Body strengthening structure and vehicle

Abstract

The present invention provides a vehicle body reinforcement structure and a vehicle, relating to the technical field of automobiles. The vehicle body reinforcement structure includes a roof panel assembly, a front roof cross member, a rear roof cross member, a first side panel assembly, and a second side panel assembly; the roof panel assembly includes an outer roof panel and a skylight reinforcement plate, the first side panel assembly has a first extension portion, and the second side panel assembly has a second extension portion. The vehicle includes the vehicle body reinforcement structure. By having the first extension portion on the first side panel assembly, the second extension portion on the second side panel assembly, the first extension portion overlapping and fixedly connecting with the skylight reinforcement plate, and the second extension portion overlapping and fixedly connecting with the skylight reinforcement plate, the torsional stiffness of the vehicle body and the vehicle body torsional mode can be improved, thereby ensuring good NVH performance, VD performance, and durability performance of the whole vehicle.

Description

Technical Field

[0001] The present invention relates to the technical field of automobiles, and particularly to a vehicle body reinforcement structure and a vehicle. Background Art

[0002] With the improvement of people's living standards, automobiles have become the most commonly used means of transportation for people. As people's demands for the comfort and practicality of automobiles continue to increase, the functions of automobiles have also been continuously enhanced during the design process. Among them, a panoramic sunroof is one of the necessary equipment for modern automobiles.

[0003] In the related art, the sunroof is installed on the roof assembly, and the roof assembly includes an outer roof panel and a sunroof reinforcement plate. The roof assembly is respectively lap-connected to the front roof cross member, the rear roof cross member, the left side body assembly, and the right side body assembly. In order to improve the light transmittance inside the vehicle and the air circulation inside the vehicle, the opening of the panoramic sunroof is increased.

[0004] However, with the increase in the opening of the panoramic sunroof, the torsional stiffness and torsional mode of the vehicle body will decrease. Summary of the Invention

[0005] The present invention provides a vehicle body reinforcement structure and a vehicle to solve the problem that the torsional stiffness and torsional mode of the vehicle body decrease with the increase in the opening of the panoramic sunroof.

[0006] On the one hand, the present invention provides a vehicle body reinforcement structure, including a roof assembly, a front roof cross member, a rear roof cross member, a first side body assembly, and a second side body assembly;

[0007] The first side body assembly and the second side body assembly are oppositely arranged, the front roof cross member and the rear roof cross member are respectively connected between the first side body assembly and the second side body assembly, and the front roof cross member and the rear roof cross member are oppositely arranged;

[0008] The roof assembly includes an outer roof panel and a sunroof reinforcement plate, the first side body assembly includes a first side body main body and a first extension part, the second side body assembly includes a second side body main body and a second extension part, the outer roof panel is respectively lap-connected and fixedly connected to the front roof cross member, the rear roof cross member, the first side body main body, and the second side body main body, and the sunroof reinforcement plate is respectively lap-connected and fixedly connected to the front roof cross member, the rear roof cross member, the first extension part, and the second extension part.

[0009] Optionally, the first side body main body includes a first side body outer panel, a first upper side beam outer panel, and a first upper side beam inner panel. The first side body outer panel is connected to the outer roof panel, and the first extension part is connected to the first upper side beam outer panel and / or the first upper side beam inner panel, and the first extension part extends towards the interior of the vehicle;

[0010] The second side wall main body includes a second side wall outer panel, a second upper side beam outer panel, and a second upper side beam inner panel. The second side wall outer panel is connected to the roof outer panel. The second extension portion is connected to the second upper side beam outer panel and / or the second upper side beam inner panel, and the second extension portion extends towards the interior of the vehicle;

[0011] A plurality of first bolt mounting portions and a plurality of first gluing portions are provided on the first extension portion. The plurality of first bolt mounting portions are used to screw the first extension portion and the skylight reinforcement plate together, and the plurality of first gluing portions are used to bond the first extension portion and the skylight reinforcement plate together with structural adhesive;

[0012] A plurality of second bolt mounting portions and a plurality of second gluing portions are provided on the second extension portion. The plurality of second bolt mounting portions are used to screw the second extension portion and the skylight reinforcement plate together, and the plurality of second gluing portions are used to bond the second extension portion and the skylight reinforcement plate together with structural adhesive.

[0013] Optionally, the first extension portion includes a plurality of first extension plates. The plurality of first extension plates are spaced apart in the front-rear direction of the vehicle, and each first extension plate is provided with the first bolt mounting portion and the first gluing portion;

[0014] The second extension portion includes a plurality of second extension plates. The plurality of second extension plates are spaced apart in the front-rear direction of the vehicle, and each second extension plate is provided with the second bolt mounting portion and the second gluing portion.

[0015] Optionally, the first bolt mounting portion is a first bolt mounting hole, the first gluing portion is a first gluing surface, and the first bolt mounting portion and the first gluing portion are arranged in a stepped manner on the first extension plate;

[0016] The second bolt mounting portion is a second bolt mounting hole, the second gluing portion is a second gluing surface, and the second bolt mounting portion and the second gluing portion are arranged in a stepped manner on the second extension plate.

[0017] Optionally, the skylight reinforcement plate includes a first cross beam, a second cross beam, a first longitudinal beam, and a second longitudinal beam. The first longitudinal beam is respectively lap-connected to the first cross beam and the second cross beam, the second longitudinal beam is respectively lap-connected to the first cross beam and the second cross beam, the first cross beam and the second cross beam are arranged opposite to each other, and the first longitudinal beam and the second longitudinal beam are arranged opposite to each other;

[0018] The first cross beam is lap-connected to the front roof cross beam, the second cross beam is lap-connected to the rear roof cross beam, the first longitudinal beam is lap-connected to the first extension portion, and the second longitudinal beam is lap-connected to the second extension portion.

