Vehicle body top structure and vehicle

Abstract

The utility model provides a vehicle body top structure and a vehicle. The vehicle body top structure comprises a top cover cross beam and a damping structure arranged at the bottom of the top cover cross beam. The damping structure comprises an installation support and a damping assembly, the installation support is connected with the top cover cross beam, the damping assembly comprises a plurality of mass plates which are connected in a stacked mode, and one mass plate is connected with the installation support. According to the car body top structure, the shock absorption structure comprises the installation support and the weight reduction assembly, the shock absorption structure can be conveniently installed on the top cover cross beam through the installation support, good installation strength can be achieved, and vibration can be reduced; meanwhile, the damping assembly comprises the multiple mass plates which are connected in a stacked mode, and compared with a mass block structure, the damping assembly can be conveniently arranged in a small space, the machining cost can be reduced, and meanwhile noise generated by vibration of the vehicle body top structure can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a vehicle body top structure. Meanwhile, the utility model also relates to a vehicle with the vehicle body top structure. Background Art

[0002] In order to improve the strength of the top structure of the vehicle body, a roof crossbeam is usually provided, and the roof crossbeam is easily stimulated by the powertrain and vibrates, generating noise. In order to reduce the noise generated by the vibration of the top of the vehicle body, a structure is usually adopted in which a shock-absorbing counterweight is added to the roof crossbeam, and the shock-absorbing counterweight is mainly fixed to the roof crossbeam by welding or bolting. However, due to factors such as shape, process, and cost, the mass block cannot be arranged, and in order to meet the structural requirements of the mass block, a special process is required, which makes the molding difficult and the cost extremely high. Utility Model Content

[0003] In view of this, the utility model aims to provide a vehicle body top structure to reduce the noise generated by vibration and facilitate the arrangement of the shock absorbing structure.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] A vehicle body top structure comprises a roof crossbeam and a shock absorbing structure arranged at the bottom of the roof crossbeam;

[0006] The shock absorbing structure comprises a mounting bracket and a shock absorbing assembly, wherein the mounting bracket is connected to the top cover cross beam, and the shock absorbing assembly comprises a plurality of stacked and connected mass plates, and one of the mass plates is connected to the mounting bracket.

[0007] Furthermore, the mounting bracket is formed by bending a plate, and the mounting bracket includes a main body portion protruding toward a side away from the top cover cross beam, and an outer flange provided at an edge of the main body portion;

[0008] The mass plate is connected to the main body, and the outer flange is connected to the top cover crossbeam.

[0009] Further, the mounting bracket includes a first bracket and a second bracket spaced apart from the first bracket, and the first bracket and the second bracket both include the main body portion and the outer flange;

[0010] In the left-right direction of the vehicle, the first bracket is close to the middle of the shock absorbing assembly, and the second bracket is close to the end of the shock absorbing assembly.

[0011] Furthermore, the main body of the first bracket has a recessed portion, and the recessed portion is recessed toward one side of the top cover cross beam.

[0012] Furthermore, the shock absorption assembly includes a first mass plate, a second mass plate, and a third mass plate that are stacked and connected in sequence;

[0013] The first mass plate is connected to the mounting bracket, and the thickness of the second mass plate is less than the thicknesses of the first mass plate and the third mass plate.

[0014] Furthermore, the thickness of the plate body constituting the mounting bracket is less than the thickness of the first mass plate; and / or,

[0015] The thickness of the first mass plate is the same as the thickness of the third mass plate.

[0016] Furthermore, the projection of the second mass plate on the roof crossbeam is located within the projection of the first mass plate on the roof crossbeam; and / or,

[0017] The projection of the third mass plate on the roof crossbeam is located within the projection of the second mass plate on the roof crossbeam.

[0018] Furthermore, the third mass plate is provided with avoidance holes and / or avoidance grooves, and the second mass plate is welded to the first mass plate through the avoidance holes and / or avoidance grooves.

