Column structure, body and automobile

Abstract

This invention relates to the field of automotive body technology, specifically disclosing a strut structure, a body, and an automobile. The strut structure, used for connection to a roof crossbeam, includes: an inner panel with a connecting section for connecting to the roof crossbeam; an outer panel connected to the outer side of the inner panel along a first direction, forming a first cavity between the outer panel and the inner panel; and a reinforcing member connected between the outer panel and the connecting section to isolate the first cavity from the roof crossbeam. The strut structure, body, and automobile of this invention utilize the reinforcing member to isolate the first cavity formed by the strut structure from the transverse cavity of the roof crossbeam, blocking the cavity communication path and effectively reducing the transmission path of vibration and noise, thereby significantly improving the NVH performance of the entire vehicle.

Description

Technical Field

[0001] This invention relates to the field of automotive body technology, specifically to a strut structure, a body, and an automobile. Background Technology

[0002] With the rapid development of automotive technology, consumers are paying increasing attention to vehicle safety and demanding higher NVH (noise, vibration, and harshness) performance. In traditional vehicle body structures, the roof beam supporting the roof typically overlaps with the side assembly. In some technical solutions, the roof beam overlaps with the side assembly struts. However, the existing overlap structure between the roof beam and struts is poorly designed, causing the lateral cavity formed within the roof beam to connect with the longitudinal cavity formed within the struts, severely reducing the overall NVH performance of the vehicle. Summary of the Invention

[0003] One objective of this invention is to provide a support structure to solve the problem of unreasonable overlapping structure between the roof beam and the support in the prior art, which reduces the NVH (Noise, Vibration, and Harshness) performance of the whole vehicle; a second objective is to provide a body; and a third objective is to provide an automobile.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] A support structure for connection to a top cover beam includes: an inner plate including a connecting section for connection to the top cover beam; an outer plate connected to the outer side of the inner plate along a first direction and forming a first cavity between the outer plate and the inner plate; and a reinforcing member connected between the outer plate and the connecting section to isolate the first cavity from the top cover beam.

[0006] Based on the aforementioned technical means, by setting a reinforcing member between the inner and outer panels, on the one hand, in the first direction, the reinforcing member overlaps between the inner and outer panels, providing support and improving the overall rigidity of the area where the support structure overlaps with the roof beam. Simultaneously, because the overall rigidity of the area where the support structure overlaps with the roof beam is improved, the stability of the roof beam support is ensured, reducing the vibration frequency of the roof beam and the roof supported on it, thus solving the problem of the roof beam's substandard modal characteristics. On the other hand, the reinforcing member isolates the first cavity formed by the support structure from the transverse cavity of the roof beam, blocking the cavity communication path and effectively reducing the transmission path of vibration and noise, thereby significantly improving the overall NVH performance of the vehicle.

[0007] Furthermore, the reinforcing member includes a first overlapping edge and a second overlapping edge connected sequentially along the second direction; the first overlapping edge is connected to the outer panel, and the second overlapping edge is connected to the connecting section; the second direction intersects with the first direction.

[0008] Based on the above technical means, the reinforcing member adopts a regional overlapping design (the first overlapping edge connects to the outer panel, and the second overlapping edge connects to the inner panel connecting section). Through the cross layout of the second direction and the first direction, the force transmission path is optimized, stress concentration is dispersed, and the cavity isolation effect is ensured, thereby further improving the structural stability and NVH performance.

[0009] Furthermore, along the second direction, the connecting section protrudes beyond the second overlapping edge; at least a portion of the structure of the connecting section protruding beyond the second overlapping edge is used for connection with the top cover beam.

[0010] Based on the aforementioned technical means, the design of the connecting section protruding from the second overlapping edge provides an independent connection area for the top cover beam. This design eliminates the need for additional connectors on the top cover beam, simplifying the assembly process between the top cover beam and the connecting section by eliminating the need for additional connectors and the top cover beam / inner plate assembly. It also reduces the number of weld points at the overlap between the top cover beam and the connecting section, avoiding structural instability caused by weld failure and ensuring proper energy transfer during collisions. Furthermore, in some cases, structural components can be connected via weld points. This design also prevents the formation of multiple layers of weld points at the overlap between the top cover beam and the connecting section, such as four layers of weld points (outer plate, reinforcing plate, inner plate upper beam, and top cover beam), ensuring connection strength and reducing manufacturing complexity.

[0011] Furthermore, the first overlapping edge includes a first overlapping portion, the surface of the first overlapping portion facing the inner panel is a plane, and the first overlapping portion abuts against and connects with the inner panel.

[0012] Based on the aforementioned technical means, the first overlapping part adopts a planar-to-inner-panel connection, increasing the contact area, improving connection stability, and reducing vibration and noise caused by loose connections. Simultaneously, the planar structure facilitates welding or bonding processes. Furthermore, the planar-to-inner-panel connection of the first overlapping part facilitates adaptation to the installation requirements of panoramic sunroof models.

[0013] Furthermore, the first overlapping edge includes two folded portions, which are respectively connected to the two ends of the first overlapping portion along a third direction; along the first direction, the folded portions are folded towards the inner panel; the third direction intersects with the first direction and the second direction.