[0019] Optionally, a plurality of first sunroof mounting portions are disposed on the first longitudinal beam, a plurality of second sunroof mounting portions are disposed on the second longitudinal beam, a plurality of the first sunroof mounting portions are disposed close to the first side panel assembly, a plurality of the second sunroof mounting portions are disposed close to the second side panel assembly, a plurality of the first sunroof mounting portions have centers located on a first straight line, and a plurality of the second sunroof mounting portions have centers located on a second straight line;

[0020] Centers of the plurality of first bolt mounting portions are disposed close to the first straight line, and centers of the plurality of second bolt mounting portions are disposed close to the second straight line.

[0021] Optionally, the first longitudinal beam is further provided with a plurality of first mounting legs, the second longitudinal beam is further provided with a plurality of second mounting legs, the plurality of first mounting legs are provided close to the first side enclosure assembly, the plurality of second mounting legs are provided close to the second side enclosure assembly, the plurality of first mounting legs are used to overlap with the first side enclosure outer panel, and the plurality of second mounting legs are used to overlap with the second side enclosure outer panel;

[0022] The plurality of first extension plates are staggered with the plurality of first mounting legs, and the plurality of second extension plates are staggered with the plurality of second mounting legs.

[0023] Optionally, both ends of the front cross beam of the top cover are screwed together with the first cross beam, and the middle of the front cross beam of the top cover is bonded together with the first cross beam using structural adhesive;

[0024] The two ends of the rear cross beam of the top cover are screwed together with the second cross beam, and the middle of the rear cross beam of the top cover is bonded together with the second cross beam by using structural adhesive.

[0025] Optionally, a plurality of first welding avoidance holes are provided on the first roof side beam inner plate, the plurality of first welding avoidance holes are arranged at intervals in the front-rear direction of the vehicle, and the plurality of first welding avoidance holes are used to connect the roof outer plate, the first side panel outer plate and the first roof side beam outer plate by three-layer spot welding;

[0026] A plurality of second welding avoidance holes are arranged on the second upper side beam inner plate, and the plurality of second welding avoidance holes are arranged at intervals in the front-rear direction of the vehicle, and the plurality of second welding avoidance holes are used to connect the roof outer plate, the second side panel outer plate and the second upper side beam outer plate by three-layer spot welding.

[0027] In another aspect, the present invention provides a vehicle, comprising: a sunroof and the vehicle body reinforcement structure as described above;

[0028] The sunroof is detachably mounted on the vehicle body reinforcement structure.

[0029] The present invention provides a vehicle body strengthening structure and a vehicle. The vehicle body strengthening structure includes a roof panel assembly, a front roof crossmember, a rear roof crossmember, a first side panel assembly, and a second side panel assembly. The roof panel assembly includes an outer roof panel and a sunroof reinforcement plate. The first side panel assembly includes a first side panel main body and a first extension portion. The second side panel assembly includes a second side panel main body and a second extension portion. The outer roof panel is respectively lapped and fixedly connected with the front roof crossmember, the rear roof crossmember, the first side panel main body, and the second side panel main body. The sunroof reinforcement plate is respectively lapped and fixedly connected with the front roof crossmember, the rear roof crossmember, the first extension portion, and the second extension portion. By having the first extension portion in the first side panel assembly and the second extension portion in the second side panel assembly, with the first extension portion and the sunroof reinforcement plate lapping and fixedly connecting with each other, and the second extension portion and the sunroof reinforcement plate lapping and fixedly connecting with each other, the torsional stiffness of the vehicle body and the torsional mode of the vehicle body can be improved, thereby ensuring good NVH performance, VD performance, and durability performance of the whole vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0031] Figure 1 It is a schematic structural diagram of a vehicle body strengthening structure provided by an embodiment of the present invention;

[0032] Figure 2 For Figure 1 the exploded structural diagram of the vehicle body strengthening structure in

[0033] Figure 3 For Figure 2 the schematic structural diagram of the roof panel assembly in

[0034] Figure 4 For Figure 3 the exploded structural diagram of the sunroof reinforcement plate in

[0035] Figure 5 For Figure 4 the schematic structural diagram of the first lapping portion and the fifth lapping portion in

[0036] Figure 6 For Figure 2 the schematic structural diagram of the first side panel assembly and the second side panel assembly in

[0037] Figure 7 For Figure 6 the partial schematic structural diagram of the first side panel assembly in

[0038] Figure 8 The sectional structure schematic diagram at A-A in Figure 1 ;

[0039] Figure 9 The sectional structure schematic diagram at B-B in Figure 1 ;

[0040] Figure 10 The enlarged schematic diagram at C in Figure 6 ;

[0041] Description of the reference numerals in the drawings:

[0042] 10 - Roof cover assembly; 11 - Outer roof panel; 12 - Sunroof reinforcement plate; 121 - First cross beam; 122 - Second cross beam; 123 - First longitudinal beam; 124 - Second longitudinal beam; 12111 - Counterbore; 12112 - First stepped surface; 12113 - First flanging; 1233 - First sunroof mounting part; 1234 - First mounting leg; 1243 - Second sunroof mounting part; 1244 - Second mounting leg; 1211 - First overlapping part; 1212 - Second overlapping part; 1221 - Third overlapping part; 1222 - Fourth overlapping part; 1231 - Fifth overlapping part; 12311 - Avoidance groove; 12312 - Second stepped surface; 12313 - Second flanging; 1232 - Sixth overlapping part; 1241 - Seventh overlapping part; 1242 - Eighth overlapping part.

[0043] 20 - Front roof cross beam; 30 - Rear roof cross beam; 40 - First side wall assembly; 41 - First side wall main body; 411 - First side wall outer panel; 412 - First upper side beam outer panel; 413 - First upper side beam inner panel; 4131 - First welding avoidance hole; 42 - First extension part; 421 - First bolt mounting part; 422 - First gluing part; 50 - Second side wall assembly; 51 - Second side wall main body; 52 - Second extension part. Detailed implementation manners

[0044] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0045] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0046] In the present invention, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0048] In the above description, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", 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 invention. 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. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0049] In the related art, a sunroof is installed on a roof assembly. The roof assembly includes an outer roof panel and a sunroof reinforcement plate. The roof assembly is respectively lap-connected to a front roof cross member, a rear roof cross member, a left body side assembly, and a right body side assembly. In order to improve the light transmittance inside the vehicle and the air circulation inside the vehicle, the opening of the panoramic sunroof is increased. However, with the increase in the opening of the panoramic sunroof, the torsional stiffness and torsional mode of the vehicle body will decrease.

