Vehicle body and vehicle
By designing the inner panel of the CD pillar as a one-piece aluminum casting and integrating force transmission ribs, multiple force transmission paths are constructed, solving the problem of increased weight in the traditional CD pillar structure, achieving vehicle body lightweighting and cost control, and meeting the economic requirements of large-scale mass production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG ZEEKR INTELLIGENT TECH CO LTD
- Filing Date
- 2025-08-12
- Publication Date
- 2026-07-21
AI Technical Summary
Traditional CD-pillar body structures are difficult to optimize in three-dimensional topology design, resulting in increased structural weight. This makes it difficult to achieve the optimal balance between performance, lightweighting, and cost, and thus fails to meet the economic requirements of large-scale mass production.
The inner panel of the CD column is designed as a one-piece aluminum casting, and a force transmission rib plate is integrated on it. Force transmission is optimized through multiple force transmission paths, and multiple force transmission ribs and auxiliary force transmission ribs are used to construct connecting components to achieve effective force dispersion and transmission.
This fully utilizes the material properties of aluminum castings, ensuring vehicle body safety while also achieving lightweighting and cost control, thus meeting the economic requirements of large-scale mass production.
Smart Images

Figure CN224528780U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of vehicle body structure, and in particular relates to a vehicle body and a vehicle. Background Technology
[0002] Against the backdrop of rapid development in the automotive industry, the demands for lightweight, safety, and rigidity in vehicle bodies are increasing. To enhance market competitiveness, automakers need to continuously develop new technologies and materials to optimize vehicle body structural performance and reduce costs. Among these, the C and D pillars, as key load-bearing structures of the upper body, account for approximately 205% of the total vehicle weight and have a significant impact on overall vehicle rigidity, NVH (noise, vibration, and harshness) performance, and crash safety.
[0003] Currently, traditional CD-pillar body structures are generally constructed by splicing stamped steel sheets. Limited by welding and stamping processes, it's difficult to achieve three-dimensional topology optimization design. Often, compromises are made by increasing sheet metal thickness and adding reinforcing plates to meet performance requirements, leading to increased structural weight and contradicting lightweight goals. This means that existing publicly available steel-aluminum hybrid or pure aluminum body structures have not yet achieved an optimal balance between performance, lightweighting, and cost, making it difficult to meet the economic requirements of large-scale mass production. Utility Model Content
[0004] In view of this, it is necessary to provide a vehicle body and a vehicle for solving the above-mentioned technical problems.
[0005] A vehicle body, the vehicle body comprising:
[0006] The CD pillar inner panel is configured as a one-piece aluminum casting, and a first connecting joint is formed on the CD pillar inner panel. The first connecting joint includes a force transmission rib plate and a force transmission rib. The force transmission rib is disposed on at least one side of the force transmission rib plate and connected to the force transmission rib plate.
[0007] A connecting component is provided corresponding to the first connecting joint. The connecting component is connected to the inner plate of the CD column through the corresponding first connecting joint. The connecting component includes two connecting bodies. The two connecting bodies and the force transmission rib plate form a first force transmission path so that the two connecting bodies can transmit force to the force transmission rib through the force transmission rib plate.
[0008] Understandably, by designing the inner panel of the CD pillar as a one-piece aluminum casting and integrating force transmission ribs on the inner panel, an optimized force transmission path is formed between the two connecting bodies. This allows the vehicle body design to fully utilize the material properties of aluminum castings, achieving not only effective force distribution and transmission, but also ensuring vehicle safety performance while taking into account the needs of lightweighting and cost control, thus meeting the economic requirements of large-scale mass production.
[0009] In one embodiment, the number of force transmission ribs is configured to be multiple, and the multiple force transmission ribs are independently arranged and connected to the force transmission rib plate respectively.
[0010] One of the connecting bodies forms a second force transmission path with a portion of the force transmission ribs, and the other connecting body forms a third force transmission path with the remaining portion of the force transmission ribs.
[0011] Understandably, by constructing multiple force transmission paths using independent force transmission ribs, the inner panel of the CD column can distribute the force through multiple channels. This not only improves the force distribution efficiency of the inner panel of the CD column, but also ensures the uniform diffusion of force, thereby effectively avoiding local stress concentration on the inner panel of the CD column and improving the structural strength of the inner panel of the CD column.
[0012] In one embodiment, the force-transmitting rib plate includes a plurality of force-transmitting bodies, which are arranged sequentially at intervals in the extension direction of the force-transmitting rib, and the first force-transmitting path is formed between the two connecting bodies through the plurality of force-transmitting bodies.