[0014] Based on the above technical means, the folded part folds inward towards the inner plate, forming a double-layer structure in the third direction, which enhances local rigidity and suppresses lateral deformation.

[0015] Furthermore, on the third side upwards, there is a gap between the folded section and the connecting section.

[0016] Based on the aforementioned technical means, a gap is set between the folded section and the connecting section to prevent the edges of the folded section from overlapping. When the connecting section is connected to the outer panel by weld points, this setting can prevent the generation of multiple weld points in this area, ensuring welding quality and reducing process difficulty. In addition, the gap design between the folded section and the connecting section provides deformation space for thermal expansion and contraction, preventing cracking or abnormal noise caused by stress concentration, while blocking the vibration transmission path and improving durability and NVH performance.

[0017] Furthermore, the connecting section includes a first plate portion and two second plate portions; the two second plate portions are respectively connected to both sides of the first plate portion along a third direction; the first plate portion is recessed along a first direction; the third direction intersects with the first direction and the second direction.

[0018] Based on the above technical means, the connecting section adopts a recessed first plate design to form a locally reinforced structure and improve bending stiffness; the second plates on both sides enhance lateral support and optimize the cavity shape to reduce acoustic resonance and lower in-vehicle noise.

[0019] Furthermore, the second overlapping edge includes a second overlapping portion and two third overlapping portions, the two third overlapping portions being respectively connected to both sides of the second overlapping portion along a third direction; at least a portion of the structure of the second overlapping portion abuts against and is connected to the first plate portion; at least a portion of the structure of the two third overlapping portions abuts against and is connected to the two second plate portions respectively.

[0020] Based on the above technical means, the second overlapping edge connects the first plate and the second plate in different areas to achieve multi-point support, distribute the load, improve the overall rigidity of the connecting section, ensure cavity isolation and the reliability of support, and avoid local deformation.

[0021] Furthermore, the first plate includes a first segment, a second segment, and a third segment connected sequentially along a third direction; along a first direction, the first segment, the second segment, and the third segment are arranged alternately.

[0022] Based on the above technical means, the first plate is designed with staggered segments to improve the bending stiffness of the connecting segments and further ensure the reliability of the joint between the support structure and the top cover beam.

[0023] Furthermore, the second overlapping portion includes at least two overlapping positions arranged sequentially along a third direction, the at least two overlapping positions respectively abutting against and connecting with at least two of the first segment, the second segment and the third segment.

[0024] Based on the above technical means, the second lap joint is connected to the first plate segment by multiple lap joints, so as to achieve precise positioning and uniform force distribution, avoid local stress concentration, and improve the reliability of connection.

[0025] Furthermore, the second overlapping edge also includes at least one raised portion, which is disposed on the second overlapping portion.

[0026] Based on the above technical means, the raised part forms a reinforcing rib, which increases the local stiffness and prevents the reinforcing part from deforming.

[0027] Furthermore, the second overlapping edge also includes at least one positioning hole.

[0028] Based on the above-mentioned technical means, the positioning holes simplify the assembly process and ensure the precise installation of the reinforcing components.

[0029] Furthermore, positioning holes are provided on the raised portion.

[0030] According to the above-mentioned technical means, the positioning holes are set on the raised portion. Utilizing the high rigidity of the raised portion, the positioning holes avoid weakening the structural strength and facilitate clamping and positioning by automated assembly equipment. Furthermore, since the positioning holes are located on the raised portion, they do not occupy the area of ​​the overlap, thus ensuring the connection strength between the overlap and the first plate.

[0031] Furthermore, the inner panel includes an inner panel body and an inner panel upper beam. Along the first direction, the inner panel upper beam is connected to the side of the inner panel body near the outer panel; the connecting section is provided on the inner panel upper beam.

[0032] Based on the above technical means, the upper beam of the inner panel is directly connected to the outer panel, optimizing the force transmission path, reducing the deformation of the side panel assembly, improving the torsional stiffness of the body, and reducing the intensity of the vibration source from the root.

[0033] Furthermore, the inner plate's upper beam also includes an upper beam body, which intersects with and connects to the connecting section; the upper beam body is welded to the outer plate.

[0034] Based on the above technical means, the upper beam body is welded to the outer plate to ensure the overall rigidity of the side assembly, suppress high-frequency vibration, and improve road noise and wind noise performance.

[0035] Furthermore, the outer panel includes an outer panel body and a reinforcing plate, with the reinforcing plate connecting the outer panel body and the upper beam of the inner panel.

[0036] Based on the above technical means, the outer plate reinforcement plate enhances local dent resistance and reduces deformation caused by external impact. At the same time, it works in synergy with the inner plate top beam to optimize the cavity acoustic characteristics and improve collision safety and NVH performance.

[0037] A vehicle body includes: a strut structure as described above; a roof crossbeam connected to a connecting section.

