Top cover assembly of vehicle and vehicle
By employing a collaborative design of reinforcing components, side panel connecting plates, and crossbeams in the vehicle roof assembly, the issues of increased weight and weld fatigue caused by the transverse reinforcing beams were resolved, achieving both lightweighting and improved safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG GEELY HLDG GRP CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-05-01
AI Technical Summary
In the existing technology, adding transverse reinforcing beams to the outer panel of the vehicle roof increases the weight of the vehicle body and is prone to weld fatigue failure.
The outer top panel and the side panel are connected by reinforcing members, which, together with the top panel beam, form a locally arranged reinforcing structure to replace the traditional full-width transverse reinforcing beam, thereby dispersing stress concentration and optimizing the force transmission path.
While ensuring roof rigidity, redundant materials are reduced to lower the overall vehicle weight and improve lightweighting, safety, and NVH performance.
Smart Images

Figure CN224184351U_ABST
Abstract
Description
Vehicle roof assembly and vehicle Technical Field
[0001] This application relates to vehicle component technology, and more particularly to a roof assembly for a vehicle and the vehicle itself. Background Technology
[0002] In vehicle body structure design, the roof assembly, as a key load-bearing component connecting the side panel assembly, windshield, and rear panel, directly affects the vehicle's NVH performance, collision safety, and energy efficiency due to its rigidity, lightweight design, and safety.
[0003] In related technologies, in order to enhance the bending resistance of the vehicle roof outer panel, additional transverse reinforcing beams are usually spot-welded to the inner side of the roof outer panel. However, since the transverse reinforcing beams extend along the width of the vehicle body, there are many spot-welding positions for the transverse reinforcing beams, which increases the extra weight of the vehicle body and is prone to weld fatigue failure due to stress concentration. Summary of the Invention
[0004] This application provides a roof assembly and a vehicle to solve the technical problem in the related art where the roof assembly adds extra weight due to the addition of extra lateral reinforcing beams to improve bending resistance.
[0005] On one hand, this application provides a roof assembly for a vehicle, comprising:
[0006] Top cover beam and top cover outer plate disposed on the top cover beam;
[0007] A side panel connecting plate, one end of which is used to connect to the side panel assembly of the vehicle, and the other end of which is connected to the roof crossbeam;
[0008] A reinforcing member connects the outer top cover plate and the side panel connecting plate to support the outer top cover plate together with the top cover beam.
[0009] In some possible implementations, there is an assembly gap between the top cover outer plate and the side connecting plate, and the reinforcing member is disposed in the assembly gap.
[0010] In some possible implementations, the reinforcement includes a main body portion for abutting against the outer panel of the top cover, the main body portion being bolted to the outer panel of the top cover.
[0011] In some possible implementations, the main body has flanges bent on opposite sides, and the flanges are bolted to the side panel connecting plate.
[0012] In some possible implementations, the main body and the outer top cover are connected by a first bolt, and the two flanges are connected to the side panel connecting plate by a second bolt; the second bolt has at least two spaced apart.
[0013] In some possible implementations, the joint edge of the main body and the flange is provided with concave reinforcing ribs.
[0014] In some possible implementations, the two flanges are arranged symmetrically relative to the main body.
[0015] In some possible implementations, along the length of the vehicle, the roof beams have at least two spaced apart, each of the roof beams is connected to a side panel connecting plate on its opposite sides, and each side panel connecting plate is connected to the outer roof panel by the reinforcing member.
[0016] On the other hand, this application also provides a vehicle, including a vehicle body, on which a side panel assembly and a roof assembly of the vehicle described in any of the preceding claims are connected.
[0017] In some possible implementations, the side panel assembly includes:
[0018] The outer side panel and the inner side panel have a cavity structure between them;
[0019] A side reinforcement plate is disposed in the cavity structure. One end of the side reinforcement plate is connected to the outer side panel and the outer top panel, and the other end of the side reinforcement plate is connected to the inner side panel and the side connecting plate.
[0020] The vehicle roof assembly and vehicle provided in this application embodiment utilize a reinforcing member to connect the outer roof panel and the side panel connecting plate. The reinforcing member and the roof crossbeam work together to provide load-bearing capacity for the outer roof panel. Thus, the locally arranged reinforcing member design replaces the full-width transverse reinforcing beam in the traditional technology, reduces redundant materials, disperses stress concentration, and optimizes the force transmission path of the outer roof panel. This helps to reduce the overall vehicle weight while ensuring the roof rigidity, enabling the roof assembly to balance lightweight, safety, and NVH performance. Attached Figure Description
[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.