[0013] The force transmission rib plate is connected to the force transmission body on the side of the force transmission rib plate away from the connecting assembly and the force transmission rib; and any two adjacent force transmission bodies among the plurality of force transmission bodies are connected by auxiliary force transmission ribs.
[0014] It is understandable that using multiple force-transmitting entities to achieve force transmission between two connecting bodies can further improve the force distribution efficiency of the CD pillar inner panel, thereby further improving the structural strength of the CD pillar inner panel.
[0015] In one embodiment, one of the connectors is configured as the inner plate of the upper beam, and the other connector is configured as the reinforcing plate of the upper beam.
[0016] In one embodiment, the force-transmitting rib plate includes a force-transmitting body, the first force-transmitting path is formed between the two connecting bodies through the force-transmitting body, and the force-transmitting rib plate is connected to the force-transmitting rib through the force-transmitting body.
[0017] In one embodiment, one of the connecting bodies is configured as the upper plate of the rear crossbeam of the top cover, and the other connecting body is configured as the lower plate of the rear crossbeam of the top cover.
[0018] Alternatively, one of the connecting bodies may be configured as the inner plate of the upper side beam, and the other connecting body may be configured as the rear wheel arch connecting plate;
[0019] Alternatively, one of the connecting bodies may be configured as a subframe force transmission beam, and the other connecting body may be configured as a rear wheel arch connecting plate;
[0020] Alternatively, one of the connectors may be configured as a D-pillar reinforcement plate, and the other connector may be configured as a D-pillar inner plate.
[0021] In one embodiment, the vehicle body further includes a shock absorber tower force transmission beam and a cast aluminum rear floor, and the inner plate of the CD pillar is connected to the shock absorber tower force transmission beam and the cast aluminum rear floor respectively to form a fourth force transmission path.
[0022] In one embodiment, a second connecting joint is also formed on the inner plate of the CD pillar;
[0023] The vehicle body also includes a shock absorber tower force transmission beam and a cast aluminum rear floor. The inner panel of the CD pillar is connected to the shock absorber tower force transmission beam and the cast aluminum rear floor through the second connecting joint to form a fourth force transmission path.
[0024] In one embodiment, the vehicle body further includes a C-pillar under-reinforcement plate, which is disposed on the outside of the inner panel of the C-pillar and connected to the second connecting joint.
[0025] In one embodiment, the vehicle body further includes wheel covers, which are disposed independently of and connected to the CD pillar inner panel.
[0026] Understandably, setting the wheel cover separately from the CD pillar inner panel allows the CD pillar inner panel and the wheel cover to be manufactured independently, thereby facilitating the design and production of the CD pillar inner panel and reducing costs.
[0027] This application also provides a vehicle, including the vehicle body described above.
[0028] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:
[0029] The vehicle body and vehicle for which this application seeks protection are designed as a one-piece aluminum casting with integrated force transmission ribs on the CD pillar inner panel to form an optimized force transmission path between the two connecting bodies. This allows the design of the vehicle body to fully utilize the material properties of aluminum casting, achieving not only effective force distribution and transmission, but also ensuring the safety performance of the vehicle body while taking into account the needs of lightweighting and cost control, thus meeting the economic requirements of large-scale mass production. Attached Figure Description
[0030] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0031] Figure 1 An exploded view of the vehicle body provided in this application.
[0032] Figure 2 This is a structural schematic diagram of the vehicle body provided in this application.
[0033] Figure 3 for Figure 2 Enlarged view of part a in the middle.
[0034] Figure 4 for Figure 2 A magnified view of part a from another perspective.
[0035] Figure 5 for Figure 4 Sectional view of AA.
[0036] Figure 6 for Figure 4 BB section view.
[0037] Figure 7 for Figure 4 CC section view.
[0038] Figure 8 This is a schematic diagram illustrating the principle of force transmission from the inner plate of the upper beam and the reinforcing plate of the upper beam to the force transmission reinforcement through two force transmission bodies in this application.
[0039] Figure 9 for Figure 2 Enlarged view of section b in the middle.
[0040] Figure 10 for Figure 2 Enlarged view of section C in the middle.
[0041] Figure 11 for Figure 2 Enlarged view of section d in the middle.
[0042] Figure 12 for Figure 2 Enlarged view of part e in the middle.
[0043] Figure 13 This is a schematic diagram illustrating the principle of force transmission between two connecting bodies in this application through a force-transmitting main body to the force-transmitting tendon.
[0044] Figure 14 This is a structural schematic diagram of the vehicle body from another perspective provided in this application.
[0045] Figure 15 for Figure 14 Sectional view of AA.