[0038] Based on the aforementioned technical means, the vehicle body, through the integrated and improved strut structure and roof crossbeam, blocks cavity connections at the source, significantly reducing interior noise and vibration, and improving the overall static stiffness and dynamic comfort of the vehicle. By increasing the overall rigidity of the area where the strut structure overlaps with the roof crossbeam, the vibration frequency of the roof crossbeam and the roof supported on it is reduced.

[0039] Furthermore, the top cover beam is integrally molded.

[0040] Based on the above-mentioned technical means, the top cover beam is designed as an integral piece, which reduces welding or connection points, simplifies the overall structure and processing technology, and also helps to reduce weight.

[0041] An automobile includes a strut structure as described above; or a body as described above.

[0042] Based on the aforementioned technical means, automobiles can comprehensively improve safety performance and NVH quality by adopting improved strut structures or body structures, thereby meeting consumers' demands for a high-quality driving experience and enhancing market competitiveness.

[0043] The beneficial effects of this invention are:

[0044] (1) The first cavity formed by the reinforcing component is isolated from the transverse cavity of the top cover beam, blocking the cavity connection path and effectively reducing the transmission path of vibration and noise, thereby significantly improving the NVH performance of the whole vehicle.

[0045] (2) In the first direction, the reinforcing member overlaps between the inner plate and the outer plate, which plays a supporting role and improves the overall rigidity of the area where the support structure overlaps with the top cover beam. At the same time, since the overall rigidity of the area where the support structure overlaps with the top cover beam is improved, the stability of the support for the top cover beam can be guaranteed, the vibration frequency of the top cover beam and the top cover supported on the top cover beam can be reduced, and the problem of the top cover beam mode not meeting the standard can be solved. Attached Figure Description

[0046] Figure 1 This is a partial structural diagram of the vehicle body of the present invention;

[0047] Figure 2 for Figure 1 Cross-sectional view at point AA;

[0048] Figure 3 This is an exploded view of the support structure of the present invention;

[0049] Figure 4 This is an assembly diagram of the support structure of the present invention;

[0050] Figure 5 for Figure 4 A magnified view of a section at point B in the middle;

[0051] Figure 6 This is a schematic diagram of the reinforcing member of the present invention;

[0052] Figure 7 This is a schematic diagram of the upper beam of the inner plate of the present invention.

[0053] The labels are as follows: 1-Inner plate; 10-First cavity; 11-Upper beam of inner plate; 111-Upper beam body; 112-Connecting section; 1121-First plate part; 1122-Second plate part; 1123-First section; 1124-Second section; 1125-Third section; 1126-Through hole; 2-Outer plate; 21-Outer plate body; 22-Reinforcing plate; 3-Reinforcing member; 31-First overlapping edge; 311-First overlapping part; 312-Folding part; 32-Second overlapping edge; 321-Second overlapping part; 322-Third overlapping part; 3221-Overlap position; 323-Raised part; 324-Positioning hole; 4-Top cover crossbeam; 5-Top cover; 6-First weld point; 7-Second weld point; Z-First direction; Y-Second direction; X-Third direction. Detailed Implementation

[0054] The embodiments of the present invention will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention and not for limiting the scope of protection of the present invention.

[0055] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0056] With the rapid development of automotive technology, consumers are paying increasing attention to vehicle safety and demanding higher NVH (noise, vibration, and harshness) performance. In traditional vehicle body structures, the roof beams supporting the roof typically overlap with the side assembly. In some technical solutions, the roof beams overlap with the side assembly struts. However, the existing overlap structure between the roof beams and struts is poorly designed, causing the transverse cavities formed within the roof beams to connect with the longitudinal cavities formed within the struts. This not only severely reduces the overall NVH performance of the vehicle but also further amplifies and enhances the transmission of road noise within the transverse cavities formed by the roof beams, resulting in substandard vibration of the roof in the roof beam area within a certain frequency range.

[0057] Based on this, the present invention proposes a pillar structure, a vehicle body, and an automobile to solve the above-mentioned technical problems.

[0058] On the one hand, this embodiment proposes a support structure for connecting with the top cover beam 4. Specifically, as shown... Figures 1-7 As shown, the support structure includes an inner plate 1, an outer plate 2, and a reinforcing member 3, arranged sequentially along a first direction Z. Specifically, along the first direction Z, the outer plate 2 is connected to the outside of the inner plate 1, forming a first cavity 10 between them. The reinforcing member 3 connects the outer plate 2 and the inner plate 1. Understandably, the inner plate 1 and the outer plate 2 are arranged sequentially along the first direction Z, and in one case, the first direction Z can be parallel to the height direction of the vehicle.

[0059] Furthermore, the inner panel 1 includes a connecting section 112 for connecting to the top cover beam 4. A reinforcing member 3 is connected between the outer panel 2 and the connecting section 112 to isolate the first cavity 10 from the top cover beam 4.

[0060] For example, the inner panel 1 and the outer panel 2 can be connected by welding, bonding, a composite molding process of welding and bonding, or integral molding, etc., preferably by welding. For example, the reinforcing member 3 and the outer panel 2, as well as the reinforcing member 3 and the connecting section 112, can be connected by welding, bonding, a composite molding process of welding and bonding, or integral molding, etc., preferably by welding.