[0019] Furthermore, the roof crossbeam includes a crossbeam upper plate and a crossbeam lower plate that are snap-connected, and the cross-section of the crossbeam lower plate is in a "Ji" shape and has a main board portion protruding upward;

[0020] The shock absorption structure is provided at the bottom of the crossbeam lower plate and is connected to the middle of the main board portion along the left-right direction of the vehicle.

[0021] Compared with the prior art, the present utility model has the following advantages:

[0022] For the vehicle body top structure of the present utility model, by making the shock absorption structure include a mounting bracket and a weight reduction component, it is convenient to install the shock absorption structure on the roof crossbeam through the mounting bracket, and it can have good installation strength and reduce vibration; at the same time, the shock absorption assembly includes a plurality of mass plates stacked and connected. Compared with the structure of a mass block, it is not only convenient to arrange the shock absorption assembly in a place with a small space, but also can reduce the processing cost, and can effectively reduce the noise generated by the vibration of the vehicle body top structure.

[0023] In addition, the mounting bracket is formed by bending a plate body and has a main body portion and an outwardly turned edge. The structure is simple, facilitating processing and manufacturing, and at the same time, the mounting bracket can also have good structural strength. The mounting bracket includes a first bracket and a second bracket arranged at an interval from the first bracket, which can improve the mounting stability of the shock absorption assembly on the roof crossbeam. By providing a recess on the main body portion of the first bracket, the structural strength of the main body portion can be improved, thereby improving the mounting strength of the shock absorption assembly, which is beneficial to reducing the vibration of the vehicle body top structure.

[0024] Secondly, the first mass plate, the second mass plate, and the third mass plate are sequentially stacked and connected, and the thickness of the second mass plate is less than that of the first mass plate and the third mass plate, which is convenient for connecting the second mass plate to the first mass plate and the third mass plate. The projection of the second mass plate on the roof crossbeam is located within the projection of the second mass plate on the roof crossbeam, and the projection of the third mass plate on the roof crossbeam is located within the projection of the second mass plate on the roof crossbeam, which can facilitate the arrangement of the shock absorption structure in the narrow space at the top of the vehicle body.

[0025] In addition, the third mass plate is provided with avoidance holes and / or avoidance grooves, which is convenient for connecting the second mass plate to the first mass plate at this position. The roof crossbeam includes a beam upper plate and a beam lower plate that are snap-connected, and the cross-section of the beam lower plate is in a "ji" shape, which can make the beam lower plate have good structural strength, thereby improving the mounting strength of the shock absorption structure and being beneficial to reducing the vibration and generated noise of the vehicle body top structure.

[0026] Another object of the present invention is to provide a vehicle, on which the vehicle body top structure described above is provided.

[0027] The vehicle and the above-mentioned vehicle body top structure according to the present invention have the same beneficial effects as those of the prior art, and will not be elaborated here. Description of the Drawings

[0028] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0029] Figure 1 is an assembly drawing of the roof crossbeam and the shock absorption structure according to the embodiment of the present invention;

[0030] Figure 2 is a structural schematic diagram of the shock absorption structure according to the embodiment of the present invention;

[0031] Figure 3 is a structural schematic diagram of the beam lower plate according to the embodiment of the present invention;

[0032] Figure 4 This is a schematic structural diagram of the first bracket according to an embodiment of the utility model;

[0033] Figure 5 This is a schematic diagram of the structure of the second bracket according to an embodiment of the utility model;

[0034] Figure 6 This is a schematic structural diagram of the second mass plate according to an embodiment of the utility model;

[0035] Figure 7 It is a schematic structural diagram of the first mass plate described in an embodiment of the utility model.

