Cross beam assembly, frame assembly and vehicle

Abstract

The utility model discloses a kind of crossbeam assembly, frame assembly and vehicle. Among them, crossbeam assembly includes suspension installation support, reinforcing bracket and crossbeam body, the front side wall and upper wall surface of the suspension installation support with the crossbeam body are connected, the suspension installation support includes mounting plate, and the mounting plate is used to install suspension;The front side wall and upper wall surface of the reinforcing bracket with the crossbeam body are connected, and the reinforcing bracket is connected with one side in the thickness direction of the mounting plate. The dynamic stiffness of the suspension installation support in the crossbeam assembly of the utility model is higher, after installing suspension, the vibration isolation rate of suspension meets NVH design requirement.

Description

Technical Field

[0001] This utility model relates to the field of vehicle parts technology, and in particular to a crossbeam assembly, a frame assembly, and a vehicle. Background Technology

[0002] In related technologies, the suspension bracket itself lacks sufficient rigidity, resulting in significant vibration and deformation amplitude when the powertrain, such as the motor, is operating. This indicates low dynamic stiffness of the suspension bracket, severely inadequate vibration isolation from the suspension pads, and poor NVH performance (NVH is an abbreviation for Noise, Vibration, and Harshness, and is an important indicator for measuring automotive comfort). Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one objective of this utility model is to propose a crossbeam assembly in which the dynamic stiffness of the suspension mounting bracket is higher, and after the suspension is installed, the vibration isolation rate of the suspension meets the NVH design requirements.

[0004] According to a first aspect of the present invention, a crossbeam assembly includes a crossbeam body, a suspension mounting bracket, and a reinforcing bracket. The suspension mounting bracket is connected to the front side wall and the upper wall of the crossbeam body. The suspension mounting bracket includes a mounting plate for mounting a suspension. The reinforcing bracket is connected to the front side wall and the upper wall of the crossbeam body, and the reinforcing bracket is connected to one side of the mounting plate in the thickness direction.

[0005] According to the crossbeam assembly of this utility model embodiment, by setting a reinforcing bracket on the crossbeam body and connecting the reinforcing bracket to one side of the mounting plate in the thickness direction, a further support is provided for the mounting plate, thereby giving the mounting plate higher dynamic stiffness. After installation and suspension, the vibration isolation rate of the suspension can meet the NVH design requirements. In addition, this utility model does not require modification of the original suspension mounting bracket; a reinforcing bracket can be directly added to the crossbeam body, making the application easier. At the same time, the suspension mounting bracket and the reinforcing bracket are processed separately, reducing the processing difficulty.

[0006] In some embodiments, the crossbeam body is symmetrically provided with two suspension mounting brackets, each suspension mounting bracket including two mounting plates spaced apart in the left-right direction, and two reinforcing brackets are provided, the two reinforcing brackets being symmetrically provided on opposite sides of the two mounting plates and correspondingly connected to the two mounting plates.

[0007] In some embodiments, the reinforcing bracket includes a first flange, a bracket body, and a second flange. The first flange and the second flange are respectively connected to both ends of the bracket body. The first flange is welded to the front side wall of the crossbeam body, and the second flange is welded to the upper wall of the crossbeam body. The bracket body is spaced apart from the crossbeam body.

[0008] In some embodiments, the support body includes a first plate, a second plate, a third plate, and a fourth plate connected in sequence. The second plate and the fourth plate are arranged at intervals in the front-to-back direction, and the third plate and the first plate are arranged at intervals in the up-down direction. The rear edge of the first plate is connected to the first flange, and the lower edge of the fourth plate is connected to the second flange.

[0009] In some embodiments, the first plate, the second plate, the third plate, and the fourth plate are all flat plates with smooth transitions at the joints; and / or, the included angle between the second plate and the third plate is an acute angle.

[0010] In some embodiments, the first plate is disposed near the lower edge of the mounting plate, the second plate is disposed near the front edge of the mounting plate, and the fourth plate is disposed near the rear edge of the mounting plate. The first plate is parallel to the lower edge of the suspension mounting bracket; and / or, the second plate is parallel to the front edge of the suspension mounting bracket; and / or, the fourth plate is parallel to the rear edge of the suspension mounting bracket.

