Cross beam assembly, vehicle body structure and vehicle

Abstract

The utility model discloses a cross beam assembly, a vehicle body structure and a vehicle, the cross beam assembly comprises a first cross beam, a second cross beam and a third cross beam, the first cross beam extends in the width direction of the vehicle; the two second cross beams are fixed to the two sides, in the width direction of the vehicle, of the first cross beam, each second cross beam comprises a top plate, a first reinforcing plate and a second reinforcing plate, the first reinforcing plates are clamped between the top plates and the second reinforcing plates, the top plates are fixedly connected with a vehicle body bottom plate, and the second reinforcing plates are clamped between the top plates and the second reinforcing plates. The first reinforcing plate is fixedly connected with the top plate and the second reinforcing plate, and the second reinforcing plate is fixedly connected with the first reinforcing plate and the top plate. The cross beam assembly is composed of the top plate, the first reinforcing plate and the second reinforcing plate, the second cross beam enables stress of the cross beam assembly in the height direction of the vehicle to form a closed force transmission path, and therefore the supporting performance of the cross beam assembly can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle body cross beams, in particular to a cross beam assembly, a vehicle body structure and a vehicle. Background Art

[0002] The seat mounting crossbeam is an important component of the vehicle body floor assembly. It bears the weight of the vehicle body interior and personnel, as well as transmits force in the Y direction of the floor. It is an important load-bearing component of the vehicle body.

[0003] In the related art, the common structure of the seat crossbeam is in the form of 'crossbeam single plate' or 'crossbeam + U-shaped reinforcement plate', which forms a force transmission structure with the central channel. The lateral force state of this type of structure is not ideal and is suitable for small cars, but it is difficult to meet the requirements of medium and large car bodies and increasingly stringent body strength regulations. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a crossbeam assembly, which is composed of a top plate, a first reinforcing plate and a second reinforcing plate, and the second crossbeam is configured so that the force of the crossbeam assembly in the height direction of the vehicle can form a closed force transmission path, thereby effectively improving the support of the crossbeam assembly.

[0005] The utility model also provides a vehicle body structure.

[0006] The utility model further provides a vehicle.

[0007] According to the first aspect of the utility model, the crossbeam assembly includes: a first crossbeam, which extends in the vehicle width direction; two second crossbeams, which are fixed to the first crossbeam on both sides in the vehicle width direction, and the second crossbeam includes: a top plate, a first reinforcing plate and a second reinforcing plate, the first reinforcing plate is clamped between the top plate and the second reinforcing plate, the top plate is fixedly connected to the vehicle body bottom plate, the first reinforcing plate is fixedly connected to the top plate and the second reinforcing plate, and the second reinforcing plate is fixedly connected to the first reinforcing plate and the top plate; and a plurality of first mounting holes are provided on the top plate, a plurality of second mounting holes are provided on the first reinforcing plate, the plurality of first mounting holes and the plurality of second mounting holes correspond one to one, and the first mounting holes and the second mounting holes are used for mounting seats.

[0008] According to the crossbeam assembly of the embodiment of the utility model, by making a top plate, a first reinforcing plate and a second reinforcing plate, the second crossbeam is made so that the force of the crossbeam assembly in the height direction of the vehicle can form a closed force transmission path, thereby effectively improving the support of the crossbeam assembly.

[0009] According to some embodiments of the utility model, the first reinforcing plate includes: a first plate segment, a second plate segment and a third plate segment, the second plate segment is clamped between the first plate segment and the third plate segment, the first plate segment and the second reinforcing plate are fixedly connected, the second plate segment and the second reinforcing plate are fixedly connected, and the third plate segment and the top plate and the second reinforcing plate are fixedly connected.

[0010] According to some embodiments of the present utility model, the second plate segment includes: a first plate portion, a second plate portion and a third plate portion, the second plate portion is clamped between the first plate portion and the third plate portion, the first plate portion is connected to the first plate segment, and the third plate portion is connected to the third plate segment.

[0011] According to some embodiments of the present invention, the first plate portion, the second plate portion and the third plate portion form a groove, and in the height direction of the vehicle, the cross-sectional area of ​​the groove gradually decreases in the direction toward the second plate portion.

[0012] According to some embodiments of the present invention, the second reinforcing plate includes: a bottom plate and two side plates, the two side plates are arranged on both sides of the bottom plate in the length direction of the vehicle and bent upward, the bottom plate and the first reinforcing plate are fixedly connected, and the two side plates and the top plate are fixedly connected.