[0061] Understandably, the roof crossbeam 4 supports the roof 5 and, along the longitudinal direction of the vehicle, includes a front roof crossbeam and a rear roof crossbeam. Exemplarily, the front roof crossbeam can be connected to the aforementioned support structure. In this case, the inner panel 1 can be the A-pillar inner panel, the roof crossbeam 4 can be the front roof crossbeam, and the A-pillar inner panel is provided with the aforementioned connecting section 112, which is used to connect to the front roof crossbeam. The outer panel 2 can be the A-pillar outer panel or the side panel outer panel. A reinforcing member 3 connects the outer panel 2 and the connecting section 112, and the reinforcing member 3 isolates the first cavity 10 and the transverse cavity formed by the front roof crossbeam. Exemplarily, the rear roof crossbeam can be connected to the aforementioned support structure. In this case, the inner panel 1 can be the D-pillar inner panel, the roof crossbeam 4 can be the rear roof crossbeam, and the D-pillar inner panel is provided with the aforementioned connecting section 112, which is used to connect to the rear roof crossbeam. The outer panel 2 can be the outer panel of the D-pillar or the outer panel of the side wall. The reinforcing member 3 is connected between the outer panel 2 and the connecting section 112. The reinforcing member 3 isolates the first cavity 10 and the transverse cavity formed by the rear beam of the top cover.

[0062] In this embodiment, by setting a reinforcing member 3 between the inner panel 1 and the outer panel 2, on the one hand, in the first direction Z, the reinforcing member 3 overlaps between the inner panel 1 and the outer panel, playing a supporting role and improving the overall rigidity of the overlap area between the support structure and the roof beam 4; at the same time, since the overall rigidity of the overlap area between the support structure and the roof beam 4 is improved, the stability of the support for the roof beam 4 can be guaranteed, the vibration frequency of the roof beam 4 and the roof 5 supported on the roof beam 4 can be reduced, and the problem of the roof beam 4 not meeting the modal standards can be solved. Based on the CAE (Computer-Aided Engineering) analysis and verification of a certain vehicle model, by setting the reinforcing member 3 in the overlap area between the A-pillar and the front roof beam, the VTF (Vibration Transfer Function) of the front roof beam on the left and right sides is reduced from 0.057mm / s and 0.064mm / s to 0.047mm / s and 0.049mm / s, respectively. Moreover, compared with the traditional structure, the overall weight of the A-pillar and the front roof beam is reduced, which is conducive to achieving structural lightweighting. In another direction, the reinforcing member 3 isolates the first cavity 10 formed by the support structure from the transverse cavity of the top cover beam 4, blocking the cavity connection path and effectively reducing the transmission path of vibration and noise, thereby significantly improving the NVH performance of the whole vehicle.

[0063] Furthermore, in some embodiments, the inner panel 1 includes an inner panel body (not shown in the figure) and an inner upper upper beam 11. Along the first direction Z, the inner upper upper upper beam 11 is connected to the side of the inner panel body closest to the outer panel 2, that is, the inner upper upper upper beam 11 connects the inner panel body and the outer panel 2. The aforementioned connecting segment 112 is disposed on the inner upper upper upper beam 11. In this embodiment, the inner upper upper upper beam 11 is directly connected to the outer panel 2, optimizing the force transmission path, reducing the deformation of the side panel assembly, improving the torsional stiffness of the vehicle body, and fundamentally reducing the intensity of the vibration source.

[0064] More specifically, such as Figure 7 As shown, the inner plate's upper beam 11 also includes an upper beam body 111, which intersects with and connects to the connecting section 112. Exemplarily, the upper beam body 111 and the connecting section 112 can be constructed together as a "T"-shaped structure. Exemplarily, the upper beam body 111 is welded to the outer plate 2. In this embodiment, the welding of the upper beam body 111 to the outer plate 2 ensures the overall rigidity of the side panel assembly, suppresses high-frequency vibration, and improves road noise and wind noise performance.

[0065] Understandably, in some embodiments, the inner plate 1 may also be constructed as an integral support structure, with the inner plate 1 directly connected to the outer plate 2 and the reinforcing member 3.

[0066] For example, inner panel 1 is an A-pillar inner panel, which may include an A-pillar inner panel body and an upper beam of the A-pillar inner panel. The upper beam of the A-pillar inner panel includes the aforementioned intersecting and connected upper beam body 111 and connecting segment 112. For example, inner panel 1 is a D-pillar inner panel, which may include a D-pillar inner panel body and a connecting segment 112 that intersects and connects with the D-pillar inner panel body.

[0067] Furthermore, in some embodiments, the outer panel 2 includes an outer panel body 21 and a reinforcing plate 22, with the reinforcing plate 22 connecting the outer panel body 21 and the inner panel upper beam 11. In this embodiment, the reinforcing plate 22 of the outer panel 2 enhances local dent resistance, reduces deformation caused by external impact, and works synergistically with the inner panel upper beam 11 to optimize the acoustic characteristics of the cavity, improving collision safety and NVH performance. For example, the inner panel 1 is the A-pillar inner panel, the outer panel body 21 can be the side panel body, and the reinforcing plate 22 can be a side panel mid-section reinforcement.