[0022] Figure 1 is a structural schematic diagram of the roof assembly of the vehicle in an embodiment of this application;
[0023] Figure 2 is a schematic diagram of the reinforcing member in Figure 1;
[0024] Figure 3 is a schematic diagram showing the distribution of the reinforcing members on the outer plate of the top cover in an embodiment of this application.
[0025] Explanation of reference numerals in the attached figures
[0026] 100. Top cover crossbeam; 200. Top cover outer panel; 300. Side panel connecting plate;
[0027] 400. Reinforcing member; 401. Main body; 402. Flanged edge; 403. First bolt; 404. Second bolt; 405. Reinforcing rib; 406. Mounting hole;
[0028] 500. Side panel assembly; 501. Side panel outer panel; 502. Side panel inner panel; 503. Side panel reinforcement panel.
[0029] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation
[0030] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. The embodiments of this application will be described in detail below with reference to the accompanying drawings.
[0031] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0032] In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0033] The terms "first," "second," "third," "fourth," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in a sequence other than those illustrated or described herein.
[0034] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or apparatus.
[0035] As mentioned in the background art, in order to enhance the bending resistance of the outer panel of the vehicle roof, additional transverse reinforcing beams are generally spot-welded to the inner side of the outer panel. However, since the transverse reinforcing beams extend along the width of the vehicle body, there are many spot-welding positions for the transverse reinforcing beams, which increases the extra weight of the vehicle body and is prone to weld fatigue failure due to stress concentration.
[0036] Based on the above description, one or more embodiments of this application provide a roof assembly and a vehicle. In the roof assembly, a reinforcing member is used to connect the outer roof panel and the side panel connecting plate. The reinforcing member and the roof crossbeam work together to provide load-bearing effect for the outer roof panel. Thus, the locally arranged reinforcing member design replaces the full-width transverse reinforcing beam in the traditional technology, reduces redundant materials, disperses stress concentration effect, optimizes the force transmission path of the outer roof panel, and helps to reduce the overall vehicle weight while ensuring the roof rigidity. This allows the roof assembly to take into account lightweight, safety and NVH performance.
[0037] The top cover assembly of this application embodiment will be described below with reference to the accompanying drawings.
[0038] As shown in Figures 1 to 3, the top cover assembly of this application embodiment includes a top cover beam 100, a top cover outer plate 200, a side connecting plate 300, and a reinforcing member 400.
[0039] The system includes a top cover beam 100 and a top cover outer panel 200 mounted on the top cover beam 100; a side panel connecting plate 300 with one end connected to the side panel assembly 500 of the vehicle, and the other end connected to the top cover beam 100; and a reinforcing member 400 connecting the top cover outer panel 200 and the side panel connecting plate 300 to support the top cover outer panel 200 together with the top cover beam 100.
[0040] As can be seen from the above description, the roof assembly of this application embodiment uses a side connecting plate 300 to connect the side assembly 500 and the roof crossbeam 100, and a reinforcing member 400 to connect the side connecting plate 300 and the roof outer panel 200. Therefore, the reinforcing member 400 is arranged close to the side assembly 500 of the vehicle. The side-arranged reinforcing member 400 strengthens the side strength of the roof outer panel 200. The reinforcing member 400 and the roof crossbeam 100 together support the roof outer panel 200. Under the premise of ensuring the structural strength of the roof outer panel 200, the overall material cost of the reinforcing structure is reduced, which is conducive to reducing the weight of the whole vehicle.
[0041] In this embodiment, the outer roof panel 200 of the roof assembly refers to the roof panel on the top of the vehicle, which is used to form the cab, shield it from wind, rain, and dust, and ensure the temperature and environment inside the cab. The roof crossbeams 100 are generally arranged in three to five intervals along the length of the vehicle. For example, the roof crossbeams 100 include a front roof crossbeam, a middle roof crossbeam, and a rear roof crossbeam. Each roof crossbeam 100 is connected to the side panel connecting plates 300 on both sides of the vehicle. The side panel connecting plates 300 connect the roof crossbeams 100 and the side panel assembly 500, thereby connecting the roof assembly and the side panel assembly 500 to form a complete vehicle body.
