface of the upper plate of the roof cross beam, the second connecting flange is attached to and fixedly connected with the lower surface of the upper plate of the roof cross beam, and the upper plate of the roof cross beam, the first sub-plate body, the second sub-plate body and the third sub-plate body enclose the first cavity in sequence.

[0011] In some examples of the present utility model, the side wall connecting member is recessed in a direction away from the upper plate of the roof cross beam to jointly define a second cavity with the upper plate of the roof cross beam, and the first cavity and the second cavity extend along the length direction of the upper plate of the roof cross beam and are continuously arranged.

[0012] In some examples of the present utility model, the side wall connecting member includes: a fourth sub-plate body, a fifth sub-plate body, a sixth sub-plate body, a third connecting flange and a fourth connecting flange. Along the length direction of the vehicle, the fourth sub-plate body and the sixth sub-plate body are opposite and spaced apart, the fifth sub-plate body is connected between the fourth sub-plate body and the sixth sub-plate body, one end of the fourth sub-plate body away from the fifth sub-plate body is connected with the third connecting flange, one end of the sixth sub-plate body away from the fifth sub-plate body is connected with the fourth connecting flange, both the third connecting flange and the fourth connecting flange extend along the length direction of the vehicle, the third connecting flange is attached to and fixedly connected with the lower surface of the upper plate of the roof cross beam, the fourth connecting flange is attached to and fixedly connected with the lower surface of the upper plate of the roof cross beam, and the upper plate of the roof cross beam, the fourth sub-plate body, the fifth sub-plate body and the sixth sub-plate body enclose the second cavity in sequence.

[0013] In some examples of the present utility model, along the length direction of the vehicle, the size of the second cavity is B, satisfying the relationship: 90 mm ≤ B ≤ 95 mm.

[0014] In some examples of the present utility model, along the height direction of the vehicle, a part of the structure of the side wall connecting member is located on the side of the lower plate of the roof cross member away from the upper plate of the roof cross member and is connected to the lower plate of the roof cross member, so that a part of the structure of the upper plate of the roof cross member, a part of the structure of the lower plate of the roof cross member, and a part of the structure of the side wall connecting member are stacked in three layers.

[0015] In some examples of the present utility model, the upper plate of the roof cross member includes: an upper plate body, a fifth connecting flange, and a sixth connecting flange. Along the length direction of the vehicle, the fifth connecting flange is connected to the front end of the upper plate body, the sixth connecting flange is connected to the rear end of the upper plate body, the fifth connecting flange is bonded to the front windshield glass of the vehicle, and the sixth connecting flange is bonded to the skylight glass of the vehicle.

[0016] The vehicle according to the present utility model includes the roof cross member assembly of the above-mentioned vehicle.

[0017] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0018] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0019] Figure 1 is an exploded schematic view of the roof cross member assembly according to the embodiment of the present utility model;

[0020] Figure 2 is a schematic view of a part of the structure of the first plate body according to the embodiment of the present utility model;

[0021] Figure 3 is a schematic view of the connection between the roof cross member assembly and the side wall according to the embodiment of the present utility model;

[0022] Figure 4 is Figure 3 a cross-sectional view taken along D-D in

[0023] Figure 5 is Figure 3 a cross-sectional view taken along E-E in

[0024] Figure 6 is Figure 3 a cross-sectional view taken along F-F in

[0025] Figure 7 Yes Figure 3 Cross-sectional view of G-G;

[0026] Figure 8 It is a comparison diagram of the noise response of the driver's left ear and the noise response of the right ear of the rear row right occupant when the roof cross member assembly of the present invention is applied and when the roof cross member assembly of the present invention is not applied.

[0027] Reference numerals:

[0028] Roof cross member assembly 100;

[0029] Upper plate 10 of the roof cross member; Depression 11; Fifth connecting flange 12; Sixth connecting flange 13; Wire passing hole 14; Positioning hole 15; First mounting part 16; Second mounting part 17; Protruding part 18; Upper plate body 19;

[0030] Lower plate 20 of the roof cross member; First sub-plate body 21; Second sub-plate body 22; Third sub-plate body 23; First connecting flange 24; Second connecting flange 25;

[0031] Side wall connecting member 30; Fourth sub-plate body 31; Fifth sub-plate body 32; Sixth sub-plate body 33; Third connecting flange 34; Fourth connecting flange 35;

[0032] Mounting lamp bracket 40; Interior trim bracket 50; First cavity 60; Second cavity 70; Side wall 80;

[0033] Lidar 90; Radar trim 91. Detailed implementation manners

[0034] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as limiting the present invention.