[0068] Specifically, in some embodiments, such as Figure 6 As shown, the reinforcing member 3 includes a first overlapping edge 31 and a second overlapping edge 32 connected sequentially along the second direction Y. The first overlapping edge 31 is connected to the outer plate 2, and the second overlapping edge 32 is connected to the connecting segment 112. The second direction Y intersects with the first direction Z. It can be understood that the second direction Y is the extension direction of the connecting segment 112, which is also the extension direction of the top cover beam 4. In some cases, the second direction Y can be perpendicular to the first direction Z. In this embodiment, the reinforcing member 3 adopts a regional overlapping design (the first overlapping edge 31 connects to the outer plate 2, and the second overlapping edge 32 connects to the connecting segment 112 of the inner plate 1). Through the intersecting layout of the second direction Y and the first direction Z, the force transmission path is optimized, stress concentration is dispersed, and the cavity isolation effect is ensured, further improving the structural stability and NVH performance.

[0069] Understandably, along the first direction Z, the inner panel 1 and the outer panel 2 are spaced apart at their ends near the top cover crossbeam 4, forming a first cavity 10 with an opening facing the top cover crossbeam 4. This is to allow the first overlapping edge 31 and the second overlapping edge 32 of the reinforcing member 3 to connect to the outer panel 2 and the inner panel 1, respectively. Exemplarily, along the first direction Z, the first overlapping edge 31 and the second overlapping edge 32 are staggered. When installed on a vehicle body, the height of the first overlapping edge 31 is higher than the height of the second overlapping edge 32. Exemplarily, as... Figure 2 As shown, along the first direction Z, the cross-sectional shape of the reinforcing member 3 is "Z" shaped.

[0070] Furthermore, in some embodiments, such as Figure 4 and Figure 5As shown, along the second direction Y, the connecting segment 112 protrudes from the second overlapping edge 32. At least a portion of the structure of the connecting segment 112 protruding from the second overlapping edge 32 is used for connection with the top cover beam 4. Figure 2 As shown, along the second direction Y, the second overlapping edge 32 and the top cover beam 4 are respectively connected to the opposite ends of the connecting section 112, and the second overlapping edge 32 and the top cover beam 4 are spaced apart. In this embodiment, the design of the connecting section 112 protruding from the second overlapping edge 32 provides an independent connection area for the top cover beam 4. With this configuration, the top cover beam 4 does not require additional connecting parts, which can eliminate the assembly steps of connecting parts with the top cover beam 4 and the inner plate 1, simplify the assembly process of the top cover beam 4 and the connecting section 112, and reduce the number of weld points at the overlap of the top cover beam 4 and the connecting section 112, avoiding structural instability caused by weld point failure and affecting the transmission of collision energy. At the same time, in some cases, the structural components can be connected by weld points. This configuration can also avoid the formation of multiple layers of weld points at the overlap of the top cover beam 4 and the connecting section 112, such as forming four layers of weld points for the outer plate body 21, the reinforcing plate 22, the inner plate upper beam 11, and the top cover beam 4, ensuring connection strength and reducing process difficulty.

[0071] Furthermore, in some embodiments, such as Figure 6 As shown, the first overlapping edge 31 includes a first overlapping portion 311. The surface of the first overlapping portion 311 facing the inner panel 1 is flat. The first overlapping portion 311 abuts against and connects with the inner panel 1. In this embodiment, the first overlapping portion 311 abuts against the inner panel 1 using a flat surface, increasing the contact area, improving connection stability, and reducing vibration and noise caused by loose connections. Simultaneously, the flat structure facilitates welding or bonding processes. Furthermore, the flat surface connection of the first overlapping portion 311 to the inner panel 1 facilitates adaptation to the installation requirements of panoramic sunroof models.

[0072] Furthermore, in some embodiments, the first overlapping edge 31 includes two folded portions 312, which are respectively connected to the two ends of the first overlapping portion 311 along the third direction X. Along the first direction Z, the folded portions 312 are folded towards the inner plate 1. The third direction X intersects the first direction Z and the second direction Y. It can be understood that the third direction X is the extension direction of the reinforcing member 3, that is, the extension direction of the inner plate 1 or the outer plate 2. In some cases, the third direction X is perpendicular to the first direction Z and the second direction Y. In this embodiment, the folded portions 312 fold towards the inner plate 1, forming a double-layer structure in the third direction X, enhancing local stiffness and suppressing lateral deformation.

[0073] Furthermore, in some embodiments, a gap exists between the folded portion 312 and the connecting segment 112 in the third direction X. In this embodiment, the gap between the folded portion 312 and the connecting segment 112 prevents the edges of the folded portion 312 and the connecting segment 112 from overlapping. When the connecting segment 112 is connected to the outer panel 2 by welding, this arrangement can prevent the generation of multiple welding points in this area, ensuring welding quality and reducing process difficulty. In addition, the gap design between the folded portion 312 and the connecting segment 112 provides deformation space for thermal expansion and contraction, preventing cracking or abnormal noise caused by stress concentration, while blocking the vibration transmission path and improving durability and NVH performance.