[0036] Description of reference numerals:

[0037] 1. Top cover crossbeam; 2. First mass plate; 3. Second mass plate; 4. Third mass plate; 5. First bracket; 6. Second bracket;

[0038] 101, upper crossbeam plate; 102, lower crossbeam plate; 1021, main board part;

[0039] 201, positioning hole; 202, second alignment hole; 203, fourth positioning hole; 204, positioning matching hole;

[0040] 301, second positioning hole; 302, first alignment hole; 303, positioning notch; 304, third positioning hole;

[0041] 401, first positioning hole; 402, avoidance groove; 403, avoidance hole;

[0042] 501, first main body portion; 5011, recessed portion; 502, first outer flange;

[0043] 601. Second main body portion; 602. Second outer flange. DETAILED DESCRIPTION

[0044] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0045] In the description of the present utility model, it should be noted that the directional words such as "up, down, left, right, front, and back" used in the present embodiment are defined based on the up-down direction, left-right direction, and front-back direction of the automobile. Among them, the up-down direction of the automobile is also the height direction of the automobile (Z direction), the front-back direction of the automobile is also the length direction of the automobile (X direction), and the left-right direction of the automobile is also the width direction of the automobile (Y direction). In addition, the terms "first" and "second" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0046] In addition, in the description of the present utility model, unless otherwise clearly defined, the terms "installation", "connection", "linkage", and "connector" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood in combination with specific circumstances.

[0047] The present utility model will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0048] This embodiment relates to a body top structure, including a roof cross member 1 and a shock absorption structure provided at the bottom of the roof cross member 1. Among them, the shock absorption structure includes a mounting bracket and a shock absorption component. The mounting bracket is connected to the roof cross member 1, and the shock absorption component includes a plurality of mass plates stacked and connected, and one of the mass plates is connected to the mounting bracket.

[0049] In the body top structure of this embodiment, by making the shock absorption structure include a mounting bracket and a weight reduction component, it is convenient to install the shock absorption structure on the roof cross member 1 through the mounting bracket, and it can have good installation strength and reduce vibration. At the same time, the shock absorption component includes a plurality of mass plates stacked and connected. Compared with the structure of a mass block, it is not only convenient to arrange the shock absorption component in a small space, but also can reduce the processing cost, and can effectively reduce the noise generated by the vibration of the body top structure.

[0050] Based on the above overall introduction, an exemplary structure of the body top structure of this embodiment is referred to Figure 1 and Figure 2 as shown in. Among them, as a preferred implementation manner, the roof cross member 1 of this embodiment includes a cross member upper plate 101 and a cross member lower plate 102 that are snap-connected, and a cavity is formed between the two. And, as Figure 3 shown in, the cross section of the cross member lower plate 102 is in a "ji" shape and has a main board portion 1021 protruding upward. The shock absorption structure is specifically provided at the bottom of the cross member lower plate 102 and is connected to the middle of the main board portion 1021 along the left-right direction of the vehicle. Since the thickness of the cavity formed inside the roof cross member 1 is generally small, in this embodiment, the shock absorption structure is provided at the bottom of the cross member lower plate 102, which is convenient for its arrangement. Of course, in specific implementation, the shock absorption structure can also be provided in the cavity according to design requirements and connected to the cross member lower plate 102 or the cross member upper plate 101.

[0051] In this embodiment, by setting the cross-section of the lower beam plate 102 in a "ji" shape, the lower beam plate 102 can have better structural strength. At the same time, it is also convenient for the lower beam plate 102 to be buckled and connected with the upper beam plate 101, and a cavity is formed by enclosing. Thus, the top cover cross beam 1 can have better structural strength, thereby improving the installation strength of the shock absorption structure and facilitating the reduction of the vibration and generated noise of the vehicle body top structure. Of course, in addition to being set in a "ji" shape, the cross-section of the lower beam plate 102 can also be set in other shapes according to design requirements.

[0052] As a preferred implementation form, the mounting bracket is formed by bending a plate body, and the mounting bracket includes a main body portion protruding away from the top cover cross beam 1 and an outward turning edge provided at the edge of the main body portion. And, one mass plate is connected to the main body portion, and the outward turning edge is connected to the top cover cross beam 1. The mounting bracket of this embodiment is formed by bending a plate body and has a main body portion and an outward turning edge, with a simple structure, convenient for processing and manufacturing, and at the same time, the mounting bracket can also have better structural strength.