[0035] Reference is made below to Figures 1 - 8 Describe the roof cross member assembly 100 of a vehicle according to an embodiment of the present invention.

[0036] As Figures 1 - 8 shown, the roof cross member assembly 100 according to an embodiment of the present invention includes: an upper plate 10 of the roof cross member, a lower plate 20 of the roof cross member, and a side wall connecting member 30.

[0037] Along the height direction of the vehicle (i.e., Figure 1In the vehicle's height direction (i.e., the Z - direction as shown), the lower plate 20 of the roof cross - beam is connected to the upper plate 10 of the roof cross - beam. The upper plate 10 of the roof cross - beam has a recessed portion 11 that is recessed towards the lower plate 20 of the roof cross - beam. The recessed portion 11 is used to install the lidar 90 of the vehicle. The lower plate 20 of the roof cross - beam is recessed in a direction away from the upper plate 10 of the roof cross - beam to jointly define a first cavity 60 with the upper plate 10 of the roof cross - beam, and the lower plate 20 of the roof cross - beam has a protruding portion 18 that protrudes into the first cavity 60. At both ends of the upper plate 10 of the roof cross - beam, there are side - enclosure connectors 60, and the side - enclosure connectors 60 are adapted to be connected to the side enclosure 80 of the vehicle.

[0038] Among them, in the vehicle's height direction (i.e., Figure 1 the Z - direction as shown), the lower plate 20 of the roof cross - beam is arranged below the upper plate 10 of the roof cross - beam, and the upper plate 10 and the lower plate 20 of the roof cross - beam are connected. As some embodiments of the present application, the upper plate 10 and the lower plate 20 of the roof cross - beam are connected by welding. Moreover, the upper plate 10 of the roof cross - beam has a recessed portion 11. In the vehicle's height direction (i.e., Figure 1 the Z - direction as shown), the recessed portion 11 is recessed towards the lower plate 20 of the roof cross - beam, and the recessed portion 11 can accommodate the lidar 90 of the vehicle.

[0039] The lower plate 20 of the roof cross - beam is recessed in a direction away from the upper plate 10 of the roof cross - beam to jointly define a first cavity 60 with the upper plate 10 of the roof cross - beam, and the lower plate 20 of the roof cross - beam has a protruding portion 18 that protrudes into the first cavity 60. Specifically, in the vehicle's height direction (i.e., Figure 1 the Z - direction as shown), the lower plate 20 of the roof cross - beam is arranged below the upper plate 10 of the roof cross - beam. And the lower plate 20 of the roof cross - beam and the upper plate 10 of the roof cross - beam jointly define a first cavity 60, and the lower plate 20 of the roof cross - beam has a protruding portion 18, and the protruding portion 18 protrudes into the first cavity 60. By defining a first cavity 60 between the lower plate 20 of the roof cross - beam and the upper plate 10 of the roof cross - beam, and making the lower plate 20 of the roof cross - beam have a protruding portion 18 that protrudes into the first cavity 60, the stiffness of the roof cross - beam assembly 100 can be increased, the roaring sound caused by the vibration of the roof cross - beam assembly 100 can be reduced, and the NVH performance of the vehicle can be improved.

[0040] In the vehicle's width direction (i.e., Figure 1 the Y - direction as shown), at both ends of the upper plate 10 of the roof cross - beam, there are side - enclosure connectors 30. The side - enclosure connectors 30 at both ends of the upper plate 10 of the roof cross - beam are respectively connected to the side enclosures 80 on both sides of the vehicle to connect the roof cross - beam assembly 100 to the side enclosure 80 of the vehicle.

[0041] As some embodiments of the present application, both the lower plate 20 of the roof cross - beam and the side - enclosure connectors 30 are manufactured by hot - forming process, which can improve the structural strength and meet the requirements of collision and durability performance.

[0042] In some embodiments of the present application, the upper plate 10 of the roof cross member, the lower plate 20 of the roof cross member, and the side wall connecting member 30 are connected by welding points.