[0011] In some embodiments, the suspension mounting bracket has a flange formed on the edge facing the crossbeam body, the flange being connected to the crossbeam body, and the reinforcing bracket has an avoidance opening for avoiding the flange.

[0012] In some embodiments, the crossbeam assembly further includes a crossbeam connector, the first end of which is connected to one end of the crossbeam body, and the second end of which is used to connect to the longitudinal beam; along the vehicle's front-rear direction, the first end of the crossbeam connector has a dimension of L1, and the second end of the crossbeam connector has a dimension of L2, where L2 > 2 * L1.

[0013] The second aspect of this utility model also proposes a vehicle frame assembly.

[0014] According to a second aspect of the present invention, a frame assembly includes two parallel and spaced longitudinal beams and a crossbeam assembly according to any of the above embodiments, wherein both ends of the crossbeam assembly are respectively connected to the two longitudinal beams.

[0015] Compared with the prior art, the frame assembly of this utility model has the same advantages as the crossbeam assembly of this utility model embodiment, which will not be repeated here.

[0016] The third aspect of this utility model also proposes a vehicle.

[0017] The vehicle according to a third aspect of the present invention includes a frame assembly according to any embodiment of the second aspect of the present invention.

[0018] Compared to the prior art, the advantages of the vehicle of this utility model are the same as those of the frame assembly of the embodiment of this utility model, and will not be repeated here.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the crossbeam assembly according to an embodiment of the present utility model; Figure 2 This is a side view of the suspension mounting bracket and reinforcing bracket in the beam assembly according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the suspension mounting bracket and reinforcing bracket in the crossbeam assembly according to an embodiment of the present utility model; Figure 4 This is a structural schematic diagram of the longitudinal beam and transverse beam connector in an embodiment of the present utility model; Figure 5 This is a top view of the crossbeam connector in the crossbeam assembly according to an embodiment of the present utility model; Figure 6 This is a structural schematic diagram of the crossbeam connector in the crossbeam assembly according to an embodiment of the present utility model; Figure 7 A comparison diagram of the three-dimensional dynamic stiffness of the suspension mounting point of the suspension mounting bracket without reinforcement near the left side of the crossbeam body and the suspension mounting point of the suspension mounting bracket with reinforcement. Figure 8 This is a comparison diagram of the three-dimensional dynamic stiffness of the suspension mounting point of the suspension mounting bracket without reinforcement near the right side of the crossbeam body and the suspension mounting point of the suspension mounting bracket with reinforcement.

[0021] Figure label: Crossbeam assembly 100; 10 crossbeam body; Suspension mounting bracket 20; mounting plate 201; flange 202; mounting hole 203; Reinforced support 30; First flange 301; Support body 302; Second flange 303; First plate 3021; Second plate 3022; Third plate 3023; Fourth plate 3024; Clearance opening 304; 40mm crossbeam connector; First end 401; Second end 402; First crossbeam connecting housing 403; Second crossbeam connecting housing 404; Longitudinal beam 200. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used in the specification of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a specific order or hierarchy.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "attachment," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] In this invention, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this invention, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0026] In the embodiments of this utility model, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this utility model shown in the drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this utility model.

[0027] In this utility model, "multiple" refers to two or more (including two).

[0028] The following is combined with Figures 1 to 6 This invention describes the crossbeam assembly 100, the frame assembly, and the vehicle.

[0029] like Figures 1 to 3 As shown, the crossbeam assembly 100 according to the first aspect of the present invention includes a crossbeam body 10, a suspension mounting bracket 20, and a reinforcing bracket 30. The suspension mounting bracket 20 is connected to the front side wall and the upper wall of the crossbeam body 10. The suspension mounting bracket 20 includes a mounting plate 201 for mounting the suspension. The reinforcing bracket 30 is connected to the front side wall and the upper wall of the crossbeam body 10. The reinforcing bracket 30 is connected to one side of the mounting plate 201 in the thickness direction.

[0030] Specifically, mounting plate 201 is used to mount the suspension, and powertrain components such as motors and engines can be mounted on the suspension.

[0031] For example, the crossbeam body 10 is the structure of the vehicle frame itself. The vehicle frame participates in the overall stress of the vehicle. Compared with ordinary crossbeams, the crossbeam body 10 usually has a larger cross section, uses materials with higher strength, and has higher overall strength. The suspension mounting bracket 20 is installed on the crossbeam body 10, which helps to improve the dynamic stiffness performance of the suspension mounting bracket 20.