[0053] Among them, in combination with Figure 1 and Figure 2 shown in, as a preferred embodiment, the mounting bracket of this embodiment includes a first bracket 5 and a second bracket 6 arranged at intervals with the first bracket 5, and both the first bracket 5 and the second bracket 6 are provided with the above-mentioned main body portion and outward turning edge. And, in the left-right direction of the whole vehicle, the first bracket 5 is close to the middle of the shock absorption component, and the second bracket 6 is arranged close to the end of the shock absorption component. By simultaneously setting the first bracket 5 and the second bracket 6, the installation firmness of the shock absorption component can be improved. Moreover, as a preferred implementation manner, the first bracket 5 and the second bracket 6 in this embodiment are respectively two arranged opposite to each other left and right.

[0054] Moreover, for easy understanding, in combination with Figure 5 and Figure 6 shown in, here the main body portion on the first bracket 5 is called the "first main body portion 501", and the outward turning edge on the first bracket 5 is called the "first outward turning edge 502". And the main body portion on the second bracket 6 is called the "second main body portion 601", and the outward turning edge on the second bracket 6 is called the "second outward turning edge 602". In addition, to further improve the structural strength of the first bracket 5 and the second bracket 6, as Figure 5 shown in, first outward turning edges 502 are provided on both opposite sides of the first bracket 5. At the same time, as Figure 6 shown in, second outward turning edges 602 are provided on both opposite sides of the second bracket 6.

[0055] In addition, in order to further improve the structural strength of the mounting bracket, the first main body portion 501 of the first bracket 5 has a recessed portion 5011, and the recessed portion 5011 is recessed toward one side of the roof cross beam 1. In this embodiment, by providing the recessed portion 5011 on the first main body portion 501 of the first bracket 5, the structural strength of the first main body portion 501 can be improved, thereby improving the mounting strength of the shock absorbing assembly, which is beneficial to reducing the vibration of the top structure of the vehicle body.

[0056] In addition, as a preferred embodiment, Figure 4 , Figure 5 and Figure 2 As shown in , the width of the first bracket 5 in the left-right direction of the vehicle is greater than the width of the second bracket 6, so as to ensure the installation strength while facilitating lightweight design. Among them, as a preferred embodiment, the first main body part 501 of the first bracket 5 has a recessed portion 5011, while the width of the second bracket 6 is smaller and no recessed structure is provided. Of course, a recessed structure can also be provided according to design requirements. In addition, in order to improve the connection efficiency of each bracket and the shock absorbing assembly, bracket positioning holes are provided on the first bracket 5 and the second bracket 6 to position the first mass plate 2 described below.

[0057] Continue to refer to Figure 1 and Figure 2 As shown in , as a preferred embodiment, the shock absorbing assembly of this embodiment includes a first mass plate 2, a second mass plate 3 and a third mass plate 4 which are stacked and connected in sequence. Moreover, the first mass plate 2 is connected to the mounting bracket, and also to the first bracket 5 and the second bracket 6, and the thickness of the second mass plate 3 is less than the thickness of the first mass plate 2 and the third mass plate 4. Such a design can facilitate the connection of the second mass plate 3 with the first mass and the third mass plate 4. As a further embodiment, the thickness of the plate body constituting the mounting bracket, that is, the thickness of the plate body of the first bracket 5 and the second bracket 6 is less than the thickness of the first mass plate 2, and the thickness of the first mass plate 2 is the same as the thickness of the third mass plate 4. Among them, in a specific implementation, the thickness of the plate body and the second mass plate 3 can be set to 2mm, and the thickness of the first mass plate 2 and the second mass plate 3 can be set to 3mm, so as to facilitate processing and manufacturing while being able to better meet the shock absorbing effect.

[0058] Here, it should be noted that the relationship between the thickness of the plate body and the thickness of the first mass plate 2, as well as the thickness relationship between the mass plates, can be adjusted accordingly according to design requirements. In addition, in addition to the above three mass plates, the shock absorbing assembly can also include two, four or other numbers of mass plates stacked and connected.