[0043] In some embodiments of the present application, as Figure 1 shown, the bottom wall of the recessed portion 11 of the upper plate 10 of the roof cross member has at least one first mounting portion 16. That is to say, the bottom wall of the recessed portion 11 of the upper plate 10 of the roof cross member has one first mounting portion 16, or the bottom wall of the recessed portion 11 of the upper plate 10 of the roof cross member has multiple first mounting portions 16. The first mounting portion 16 is used for mounting the lidar 90. In some embodiments of the present application, the number of the first mounting portions 16 is four.

[0044] In some embodiments of the present application, the first mounting portion 16 can be configured as a first mounting hole, and a bolt can pass through the first mounting hole to be assembled with the lidar 90 in a matching manner.

[0045] In some embodiments of the present application, as Figure 1 shown, the upper plate 10 of the roof cross member has at least one second mounting portion 17. That is to say, the upper plate 10 of the roof cross member has one second mounting portion 17, or the upper plate 10 of the roof cross member has multiple second mounting portions 17. The second mounting portion 17 can be assembled with the radar trim panel 91 of the vehicle in a matching manner.

[0046] In some embodiments of the present application, the second mounting portion 17 can be configured as a second mounting hole, and a clamping member can pass through the second mounting hole to be assembled with the radar trim panel 91 in a matching manner.

[0047] In some embodiments of the present application, as Figure 1 shown, the upper plate 10 of the roof cross member has a wire passing hole 14 and a positioning hole 15. The wire passing hole 14 is used for passing a wire harness (such as but not limited to the wire harness of the lidar 90), and the positioning hole 15 is used for positioning (such as but not limited to the positioning of the upper plate 10 of the roof cross member with other components, and the positioning during the production of the upper plate 10 of the roof cross member).

[0048] In some embodiments of the present application, as Figure 1 shown, the roof cross member assembly 100 further includes a mounting lamp bracket 40 and an interior trim bracket 50. The mounting lamp bracket 40 can be connected to the upper plate 10 of the roof cross member and / or the lower plate 20 of the roof cross member, and the interior trim bracket 50 can be connected to the upper plate 10 of the roof cross member. In some embodiments of the present application, the mounting lamp bracket 40 is connected to the upper plate 10 of the roof cross member and / or the lower plate 20 of the roof cross member by means of bolt connection, and the interior trim bracket 50 is connected to the upper plate 10 of the roof cross member by means of bolt connection.

[0049] In some embodiments of the present application, as Figure 1As shown, the roof crossbeam assembly 100 includes a mounting lamp bracket 40. In some embodiments of the present application, as Figure 1 shown, the roof crossbeam assembly 100 includes four interior trim brackets 50.

[0050] By connecting the roof crossbeam lower plate 20 to the roof crossbeam upper plate 10, and making the roof crossbeam lower plate 20 recess away from the roof crossbeam upper plate 10 to jointly define a first cavity 60 with the roof crossbeam upper plate 10, and making the roof crossbeam lower plate 20 have a protruding portion 18 protruding into the first cavity 60, and providing side wall connectors 60 at both ends of the roof crossbeam upper plate 10 for connection to the vehicle's side wall 80, the cross-sectional characteristics of the roof crossbeam assembly 100 can be optimized, enabling the roof crossbeam assembly 100 to have sufficient structural strength, and furthermore, some reinforcement members can be omitted.

[0051] Thus, the structural optimization design of the roof crossbeam assembly 100 not only improves the stiffness of the assembly and the NVH performance of the whole vehicle, but also realizes lightweighting by reducing connection reinforcement members. Therefore, the optimization design of the roof crossbeam assembly 100 realizes the improvement of the whole vehicle's NVH while achieving cost reduction and weight reduction.

[0052] In some embodiments of the present application, as Figure 2 shown, the recess depth C of the recess portion 11 can be 16 mm.

[0053] The length direction of the roof crossbeam lower plate 20 extends along the width direction of the vehicle (i.e., Figure 1 the Y direction shown) and is perpendicular to the length direction of the vehicle.

[0054] In some embodiments of the present invention, as Figure 1 shown, the first cavity 60 and the protruding portion 18 both extend along the length direction of the roof crossbeam lower plate 20, and the length direction of the roof crossbeam lower plate 20 is perpendicular to the length direction of the vehicle (i.e., Figure 1 the X direction shown).

[0055] Among them, the roof crossbeam lower plate 20 extends along the width direction of the vehicle (i.e., Figure 1 the Y direction shown), and the first cavity 60 and the protruding portion 18 both extend along the length direction of the roof crossbeam lower plate 20.