[0046] Figure 16 for Figure 14 BB section view.
[0047] Figure 17 for Figure 14 CC section view.
[0048] Reference numerals: 100, Vehicle body; 10, C and D pillar inner panels; 11, First connecting joint; 111, Force transmission rib plate; 1111, Force transmission main body; 112, Force transmission rib; 113, Auxiliary force transmission rib; 12, Second connecting joint; 20, Connecting assembly; 200, Connecting body; 201, Upper side beam inner panel; 202, Upper side beam reinforcing plate; 203, Top cover rear crossbeam upper plate; 204, Top cover rear crossbeam lower plate; 205, Subframe force transmission beam; 206, Rear wheel arch connecting plate; 207, D pillar reinforcing plate; 208, D pillar inner panel; 30, Shock absorber tower force transmission beam; 40, Cast aluminum rear floor; 50, C pillar lower reinforcing plate; 60, Wheel arch. Detailed Implementation
[0049] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0050] It should be noted that when a component is said to be "located on" another component, it can be directly located on the other component or may have an intervening component. When a component is considered to be "located on" another component, it can be directly located on the other component or may have an intervening component. When a component is considered to be "fixed to" another component, it can be directly fixed to the other component or may have an intervening component.
[0051] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0052] like Figures 1 to 13As shown, the vehicle body 100 provided in this application includes a CD pillar inner panel 10 and a connecting assembly 20. The CD pillar inner panel 10 is configured as a one-piece aluminum casting, and a first connecting joint 11 is formed on the CD pillar inner panel 10. The first connecting joint 11 includes a force transmission rib plate 111 and a force transmission rib 112. The force transmission rib 112 is disposed on at least one side of the force transmission rib plate 111 and connected to the force transmission rib plate 111. The connecting assembly 20 is correspondingly disposed with the first connecting joint 11 and is connected to the CD pillar inner panel 10 through the corresponding first connecting joint 11. The connecting assembly 20 includes two connecting bodies 200, and a first force transmission path is formed between the two connecting bodies 200 and the force transmission rib plate 111, so that the two connecting bodies 200 can transmit force to the force transmission rib 112 through the force transmission rib plate 111. Here, the two connecting bodies 200 can be connected to the CD pillar inner panel 10 by conventional connection methods such as welding, riveting, or STR, which will not be elaborated here.
[0053] As can be seen from the above, the vehicle body 100 of this application designs the CD pillar inner panel 10 as an integral aluminum casting and integrates the force transmission rib plate 111 on the CD pillar inner panel 10 to form an optimized force transmission path between the two connecting bodies 200. This allows the design of the vehicle body 100 to give full play to the material characteristics of aluminum casting, not only achieving effective force dispersion and transmission, but also ensuring the safety performance of the vehicle body while taking into account the needs of lightweighting and cost control, thereby meeting the economic requirements of large-scale mass production.
[0054] like Figure 8 , Figure 13 As shown, in one embodiment, the number of force-transmitting ribs 112 is configured as multiple ribs, which are independently arranged and connected to the force-transmitting rib plate 111 respectively; one connector 200 forms a second force transmission path with a portion of the force-transmitting ribs 112, and another connector 200 forms a third force transmission path with the remaining portion of the force-transmitting ribs 112. That is, in this embodiment, the first connecting joint 11 uses multiple spaced force-transmitting ribs 112 to construct multiple force transmission paths, enabling the CD column inner plate 10 to distribute force through multiple channels. This not only improves the force distribution efficiency of the CD column inner plate 10 but also ensures uniform force diffusion, effectively avoiding local stress concentration on the CD column inner plate 10 and improving the structural strength of the CD column inner plate 10. Here, the multiple force-transmitting ribs 112 are arranged in parallel.
[0055] It should be noted that the CD pillar inner plate 10 of this application uses a force transmission rib plate 111 to connect two connecting bodies 200 to form a first force transmission path, thereby realizing the construction of a force transmission channel between the second force transmission path and the third force transmission path for the two connecting bodies 200 to transmit force individually. This allows any connecting body 200 in the connecting assembly 20 to exert a force on the CD pillar inner plate 10, and under the transmission of the force transmission rib plate 111, the force can be transmitted outward simultaneously through the second force transmission path and the third force transmission path, thus achieving effective force dispersion.