[0013] According to some embodiments of the utility model, the second reinforcing plate further includes: two first flanges, the first flanges being arranged on a side of the side plate away from the bottom plate, and the first flanges being arranged in a direction away from the side plate, and the first flanges being fixedly connected to the first reinforcing plate.

[0014] According to some embodiments of the utility model, the top plate includes: a fourth plate portion, two fifth plate portions and two second flanges, the two fifth plate portions are arranged on both sides of the fourth plate portion in the length direction of the vehicle, the second flange is arranged on the side of the fifth plate portion away from the fourth plate portion, the fourth plate portion is fixedly connected to the first reinforcing plate, the fifth plate portion is fixedly connected to the second reinforcing plate, and the second flange is fixedly connected to the bottom plate of the vehicle body.

[0015] According to some embodiments of the utility model, the top plate and the first cross beam are fixedly connected, and the first cross beam cover is arranged above the middle channel and a cavity is formed between the first cross beam and the middle channel.

[0016] According to some embodiments of the utility model, a plurality of first mounting holes are provided on the top plate, a plurality of second mounting holes are provided on the first reinforcing plate, the plurality of first mounting holes and the plurality of second mounting holes correspond one to one, and the first mounting holes and the second mounting holes are used for installing the seat.

[0017] The vehicle body structure according to the second aspect of the embodiment of the utility model includes: a vehicle body floor; two longitudinal beams, the two longitudinal beams are arranged above the vehicle body floor and fixedly connected to the vehicle body floor; a cross beam, the cross beam is clamped between the two longitudinal beams, the cross beam is at least one, and the cross beam is the cross beam assembly.

[0018] A vehicle according to an embodiment of the third aspect of the utility model includes the vehicle body structure.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 is a structural schematic diagram of a vehicle body structure according to an embodiment of the utility model;

[0022] Figure 2 is an exploded view of a vehicle body structure according to an embodiment of the utility model;

[0023] Figure 3 is a cross-sectional view of a second crossbeam according to an embodiment of the utility model;

[0024] Figure 4 is a schematic structural diagram of a top plate according to an embodiment of the utility model;

[0025] Figure 5 is a schematic structural diagram of a first reinforcing plate according to an embodiment of the utility model;

[0026] Figure 6 It is a structural schematic diagram of the second reinforcement plate according to an embodiment of the utility model.

[0027] Reference numerals:

[0028] 1000. Body structure;

[0029] 100. Crossbeam assembly;

[0030] 10. First beam;

[0031] 20, second cross beam; 21, top plate; 211, fourth plate portion; 212, fifth plate portion; 213, second flange; 214, first mounting hole; 22, first reinforcing plate; 221, first plate section; 222, second plate section; 223, third plate section; 224, first plate portion; 225, second plate portion; 226, third plate portion; 227, groove; 228, second mounting hole; 23, second reinforcing plate; 231, bottom plate; 232, side plate; 233, first flange;

[0032] 200, center channel; 300, underbody. DETAILED DESCRIPTION

[0033] The embodiments of the present utility model are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present utility model are described in detail below.

[0034] Reference below Figure 1-Figure 6 A cross beam assembly 100 according to an embodiment of the present invention is described. The present invention also provides a vehicle body structure 1000 , and further provides a vehicle.

[0035] like Figure 1 and Figure 2 As shown, the crossbeam assembly 100 according to the embodiment of the utility model includes: a first crossbeam 10 and a second crossbeam 20 .

[0036] The first cross beam 10 extends in the vehicle width direction, and the two second cross beams 20 are fixed to both sides of the first cross beam 10 in the vehicle width direction. In other words, the first cross beam 10 and the two second cross beams 20 are connected to each other, so that the cross beam assembly 100 can be formed into an integrated structure, thereby facilitating the force transmission of the cross beam assembly 100 in the vehicle width direction.

[0037] Furthermore, the second cross beam 20 includes: a top plate 21, a first reinforcing plate 22 and a second reinforcing plate 23, the first reinforcing plate 22 is sandwiched between the top plate 21 and the second reinforcing plate 23, the top plate 21 is fixedly connected to the vehicle body bottom plate 300, the first reinforcing plate 22 is fixedly connected to the top plate 21 and the second reinforcing plate 23, and the second reinforcing plate 23 is fixedly connected to the first reinforcing plate 22 and the top plate 21. That is, the second cross beam 20 is composed of the top plate 21, the first reinforcing plate 22 and the second reinforcing plate 23, which are connected to each other, thereby replacing the traditional single-piece or U-shaped reinforcing plate, so that the force of the cross beam assembly 100 in the height direction of the vehicle can form a closed force transmission path, thereby effectively improving the support of the cross beam assembly 100.