[0042] As shown in Figure 1, in some embodiments, there is an assembly gap between the top cover outer plate 200 and the side connecting plate 300, and the reinforcing member 400 is disposed in the assembly gap.
[0043] Generally, due to limitations in vehicle assembly and component dimensions, when transitioning from a flat roof to the side panel assembly 500, there will be a certain assembly gap between the side panel connecting plate 300 and the roof outer panel 200. Using this assembly gap to install the reinforcing component 400 does not require additional space inside the vehicle body, which helps to reduce the difficulty of vehicle body modification.
[0044] Furthermore, since the reinforcing member 400 is located in the assembly gap, during the actual assembly process, the reinforcing member 400 can be pre-installed on one side of the top cover outer panel 200 or the side panel connecting plate 300. Adjusting and positioning the reinforcing member 400 through the space of the assembly gap helps to improve the assembly efficiency of the body-in-white.
[0045] Furthermore, the reinforcing member 400 includes a main body 401 for abutting against the outer plate 200 of the top cover. The main body 401 is bolted to the outer plate 200 of the top cover. The opposite sides of the main body 401 are respectively bent to form flanges 402, and the flanges 402 are bolted to the side connecting plate 300.
[0046] In the above scheme, the main body 401 and the flange 402 of the reinforcing member 400 are integrally stamped parts. The main body 401 has a mating surface that abuts against the outer plate 200 of the top cover. The main body 401 abuts against the outer plate 200 of the top cover and forms a bolt connection. Similarly, the flange 402 has a mating surface that abuts against the side connecting plate 300. The flange 402 abuts against the side connecting plate 300 and forms a bolt connection. Thus, the reinforcing member 400 is actually bolted to both the side connecting plate 300 and the outer plate 200 of the top cover.
[0047] The cross-sections of the main body 401 and the flange 402 in the reinforcing member 400 are U-shaped. For example, the flange 402 has a first bend relative to the main body 401 and a second bend relative to the first bend. The second bend is used for connection to the side panel connecting plate 300. Here, the angles of the first bend and the second bend can be flexibly set according to factors such as assembly clearance and material strength of the reinforcing member 400. For example, the first bend is perpendicular to the main body 401, and the second bend is perpendicular to the first bend. In addition, the bent flange 402 can also absorb assembly deviations between the side panel assembly 500 and the top cover outer plate 200 by utilizing elastic deformation, reducing stress concentration caused by the hard connection of the reinforcing member 400.
[0048] As an alternative implementation, the main body 401 is connected to the side panel connecting plate 300, and the flange 402 is connected to the top cover outer plate 200. In this case, the reinforcing member 400 is arranged with the opening facing upward.
[0049] In this embodiment, the main body 401 and the top cover outer plate 200 are connected by a first bolt 403, and the two flanges 402 are connected to the side wall connecting plate 300 by a second bolt 404, wherein the second bolt 404 has at least two spaced apart.
[0050] Specifically, both the main body 401 and the outer top cover plate 200 have mounting holes 406. First bolts 403 pass through the mounting holes 406 in both the main body 401 and the outer top cover plate 200, thereby connecting the main body 401 and the outer top cover plate 200. Both the flange 402 and the side panel connecting plate 300 have through holes. Second bolts 404 pass through the through holes in both the flange 402 and the side panel connecting plate 300, thereby connecting the flange 402 and the side panel connecting plate 300. Generally, two or three second bolts 404 can be provided at intervals. Providing at least two second bolts 404 can further enhance the connection strength between the reinforcing member 400 and the side panel connecting plate 300.
[0051] To ensure the connection between the main body 401 and the top cover outer plate 200, and between the flange 402 and the side connecting plate 300, in some embodiments, both the first bolt 403 and the second bolt 404 are provided with anti-loosening measures. For example, thread-locking adhesive is applied to the first bolt 403 and the second bolt 404, or both the first bolt 403 and the second bolt 404 are secured with self-locking nuts.