[0050] To solve the above problems, the present invention provides a vehicle body strengthening structure and a vehicle. By having a first extension portion on the first body side assembly and a second extension portion on the second body side assembly, the first extension portion and the sunroof reinforcement plate are overlapped and fixedly connected to each other, and the second extension portion and the sunroof reinforcement plate are overlapped and fixedly connected to each other, the torsional stiffness and torsional mode of the vehicle body can be improved, thereby ensuring good NVH performance, VD performance, and durability performance of the whole vehicle.

[0051] The following will specifically describe the vehicle body strengthening structure and the vehicle provided by the embodiments of the present invention in conjunction with specific embodiments.

[0052] Figure 1 It is a schematic structural diagram of a vehicle body strengthening structure provided by an embodiment of the present invention; Figure 2 For Figure 1 an exploded structural diagram of the vehicle body strengthening structure in Figure 3 For Figure 2 a schematic structural diagram of the roof assembly in Figure 4 For Figure 3 an exploded structural diagram of the sunroof reinforcement plate in Figure 5 For Figure 4 a schematic structural diagram of the first overlapping portion and the fifth overlapping portion in Figure 6 For Figure 2 a schematic structural diagram of the first body side assembly and the second body side assembly in Figure 7 For Figure 6 a partial structural diagram of the first body side assembly in

[0053] As Figure 1 and Figure 2 shown, the embodiment of the present invention provides a vehicle body strengthening structure, including a roof assembly 10, a front roof cross member 20, a rear roof cross member 30, a first body side assembly 40, and a second body side assembly 50.

[0054] Wherein, the front of the vehicle is the front end of the vehicle, and the rear of the vehicle is the rear end of the vehicle; when looking from the rear of the vehicle towards the front of the vehicle, the left end of the vehicle is the left end of the vehicle; when looking from the rear of the vehicle towards the front of the vehicle, the right end of the vehicle is the right end of the vehicle; the bottom side of the vehicle is the bottom end of the vehicle, and the top side of the vehicle is the top end of the vehicle.

[0055] The first side wall assembly 40 is located at the left end of the vehicle, and the second side wall assembly 50 is located at the right end of the vehicle. The first side wall assembly 40 and the second side wall assembly 50 are arranged oppositely. The front roof cross member 20 and the rear roof cross member 30 are respectively connected between the first side wall assembly 40 and the second side wall assembly 50. The front roof cross member 20 and the rear roof cross member 30 are arranged oppositely. The front roof cross member 20 is arranged near the front end of the vehicle, and the rear roof cross member 30 is arranged near the rear end of the vehicle.

[0056] As Figure 6 shown, the first side wall assembly 40 includes a first side wall main body 41 and a first extension portion 42. The first side wall main body 41 and the first extension portion 42 are connected to each other. The first extension portion 42 can be formed by extending from the first side wall main body 41 towards the interior of the vehicle in the left-right direction of the vehicle.

[0057] The second side wall assembly 50 includes a second side wall main body 51 and a second extension portion 52. The second side wall main body 51 and the second extension portion 52 are connected to each other. The second extension portion 52 can be formed by extending from the second side wall main body 51 towards the interior of the vehicle in the left-right direction of the vehicle. It should be noted that the structure of the second side wall main body 51 is the same as that of the first side wall main body 41, and the structure of the second extension portion 52 is the same as that of the first extension portion 42.

[0058] As Figure 2 and Figure 3 shown, the roof assembly 10 includes a roof outer panel 11 and a sunroof reinforcement panel 12. Both the roof outer panel 11 and the sunroof reinforcement panel 12 include windows of the size of the sunroof. The roof assembly 10 is obtained by connecting the roof outer panel 11 and the sunroof reinforcement panel 12 in a stacked manner. Specifically, after the windows of the roof outer panel 11 and the windows of the sunroof reinforcement panel 12 are aligned vertically, they are connected together by at least two of the methods such as bonding with vibration isolation glue and structural glue, spot welding, and CO2 shielded welding.

[0059] The outer roof panel 11 overlaps and is fixedly connected to the front roof cross member 20, the rear roof cross member 30, the first side body 41 and the second side body 51 respectively, so that both ends of the outer roof panel 11 in the front-rear direction of the vehicle and both ends in the left-right direction of the vehicle can be fixed. Specifically, there is an overlapping part between the outer roof panel 11 and the front roof cross member 20. The outer roof panel 11 is located above the front roof cross member 20, and the outer roof panel 11 and the front roof cross member 20 can be connected together by spot welding and structural adhesive; there is an overlapping part between the outer roof panel 11 and the rear roof cross member 30. The outer roof panel 11 is located above the rear roof cross member 30, and the outer roof panel 11 and the rear roof cross member 30 can be connected together by spot welding and structural adhesive; there is an overlapping part between the outer roof panel 11 and the first side body 41. The outer roof panel 11 is located above the first side body 41, and the outer roof panel 11 and the first side body 41 can be connected together by spot welding and structural adhesive; there is an overlapping part between the outer roof panel 11 and the second side body 51. The outer roof panel 11 is located above the second side body 51, and the outer roof panel 11 and the second side body 51 can be connected together by spot welding and structural adhesive.

[0060] The sunroof reinforcement plate 12 can be a one-piece part or can be formed by combining multiple split parts. The sunroof reinforcement plate 12 overlaps and is fixedly connected to the front roof cross member 20, the rear roof cross member 30, the first extension part 42 and the second extension part 52 respectively, so that both ends of the sunroof reinforcement plate 12 in the front-rear direction of the vehicle and both ends in the left-right direction of the vehicle can be fixed.