[0032] For example, the suspension mounting bracket 20 can be installed on the crossbeam body 10 by welding or screwing.

[0033] The suspension mounting bracket 20 includes a mounting plate 201 for mounting the suspension. In other words, the suspension mounting bracket 20 can be formed by connecting multiple connected plates. Among the multiple plates, the plate for mounting the suspension is formed as the mounting plate 201. The mounting plate 201 can have a mounting structure for mounting the suspension. For example, the mounting structure can be a mounting hole 203 or a snap-fit ​​part.

[0034] For example, the reinforcing bracket 30 and the suspension mounting bracket 20 can be connected by welding.

[0035] According to the embodiment of the present invention, the crossbeam assembly 100 is provided with a reinforcing bracket 30 on the crossbeam body 10. The reinforcing bracket 30 is connected to one side of the mounting plate 201 in the thickness direction to provide further support for the mounting plate 201, thereby making the mounting plate 201 have higher dynamic stiffness. After the suspension is installed, the vibration isolation rate of the suspension can meet the NVH design requirements. In addition, the present invention does not require modification of the original suspension mounting bracket 20. The reinforcing bracket 30 can be directly added to the crossbeam body 10, which makes the application more difficult. At the same time, the suspension mounting bracket 20 and the reinforcing bracket 30 are processed separately, which reduces the processing difficulty.

[0036] For example, each suspension mounting bracket 20 may be provided with one or more reinforcing brackets 30.

[0037] For an embodiment where the crossbeam body 10 has two suspension mounting brackets 20, and each suspension mounting bracket 20 has two reinforcing brackets 30 (for example, see the following embodiment). Figure 1 (You can refer to this.) Figure 7 and Figure 8 , Figure 7 This is a comparison diagram of the three-dimensional dynamic stiffness of the suspension mounting point of the suspension mounting bracket 20 without the reinforcing bracket 30 near the left side of the crossbeam body 10 (related art) and the suspension mounting point of the suspension mounting bracket 20 with the reinforcing bracket 30 (the embodiment of this application). Figure 8 This is a comparison diagram of the three-dimensional dynamic stiffness of the suspension mounting point of the suspension mounting bracket 20 without the reinforcing bracket 30 near the right side of the crossbeam body 10 (related art) and the suspension mounting point of the suspension mounting bracket 20 with the reinforcing bracket 30 (the embodiment of this application).

[0038] exist Figure 7 and Figure 8In the diagram, the blue line represents the three-dimensional flexibility curve of the suspension mounting point of the suspension mounting bracket 20 without the reinforcing bracket 30; the yellow-green line represents the three-dimensional flexibility curve of the suspension mounting point of the suspension mounting bracket 20 with the reinforcing bracket 30 in this embodiment; the red line represents the flexibility curve at a stiffness of 1000 N / mm; the magenta line represents the flexibility curve at a stiffness of 5000 N / mm; and the green line represents the flexibility curve at a stiffness of 10000 N / mm. It should be noted that flexibility and stiffness are reciprocals of each other. As can be seen from the curves, the three-dimensional dynamic stiffness of the suspension mounting point of the suspension mounting bracket 20 with the reinforcing bracket 30 in this embodiment is significantly improved, and almost all of them are below the target flexibility curve of 10000 N / mm, thus meeting the NVH design requirements for the suspension.

[0039] Figure 7 In the first embodiment, the average dynamic stiffness of the suspension mounting point of the suspension mounting bracket 20 without the reinforcing bracket 30 in the x-direction (50Hz-1000Hz) is 7173.53, the average dynamic stiffness in the y-direction (50Hz-1000Hz) is 3929.03, and the average dynamic stiffness in the z-direction (50Hz-1000Hz) is 9801.58. In the second embodiment, the average dynamic stiffness of the suspension mounting bracket 20 with the reinforcing bracket 30 in the x-direction (50Hz-1000Hz) is 31337, the average dynamic stiffness in the y-direction (50Hz-1000Hz) is 19655.6, and the average dynamic stiffness in the z-direction (50Hz-1000Hz) is 33162.5.