[0052] Sealing components can also be provided between the main body 401 and the outer roof panel 200, and between the flange 402 and the side panel connecting plate 300 to enhance the sealing effect. For example, sealing strips (foam) can be filled or sealing rings can be clamped. By providing sealing components, water can be prevented from leaking into the outer roof panel 200 through the connection of the reinforcing member 400. At the same time, the sealing components can also play a role in buffering and vibration reduction, preventing resonance and abnormal noise between the outer roof panel 200 and the reinforcing member 400.
[0053] As an alternative implementation, the first bolt 403 and the second bolt 404 can be replaced with other easily disassembled components. For example, the mounting holes 406 on the main body 401 and the outer plate 200 of the top cover, the flange 402 and the side connecting plate 300 can be kept in the same way, the main body 401 and the outer plate 200 of the top cover are fixed together by quick-release pins passing through the mounting holes 406 of the two, and the flange 402 and the side connecting plate 300 are fixed together by quick-release pins passing through the through holes of the two.
[0054] In some embodiments, one of the main body 401 and the top cover outer plate 200, and the other of the flange 402 and the side connecting plate 300, are fixed by spot welding, while the other is detachable. For example, the main body 401 and the top cover outer plate 200 are spot welded together, and the flange 402 and the side connecting plate 300 are detachably connected. Alternatively, the main body 401 and the top cover outer plate 200 are detachably connected, and the flange 402 and the side connecting plate 300 are spot welded together. Thus, in actual assembly, the detachable connection is assembled first, and the detachable connection constitutes the pre-positioning of the reinforcing member 400 in the top cover assembly, which facilitates the subsequent spot welding process.
[0055] In this embodiment, the main body 401 is provided with a mounting hole 406, and the first bolt 403 is a fastener connected to the corresponding through hole. The flange 402 on one side of the main body 401 is provided with two to three through holes, and the second bolt 404 is provided with the number of through holes. By providing multiple through holes on the flange 402, the connection strength between the reinforcing member 400 and the side connecting plate 300 can be further improved, ensuring the support effect of the reinforcing member 400.
[0056] It should be noted that, in some embodiments, since the reinforcing member 400 is located in the assembly gap between the outer roof panel 200 and the side panel connecting plate 300, the reinforcing member 400 is actually located in the left and right side edge areas of the vehicle. Therefore, for different vehicle models, the connection point between the reinforcing member 400 and the outer roof panel 200 can also be configured as the mounting base for adding auxiliary components, providing additional mounting points for the connection of auxiliary components to the outer roof panel 200.
[0057] For example, in light commercial vehicles (LCVs), the roof of the vehicle may be equipped with auxiliary components such as luggage racks, shelves, or storage boxes. The connection between these auxiliary components and the outer roof panel 200 can be fixed by the first bolt 403 of the reinforcing member 400 or by a quick-release pin. While ensuring the connection strength between the auxiliary components and the outer roof panel 200, the use of additional connecting parts can be reduced, which is beneficial to meeting the customized modification needs of different customers for the vehicle roof.
[0058] As shown in Figure 2, in this embodiment of the application, the joint edge of the main body 401 and the flange 402 is provided with a concave reinforcing rib 405. Two or more reinforcing ribs 405 are arranged at intervals along the joint edge of the main body 401 and the flange 402. By setting the reinforcing ribs 405, the overall structural strength of the reinforcing member 400 is further improved, and the supporting effect of the reinforcing member 400 on the top cover outer plate 200 is ensured.
[0059] Furthermore, the two flanges 402 in the aforementioned reinforcing member 400 are arranged symmetrically relative to the main body 401. The reinforcing member 400 as a whole is a self-symmetrical component. Therefore, the reinforcing member 400 does not need to distinguish the installation direction. For assembly scenarios on the left and right sides of the vehicle body, the reinforcing member 400 can meet the common needs of assembly on different sides, which is conducive to saving development costs.
[0060] As shown in Figure 3, in some embodiments, along the length of the vehicle, the roof beam 100 has at least two spaced-apart crossbeams, and each roof beam 100 has a side panel connecting plate 300 connected to its opposite sides. Each side panel connecting plate 300 is connected to the roof outer plate 200 by a reinforcing member 400.