[0056] The length direction of the roof crossbeam lower plate 20, which is also the width direction of the vehicle (i.e., Figure 1 the Y direction shown).

[0057] By extending both the first cavity 60 and the convex portion 18 along the length direction of the lower plate 20 of the roof cross member, the cross-sectional characteristics of the roof cross member assembly 100 can be optimized, enabling the roof cross member assembly 100 to have sufficient structural strength, which is beneficial to improving the NVH performance of the vehicle.

[0058] In some embodiments of the present utility model, such as Figure 4 shown, along the length direction of the vehicle (i.e., Figure 1 the X direction shown), the size of the first cavity 60 is A, satisfying the relationship: 90mm ≤ A ≤ 95mm.

[0059] Wherein, along the length direction of the vehicle (i.e., Figure 1 the X direction shown), the size of the first cavity 60 is A, and A can satisfy the relationship: 90mm ≤ A ≤ 95mm, that is, along the length direction of the vehicle (i.e., Figure 1 the X direction shown), the size of the first cavity 60 can be any value between 90mm and 95mm. For example, along the length direction of the vehicle (i.e., Figure 1 the X direction shown), the size of the first cavity 60 can be but is not limited to 90mm, 92.5mm, 95mm, etc. As some embodiments of the present application, along the length direction of the vehicle (i.e., Figure 1 the X direction shown), the size of the first cavity 60 can be 92.5mm.

[0060] By making the size of the first cavity 60 along the length direction of the vehicle (i.e., Figure 1 the X direction shown) can be any value between 90mm and 95mm, the cross-sectional characteristics of the roof cross member assembly 100 can be optimized, which is beneficial to improving the NVH performance of the vehicle.

[0061] In some embodiments of the present utility model, such as Figure 1 , Figure 4 and Figure 6As shown in the figure, the lower plate 20 of the roof cross member includes: a first sub-plate body 21, a second sub-plate body 22, a third sub-plate body 23, a first connecting flange 24, and a second connecting flange 25. Along the length direction of the vehicle, the first sub-plate body 21 and the third sub-plate body 23 are opposite and spaced apart. The second sub-plate body 22 is connected between the first sub-plate body 21 and the third sub-plate body 23. The second sub-plate body has a convex portion 18. One end of the first sub-plate body 21 away from the second sub-plate body 22 is connected with the first connecting flange 24, and one end of the third sub-plate body 23 away from the second sub-plate body 22 is connected with the second connecting flange 25. Both the first connecting flange 24 and the second connecting flange 25 extend along the length direction of the vehicle. The first connecting flange 24 is attached to and fixedly connected with the lower surface of the upper plate 20 of the roof cross member, and the second connecting flange 25 is attached to and fixedly connected with the lower surface of the upper plate 20 of the roof cross member. The upper plate 20 of the roof cross member, the first sub-plate body 21, the second sub-plate body 22, and the third sub-plate body 23 enclose a first cavity 60 in sequence.

[0062] Among them, the first sub-plate body 21, the second sub-plate body 22, and the third sub-plate body 23 can jointly define the first cavity 60. Specifically, both the first sub-plate body 21 and the third sub-plate body 23 have one end close to the second sub-plate body 22 and one end away from the second sub-plate body 22. The ends of the first sub-plate body 21 and the third sub-plate body 23 close to the second sub-plate body 22 are respectively connected to both ends of the second sub-plate body 22. One end of the first sub-plate body 21 away from the second sub-plate body 22 is connected with the first connecting flange 24, and one end of the third sub-plate body 23 away from the second sub-plate body 22 is connected with the second connecting flange 25. The first connecting flange 24 is welded to the upper plate 10 of the roof cross member, and the second connecting flange 25 is welded to the upper plate 10 of the roof cross member.

[0063] As some embodiments of the present application, the first sub-plate body 21, the second sub-plate body 22, the third sub-plate body 23, the first connecting flange 24, and the second connecting flange 25 are integrally formed.

[0064] Such a setting can make the structural form of the lower plate 20 of the roof cross member reasonable, can optimize the cross-sectional characteristics and lapping of the roof cross member assembly 100, and can make the roof cross member assembly 100 have sufficient structural strength, so that some strengthening members can be omitted, which is not only beneficial to improving the NVH performance of the vehicle, but also beneficial to the lightweight design of the vehicle.