[0061] Specifically, there is an overlapping part between the sunroof reinforcement plate 12 and the front roof cross member 20. The sunroof reinforcement plate 12 is located above the front roof cross member 20, and the sunroof reinforcement plate 12 and the front roof cross member 20 can be fixedly connected together by structural adhesive bonding and bolt screwing; there is an overlapping part between the sunroof reinforcement plate 12 and the rear roof cross member 30. The sunroof reinforcement plate 12 is located above the rear roof cross member 30, and the sunroof reinforcement plate 12 and the rear roof cross member 30 can be connected together by structural adhesive and bolts; as Figure 6 and Figure 7 shown, the first extension part 42 can be provided with a plurality of first bolt mounting parts 421 and a plurality of first glue application parts 422. The plurality of first bolt mounting parts 421 screw the first extension part 42 and the sunroof reinforcement plate 12 together, and the plurality of first glue application parts 422 bond the first extension part 42 and the sunroof reinforcement plate 12 together by structural adhesive; a plurality of second bolt mounting parts and a plurality of second glue application parts can be provided on the second extension part 52. The plurality of second bolt mounting parts screw the second extension part 52 and the sunroof reinforcement plate 12 together, and the plurality of second glue application parts bond the second extension part 52 and the sunroof reinforcement plate 12 together by structural adhesive.

[0062] The body strengthening structure provided by the embodiment of the present invention has a first extension portion 42 on the first side wall assembly 40 and a second extension portion 52 on the second side wall assembly 50. The first extension portion 42 and the sunroof reinforcement plate 12 overlap and are fixedly connected to each other, and the second extension portion 52 and the sunroof reinforcement plate 12 overlap and are fixedly connected to each other, which improves the connection strength between the roof assembly 10 and the first side wall assembly 40, and improves the connection strength between the roof assembly 10 and the second side wall assembly 50. Thus, the torsional stiffness and torsional mode of the vehicle body can be improved, and further, the good NVH performance, VD performance and durability performance of the whole vehicle can be ensured.

[0063] Figure 8 For Figure 1 the cross-sectional structure schematic diagram at A-A in Figure 9 For Figure 1 the cross-sectional structure schematic diagram at B-B in

[0064] Optionally, as Figure 8 and Figure 9 shown, the first side wall main body 41 includes a first side wall outer panel 411, a first upper side beam outer panel 412 and a first upper side beam inner panel 413. The first side wall outer panel 411 is connected to the roof outer panel 11, and the first extension portion 42 is connected to the first upper side beam outer panel 412 and / or the first upper side beam inner panel 413, and the first extension portion 42 extends towards the interior of the vehicle.

[0065] Among them, the first side wall outer panel 411 is connected to the outside of the first upper side beam outer panel 412, and the first upper side beam inner panel 413 is connected to the inside of the first upper side beam outer panel 412.

[0066] The roof outer panel 11 is connected to the first side wall outer panel 411. Specifically, there is an overlapping part between the roof outer panel 11 and the first side wall outer panel 411. The roof outer panel 11 is located above the first side wall outer panel 411, and the roof outer panel 11 and the first side wall outer panel 411 are connected together by structural adhesive.

[0067] The roof outer panel 11 is spot welded to the first side wall outer panel 411 and the first upper side beam outer panel 412.

[0068] The first extension portion 42 can be connected to the first upper side beam outer panel 412, or can be connected to the first upper side beam inner panel 413, or can be connected to both the first upper side beam outer panel 412 and the first upper side beam inner panel 413.

[0069] In an optional implementation manner, the first extension portion 42 is connected to the first upper side beam inner panel 413, and the first extension portion 42 and the first upper side beam inner panel 413 are integrally formed.

[0070] Optionally, the first extension portion 42 includes a plurality of first extension plates, which are spaced apart in the front-rear direction of the vehicle. Each first extension plate is provided with a first bolt mounting portion 421 and a first glue application portion 422. With such an arrangement, the weight of the first side wall assembly 40 can be reduced while ensuring the torsional stiffness of the vehicle body and the torsional mode of the vehicle body.

[0071] Of course, when the weight of the first side wall assembly 40 is not considered, the first extension portion 42 can be an undivided extension plate, which can increase the overlapping area between the sunroof reinforcement plate 12 and the first extension portion 42 in the front-rear direction of the vehicle, thereby improving the torsional stiffness of the vehicle body and the torsional mode of the vehicle body.

[0072] Wherein, the first extension plate can be a plate of any shape, and no specific setting is made here.

[0073] The number of the first bolt mounting portions 421 on the first extension plate can be determined according to actual needs, and no specific setting is made here. The number of the first glue application portions 422 on the first extension plate can be determined according to actual needs, and no specific setting is made here.

[0074] Figure 10 For Figure 6 the enlarged schematic view at C in

[0075] Furthermore, as Figure 10 shown, the first bolt mounting portion 421 is a first bolt mounting hole, the first glue application portion 422 is a first glue application surface, and the first bolt mounting portion 421 and the first glue application portion 422 are arranged in a stepped manner on the first extension plate. With such an arrangement, it can be avoided that the structural adhesive on the first glue application surface is extruded onto the first bolt mounting portion 421 during the bonding process between the first extension portion 42 and the sunroof reinforcement plate 12. At the same time, the stepped arrangement can effectively improve the stiffness of the first extension portion 42, so that the first extension portion 42 and the sunroof reinforcement plate 12 can be better connected and fixed, thereby improving the torsional stiffness of the vehicle body and the torsional mode of the vehicle body.

[0076] Wherein, the first extension plate is a stepped plate, and the first bolt mounting portion 421 and the first glue application portion 422 are arranged in a stepped manner on the first extension plate. It should be noted that the shape of the sunroof reinforcement plate 12 matches the shape of the first extension plate, and the part of the sunroof reinforcement plate 12 in contact with the first extension plate is also arranged in a stepped manner.