[0040] Figure 8 In the first embodiment, the average dynamic stiffness of the suspension mounting point of the suspension mounting bracket 20 without the reinforcing bracket 30 in the x-direction (50Hz-1000Hz) is 7019.13, the average dynamic stiffness in the y-direction (50Hz-1000Hz) is 4876.88, and the average dynamic stiffness in the z-direction (50Hz-1000Hz) is 9732.63. In the second embodiment, the average dynamic stiffness of the suspension mounting bracket 20 with the reinforcing bracket 30 in the x-direction (50Hz-1000Hz) is 35211.2, the average dynamic stiffness in the y-direction (50Hz-1000Hz) is 19110.3, and the average dynamic stiffness in the z-direction (50Hz-1000Hz) is 36204.1.

[0041] Compared to the suspension mounting point of the suspension mounting bracket 20 without the reinforcing bracket 30, the average dynamic stiffness of the suspension mounting bracket 20 with the reinforcing bracket 30 in this embodiment of the application is increased by at least three times in the 50Hz-1000Hz range. The suspension mounting point of the suspension mounting bracket 20 in this embodiment of the application has better dynamic stiffness, and after installation, the vibration isolation rate of the suspension can meet the design requirements.

[0042] According to some embodiments of this utility model, it can be referred to Figure 1The crossbeam body 10 is symmetrically provided with two suspension mounting brackets 20. Each suspension mounting bracket 20 includes two mounting plates 201 arranged spaced apart in the left-right direction. Two reinforcing brackets 30 are provided, symmetrically arranged on opposite sides of the two mounting plates 201 and correspondingly connected to the two mounting plates 201. In other words, one of the two reinforcing brackets 30 is located on one side of the suspension mounting bracket 20, and the other of the two reinforcing brackets 30 is located on the other side of the suspension mounting bracket 20. Both mounting plates 201 on both sides are connected to the reinforcing brackets 30.

[0043] For example, at least a portion of the mounting plate 201 is located above the beam body 10 and is welded to the top wall of the beam body 10, and at least a portion of the mounting plate 201 is located on the front side of the beam body 10 and is welded to the front wall of the beam body 10.

[0044] For example, the mounting plate 201 has a through mounting hole 203, and the suspension can be installed between two mounting plates 201 through the mounting hole 203. The two mounting plates 201 are connected by a connecting plate, which is connected to the top wall of the crossbeam body 10.

[0045] In the above technical solution, each mounting plate 201 is reinforced with a reinforcing bracket 30, which can maximize the dynamic stiffness of the suspension mounting bracket 20 and ensure that the mounting plate 201 has sufficient support without affecting the installation of the suspension.

[0046] According to some embodiments of this utility model, it can be referred to Figures 1 to 3 The reinforcing bracket 30 includes a first flange 301, a bracket body 302, and a second flange 303. The first flange 301 and the second flange 303 are respectively connected to both ends of the bracket body 302. The first flange 301 is welded to the front side wall of the crossbeam body 10, and the second flange 303 is welded to the upper wall of the crossbeam body 10. The bracket body 302 is spaced apart from the crossbeam body 10.

[0047] It should be noted that the powertrain is mounted on the frame assembly via multiple mounts. Among the multiple mounts, the mount closer to the front of the vehicle is the front mount, and the mount closer to the rear of the vehicle is the rear mount. The front mount and the rear mount can be mounted on the frame assembly using different brackets. The mount mounting bracket 20 in this embodiment can be used to mount the rear mount.

[0048] For example, the first flange 301 is welded to the front side wall of the beam body 10, and the second flange 303 is welded to the upper wall of the beam body 10.

[0049] In the above technical solution, the first flange 301 is connected to the front side wall of the crossbeam body 10, the second flange 303 is connected to the upper wall of the crossbeam body 10, and the support body 302 is spaced apart from the crossbeam body 10. On the one hand, the support body 302 can provide support for the mounting plate 201 over a larger area as much as possible, and the reinforcing support 30 also has a large connection area with the crossbeam body 10. The reinforcing support 30 is also easy to arrange on the crossbeam body 10. On the other hand, the reinforcing support 30 has high structural strength and is not easily deformed.