[0074] Furthermore, in some embodiments, such as Figure 7 As shown, the connecting segment 112 includes a first plate portion 1121 and two second plate portions 1122. The two second plate portions 1122 are respectively connected to both sides of the first plate portion 1121 along the third direction X. Along the first direction Z, the first plate portion 1121 is recessed. In this embodiment, the connecting segment 112 adopts a recessed first plate portion 1121 design to form a locally reinforced structure and improve bending stiffness; the two second plate portions 1122 on both sides enhance lateral support and optimize the cavity shape to reduce acoustic resonance and lower in-vehicle noise.

[0075] Accordingly, in some embodiments, such as Figure 6 As shown, the second overlapping edge 32 includes a second overlapping portion 321 and two third overlapping portions 322, which are respectively connected to both sides of the second overlapping portion 321 along the third direction X. Specifically, along the first direction Z, the second overlapping portion 321 is disposed opposite to the first plate portion 1121, and at least a portion of the structure of the second overlapping portion 321 abuts against and connects to the first plate portion 1121. Similarly, along the first direction Z, the two third overlapping portions 322 are respectively disposed opposite to the two second plate portions 1122, and at least a portion of the structure of the two third overlapping portions 322 abuts against and connects to the two second plate portions 1122. In this embodiment, the second overlapping edge 32 connects the first plate portion 1121 and the second plate portion 1122 in sections, achieving multi-point support, distributing load, improving the overall rigidity of the connecting section 112, ensuring cavity isolation and support reliability, and avoiding local deformation.

[0076] Furthermore, in some embodiments, such as Figure 7 As shown, the first plate portion 1121 includes a first segment 1123, a second segment 1124, and a third segment 1125 connected sequentially along a third direction X. Along a first direction Z, the first segment 1123, the second segment 1124, and the third segment 1125 are staggered. In this embodiment, the staggered segmented design of the first plate portion 1121 enhances the bending stiffness of the connecting segment 112, further ensuring the reliability of the joint between the support structure and the top cover beam 4.

[0077] Understandably, in some embodiments, the first segment 1123, the second segment 1124, and the third segment 1125 may also be located on the same plane, or at least two of the first segment 1123, the second segment 1124, and the third segment 1125 may be located on the same plane.

[0078] Accordingly, in some embodiments, such as Figure 6 As shown, the second overlapping portion 321 includes at least two overlapping positions 3221 arranged sequentially along a third direction X. Each of the at least two overlapping positions 3221 abuts against and connects to at least two of the first segment 1123, the second segment 1124, and the third segment 1125. For example, the second overlapping portion 321 includes two overlapping positions 3221 spaced apart along a third direction X, with each overlapping position 3221 abutting against and connecting to the second segment 1124 and the third segment 1125. It is understood that the second overlapping portion 321 may also have three, four, five, or other numbers of overlapping positions 3221, as long as the connection function with the second plate portion 1122 can be achieved. In this embodiment, the second overlapping portion 321 is segmentally connected to the first plate portion 1121 through multiple overlapping positions 3221, achieving precise positioning and uniform force distribution, avoiding local stress concentration, and improving connection reliability.

[0079] Furthermore, in some embodiments, such as Figure 6 As shown, the second overlapping edge 32 further includes at least one raised portion 323, which is disposed on the second overlapping portion 321. In this embodiment, the raised portion 323 forms a reinforcing rib, increasing local rigidity and preventing deformation of the reinforcing member 3. For example, as... Figure 6 As shown, three raised portions 323 can be provided, and the second overlapping portion 321 has two overlapping positions 3221. For ease of description, the two overlapping positions 3221 are defined as the first overlapping position 3221 and the second overlapping position 3221, respectively. The three raised portions 323 are located between the first overlapping portion 311 and the first overlapping position 3221, between the first overlapping position 3221 and the second overlapping position 3221, and between the second overlapping position 3221 and the first overlapping portion 311, respectively. It can be understood that one, two, four, five, or other numbers of raised portions 323 can also be provided, as long as the function of local structural reinforcement can be achieved.

[0080] Furthermore, in some embodiments, such as Figure 6 As shown, the second overlapping edge 32 also includes at least one positioning hole 324. During assembly, the positioning structure of the assembly equipment can be inserted into the positioning hole 324 to install and position the reinforcing member 3. The positioning hole 324 simplifies the assembly process and ensures accurate installation of the reinforcing member 3.

[0081] The positioning hole 324 can be provided on the first overlapping part 311 or the second overlapping part 321. The positioning hole 324 can be provided in one, two, three or other quantities, preferably two, so as to satisfy the positioning function while avoiding excessive occupation of the space of the reinforcing member 3 and ensuring the rigidity of the reinforcing member 3.

[0082] Preferably, in some embodiments, such as Figure 6 As shown, the positioning hole 324 can be provided on the raised portion 323. In this embodiment, the positioning hole 324 is provided on the raised portion 323. Utilizing the high rigidity of the raised portion 323, the positioning hole 324 avoids weakening the structural strength and facilitates clamping and positioning by automated assembly equipment. Furthermore, since the positioning hole 324 is provided on the raised portion 323, it does not occupy the area of ​​the overlapping position 3221, which helps to ensure the connection strength between the overlapping position 3221 and the first plate portion 1121.