[0077] The first bolt mounting portion 421 fixedly connects the first extension portion 42 and the sunroof reinforcement plate 12 through bolts. The first glue application portion 422 fixedly connects the first extension portion 42 and the sunroof reinforcement plate 12 through structural adhesive.

[0078] After the sunroof reinforcement plate 12 and the first extension part 42 are adhesively bonded with structural adhesive, they are further bolted to reinforce their connection. The bolt connection can provide a rigid connection before the structural adhesive is baked, improve the connection effect of the structural adhesive bonding, and enhance the vehicle's modal and stiffness performance.

[0079] Optionally, the second sidewall main body 51 includes a second outer sidewall panel, a second upper side beam outer panel, and a second upper side beam inner panel. The second outer sidewall panel is connected to the outer roof panel, and the second extension part 52 is connected to the second upper side beam outer panel and / or the second upper side beam inner panel, and the second extension part 52 extends towards the interior of the vehicle. The specific structure of the second sidewall main body 51 can refer to the structure of the first sidewall main body 41.

[0080] Among them, the second outer sidewall panel is connected to the outside of the second upper side beam outer panel, and the second upper side beam inner panel is connected to the inside of the second upper side beam outer panel. The structure of the second outer sidewall panel is the same as that of the first outer sidewall panel 411; the structure of the second upper side beam outer panel is the same as that of the first upper side beam outer panel 412; the structure of the second upper side beam inner panel is the same as that of the first upper side beam inner panel 413.

[0081] The outer roof panel 11 is connected to the second outer sidewall panel. Specifically, there is an overlapping part between the outer roof panel 11 and the second outer sidewall panel. The outer roof panel 11 is located above the second outer sidewall panel, and the outer roof panel and the second outer sidewall panel are adhesively bonded together with structural adhesive.

[0082] The outer roof panel 11 is spot-welded to the second outer sidewall panel and the second upper side beam outer panel.

[0083] The second extension part 52 can be connected to the second upper side beam outer panel, or can be connected to the second upper side beam inner panel, or can also be connected to both the second upper side beam outer panel and the second upper side beam inner panel.

[0084] In an alternative embodiment, the second extension part 52 is connected to the second upper side beam inner panel and is integrally formed with the second upper side beam inner panel.

[0085] Optionally, the second extension part 52 includes a plurality of second extension plates, which are spaced apart in the front-rear direction of the vehicle. Each second extension plate is provided with a second bolt mounting part and a second glue application part. With such a setting, the weight of the second sidewall assembly 50 can be reduced while ensuring the torsional stiffness and torsional mode of the vehicle body. The specific structure of the second extension part 52 can refer to the structure of the first extension part 42.

[0086] Of course, when the weight of the second sidewall assembly 50 is not considered, the second extension part 52 can be an undivided extension plate, which can increase the overlapping area between the sunroof reinforcement plate 12 and the second extension part 52 in the front-rear direction of the vehicle, thereby improving the torsional stiffness and torsional mode of the vehicle body.

[0087] Among them, the shape of the second extension plate is consistent with that of the first extension plate.

[0088] The number of the second bolt mounting parts on the second extension plate can be determined according to actual needs and no specific setting is made here. The number of the second glue coating parts on the second extension plate can be determined according to actual needs and no specific setting is made here.

[0089] Further, the second bolt mounting part is a second bolt mounting hole, the second glue coating part is a second glue coating surface, and the second bolt mounting part and the second glue coating part are arranged in a stepped manner on the second extension plate. With such a setting, it can be avoided that the structural glue on the second glue coating surface is extruded onto the second bolt mounting part during the bonding process between the second extension part 52 and the sunroof reinforcement plate 12. At the same time, the stepped setting can effectively improve the stiffness of the second extension part 52, so that the second extension part 52 and the sunroof reinforcement plate 12 can be better connected and fixed, thereby improving the torsional stiffness and torsional mode of the vehicle body.

[0090] Among them, the second extension plate is a stepped plate, and the second bolt mounting part and the second glue coating part are arranged in a stepped manner on the second extension plate.

[0091] The second bolt mounting part fixedly connects the second extension part 52 and the sunroof reinforcement plate 12 through bolts. The second glue coating part fixedly connects the second extension part 52 and the sunroof reinforcement plate 12 through structural glue.

[0092] After the sunroof reinforcement plate 12 and the second extension part 52 are bonded through structural glue, the connection between the two is further strengthened through bolt connection. The bolt connection can provide a rigid connection before the structural glue is baked, improve the connection effect of the structural glue bonding, and improve the modal and stiffness performance of the whole vehicle.

[0093] Optionally, as Figure 4 shown, the sunroof reinforcement plate 12 includes a first cross beam 121, a second cross beam 122, a first longitudinal beam 123 and a second longitudinal beam 124. The first longitudinal beam 123 is respectively lap-connected with the first cross beam 121 and the second cross beam 122, the second longitudinal beam 124 is respectively lap-connected with the first cross beam 121 and the second cross beam 122, the first cross beam 121 and the second cross beam 122 are arranged oppositely, and the first longitudinal beam 123 and the second longitudinal beam 124 are arranged oppositely. With such a setting, through the mutual lap connection between the first cross beam 121, the second cross beam 122, the first longitudinal beam 123 and the second longitudinal beam 124, the torsional stiffness and torsional mode of the sunroof reinforcement plate 12 can be improved, so that the torsional stiffness and torsional mode of the vehicle body can be improved, and further the good NVH performance, VD performance and durability performance of the whole vehicle can be ensured.

[0094] Among them, there is an overlapping part between the first longitudinal beam 123 and the first cross beam 121, and the first longitudinal beam 123 and the first cross beam 121 can be connected together by at least one of structural adhesive bonding, spot welding, CO2 shielded arc welding, etc.