[0050] According to some embodiments of this utility model, it can be referred to Figure 2 and Figure 3 The bracket body 302 includes a first plate 3021, a second plate 3022, a third plate 3023, and a fourth plate 3024 connected in sequence. The second plate 3022 and the fourth plate 3024 are arranged alternately in the front-back direction, and the third plate 3023 and the first plate 3021 are arranged alternately in the up-down direction. The rear edge of the first plate 3021 is connected to the first flange 301, and the lower edge of the fourth plate 3024 is connected to the second flange 303. The edges of the first plate 3021, the second plate 3022, the third plate 3023, and the fourth plate 3024 facing the mounting plate 201 are connected to the mounting plate 201.

[0051] The bracket body 302 adopts the above structure. The overall structure of the bracket body 302 matches the shape of the mounting plate 201 well, and the bracket body 302 will not affect the normal installation of the suspension. The bracket body 302 can provide support for the mounting plate 201 over a larger area, which has a good effect on strengthening the dynamic stiffness of the mounting plate 201 and is conducive to improving the NVH performance of the suspension.

[0052] According to some embodiments of the present invention, the first plate 3021, the second plate 3022, the third plate 3023 and the fourth plate 3024 are all flat plates with smooth transitions at the joints.

[0053] Therefore, the reinforcing bracket 30 can be formed by bending a single flat plate, which is easy to manufacture.

[0054] The first plate 3021, the second plate 3022, the third plate 3023, and the fourth plate 3024 are all flat plates. This allows the angles between adjacent plates to be adjusted to best fit the shape of the mounting plate 201, thereby obtaining the largest possible support area and thus the best possible support effect. At the same time, the reinforcing bracket 30 formed by the first plate 3021, the second plate 3022, the third plate 3023, and the fourth plate 3024, which are all flat plates, is not easily deformed, providing better support for the mounting plate 201 and enhancing the dynamic stiffness of the mounting plate 201.

[0055] According to some embodiments of this utility model, it can be referred to Figure 2 The included angle between the second plate 3022 and the third plate 3023 is an acute angle.

[0056] For example, the included angle between the second plate 3022 and the third plate 3023 is 50°, 60°, 70° or any value between any two values, without specific restrictions.

[0057] Simulation results show that the angle between the second plate 3022 and the third plate 3023 is an acute angle, the reinforcing bracket 30 provides better support for the mounting plate 201, and the mounting plate 201 has higher dynamic stiffness performance.

[0058] According to some embodiments of this utility model, it can be referred to Figure 2 The first plate 3021 is located near the lower edge of the mounting plate 201, the second plate 3022 is located near the front edge of the mounting plate 201, and the fourth plate 3024 is located near the rear edge of the mounting plate 201.

[0059] Here, the first plate 3021 being positioned close to the lower edge of the mounting plate 201 means that the distance between the first plate 3021 and the lower edge of the mounting plate 201 is much smaller than the distance between the first plate 3021 and the upper edge of the mounting plate 201, and the first plate 3021 does not overlap with the lower edge of the mounting plate 201.

[0060] Here, the second plate 3022 being positioned close to the front edge of the mounting plate 201 means that the distance between the second plate 3022 and the front edge of the mounting plate 201 is much smaller than the distance between the second plate 3022 and the rear edge of the mounting plate 201, and the second plate 3022 does not overlap with the front edge of the mounting plate 201.

[0061] Here, the fourth plate 3024 being positioned close to the rear edge of the mounting plate 201 means that the distance between the fourth plate 3024 and the rear edge of the mounting plate 201 is much smaller than the distance between the fourth plate 3024 and the rear edge of the mounting plate 201, and the fourth plate 3024 does not overlap with the rear edge of the mounting plate 201.

[0062] For example, the first plate 3021 is parallel to the lower edge of the suspension mounting bracket 20.

[0063] For example, the second plate 3022 is parallel to the front edge of the suspension mounting bracket 20.

[0064] For example, the fourth plate 3024 is parallel to the rear edge of the suspension mounting bracket 20.

[0065] For example, the first plate 3021 is parallel to the lower edge of the suspension mounting bracket 20, the second plate 3022 is parallel to the front edge of the suspension mounting bracket 20, and the fourth plate 3024 is parallel to the rear edge of the suspension mounting bracket 20.