[0059] like Figure 1 and Figure 2As shown in , as a preferred embodiment, the width of each mass plate at both ends in the length direction is smaller than the width of the middle part, so as to facilitate the arrangement of the shock absorbing assembly in a small space. Figure 1 and Figure 2 As shown in , the projection of the second mass plate 3 on the roof cross beam 1 is located within the projection of the first mass plate 2 on the roof cross beam 1. At the same time, the projection of the third mass plate 4 on the roof cross beam 1 is located within the projection of the second mass plate 3 on the roof cross beam 1. With such an arrangement, the cross-sectional area of ​​the shock absorbing assembly can be gradually reduced in the direction away from the roof cross beam 1, so as to further facilitate its arrangement in a narrow space.

[0060] Here, it should be mentioned that this structure is only used as a preferred implementation, and the projection of each mass plate on part of the second mass plate 3 on the top cover beam 1 can also be located outside the projection of the first mass plate 2 on the top cover beam 1. Alternatively, the projection of part of the third mass plate 4 on the top cover beam 1 can be located outside the projection of the second mass plate 3 on the top cover beam 1.

[0061] Specifically, as a preferred embodiment, the structure of the third mass plate 4 of this embodiment is as follows: Figure 2 As shown in , it is in the shape of a long strip extending in the left-right direction of the vehicle, and an avoidance hole 403 and an avoidance groove 402 are provided on the third mass plate 4. The second mass plate 3 is welded and connected to the first mass plate 2 through the avoidance hole 403 and the avoidance groove 402. At the same time, the setting of the avoidance groove 402 can also be used to achieve rough positioning with the second mass plate 3. Among them, as a specific embodiment, there are four avoidance holes 403 spaced apart along the length direction of the third mass plate 4, and there is one avoidance groove 402. Of course, the number of avoidance holes 403 and avoidance groove 402 can be adjusted accordingly according to design requirements, and even only avoidance holes 403 or only avoidance groove 402 can be provided. In addition, in order to facilitate the connection between the third mass plate 4 and the second mass plate 3, as Figure 2 As shown in FIG, a first positioning hole 401 is respectively provided at two ends of the third mass plate 4 .

[0062] The structure of the second mass plate 3 of this embodiment refers to Figure 6 and Figure 2 As shown in FIG. 1 , two second positioning holes 301 are provided on the second mass plate 3 corresponding to the first positioning holes 401. At the same time, a positioning notch 303 is provided in the middle of the length direction of the second mass plate 3 to achieve rough positioning with the first mass plate 2. Three first alignment holes 302 are also provided on the second mass plate 3 to cooperate with the positioning notch 303 to achieve rough positioning with the third mass plate 4. In addition, continue to refer to Figure 6 and Figure 2As shown in FIG, third positioning holes 304 are respectively provided at two ends of the second mass plate 3 in the length direction for precise positioning with the first mass plate 2 .

[0063] The structure of the first mass plate 2 is shown in FIG. Figure 7 and Figure 1 As shown in , a positioning hole 201 corresponding to the positioning notch 303 and a second alignment hole 202 corresponding to the first alignment hole 302 are provided on the first mass plate 2 to achieve rough positioning between the first mass plate 2 and the second mass plate 3. In addition, a fourth positioning hole 203 is provided on the first mass plate 2 corresponding to the third positioning hole 304 to achieve fine positioning between the first mass plate 2 and the second mass plate 3. In addition, in order to facilitate the connection between the first mass plate 2 and the above-mentioned brackets, positioning matching holes 204 corresponding to the positioning holes of the above-mentioned brackets are also provided on the third mass plate 4 to perform positioning when the two are connected.

[0064] In the specific implementation, the first mass plate 2 can be welded to the first bracket 5 and the second bracket 6 first, and then the second mass plate 3 and the third mass plate 4 can be welded together, and then the whole can be welded together to the first mass plate 2, and finally the shock absorbing structure can be welded together to the lower plate 102 of the cross beam. Compared with the screw connection method, the molding and connection process can be simplified, the cost can be reduced, and the setting of the above-mentioned positioning holes can reduce the risk of abnormal noise caused by relative displacement.