[0095] There is an overlapping part between the first longitudinal beam 123 and the second cross beam 122, and the first longitudinal beam 123 and the second cross beam 122 can be connected together by at least one of structural adhesive bonding, spot welding, CO2 shielded arc welding, etc.

[0096] There is an overlapping part between the second longitudinal beam 124 and the first cross beam 121, and the second longitudinal beam 124 and the first cross beam 121 can be connected together by at least one of structural adhesive bonding, spot welding, CO2 shielded arc welding, etc.

[0097] There is an overlapping part between the second longitudinal beam 124 and the second cross beam 122, and the second longitudinal beam 124 and the second cross beam 122 can be connected together by at least one of structural adhesive bonding, spot welding, CO2 shielded arc welding, etc.

[0098] The thicknesses of the first cross beam 121, the second cross beam 122, the first longitudinal beam 123 and the second longitudinal beam 124 are determined by sensitivity analysis, and the lightweight of the skylight reinforcement plate 12 can be achieved.

[0099] The first cross beam 121 is lap-connected with the front roof cross beam 20, the second cross beam 122 is lap-connected with the rear roof cross beam 30, the first longitudinal beam 123 is lap-connected with the first extension part 42, and the second longitudinal beam 124 is lap-connected with the second extension part 52.

[0100] Optionally, the two ends of the first cross beam 121 are provided with a first lap joint part 1211 and a second lap joint part 1212, the two ends of the second cross beam 122 are provided with a third lap joint part 1221 and a fourth lap joint part 1222, the two ends of the first longitudinal beam 123 are provided with a fifth lap joint part 1231 and a sixth lap joint part 1232, the two ends of the second longitudinal beam 124 are provided with a seventh lap joint part 1241 and an eighth lap joint part 1242. The structures of the first lap joint part 1211, the second lap joint part 1212, the third lap joint part 1221 and the fourth lap joint part 1222 are the same, and the structures of the fifth lap joint part 1231, the sixth lap joint part 1232, the seventh lap joint part 1241 and the eighth lap joint part 1242 are the same. The first lap joint part 1211 and the fifth lap joint part 1231 are used to be connected together by spot welding, the second lap joint part 1212 and the seventh lap joint part 1241 are used to be connected together by spot welding, the third lap joint part 1221 and the sixth lap joint part 1232 are used to be connected together by spot welding, and the fourth lap joint part 1222 and the eighth lap joint part 1242 are used to be connected together by spot welding.

[0101] Furthermore, as Figure 5As shown, the first overlapping portion 1211 is provided with a sunk platform 12111, and the fifth overlapping portion 1231 is provided with an avoidance groove 12311. The sunk platform 12111 can be stuck in the avoidance groove 12311. The sunk platform 12111 and the avoidance groove 12311 are used to position the first cross beam 121 and the first longitudinal beam 123. With such a setting, through the sunk platform 12111 and the avoidance groove 12311, the positioning and installation between the first overlapping portion 1211 and the fifth overlapping portion 1231 can be realized, thereby improving the installation accuracy between the first overlapping portion 1211 and the fifth overlapping portion 1231.

[0102] The shape of the sunk platform 12111 can be any shape and no specific setting is made here. The shape of the avoidance groove 12311 matches the shape of the sunk platform 12111.

[0103] The structures of the second overlapping portion 1212, the third overlapping portion 1221 and the fourth overlapping portion 1222 can refer to the structure of the first overlapping portion 1211. The structures of the sixth overlapping portion 1232, the seventh overlapping portion 1241 and the eighth overlapping portion 1242 can refer to the structure of the fifth overlapping portion 1231.

[0104] The installation methods between the first overlapping portion 1211 and the fifth overlapping portion 1231, between the second overlapping portion 1212 and the seventh overlapping portion 1241, between the third overlapping portion 1221 and the sixth overlapping portion 1232, and between the fourth overlapping portion 1222 and the eighth overlapping portion 1242 are all the same.

[0105] Optionally, as Figure 5 shown, the first overlapping portion 1211 is further provided with a first stepped surface 12112, and the fifth overlapping portion 1231 is further provided with a second stepped surface 12312. The first stepped surface 12112 and the second stepped surface 12312 are used to be connected together by structural adhesive. With such a setting, through the first stepped surface 12112 and the second stepped surface 12312, the positioning and installation between the first overlapping portion 1211 and the fifth overlapping portion 1231 can be realized, thereby further improving the installation accuracy between the first overlapping portion 1211 and the fifth overlapping portion 1231.

[0106] The shape of the first stepped surface 12112 can be any shape and no specific setting is made here. The shape of the second stepped surface 12312 matches the shape of the first stepped surface 12112.

[0107] Optionally, as Figure 5As shown, the first overlapping portion 1211 extends towards the middle of the first longitudinal beam 123 in the first circular arc direction, and the fifth overlapping portion 1231 extends towards the middle of the first cross beam 121 in the first circular arc direction. With such an arrangement, the first overlapping portion 1211 and the fifth overlapping portion 1231 can cover the area where the strain energy of the sunroof reinforcement plate is concentrated under the torsional condition.

[0108] The first overlapping portion 1211 is further provided with a first flanging 12113, and the fifth overlapping portion 1231 is further provided with a second flanging 12313. The first flanging 12113 and the second flanging 12313 are in contact with each other in the first circular arc direction. With such an arrangement, the torsional stiffness and torsional mode of the sunroof reinforcement plate 12 can be further improved, thereby improving the torsional stiffness and torsional mode of the vehicle body, and further ensuring good NVH performance, VD performance and durability performance of the whole vehicle.

[0109] It should be noted that the four top corners of the sunroof reinforcement plate 12 are all rounded corners. The first circular arc direction is the circular arc direction where the rounded corners are located at the first overlapping portion 1211 and the fifth overlapping portion 1231 of the sunroof reinforcement plate 12.