[0066] Simulation verification shows that the first plate 3021 is positioned near the lower edge of the mounting plate 201 and is parallel to the lower edge of the suspension mounting bracket 20; the second plate 3022 is positioned near the front edge of the mounting plate 201 and is parallel to the front edge of the suspension mounting bracket 20; and the fourth plate 3024 is positioned near the rear edge of the mounting plate 201 and is parallel to the rear edge of the suspension mounting bracket 20. This arrangement enhances the support effect of the reinforcing bracket 30 on the mounting plate 201 and improves the dynamic stiffness performance of the mounting plate 201.

[0067] According to some embodiments of this utility model, it can be referred to Figure 3 The suspension mounting bracket 20 has a flange 202 formed on the edge facing the crossbeam body 10. The flange 202 is connected to the crossbeam body 10. The reinforcing bracket 30 has an avoidance opening 304, which is used to avoid the flange 202.

[0068] In other words, the flange 202 of the suspension mounting bracket 20 is not removed to ensure a good connection between the suspension mounting bracket 20 and the crossbeam body 10. The reinforcing bracket 30 has an avoidance opening 304 to prevent the flange 202 from affecting the installation of the reinforcing bracket 30.

[0069] According to some embodiments of this utility model, it can be referred to Figure 1 , Figures 4 to 6 The crossbeam assembly 100 also includes a crossbeam connector 40. The first end 401 of the crossbeam connector 40 is connected to one end of the crossbeam body 10, and the second end 402 of the crossbeam connector 40 is used to connect to the longitudinal beam 200. Along the front-rear direction of the vehicle, the size of the first end 401 of the crossbeam connector 40 is L1, and the size of the second end 402 of the crossbeam connector 40 is L2, where L2≥2*L1.

[0070] For example, L2=2*L1, L2=2.1*L1, L2=2.2*L1, L2=2.3*L1, L2=2.4*L1, L2=2.5*L1, L2=2.6*L1, L2=2.7*L1, L2=2.8*L1, L2=2.9*L1 or L2=3*L1. No specific restrictions are imposed here, and the design can be carried out according to the requirements in practice.

[0071] Therefore, the connection area between the crossbeam connector 40 and the longitudinal beam 200 is larger, which helps to enhance the connection stability between the crossbeam assembly 100 and the longitudinal beam 200.

[0072] For example, the crossbeam connector 40 includes a first crossbeam connecting housing 403 and a second crossbeam connecting housing 404 that are fastened together. At least a portion of the first crossbeam connecting housing 403 is located above the longitudinal beam 200 to cover a portion of the upper surface of the longitudinal beam 200 and is connected to the upper surface of the longitudinal beam 200. At least a portion of the second crossbeam connecting housing 404 is located below the longitudinal beam 200 to cover a portion of the lower surface of the longitudinal beam 200 and is connected to the lower surface of the longitudinal beam 200.

[0073] The second aspect of this utility model also proposes a vehicle frame assembly.

[0074] The frame assembly according to this utility model embodiment includes two parallel and spaced longitudinal beams 200 and a crossbeam assembly 100 according to the above embodiment, with both ends of the crossbeam assembly 100 connected to the two longitudinal beams 200 respectively.

[0075] Since the frame assembly according to this utility model embodiment includes the crossbeam assembly 100 of the above embodiment, the frame assembly of this utility model embodiment has at least the following advantages: by providing a reinforcing bracket 30 on the crossbeam body 10, and connecting the reinforcing bracket 30 to one side of the mounting plate 201 in the thickness direction, the mounting plate 201 is provided with further support, thereby making the mounting plate 201 have higher dynamic stiffness. After the suspension is installed, the vibration isolation rate of the suspension can meet the NVH design requirements. In addition, this utility model does not require modification of the original suspension mounting bracket 20, and can directly add a reinforcing bracket 30 to the crossbeam body 10, which is easier to apply. At the same time, the suspension mounting bracket 20 and the reinforcing bracket 30 are processed separately, which reduces the processing difficulty.

[0076] The third aspect of this utility model also proposes a vehicle.

[0077] The vehicle according to an embodiment of the present invention includes the frame assembly according to the above embodiment.

[0078] For example, the vehicle can be a commercial vehicle, and the chassis assembly can better meet the needs of commercial vehicles for higher dynamic stiffness and lower NVH performance of the suspension mount bracket 20.