[0061] In the above scheme, for example, each side of the vehicle body has a side panel assembly 500. The roof crossbeam 100 includes a front roof crossbeam, a middle roof crossbeam, and a rear roof crossbeam. Each roof crossbeam 100 is connected to the corresponding side panel assembly 500 on both the left and right sides through a side panel connecting plate 300. Therefore, each roof crossbeam 100 has a reinforcing member 400 on both the left and right sides. Taking the length direction of the vehicle as an example, there are 6 reinforcing members 400 in two rows and three columns in Figure 3. Therefore, the arrangement of multiple reinforcing members 400 effectively enhances the local structural strength of the edges of the left and right sides of the vehicle body. Through the cooperation of multiple reinforcing members 400 and roof crossbeam 100, the bending resistance of the roof assembly is improved, and there is no need to add an additional roof crossbeam 100, reducing the material cost and weight of the whole vehicle.
[0062] This application also provides a vehicle, including a vehicle body, on which a side panel assembly 500 and a roof assembly of the vehicle in any of the above embodiments are connected.
[0063] Since it includes the roof assembly of the vehicle in any of the above embodiments, it has all the advantages of a vehicle roof assembly, which will not be repeated in the embodiments of this application.
[0064] As shown in Figure 1, in some embodiments, the side panel assembly 500 includes an outer side panel 501, an inner side panel 502, and a side panel reinforcing plate 503. There is a cavity structure between the outer side panel 501 and the inner side panel 502. The side panel reinforcing plate 503 is disposed in the cavity structure. One end of the side panel reinforcing plate 503 is connected to the outer side panel 501 and the top cover outer panel 200, and the other end of the side panel reinforcing plate 503 is connected to the inner side panel 502 and the side panel connecting plate 300.
[0065] In the above embodiments, the side wall reinforcement plate 503, the side wall outer plate 501 and the top cover outer plate 200 are all connected by spot welding, and the side wall reinforcement plate 503, the side wall inner plate 502 and the side wall connecting plate 300 are all connected by spot welding. By setting the side wall reinforcement plate 503, the overall structural strength of the vehicle side wall assembly 500 can be further improved. The side wall reinforcement plate 503 and the reinforcement member 400 together ensure the connection effect between the side wall assembly 500 and the top cover assembly.
[0066] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.
[0067] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.
Claims
1. A roof assembly for a vehicle, characterized in that, include: Top cover beam and top cover outer plate disposed on the top cover beam; A side panel connecting plate, one end of which is used to connect to the side panel assembly of the vehicle, and the other end of which is connected to the roof crossbeam; a reinforcing member, which connects the outer roof panel and the side panel connecting plate, so as to support the outer roof panel together with the roof crossbeam.
2. The roof assembly of the vehicle according to claim 1, characterized in that, There is an assembly gap between the top cover outer plate and the side connecting plate, and the reinforcing member is disposed in the assembly gap.
3. The roof assembly of the vehicle according to claim 2, characterized in that, The reinforcing member includes a main body portion for abutting against the outer plate of the top cover, and the main body portion is bolted to the outer plate of the top cover.
4. The roof assembly of the vehicle according to claim 3, characterized in that, The main body has flanges formed by bending on both sides, and the flanges are bolted to the side panel connecting plate.
5. The roof assembly of the vehicle according to claim 4, characterized in that, The main body and the top cover outer plate are connected by a first bolt, and the two flanges are connected to the side panel connecting plate by a second bolt; the second bolt has at least two bolts spaced apart.
6. The roof assembly of the vehicle according to claim 4, characterized in that, The joint edge between the main body and the flange is provided with concave reinforcing ribs.
7. The roof assembly of the vehicle according to claim 4, characterized in that, The two flanges are arranged symmetrically relative to the main body.
8. The roof assembly of the vehicle according to any one of claims 1 to 7, characterized in that, Along the length of the vehicle, the roof beam has at least two spaced-apart crossbeams, and each of the roof beams is connected to a side panel connecting plate on its opposite sides. Each side panel connecting plate is connected to the outer roof panel by the reinforcing member.
9. A vehicle, characterized in that, It includes a vehicle body, on which a side panel assembly and a roof assembly of the vehicle as described in any one of claims 1 to 8 are connected.
10. The vehicle according to claim 9, characterized in that, The side panel assembly includes: an outer side panel and an inner side panel, with a cavity structure between the outer side panel and the inner side panel; a side panel reinforcing plate disposed in the cavity structure, one end of the side panel reinforcing plate being connected to both the outer side panel and the top cover outer panel, and the other end of the side panel reinforcing plate being connected to both the inner side panel and the side panel connecting plate.