[0038] Thus, by forming the top plate 21, the first reinforcement plate 22, and the second reinforcement plate 23, the second crossbeam 20 enables the force acting on the crossbeam assembly 100 in the vehicle height direction to form a closed force transmission path, thereby effectively improving the support performance of the crossbeam assembly 100.

[0039] Among them, as Figure 4 shown, the first reinforcement plate 22 includes: a first plate section 221, a second plate section 222, and a third plate section 223. The second plate section 222 is clamped between the first plate section 221 and the third plate section 223. The first plate section 221 is fixedly connected to the second reinforcement plate 23, the second plate section 222 is fixedly connected to the second reinforcement plate 23, and the third plate section 223 is fixedly connected to the top plate 21 and the second reinforcement plate 23. In this way, the first reinforcement plate 22 is divided into the first plate section 221, the second plate section 222, and the third plate section 223. And the first reinforcement plate 22 can be connected to the second reinforcement plate 23 through the first plate section 221 and the second plate section 222, and the first reinforcement plate 22 can also be connected to the top plate 21 and the second reinforcement plate 23 through the third plate section 223. That is, the first reinforcement plate 22 is fixed between the top plate 21 and the second reinforcement plate 23. Through the first reinforcement plate 22, it is convenient for the second crossbeam 20 to transmit the force acting in the vehicle height direction.

[0040] As Figure 4 shown, the second plate section 222 includes: a first plate portion 224, a second plate portion 225, and a third plate portion 226. The second plate portion 225 is clamped between the first plate portion 224 and the third plate portion 226. The first plate portion 224 is connected to the first plate section 221, and the third plate portion 226 is connected to the third plate section 223. That is, the second plate section 222 is composed of the first plate portion 224, the second plate portion 225, and the third plate portion 226, so that the second plate section 222 and the top plate 21 as well as the second reinforcement plate 23 can form an 'eye' - shaped stable structure in the cross - section, enabling the force acting on the second crossbeam 20 in the vehicle height direction to form a closed force transmission path, thereby effectively improving the support performance of the second crossbeam 20.

[0041] Furthermore, the first plate portion 224, the second plate portion 225, and the third plate portion 226 form a groove 227, and in the vehicle height direction, the cross - sectional area of the groove 227 gradually decreases in the direction towards the second plate portion 225. That is, the second plate section 222 can be formed with a groove 227. The groove 227 can realize the fixed connection between the first reinforcement plate 22 and the second reinforcement plate 23, and at the same time, the groove 227 can also facilitate the force transmission of the second plate section 222.

[0042] Furthermore, the cross-sectional area of ​​the groove 227 gradually decreases in the direction toward the second plate portion 225. Such a configuration can effectively improve the support of the second crossbeam 20, and when the second crossbeam 20 is subjected to force, the first plate portion 224 and the third plate portion 226 of the second plate segment 222 can be separated from each other, and because the first plate portion 224 and the third plate portion 226 are respectively connected to the first plate segment 221 and the third plate segment 223, the force can be transmitted to the first top plate 21 and the second reinforcing plate 23.

[0043] like Figure 5 As shown, the second reinforcing plate 23 includes: a bottom plate 231 and two side plates 232, the two side plates 232 are arranged on both sides of the bottom plate 231 in the vehicle length direction and are bent upward, the bottom plate 231 is fixedly connected to the first reinforcing plate 22, and the two side plates 232 are fixedly connected to the top plate 21. In other words, the second reinforcing plate 23 is composed of the bottom plate 231 and the two side plates 232, wherein the bottom plate 231 can be fixedly connected to the second plate portion 225, and the side plates 232 can be fixedly connected to the top plate 21, that is, the second reinforcing plate 23 can realize an integrated structure of the top plate 21, the first reinforcing plate 22 and the second reinforcing plate 23.