[0110] Optionally, as Figure 3 shown, a plurality of first sunroof mounting portions 1233 are provided on the first longitudinal beam 123, and a plurality of second sunroof mounting portions 1243 are provided on the second longitudinal beam 124. The plurality of first sunroof mounting portions 1233 are arranged close to the first side panel assembly 40, and the plurality of second sunroof mounting portions 1243 are arranged close to the second side panel assembly 50. The centers of the plurality of first sunroof mounting portions 1233 are located on a first straight line, and the centers of the plurality of second sunroof mounting portions 1243 are located on a second straight line. It should be noted that Figure 3 the dashed lines in

[0111] are the first straight line and the second straight line. The centers of the plurality of first bolt mounting portions 421 are arranged close to the first straight line, and the centers of the plurality of second bolt mounting portions are arranged close to the second straight line. With such an arrangement, it is beneficial to transfer the sunroof load and improve the load-bearing capacity of the vehicle body strengthening structure.

[0112] Among them, both the first sunroof mounting portion 1233 and the second sunroof mounting portion 1243 are sunroof mounting holes. The sunroof can be installed through the first sunroof mounting portion 1233 and the second sunroof mounting portion 1243.

[0113] In an alternative embodiment, the centers of the plurality of first bolt mounting portions 421 are located on the first straight line, and the centers of the plurality of second bolt mounting portions are located on the second straight line.

[0114] Furthermore, as Figure 3As shown in the figure, a plurality of first mounting legs 1234 are further provided on the first longitudinal beam 123, and a plurality of second mounting legs 1244 are further provided on the second longitudinal beam 124. Among them, there is an overlapping part between the first mounting leg 1234 and the outer roof panel 11, and the first mounting leg 1234 and the outer roof panel 11 are connected together by spot welding. There is an overlapping part between the second mounting leg 1244 and the outer roof panel 11, and the second mounting leg 1244 and the outer roof panel 11 are connected together by spot welding. With such a setting, the stiffness of the roof assembly 10 can be improved, facilitating the transportation of the roof assembly 10 during the production process.

[0115] A plurality of first mounting legs 1234 are arranged close to the first side wall assembly 40, and a plurality of second mounting legs 1244 are arranged close to the second side wall assembly 50. The plurality of first mounting legs 1234 are used for lapping with the outer panel 411 of the first side wall, and the plurality of second mounting legs 1244 are used for lapping with the outer panel of the second side wall. Among them, there is an overlapping part between the first mounting leg 1234 and the outer panel 411 of the first side wall, and the first mounting leg 1234 and the outer panel 411 of the first side wall are connected together by structural adhesive. There is an overlapping part between the second mounting leg 1244 and the outer panel of the second side wall, and the second mounting leg 1244 and the outer panel of the second side wall are connected together by structural adhesive. With such a setting, through the first mounting leg 1234 and the second mounting leg 1244, the connection strength between the roof assembly 10 and the first side wall assembly 40 can be improved, and the connection strength between the roof assembly 10 and the second side wall assembly 50 can be improved, thereby improving the torsional stiffness and torsional mode of the vehicle body, and further ensuring good NVH performance, VD performance and durability performance of the whole vehicle.

[0116] A plurality of first extension plates are arranged staggered with the plurality of first mounting legs 1234, and a plurality of second extension plates are arranged staggered with the plurality of second mounting legs 1244. With such a setting, the connection strength between the roof assembly 10 and the first side wall assembly 40 can be further improved, and the connection strength between the roof assembly 10 and the second side wall assembly 50 can be improved, thereby improving the torsional stiffness and torsional mode of the vehicle body, and further ensuring good NVH performance, VD performance and durability performance of the whole vehicle.

[0117] Optionally, both ends of the front roof cross beam 20 are screwed to the first cross beam 121, and the middle of the front roof cross beam 20 is bonded to the first cross beam 121 by structural adhesive. With such a setting, bolts can be arranged at the corner positions where the front roof cross beam 20 and the skylight reinforcement plate 12 are subjected to large forces, and the middle positions where the forces are small are connected by structural adhesive, which can make the force more reasonable and the connection more stable.

[0118] Both ends of the rear cross member 30 of the roof cover are screwed to the second cross member 122, and the middle of the rear cross member 30 of the roof cover is adhesively bonded to the second cross member 122 with structural adhesive. With such an arrangement, bolts can be arranged at the corner positions where the force is relatively large between the rear cross member 30 of the roof cover and the skylight reinforcement plate 12, and the middle position where the force is relatively small is connected with structural adhesive, which can make the force more reasonable and the connection more stable.

[0119] Optionally, as Figure 7 shown, a plurality of first welding avoidance holes 4131 are provided on the inner plate 413 of the first upper side member. The plurality of first welding avoidance holes 4131 are arranged at intervals in the front-rear direction of the vehicle. The plurality of first welding avoidance holes 4131 are used to connect the outer roof panel 11, the first outer side panel 411 and the first outer upper side member panel 412 by three-layer spot welding. With such an arrangement, the connection between the outer roof panel 11 and the first side assembly 40 can be made more stable.

[0120] A plurality of second welding avoidance holes are provided on the inner plate of the second upper side member. The plurality of second welding avoidance holes are arranged at intervals in the front-rear direction of the vehicle. The plurality of second welding avoidance holes are used to connect the outer roof panel 11, the second outer side panel and the second outer upper side member panel by three-layer spot welding. With such an arrangement, the connection between the outer roof panel 11 and the second side assembly 50 can be made more stable.

[0121] The embodiment of the present invention also provides a vehicle, a skylight and a body strengthening structure. The skylight is detachably mounted on the body strengthening structure.

[0122] Wherein, the body strengthening structure in this embodiment has the same structure as the body strengthening structure provided in any of the above embodiments, 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 embodiments.