[0056] like Figure 4 , Figure 5 As shown, in one embodiment, the force-transmitting rib plate 111 includes a plurality of force-transmitting bodies 1111, which are arranged sequentially at intervals along the extension direction of the force-transmitting rib 112. A first force transmission path is formed between the two connecting bodies 200 through the plurality of force-transmitting bodies 1111. The force-transmitting rib plate 111 is connected to the force-transmitting rib 112 via the force-transmitting bodies 1111 on the side of the force-transmitting rib plate 111 facing away from the connecting assembly 20. Furthermore, any two adjacent force-transmitting bodies 1111 are connected by an auxiliary force-transmitting rib 113. In other words, in this embodiment, the CD pillar inner panel 10 uses a plurality of force-transmitting bodies 1111 to transmit force between the two connecting bodies 200, which further improves the force distribution efficiency of the CD pillar inner panel 10 and enhances its structural strength. Here, the number of force-transmitting bodies 1111 is configured as two, and the two force-transmitting bodies 1111 are arranged in parallel. It is understood that in other embodiments, the number of force-transmitting bodies 1111 may also be configured as three, four, or even more, which will not be elaborated here. It should be noted that the aforementioned force-transmitting ribs 112 and auxiliary force-transmitting ribs 113 can be set on the inner and outer sides of the CD column inner plate 10 according to the usage requirements.
[0057] like Figures 2 to 7 As shown, in this embodiment, one connector 200 is configured as the inner plate 201 of the upper beam, and the other connector 200 is configured as the reinforcing plate 202 of the upper beam. That is, when the inner plate 201 or the reinforcing plate 202 of the upper beam exerts a force on the inner plate 10 of the CD column, the inner plate 201 and the reinforcing plate 202 of the upper beam can transmit the force through multiple force-transmitting bodies 1111, and achieve effective force dispersion.
[0058] like Figure 13As shown, in one embodiment, the force-transmitting rib plate 111 includes a force-transmitting body 1111. A first force transmission path is formed between the two connecting bodies 200 through the force-transmitting body 1111. Furthermore, the force-transmitting rib plate 111 is connected to the force-transmitting rib 112 through the force-transmitting body 1111. In other words, in this embodiment, the CD column inner plate 10 uses a force-transmitting body 1111 to realize the transmission of force between the two connecting bodies 200.
[0059] like Figure 2 , Figures 9 to 12 As shown, in this embodiment, one of the connecting bodies 200 is configured as the upper plate 203 of the rear crossbeam of the roof, and the other connecting body 200 is configured as the lower plate 204 of the rear crossbeam of the roof; or, one of the connecting bodies 200 is configured as the inner plate 201 of the upper side beam, and the other connecting body 200 is configured as the rear wheel arch connecting plate 206; or, one of the connecting bodies 200 is configured as the subframe force transmission beam 205, and the other connecting body 200 is configured as the rear wheel arch connecting plate 206; or, one of the connecting bodies 200 is configured as the D-pillar reinforcing plate 207, and the other connecting body 200 is configured as the inner plate 208 of the D-pillar.
[0060] like Figures 14 to 17 As shown, in one embodiment, a second connecting joint 12 is also formed on the CD pillar inner panel 10; wherein, the vehicle body 100 also includes a shock absorber tower force transmission beam 30 and a cast aluminum rear floor 40, and the CD pillar inner panel 10 is connected to the shock absorber tower force transmission beam 30 and the cast aluminum rear floor 40 respectively through the second connecting joint 12 to form a fourth force transmission path. That is to say, in this embodiment, the shock absorber tower force transmission beam 30 and the cast aluminum rear floor 40 in the vehicle body 100 can transmit force through the second connecting joint 12 on the CD pillar inner panel 10. Here, the aforementioned second connecting joint 12 is a conventional joint structure on the CD pillar inner panel 10, so that the CD pillar inner panel 10 of this application can be flexibly combined with the aforementioned first connecting joint 11 and conventional joint structures according to the usage requirements. It should be noted that the connection method of how the aforementioned CD pillar inner panel 10 is connected to the shock absorber tower force transmission beam 30 and the cast aluminum rear floor 40 can adopt conventional methods of the prior art, which will not be elaborated here.
[0061] like Figures 15 to 17 As shown, in this embodiment, the vehicle body 100 also includes a C-pillar under-reinforcement plate 50. The C-pillar under-reinforcement plate 50 is disposed on the outside of the CD-pillar inner panel 10 and connected to the second connecting joint 12, so that the C-pillar under-reinforcement plate 50 can be connected to the fourth force transmission path formed by the shock absorber tower force transmission beam 30 and the cast aluminum rear floor 40 with the CD-pillar inner panel 10 through the second connecting joint 12 on the CD-pillar inner panel 10.