[0083] Furthermore, in some embodiments, such as Figure 7 As shown, the inner plate 1 may also be provided with at least one through hole 1126, more specifically, the upper beam 11 of the inner plate may be provided with at least one through hole 1126, to provide a welding channel for the outer plate body 21, the reinforcing plate 22, the upper beam body 111 and the reinforcing member 3, facilitating assembly. Exemplarily, the upper beam 11 of the inner plate may be provided with two through holes 1126, which are spaced apart on the connecting section 112, more specifically, the two through holes 1126 are spaced apart along a third direction X, and both are located near the connection between the connecting section 112 and the second overlapping edge 32. It is understood that the inner plate 1 may also be provided with one, three, four or other numbers of through holes 1126, preferably two, to meet welding requirements while avoiding excessive occupation of the space of the inner plate 1, thus ensuring the structural strength of the inner plate 1.

[0084] For example, the upper beam 11 of the inner plate can be integrally formed, such as by using a high-strength steel plate integrally formed by stamping process.

[0085] For example, the reinforcing member 3 can be integrally formed, such as by die casting of aluminum alloy or by stamping.

[0086] For example, such as Figure 5As shown, at least one first weld point 6 is provided between the outer plate 2 and the reinforcing member 3, more specifically between the reinforcing plate 22 and the reinforcing member 3. The first weld point 6 consists of two layers of weld points connecting the reinforcing plate 22 and the reinforcing member 3. The first weld point 6 is used to achieve pre-welding fixation between the outer plate 2 and the reinforcing member 3, ensuring assembly accuracy. It can be understood that there can be one, two, three, or other numbers of first weld points 6, as long as the pre-welding fixation function of the reinforcing plate 22 and the reinforcing member 3 can be achieved. Preferably, there is one first weld point 6, which simplifies the assembly process while satisfying the pre-welding fixation function.

[0087] For example, such as Figure 5 As shown, at least two second weld points 7 are provided between the inner plate 1, the outer plate 2, and the reinforcing member 3, and more specifically, between the upper beam 11 of the inner plate, the reinforcing plate 22, and the reinforcing member 3. The second weld points 7 are three-layer weld points connecting the upper beam 11 of the inner plate, the reinforcing plate 22, and the reinforcing member 3. The second weld points 7 are used to fix the upper beam 11 of the inner plate, the reinforcing plate 22, and the reinforcing member 3. Exemplarily, there can be two, three, four, five, or other numbers of second weld points 7, as long as the function of fixing the three components can be achieved.

[0088] During assembly, the reinforcing member 3 is first assembled and welded to the reinforcing plate 22 to form the first weld point 6; then the inner plate upper beam 11 is fastened to the reinforcing plate 22 from the inside to form the first cavity 10; finally, the inner plate upper beam 11, the reinforcing plate 22 and the reinforcing member 3 are welded to form the second weld point 7.

[0089] On the other hand, this embodiment proposes a vehicle body including: a strut structure as described above and a roof crossbeam 4, the roof crossbeam 4 being connected to a connecting section 112. In this embodiment, the vehicle body, by integrating the improved strut structure and roof crossbeam 4, blocks cavity communication at the source, significantly reducing in-vehicle noise and vibration, and improving the overall static stiffness and dynamic comfort of the vehicle. By increasing the overall rigidity of the area where the strut structure overlaps with the roof crossbeam 4, the vibration frequency of the roof crossbeam 4 and the roof 5 supported on the roof crossbeam 4 is reduced.

[0090] For example, the end of the top cover beam 4 is provided with a connector, and the top cover beam 4 is connected to the connecting section 112 through the connector.

[0091] For example, the top cover beam 4 is integrally formed and is connected to the connecting section 112 through its own end structure to reduce welding or connection points, which helps to simplify the overall structure and processing technology, and also helps to reduce weight.

[0092] The top cover beam 4 and the connecting section 112 can be connected by methods such as bonding, welding, or a combination of bonding and welding.

[0093] For example, such as Figure 1and Figure 2 As shown, the vehicle body also includes a roof 5, which is connected to the top of the roof beam 4. The roof beam 4 and the roof 5 form the aforementioned transverse cavity. The aforementioned reinforcing member 3 isolates the transverse cavity from the aforementioned first cavity 10 to improve safety performance and NVH quality.

[0094] For example, the support structure can be provided in two sets along the second direction Y, and the connecting section 112 of the two sets of support structures is respectively connected to both ends of the top cover beam 4.

[0095] For example, the top cover crossbeam 4 can be either the front crossbeam or the rear crossbeam of the top cover.

[0096] Furthermore, this embodiment proposes a vehicle including the strut structure as described above; or the body as described above. In this embodiment, by adopting an improved strut structure or body, the vehicle comprehensively enhances safety performance and NVH quality, meets consumers' demands for a high-quality driving experience, and strengthens its market competitiveness.