[0123] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A vehicle body strengthening structure, characterized in that, It includes a roof assembly, a front roof crossmember, a rear roof crossmember, a first side panel assembly and a second side panel assembly; The first side panel assembly and the second side panel assembly are arranged oppositely, the front roof crossmember and the rear roof crossmember are respectively connected between the first side panel assembly and the second side panel assembly, and the front roof crossmember and the rear roof crossmember are arranged oppositely; The roof assembly includes a roof outer panel and a sunroof reinforcement panel, the first side panel assembly includes a first side panel main body and a first extension part, the second side panel assembly includes a second side panel main body and a second extension part, the roof outer panel is respectively lapped and fixedly connected with the front roof crossmember, the rear roof crossmember, the first side panel main body and the second side panel main body, and the sunroof reinforcement panel is respectively lapped and fixedly connected with the front roof crossmember, the rear roof crossmember, the first extension part and the second extension part; The first side panel main body includes a first side panel outer panel, a first upper side rail outer panel and a first upper side rail inner panel, the first side panel outer panel is connected with the roof outer panel, the first extension part is connected to the first upper side rail outer panel and / or the first upper side rail inner panel, and the first extension part extends towards the interior of the vehicle; The second side panel main body includes a second side panel outer panel, a second upper side rail outer panel and a second upper side rail inner panel, the second side panel outer panel is connected with the roof outer panel, the second extension part is connected to the second upper side rail outer panel and / or the second upper side rail inner panel, and the second extension part extends towards the interior of the vehicle; A plurality of first bolt mounting parts and a plurality of first gluing parts are arranged on the first extension part, the plurality of first bolt mounting parts are used for screwing the first extension part and the sunroof reinforcement panel together, and the plurality of first gluing parts are used for bonding the first extension part and the sunroof reinforcement panel together with structural adhesive; A plurality of second bolt mounting parts and a plurality of second gluing parts are arranged on the second extension part, the plurality of second bolt mounting parts are used for screwing the second extension part and the sunroof reinforcement panel together, and the plurality of second gluing parts are used for bonding the second extension part and the sunroof reinforcement panel together with structural adhesive; The first extension part includes a plurality of first extension plates, the plurality of first extension plates are arranged at intervals in the front-rear direction of the vehicle, and each first extension plate is provided with the first bolt mounting part and the first gluing part; The second extension part includes a plurality of second extension plates, the plurality of second extension plates are arranged at intervals in the front-rear direction of the vehicle, and each second extension plate is provided with the second bolt mounting part and the second gluing part; The first bolt mounting part is a first bolt mounting hole, the first gluing part is a first gluing surface, and the first bolt mounting part and the first gluing part are arranged in a stepped manner on the first extension plate; The second bolt mounting part is a second bolt mounting hole, the second gluing part is a second gluing surface, and the second bolt mounting part and the second gluing part are arranged in a stepped manner on the second extension plate.

2. The vehicle body reinforcement structure according to claim 1, wherein The sunroof reinforcement plate comprises a first cross beam, a second cross beam, a first longitudinal beam and a second longitudinal beam, the first longitudinal beam is overlapped and connected with the first cross beam and the second cross beam respectively, the second longitudinal beam is overlapped and connected with the first cross beam and the second cross beam respectively, the first cross beam and the second cross beam are arranged opposite to each other, and the first longitudinal beam and the second longitudinal beam are arranged opposite to each other; The first cross beam is overlapped and connected with the front cross beam of the roof, the second cross beam is overlapped and connected with the rear cross beam of the roof, the first longitudinal beam is overlapped and connected with the first extension part, and the second longitudinal beam is overlapped and connected with the second extension part.

3. The vehicle body reinforcement structure according to claim 2, characterized in that, A plurality of first sunroof mounting portions are disposed on the first longitudinal beam, a plurality of second sunroof mounting portions are disposed on the second longitudinal beam, a plurality of the first sunroof mounting portions are disposed close to the first side panel assembly, a plurality of the second sunroof mounting portions are disposed close to the second side panel assembly, a plurality of the first sunroof mounting portions have centers located on a first straight line, and a plurality of the second sunroof mounting portions have centers located on a second straight line; Centers of the plurality of first bolt mounting portions are disposed close to the first straight line, and centers of the plurality of second bolt mounting portions are disposed close to the second straight line.

4. The vehicle body reinforcement structure according to claim 2, wherein The first longitudinal beam is further provided with a plurality of first mounting legs, and the second longitudinal beam is further provided with a plurality of second mounting legs, wherein the plurality of first mounting legs are arranged close to the first side enclosure assembly, and the plurality of second mounting legs are arranged close to the second side enclosure assembly, and the plurality of first mounting legs are used to overlap with the first side enclosure outer panel, and the plurality of second mounting legs are used to overlap with the second side enclosure outer panel; The plurality of first extension plates are staggered with the plurality of first mounting legs, and the plurality of second extension plates are staggered with the plurality of second mounting legs.

5. The vehicle body reinforcement structure according to claim 2, characterized in that, The two ends of the front cross beam of the top cover are screwed together with the first cross beam, and the middle of the front cross beam of the top cover is bonded together with the first cross beam by using structural adhesive; The two ends of the rear cross beam of the top cover are screwed together with the second cross beam, and the middle of the rear cross beam of the top cover is bonded together with the second cross beam by using structural adhesive.

6. The vehicle body reinforcement structure according to any one of claims 1-5, characterized in that, A plurality of first welding avoidance holes are provided on the first roof side beam inner plate, the plurality of first welding avoidance holes are arranged at intervals in the front-rear direction of the vehicle, and the plurality of first welding avoidance holes are used to connect the roof outer plate, the first side panel outer plate and the first roof side beam outer plate by three-layer spot welding; A plurality of second welding avoidance holes are arranged on the second upper side beam inner plate, and the plurality of second welding avoidance holes are arranged at intervals in the front-rear direction of the vehicle, and the plurality of second welding avoidance holes are used to connect the roof outer plate, the second side panel outer plate and the second upper side beam outer plate by three-layer spot welding.

7. A vehicle, characterized in that, include: A sunroof and a vehicle body reinforcement structure as claimed in any one of claims 1 to 6; The sunroof is detachably mounted on the vehicle body reinforcement structure.

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