[0065] In some embodiments of the present invention, as Figure 1 and Figure 7 shown, the side wall connecting member 30 is recessed in a direction away from the upper plate 10 of the roof cross member to jointly define a second cavity 70 with the upper plate 10 of the roof cross member. The first cavity 60 and the second cavity 70 extend along the length direction of the upper plate 20 of the roof cross member and are continuously arranged.

[0066] Among them, along the height direction of the vehicle (i.e., Figure 1 the Z direction shown), the side wall connecting member 30 is recessed downward in a direction away from the upper plate 10 of the roof cross member, and the side wall connecting member 30 can jointly define a second cavity 70 with the upper plate 10 of the roof cross member, and the second cavity 70 is communicated with the first cavity 60.

[0067] By defining a second cavity 70 between the side wall connecting member 30 and the upper plate 10 of the roof cross member, the cross-sectional characteristics of the roof cross member assembly 100 can be optimized, which is beneficial to reducing the roaring sound caused by the vibration of the roof cross member assembly 100 and further improving the NVH performance of the vehicle.

[0068] In some embodiments of the present utility model, as Figure 7 shown, the side wall connecting member 30 includes: a fourth sub-plate body 31, a fifth sub-plate body 32, a sixth sub-plate body 33, a third connecting flange 34 and a fourth connecting flange 35. Along the length direction of the vehicle, the fourth sub-plate body 31 and the sixth sub-plate body 33 are opposite and spaced apart, the fifth sub-plate body 32 is connected between the fourth sub-plate body 31 and the sixth sub-plate body 33, one end of the fourth sub-plate body 31 away from the fifth sub-plate body 32 is connected with the third connecting flange 34, one end of the sixth sub-plate body away from the fifth sub-plate body 32 is connected with the fourth connecting flange 35, and both the third connecting flange and the fourth connecting flange 35 extend along the length direction of the vehicle. The third connecting flange 34 is attached to and fixedly connected with the lower surface of the upper plate 20 of the roof cross member, the fourth connecting flange 35 is attached to and fixedly connected with the lower surface of the upper plate 20 of the roof cross member, and the upper plate 20 of the roof cross member, the fourth sub-plate body 31, the fifth sub-plate body 32 and the sixth sub-plate body 33 enclose to form the second cavity 70 in sequence.

[0069] Among them, the fourth sub-plate body 31, the fifth sub-plate body 32 and the sixth sub-plate body 33 can jointly define the second cavity 70. Specifically, both the fourth sub-plate body 31 and the sixth sub-plate body 33 have one end close to the fifth sub-plate body 32 and one end away from the fifth sub-plate body 32. One ends of the fourth sub-plate body 31 and the sixth sub-plate body 33 close to the fifth sub-plate body 32 are respectively connected with both ends of the fifth sub-plate body 32. One end of the fourth sub-plate body 31 away from the fifth sub-plate body 32 is connected with the third connecting flange 34, one end of the sixth sub-plate body 33 away from the fifth sub-plate body 32 is connected with the fourth connecting flange 35, the third connecting flange 34 is welded to the upper plate 10 of the roof cross member, and the fourth connecting flange 35 is welded to the upper plate 10 of the roof cross member.

[0070] As some embodiments of the present application, the fourth sub-plate body 31, the fifth sub-plate body 32, the sixth sub-plate body 33, the third connecting flange 34 and the fourth connecting flange 35 are integrally formed.

[0071] This setting can make the structural form of the side wall connecting member 30 reasonable, optimize the cross-sectional characteristics and lap joint of the roof crossbeam assembly 100, enable the roof crossbeam assembly 100 to have sufficient structural strength, so that some reinforcing members can be omitted, which is not only beneficial to improving the NVH performance of the vehicle, but also beneficial to the lightweight design of the vehicle.

[0072] In some embodiments of the present invention, such as Figure 7 shown, along the length direction of the vehicle (i.e., Figure 1 the X direction shown), the size of the second cavity 70 is B, satisfying the relationship: 90mm ≤ B ≤ 95mm.

[0073] Among them, along the length direction of the vehicle (i.e., Figure 1 the X direction shown), the size of the second cavity 70 is B, and B can satisfy the relationship: 90mm ≤ B ≤ 95mm, that is, along the length direction of the vehicle (i.e., Figure 1 the X direction shown), the size of the second cavity 70 can be any value between 90mm and 95mm. For example, along the length direction of the vehicle (i.e., Figure 1 the X direction shown), the size of the second cavity 70 can be but not limited to 90mm, 92.5mm, 95mm, etc. As some embodiments of the present application, along the length direction of the vehicle (i.e., Figure 1 the X direction shown), the size of the second cavity 70 can be 92.5mm.