[0097] This invention does not specifically limit the type of vehicle; it can be a new energy vehicle, a fuel vehicle, a natural gas vehicle, etc., as long as the strut structure or body of this invention is applied.

[0098] The strut structure, body, and automobile of this invention improve the overall NVH performance of the vehicle, and enhance the structural strength and stability of the joint between the roof beam 4 and the strut structure, thereby reducing the vibration frequency of the roof 5 in the area of ​​the roof beam 4. Furthermore, the strut structure of this invention is simple in structure, lightweight, easy to manufacture, and has a wide range of applications.

[0099] The above embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention.

Claims

1. A support structure for connection with a top cover beam (4), characterized in that, include: The inner plate (1) includes a connecting section (112); the connecting section (112) is used to connect with the top cover beam (4), the connecting section (112) includes a first plate portion (1121) and two second plate portions (1122), the two second plate portions (1122) are respectively connected to the two sides of the first plate portion (1121) along the third direction (X), and the first plate portion (1121) is recessed along the first direction (Z); The outer plate (2) is connected to the outer side of the inner plate (1) along the first direction (Z) and forms a first cavity (10) between the outer plate (2) and the inner plate (1). A reinforcing member (3) is connected between the outer plate (2) and the connecting section (112) to isolate the first cavity (10) from the top cover beam (4). The reinforcing member (3) includes a first overlapping edge (31) and a second overlapping edge (32) connected sequentially along the second direction (Y). The first overlapping edge (31) is connected to the outer plate (2), and the second overlapping edge (32) is connected to the connecting section (112). The second overlapping edge (32) includes a second overlapping portion (321) and two third overlapping portions (322). The two third overlapping portions (322) are respectively connected to both sides of the second overlapping portion (321) along the third direction (X). At least a portion of the structure of the second overlapping portion (321) abuts against and connects to the first plate portion (1121), and at least a portion of the structure of the two third overlapping portions (322) abuts against and connects to the two second plate portions (1122). The first direction (Z), the second direction (Y), and the third direction (X) intersect each other.

2. The support structure according to claim 1, characterized in that: Along the second direction (Y), the connecting segment (112) protrudes from the second overlapping edge (32); at least a portion of the structure of the connecting segment (112) protruding from the second overlapping edge (32) is used to connect with the top cover beam (4).

3. The support structure according to claim 1, characterized in that: The first overlapping edge (31) includes a first overlapping portion (311), the surface of the first overlapping portion (311) facing the inner plate (1) is a plane, and the first overlapping portion (311) abuts against and connects with the inner plate (1).

4. The support structure according to claim 3, characterized in that: The first overlapping edge (31) includes two folded portions (312), which are respectively connected to the two ends of the first overlapping portion (311) along the third direction (X); along the first direction (Z), the folded portions (312) are folded towards the inner plate (1); The third direction (X) intersects with the first direction (Z) and the second direction (Y).

5. The support structure according to claim 4, characterized in that: On the third direction (X), there is a gap between the folded portion (312) and the connecting segment (112).

6. The support structure according to claim 1, characterized in that: The first plate portion (1121) includes a first segment (1123), a second segment (1124) and a third segment (1125) connected sequentially along the third direction (X); along the first direction (Z), the first segment (1123), the second segment (1124) and the third segment (1125) are arranged alternately.

7. The support structure according to claim 6, characterized in that: The second overlapping portion (321) includes at least two overlapping positions (3221) arranged sequentially along the third direction (X), the at least two overlapping positions (3221) abutting and connecting with at least two of the first segment (1123), the second segment (1124) and the third segment (1125).

8. The support structure according to claim 1, characterized in that: The second overlapping edge (32) further includes at least one raised portion (323), which is disposed on the second overlapping portion (321).

9. The support structure according to claim 8, characterized in that: The second overlapping edge (32) also includes at least one positioning hole (324).

10. The support structure according to claim 9, characterized in that: The positioning hole (324) is provided on the raised portion (323).

11. The support structure according to any one of claims 1-9, characterized in that: The inner plate (1) includes an inner plate (1) body and an inner plate upper beam (11). Along the first direction (Z), the inner plate upper beam (11) is connected to the side of the inner plate (1) body near the outer plate (2); the connecting section (112) is disposed on the inner plate upper beam (11).

12. The support structure according to claim 11, characterized in that: The inner plate upper beam (11) also includes an upper beam body (111), which intersects and connects with the connecting section (112); the upper beam body (111) is welded to the outer plate (2).

13. The support structure according to claim 11, characterized in that: The outer plate (2) includes an outer plate body (21) and a reinforcing plate (22), the reinforcing plate (22) being connected between the outer plate body (21) and the upper beam (11) of the inner plate.

14. A vehicle body, characterized in that, include: The pillar structure as described in any one of claims 1-13; Top cover beam (4), which is connected to the connecting section (112).

15. The vehicle body according to claim 14, characterized in that: The top cover beam (4) is integrally formed.

16. A car, characterized in that: Includes the strut structure as described in any one of claims 1-13; or the vehicle body as described in claim 14 or 15.

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