[0044] like Figure 5 As shown, the second reinforcing plate 23 further includes: two first flanges 233, the first flanges 233 are arranged on the side of the side plate 232 away from the bottom plate 231, and the first flanges 233 are arranged in a direction away from the side plate 232, and the first flanges 233 are fixedly connected to the first reinforcing plate 22. In this way, by arranging the first flanges 233 on the second reinforcing plate 23, the second reinforcing plate 23 and the first reinforcing plate 22 can be further connected through the first flanges 233, so that the connection stability of the first reinforcing plate 22 and the second reinforcing plate 23 can be improved, and then the support of the second cross beam 20 can be effectively improved.

[0045] The first flange 233 and the first reinforcing plate 22 may be fixedly connected by welding.

[0046] like Figure 6As shown, the top plate 21 includes: a fourth plate portion 211, two fifth plate portions 212 and two second flanges 213, the two fifth plate portions 212 are arranged on both sides of the fourth plate portion 211 in the length direction of the vehicle, the second flange 213 is arranged on the side of the fifth plate portion 212 away from the fourth plate portion 211, the fourth plate portion 211 is fixedly connected to the first reinforcing plate 22, the fifth plate portion 212 is fixedly connected to the second reinforcing plate 23, and the second flange 213 is fixedly connected to the vehicle body bottom plate 300. That is, the top plate 21 is composed of a fourth plate portion 211, a fifth plate portion 212 and a second flange 213, wherein the fourth plate portion 211 can be fixedly connected to the third plate segment 223, the fifth plate portion 212 can be fixedly connected to the side plate 232, and the second flange 213 can be fixedly connected to the vehicle body bottom plate 300, so that the first reinforcing plate 22 and the second reinforcing plate 23 can be connected to each other through the top plate 21, and the first reinforcing plate 22 and the second reinforcing plate 23 can be fixed to the vehicle body bottom plate 300 through the top plate 21.

[0047] In addition, the top plate 21 is fixedly connected to the first cross beam 10. That is, the first cross beam 10 and the second cross beam 20 are fixedly connected by welding the top plate 21 and the first cross beam 10. The first cross beam 10 and the second cross beam 20 are connected by a through-type integrated welded plate.

[0048] like Figure 1 As shown, the first cross beam 10 is disposed above the middle channel 200 and a cavity is formed between the first cross beam 10 and the middle channel 200. That is, the two second cross beams 20 are connected through the first cross beam 10, not through the middle channel 200, so that the first cross beam 10 and the two second cross beams 20 are an integrated structure, thereby facilitating the force transmission of the cross beam assembly 100 in the width direction of the vehicle.

[0049] Furthermore, a cavity is provided between the first cross beam 10 and the middle channel 200, so that the connection strength between the first cross beam 10 and the second cross beam 20 can be improved, and when the first cross beam 10 is subjected to force in the height direction of the vehicle, the first cross beam 10 will not transfer the force to the middle channel 200, but will transfer the force to the second cross beam 20, thereby facilitating the transmission of force and avoiding damage to the middle channel 200.

[0050] Reference Figure 4 and Figure 5As shown, the top plate 21 is provided with a plurality of first mounting holes 214, and the first reinforcing plate 22 is provided with a plurality of second mounting holes 228, and the plurality of first mounting holes 214 and the plurality of second mounting holes 228 correspond to each other, and the first mounting holes 214 and the second mounting holes 228 are used to install the seat. That is, by providing the first mounting holes 214 on the top plate 21 and the second mounting holes 228 on the first reinforcing plate 22, the fasteners are fastened after passing through the seat, the first mounting holes 214, and the second mounting holes 228, so that the seat and the cross beam assembly 100 can be fixedly connected.

[0051] Furthermore, there may be a plurality of the first mounting hole 214 and the second mounting hole 228 , which can improve the fixing strength of the seat and beam assembly 100 .

[0052] The seat is fixedly connected to the top plate 21 and the first reinforcing plate 22 via fasteners, so that the connection strength between the seat and the crossbeam assembly 100 can be improved.

[0053] In addition, a groove is provided on the top plate 21 , the groove extends toward the first reinforcing plate 22 , and a first mounting hole 214 is provided on the groove.

[0054] The vehicle body structure 1000 according to the second embodiment of the utility model comprises: a vehicle body floor 300, two longitudinal beams and a cross beam, the two longitudinal beams are arranged above the vehicle body floor 300 and are fixedly connected to the vehicle body floor 300, and the cross beam is sandwiched between the two longitudinal beams, and there is at least one cross beam. That is, the two longitudinal beams and the cross beam are both arranged on the vehicle body floor 300, and the vehicle body floor 300 is provided with a middle channel 200, and the cross beam is arranged above the middle channel 200, so that the cross beam is formed as one body, that is, the cross beam is not connected through the middle channel 200, so that the force transmission of the cross beam in the width direction of the vehicle is more convenient.