[0079] Since the vehicle according to the present utility model embodiment includes the frame assembly of the above embodiment, the vehicle according to the present utility model embodiment has at least the following advantages: by providing a reinforcing bracket 30 on the crossbeam body 10, and connecting the reinforcing bracket 30 to one side of the mounting plate 201 in the thickness direction, the mounting plate 201 is provided with further support, thereby making the mounting plate 201 have higher dynamic stiffness. After the suspension is installed, the vibration isolation rate of the suspension can meet the NVH design requirements. In addition, the present utility model does not require modification of the original suspension mounting bracket 20, and can directly add a reinforcing bracket 30 to the crossbeam body 10, which is easier to apply. At the same time, the suspension mounting bracket 20 and the reinforcing bracket 30 are processed separately, which reduces the processing difficulty.

[0080] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0081] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A crossbeam assembly, characterized in that, include: The main body of the crossbeam (10); A suspension mounting bracket (20) is connected to the front side wall and the upper wall of the crossbeam body (10). The suspension mounting bracket (20) includes a mounting plate (201) for mounting the suspension. A reinforcing bracket (30) is connected to the front side wall and the upper wall of the crossbeam body (10), and the reinforcing bracket (30) is connected to one side of the mounting plate (201) in the thickness direction.

2. The beam assembly according to claim 1, characterized in that, The crossbeam body (10) is symmetrically provided with two suspension mounting brackets (20), each suspension mounting bracket (20) including two mounting plates (201) arranged spaced apart in the left-right direction. Two reinforcing brackets (30) are provided, and the two reinforcing brackets (30) are symmetrically provided on opposite sides of the two mounting plates (201) and are correspondingly connected to the two mounting plates (201).

3. The beam assembly according to claim 1, characterized in that, The reinforcing bracket (30) includes a first flange (301), a bracket body (302), and a second flange (303). The first flange (301) and the second flange (303) are respectively connected to both ends of the bracket body (302). The first flange (301) is welded to the front side wall of the crossbeam body (10), and the second flange (303) is welded to the upper wall of the crossbeam body (10). The bracket body (302) is spaced apart from the crossbeam body (10).

4. The beam assembly according to claim 3, characterized in that, The main body of the support (302) includes a first plate (3021), a second plate (3022), a third plate (3023), and a fourth plate (3024) connected in sequence. The second plate (3022) and the fourth plate (3024) are arranged alternately in the front-back direction. The third plate (3023) and the first plate (3021) are arranged alternately in the up-down direction. The rear edge of the first plate (3021) is connected to the first flange (301), and the lower edge of the fourth plate (3024) is connected to the second flange (303).

5. The beam assembly according to claim 4, characterized in that, The first plate (3021), the second plate (3022), the third plate (3023) and the fourth plate (3024) are all flat plates with smooth transitions at the joints; and / or, the included angle between the second plate (3022) and the third plate (3023) is an acute angle.

6. The beam assembly according to claim 4, characterized in that, The first plate (3021) is disposed near the lower edge of the mounting plate (201), the second plate (3022) is disposed near the front edge of the mounting plate (201), and the fourth plate (3024) is disposed near the rear edge of the mounting plate (201). The first plate (3021) is parallel to the lower edge of the suspension mounting bracket (20); and / or, the second plate (3022) is parallel to the front edge of the suspension mounting bracket (20); and / or, the fourth plate (3024) is parallel to the rear edge of the suspension mounting bracket (20).

7. The beam assembly according to claim 1, characterized in that, The suspension mounting bracket (20) has a flange (202) formed on the edge facing the crossbeam body (10), the flange (202) is connected to the crossbeam body (10), and the reinforcing bracket (30) has an avoidance opening (304) for avoiding the flange (202).

8. The beam assembly according to any one of claims 1-7, characterized in that, It also includes a crossbeam connector (40), the first end (401) of which is connected to one end of the crossbeam body (10), and the second end (402) of which is used to connect to the longitudinal beam (200); along the front-rear direction of the vehicle, the size of the first end (401) of the crossbeam connector (40) is L1, and the size of the second end (402) of the crossbeam connector (40) is L2, where L2 > 2 * L1.

9. A vehicle frame assembly, characterized in that, It includes two parallel and spaced longitudinal beams (200) and a crossbeam assembly (100) according to any one of claims 1-8, wherein both ends of the crossbeam assembly (100) are respectively connected to the two longitudinal beams (200).

10. A vehicle, characterized in that, Includes the frame assembly according to claim 9.

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