[0062] like Figure 14As shown, in one embodiment, the vehicle body 100 also includes a wheel arch 60, which is independently disposed relative to and connected to the CD pillar inner panel 10. This allows the CD pillar inner panel 10 and the wheel arch 60 to be manufactured independently, thereby facilitating the design and production of the CD pillar inner panel 10 and reducing costs. Here, the wheel arch 60 is made of stainless steel.
[0063] In addition, this application also provides a vehicle, including the vehicle body 100 described above.
[0064] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0065] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Any appropriate changes and variations made to the above embodiments within the scope of the essential spirit of the present utility model shall fall within the scope of protection claimed by the present utility model.
Claims
1. A vehicle body, characterized in that, The vehicle body (100) includes: The CD column inner plate (10) is configured as an integral aluminum casting, and a first connecting joint (11) is formed on the CD column inner plate (10). The first connecting joint (11) includes a force transmission rib plate (111) and a force transmission rib (112). The force transmission rib (112) is disposed on at least one side of the force transmission rib plate (111) and connected to the force transmission rib plate (111). A connecting component (20) is provided corresponding to the first connecting joint (11). The connecting component (20) is connected to the inner plate (10) of the CD column through the corresponding first connecting joint (11). The connecting component (20) includes two connecting bodies (200). The two connecting bodies (200) and the force transmission rib plate (111) form a first force transmission path so that the two connecting bodies (200) can transmit force to the force transmission rib (112) through the force transmission rib plate (111).
2. The vehicle body according to claim 1, characterized in that, The number of the force transmission ribs (112) is configured to be multiple, and the multiple force transmission ribs (112) are independently arranged and connected to the force transmission rib plate (111) respectively. One of the connecting bodies (200) forms a second force transmission path with a portion of the force transmission ribs (112), and the other connecting body (200) forms a third force transmission path with the remaining portion of the force transmission ribs (112).
3. The vehicle body according to claim 2, characterized in that, The force transmission rib plate (111) includes a plurality of force transmission bodies (1111), which are arranged sequentially at intervals in the extension direction of the force transmission rib (112), and the first force transmission path is formed between the two connecting bodies (200) through the plurality of force transmission bodies (1111). The force transmission rib plate (111) is connected to the force transmission rib (112) through the force transmission body (1111) on the side of the force transmission rib plate (111) facing away from the connecting assembly (20); and any two adjacent force transmission bodies (1111) among the plurality of force transmission bodies (1111) are connected by auxiliary force transmission ribs (113).
4. The vehicle body according to claim 3, characterized in that, One of the connecting bodies (200) is configured as the inner plate (201) of the upper beam, and the other connecting body (200) is configured as the reinforcing plate (202) of the upper beam.
5. The vehicle body according to claim 2, characterized in that, The force transmission rib plate (111) includes a force transmission body (1111), and the first force transmission path is formed between the two connecting bodies (200) through the force transmission body (1111). The force transmission rib plate (111) is connected to the force transmission rib (112) through the force transmission body (1111).
6. The vehicle body according to claim 5, characterized in that, One of the connecting bodies (200) is configured as the upper plate (203) of the rear crossbeam of the top cover, and the other connecting body (200) is configured as the lower plate (204) of the rear crossbeam of the top cover. Alternatively, one of the connecting bodies (200) may be configured as an inner plate (201) of the upper side beam, and the other connecting body (200) may be configured as a rear wheel arch connecting plate (206). Alternatively, one of the connecting bodies (200) may be configured as a subframe force transmission beam (205), and the other connecting body (200) may be configured as a rear wheel arch connecting plate (206). Alternatively, one of the connectors (200) may be configured as a D-pillar reinforcement plate (207), and the other connector (200) may be configured as a D-pillar inner plate (208).
7. The vehicle body according to claim 1, characterized in that, A second connecting joint (12) is also formed on the inner plate (10) of the CD column. The vehicle body (100) also includes a shock absorber tower force transmission beam (30) and a cast aluminum rear floor (40). The CD pillar inner panel (10) is connected to the shock absorber tower force transmission beam (30) and the cast aluminum rear floor (40) respectively through the second connecting joint (12) to form a fourth force transmission path.
8. The vehicle body according to claim 7, characterized in that, The vehicle body (100) also includes a C-pillar under-reinforcement plate (50), which is disposed on the outside of the inner plate (10) of the C-pillar and connected to the second connecting joint (12).
9. The vehicle body according to claim 1, characterized in that, The vehicle body (100) also includes wheel covers (60), which are independently disposed relative to the CD pillar inner panel (10) and connected to the CD pillar inner panel (10).
10. A vehicle, characterized in that, The vehicle body (100) includes any one of claims 1 to 9.