[0055] The crossbeam is the crossbeam assembly 100 mentioned above.

[0056] Furthermore, the cross beam and the longitudinal beam are directly connected, so that in the width direction of the vehicle, the force of the longitudinal beam on one side can be directly transmitted to the longitudinal beam on the other side through the cross beam, thereby making it more convenient to transmit the force of the body structure 1000 in the width direction of the vehicle.

[0057] A vehicle according to an embodiment of the third aspect of the utility model includes a vehicle body structure 1000 .

[0058] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0059] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0060] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A crossbeam assembly, characterized in that: include: a first cross member extending in a vehicle width direction; two second cross beams, the two second cross beams are fixed to both sides of the first cross beam in the vehicle width direction, the second cross beam comprises: a top plate, a first reinforcing plate and a second reinforcing plate, the first reinforcing plate is sandwiched between the top plate and the second reinforcing plate, the top plate is fixedly connected to the vehicle body bottom plate, the first reinforcing plate is fixedly connected to the top plate and the second reinforcing plate, and the second reinforcing plate is fixedly connected to the first reinforcing plate and the top plate; and, The top plate is provided with a plurality of first mounting holes, the first reinforcing plate is provided with a plurality of second mounting holes, the plurality of first mounting holes and the plurality of second mounting holes correspond one to one, and the first mounting holes and the second mounting holes are used for mounting seats.

2. The crossbeam assembly according to claim 1, characterized in that: The first reinforcing plate includes: a first plate segment, a second plate segment and a third plate segment, the second plate segment is clamped between the first plate segment and the third plate segment, the first plate segment and the second reinforcing plate are fixedly connected, the second plate segment and the second reinforcing plate are fixedly connected, and the third plate segment and the top plate and the second reinforcing plate are fixedly connected.

3. The crossbeam assembly according to claim 2, characterized in that: The second plate segment includes: a first plate portion, a second plate portion and a third plate portion, the second plate portion is sandwiched between the first plate portion and the third plate portion, the first plate portion is connected to the first plate segment, and the third plate portion is connected to the third plate segment.

4. The crossbeam assembly according to claim 3, characterized in that: The first plate portion, the second plate portion, and the third plate portion constitute a groove, and in the height direction of the vehicle, a cross-sectional area of ​​the groove gradually decreases in a direction toward the second plate portion.

5. The crossbeam assembly according to claim 1, characterized in that: The second reinforcing plate includes: a bottom plate and two side plates, the two side plates are arranged on both sides of the bottom plate in the vehicle length direction and bent upward, the bottom plate is fixedly connected to the first reinforcing plate, and the two side plates are fixedly connected to the top plate.

6. The crossbeam assembly according to claim 5, characterized in that: The second reinforcing plate further includes: two first flanges, the first flanges are arranged on a side of the side plate away from the bottom plate, and the first flanges are arranged in a direction away from the side plate, and the first flanges are fixedly connected to the first reinforcing plate.

7. The crossbeam assembly according to claim 1, characterized in that: The top plate includes: a fourth plate portion, two fifth plate portions and two second flanges, the two fifth plate portions are arranged on both sides of the fourth plate portion in the length direction of the vehicle, the second flange is arranged on a side of the fifth plate portion away from the fourth plate portion, the fourth plate portion is fixedly connected to the first reinforcing plate, the fifth plate portion is fixedly connected to the second reinforcing plate, and the second flange is fixedly connected to the vehicle body bottom plate.

8. The crossbeam assembly according to claim 1, characterized in that: The top plate is fixedly connected to the first cross beam, and the first cross beam cover is arranged above the middle channel and a cavity is formed between the first cross beam cover and the middle channel.

9. A vehicle body structure, characterized in that: include: underbody; Two longitudinal beams, the two longitudinal beams are arranged above the vehicle body bottom plate and are fixedly connected to the vehicle body bottom plate; A crossbeam, wherein the crossbeam is sandwiched between the two longitudinal beams, and there is at least one crossbeam, and the crossbeam is a crossbeam assembly as described in any one of claims 1-8.

10. A vehicle, characterized in that: It comprises the vehicle body structure as claimed in claim 9.

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