[0074] By making the size of the second cavity 70 along the length direction of the vehicle (i.e., Figure 1 the X direction shown) can be any value between 90mm and 95mm, the cross-sectional characteristics of the roof crossbeam assembly 100 can be optimized, which is beneficial to improving the NVH performance of the vehicle.

[0075] In some embodiments of the present invention, along the height direction of the vehicle (i.e., Figure 1 the Z direction shown), a part of the structure of the side wall connecting member 30 is located on the side of the roof crossbeam lower plate 20 away from the roof crossbeam upper plate 10 and is connected to the roof crossbeam lower plate 20.

[0076] Specifically, a part of the structure of the side wall connecting member 30 is located below the roof crossbeam lower plate 20 and is connected to the roof crossbeam lower plate 20. That is to say, a part of the structure of the roof crossbeam upper plate 10, a part of the structure of the roof crossbeam lower plate 20, and a part of the structure of the side wall connecting member 30 are stacked in three layers. This setting can optimize the cross-sectional characteristics of the roof crossbeam assembly 100, which is beneficial to improving the NVH performance of the vehicle.

[0077] In some embodiments of the present invention, such as Figure 1As shown, the upper plate 10 of the roof crossbeam includes: an upper plate body 19, a fifth connecting flange 12, and a sixth connecting flange 13. Along the length direction of the vehicle (i.e., Figure 1 the X direction shown), the fifth connecting flange 12 is connected to the front end of the upper plate body 19, the sixth connecting flange 13 is connected to the rear end of the upper plate body 19, the fifth connecting flange 12 is bonded to the front windshield of the vehicle, and the sixth connecting flange 13 is bonded to the skylight glass of the vehicle.

[0078] Wherein, the upper plate body 19, the fifth connecting flange 12, and the sixth connecting flange 13 are integrally formed. The fifth connecting flange 12 is bonded to the front windshield of the vehicle through glass glue, and the sixth connecting flange 13 is bonded to the skylight glass of the vehicle through glass glue.

[0079] By making the upper plate 10 of the roof crossbeam include the upper plate body 19, the fifth connecting flange 12, and the sixth connecting flange 13, the structural form of the upper plate 10 of the roof crossbeam can be made reasonable. And by bonding the fifth connecting flange 12 to the front windshield of the vehicle and the sixth connecting flange 13 to the skylight glass of the vehicle, the installation firmness of the upper plate 10 of the roof crossbeam can be increased, and the booming caused by the vibration of the roof crossbeam assembly 100 can be reduced.

[0080] It should be noted that Figure 8 FIG. is a comparison diagram of the noise responses of the left ear of the driver and the right ear of the rear right passenger in a vehicle provided with the roof crossbeam assembly 100 proposed in this application and in the prior art. From Figure 8 it can be seen that by using the roof crossbeam assembly 100 proposed in this application, the noise response of the vehicle has decreased significantly.

[0081] The vehicle according to the embodiment of the present utility model includes the roof crossbeam assembly 100 of the vehicle in the above embodiment. The optimized design of the structure of the roof crossbeam assembly 100 not only improves the stiffness of the assembly and the NVH performance of the whole vehicle, but also realizes lightweight by reducing the connecting reinforcement parts. Thus, through the optimized design of the roof crossbeam assembly 100, while improving the NVH of the whole vehicle, cost reduction and weight reduction are achieved.

[0082] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model.

[0083] In the description of the present utility model, the "first feature" and the "second feature" may include one or more of such features.

[0084] In the description of the present utility model, the meaning of "a plurality of" is two or more.

[0085] In the description of the present utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween.

[0086] In the description of the present utility model, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature.

[0087] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0088] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A roof cross member assembly of a vehicle, characterized in that, Including: An upper plate of the roof crossbeam and a lower plate of the roof crossbeam. Along the height direction of the vehicle, the lower plate of the roof crossbeam is connected to the upper plate of the roof crossbeam. The upper plate of the roof crossbeam has a recessed portion recessed towards the lower plate of the roof crossbeam, and the recessed portion is used for installing a lidar of the vehicle. The lower plate of the roof crossbeam is recessed in a direction away from the upper plate of the roof crossbeam to jointly define a first cavity with the upper plate of the roof crossbeam, and the lower plate of the roof crossbeam has a protruding portion protruding towards the first cavity. Side wall connectors are provided at both ends of the upper plate of the roof crossbeam, and the side wall connectors are adapted to be connected to the side wall of the vehicle.