[0065] The vehicle body top structure of this embodiment can make up for the defect that the mass block cannot be arranged due to insufficient modeling space, and compared with casting or milling, the method of welding multiple mass plates is adopted, which can achieve cost reduction, efficiency improvement and reduce the risk of abnormal noise.

[0066] In addition, the present embodiment also relates to a vehicle, on which the vehicle body top structure as described above is provided.

[0067] The vehicle of this embodiment has the same beneficial effects as the above-mentioned vehicle body top structure relative to the prior art, which will not be described in detail here.

[0068] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vehicle body top structure, characterized in that: It comprises a top cover cross beam (1), and a shock absorbing structure arranged at the bottom of the top cover cross beam (1); The shock absorbing structure comprises a mounting bracket and a shock absorbing assembly, wherein the mounting bracket is connected to the top cover cross beam (1), and the shock absorbing assembly comprises a plurality of stacked and connected mass plates, and one of the mass plates is connected to the mounting bracket; The mounting bracket comprises a main body portion protruding toward a side away from the top cover crossbeam (1), and an outer flange (502) arranged at the edge of the main body portion; The mass plate is connected to the main body part, and the outer flange is connected to the top cover crossbeam (1).

2. The vehicle body top structure according to claim 1, characterized in that: The mounting bracket is formed by bending a plate.

3. The vehicle body top structure according to claim 2, characterized in that: The mounting bracket comprises a first bracket (5) and a second bracket (6) arranged at an interval from the first bracket (5), and the first bracket (5) and the second bracket (6) both comprise the main body portion and the outer flange; In the left-right direction of the vehicle, the first bracket (5) is close to the middle of the shock absorbing assembly, and the second bracket (6) is close to the end of the shock absorbing assembly.

4. The vehicle body top structure according to claim 3, characterized in that: The main body of the first bracket (5) has a recessed portion (5011), and the recessed portion (5011) is recessed toward one side of the top cover cross beam (1).

5. The vehicle body top structure according to claim 2, characterized in that: The shock absorbing assembly comprises a first mass plate (2), a second mass plate (3) and a third mass plate (4) which are stacked and connected in sequence; The first mass plate (2) is connected to the mounting bracket, and the thickness of the second mass plate (3) is smaller than the thickness of the first mass plate (2) and the third mass plate (4).

6. The vehicle body top structure according to claim 5, characterized in that: The thickness of the plate body constituting the mounting bracket is less than the thickness of the first mass plate (2); and / or, The thickness of the first mass plate (2) is the same as the thickness of the third mass plate (4).

7. The vehicle body top structure according to claim 6, characterized in that: The projection of the second mass plate (3) on the roof crossbeam (1) is located within the projection of the first mass plate (2) on the roof crossbeam (1); and / or, The projection of the third mass plate (4) on the roof crossbeam (1) is located within the projection of the second mass plate (3) on the roof crossbeam (1).

8. The vehicle body top structure according to claim 6, characterized in that: The third mass plate (4) is provided with an avoidance hole (403) and / or an avoidance groove (402), and the second mass plate (3) is welded to the first mass plate (2) via the avoidance hole (403) and / or the avoidance groove (402).

9. The vehicle body top structure according to any one of claims 1 to 8, characterized in that: The top cover cross beam (1) comprises a cross beam upper plate (101) and a cross beam lower plate (102) which are buckled and connected, and the cross beam lower plate (102) has a "J"-shaped cross section and has a main plate portion (1021) protruding upwards; The shock absorbing structure is arranged at the bottom of the lower plate (102) of the cross beam and is connected to the middle of the main plate part (1021) along the left-right direction of the vehicle.

10. A vehicle, characterized in that: The vehicle is provided with the vehicle body top structure according to any one of claims 1 to 9.

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