2. The roof cross member assembly of a vehicle according to claim 1, characterized in that, Both the first cavity and the protruding portion extend along the length direction of the lower plate of the roof crossbeam, and the length direction of the lower plate of the roof crossbeam is perpendicular to the length direction of the vehicle.

3. The roof cross member assembly of a vehicle according to claim 1, characterized in that, Along the length direction of the vehicle, the size of the first cavity is A, satisfying the relationship: 90mm ≤ A ≤ 95mm.

4. The roof cross member assembly of a vehicle according to claim 1, characterized in that, The lower plate of the roof crossbeam includes: a first sub-plate body, a second sub-plate body, a third sub-plate body, a first connecting flange and a second connecting flange. Along the length direction of the vehicle, the first sub-plate body and the third sub-plate body are opposite and spaced apart, the second sub-plate body is connected between the first sub-plate body and the third sub-plate body, the second sub-plate body has the protruding portion, one end of the first sub-plate body away from the second sub-plate body is connected with the first connecting flange, one end of the third sub-plate body away from the second sub-plate body is connected with the second connecting flange, both the first connecting flange and the second connecting flange extend along the length direction of the vehicle, the first connecting flange is attached and fixedly connected to the lower surface of the upper plate of the roof crossbeam, the second connecting flange is attached and fixedly connected to the lower surface of the upper plate of the roof crossbeam, and the upper plate of the roof crossbeam, the first sub-plate body, the second sub-plate body and the third sub-plate body sequentially enclose to form the first cavity.

5. The roof cross member assembly of a vehicle according to claim 1, characterized in that, The side wall connector is recessed in a direction away from the upper plate of the roof crossbeam to jointly define a second cavity with the upper plate of the roof crossbeam, and the first cavity and the second cavity extend along the length direction of the upper plate of the roof crossbeam and are continuously arranged.

6. The roof cross member assembly of the vehicle according to claim 5, characterized in that, The side wall connecting member includes: a fourth sub-plate body, a fifth sub-plate body, a sixth sub-plate body, a third connecting flange and a fourth connecting flange. Along the length direction of the vehicle, the fourth sub-plate body and the sixth sub-plate body are opposite and spaced apart, the fifth sub-plate body is connected between the fourth sub-plate body and the sixth sub-plate body, one end of the fourth sub-plate body away from the fifth sub-plate body is connected with the third connecting flange, one end of the sixth sub-plate body away from the fifth sub-plate body is connected with the fourth connecting flange, both the third connecting flange and the fourth connecting flange extend along the length direction of the vehicle, the third connecting flange is attached to and fixedly connected with the lower surface of the upper plate of the roof cross beam, the fourth connecting flange is attached to and fixedly connected with the lower surface of the upper plate of the roof cross beam, and the upper plate of the roof cross beam, the fourth sub-plate body, the fifth sub-plate body and the sixth sub-plate body enclose to form the second cavity in sequence.

7. The roof cross member assembly of a vehicle according to claim 5, characterized in that, Along the length direction of the vehicle, the size of the second cavity is B, satisfying the relation: 90mm ≤ B ≤ 95mm.

8. The roof cross member assembly of a vehicle according to claim 1, characterized in that, Along the height direction of the vehicle, a part of the structure of the side wall connecting member is located on the side of the lower plate of the roof cross beam away from the upper plate of the roof cross beam and is connected with the lower plate of the roof cross beam, so that a part of the structure of the upper plate of the roof cross beam, a part of the structure of the lower plate of the roof cross beam and a part of the structure of the side wall connecting member are stacked in three layers.

9. The roof cross member assembly of a vehicle according to claim 1, characterized in that, The upper plate of the roof cross beam includes: an upper plate body, a fifth connecting flange and a sixth connecting flange. Along the length direction of the vehicle, the fifth connecting flange is connected with the front end of the upper plate body, the sixth connecting flange is connected with the rear end of the upper plate body, the fifth connecting flange is bonded with the front windshield glass of the vehicle, and the sixth connecting flange is bonded with the skylight glass of the vehicle.

10. A vehicle, characterized in that, It includes a roof cross beam assembly of the vehicle according to any one of claims 1-9.

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