Pillar structure, automobile body and automobile

Abstract

The invention relates to the technical field of automobile bodies, and particularly discloses a supporting column structure, an automobile body and an automobile. The supporting column structure is used for being connected with a top cover cross beam and comprises an inner plate and an outer plate, the connecting section is used for being connected with a top cover beam. The outer plate is connected to the outer side of the inner plate in the first direction, and a first cavity is formed between the outer plate and the inner plate; and the reinforcing piece is connected between the outer plate and the connecting section so as to isolate the first cavity from the top cover cross beam. According to the supporting column structure, the automobile body and the automobile, the first cavity formed by the supporting column structure is isolated from the transverse cavity of the top cover cross beam through the reinforcing part, a cavity communication path is blocked, the transmission path of vibration and noise is effectively reduced, and therefore the NVH performance of the whole automobile is remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile bodies, and in particular to a pillar structure, a body and an automobile. Background Art

[0002] With the rapid development of automotive technology, consumers are placing increasing emphasis on vehicle safety and demanding higher NVH performance. In traditional vehicle body structures, the roof crossbeam supporting the vehicle's roof typically overlaps the side panel assembly. In some technical solutions, the roof crossbeam overlaps the side panel assembly's pillars. However, the existing overlap structure between the roof crossbeam and the pillars is not designed properly, resulting in the transverse cavity formed within the roof crossbeam connecting to the longitudinal cavity formed within the pillars, severely degrading the NVH performance of the vehicle. Summary of the Invention

[0003] One of the purposes of the present invention is to provide a pillar structure to solve the problem of unreasonable overlapping structure setting between the roof crossbeam and the pillar in the prior art, thereby reducing the NVH (Noise Vibration Harshness) performance of the entire vehicle; the second purpose is to provide a vehicle body; and the third purpose is to provide a car.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0005] A pillar structure for connecting to a roof crossbeam comprises: an inner plate including a connecting section; the connecting section is used to connect to the roof crossbeam; 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 reinforcement connected between the outer plate and the connecting section to isolate the first cavity from the roof crossbeam.

[0006] According to the above technical approach, by providing a reinforcement between the inner and outer panels, on the one hand, in a first direction, the reinforcement overlaps between the inner panel and the outer panel, providing support and improving the overall rigidity of the pillar structure in the area where it overlaps the roof crossbeam. Simultaneously, by increasing the overall rigidity of the pillar structure in the area where it overlaps the roof crossbeam, the stability of the support for the roof crossbeam is ensured, reducing the vibration frequency of the roof crossbeam and the roof supported on it, and resolving the issue of substandard roof crossbeam modal characteristics. Furthermore, the reinforcement isolates the first cavity formed by the pillar structure from the lateral cavity of the roof crossbeam, blocking the path connecting the cavities and effectively reducing the transmission path of vibration and noise, thereby significantly improving the NVH performance of the vehicle.

[0007] Furthermore, the reinforcement includes a first overlapping edge and a second overlapping edge connected in sequence along the second direction; the first overlapping edge is connected to the outer plate, and the second overlapping edge is connected to the connecting section; the second direction intersects with the first direction.

[0008] Based on the above-mentioned technical means, the reinforcement adopts a zoned overlap design (the first overlap edge connects the outer panel, and the second overlap edge connects the inner panel connection 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 at the same time, further improving the structural stability and NVH performance.

[0009] Furthermore, along the second direction, the connecting section protrudes from the second overlapping edge; at least a portion of the connecting section protruding from the second overlapping edge is used to connect with the roof crossbeam.

[0010] According to the above technical means, the design of the connecting section protruding from the second overlapping edge provides an independent connection area for the roof crossbeam. With this arrangement, the roof crossbeam does not need to be equipped with additional connecting parts, which can not only save the assembly steps of the connecting parts with the roof crossbeam and the inner panel, simplify the assembly process of the roof crossbeam and the connecting section, but also reduce the number of welds at the overlap of the roof crossbeam and the connecting section, avoiding structural instability caused by weld failure, affecting collision energy transfer and other problems. At the same time, in some cases, the various structural parts can be connected through welds. Such an arrangement can also avoid the formation of multiple layers of welds at the overlap of the roof crossbeam and the connecting section, such as forming four layers of welds for the outer panel body, the reinforcement plate, the inner panel upper beam, and the roof crossbeam, ensuring the connection strength and reducing the difficulty of the process.

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

[0012] The above-mentioned technical approach utilizes a flat surface on the first overlapped portion, which abuts against the inner panel. This increases the contact area, improves connection stability, and reduces vibration and noise caused by loose connections. Furthermore, the flat structure facilitates welding or bonding. Furthermore, the flat surface on the first overlapped portion abuts against the inner panel, making it suitable for installation on canopy models.

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

[0014] According to the above technical means, the folded portion is folded toward the inner panel to form a double-layer structure in the third direction, thereby enhancing local rigidity and suppressing lateral deformation.

[0015] Furthermore, in the third direction, there is a gap between the folded portion and the connecting section.

[0016] The aforementioned technical approach creates a gap between the fold and the connecting section, preventing overlap between their edges. When the connecting section is welded to the outer panel, this arrangement avoids the formation of multiple welds in this area, ensuring weld quality and reducing process complexity. Furthermore, the gap between the fold and the connecting section provides space for thermal expansion and contraction, preventing stress concentration-induced cracking or abnormal noise. It also blocks vibration transmission paths, 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 the third direction; the first plate portion is recessed along the first direction; the third direction intersects with the first direction and the second direction.

[0018] According to the above technical means, the connecting section adopts a concave first plate design to form a local reinforcement structure to improve bending rigidity; the second plates on both sides enhance lateral support and optimize the cavity shape to reduce acoustic resonance and reduce noise inside the vehicle.

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

[0020] According to the above technical means, the second overlapping edge connects the first plate portion and the second plate portion in different areas, realizing multi-point support, distributing the load, improving the overall stiffness of the connection section, ensuring cavity isolation and support reliability, and avoiding local deformation.

[0021] Furthermore, the first plate portion includes a first section, a second section and a third section sequentially connected along the third direction; along the first direction, the first section, the second section and the third section are staggered.

[0022] According to the above technical means, the first plate sections are staggered to improve the bending stiffness of the connecting section, further ensuring the reliability of the joint between the pillar structure and the roof beam.

[0023] Furthermore, the second overlapping portion includes at least two overlapping positions sequentially arranged along the third direction, and the at least two overlapping positions are respectively opposed to and connected to at least two of the first section, the second section and the third section.

[0024] According to the above technical means, the second overlapping portion is connected to the first plate segment through multiple overlapping positions, achieving precise positioning and uniform force, avoiding local stress concentration, and improving connection reliability.

[0025] Furthermore, the second overlapping edge further includes at least one raised portion, and the raised portion is arranged on the second overlapping portion.

[0026] According to the above technical means, the raised portion forms a reinforcing rib, which increases the local rigidity and prevents the reinforcement from deforming.

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

[0028] According to the above technical means, the positioning holes simplify the assembly process and ensure the precise installation of the reinforcement.

[0029] Furthermore, the positioning hole is provided on the raised portion.

[0030] According to the above technical approach, the positioning holes are provided on the raised portion, utilizing the raised portion's high rigidity to avoid weakening the structural strength caused by the positioning holes, while also facilitating clamping and positioning by automated assembly equipment. Furthermore, the positioning holes are provided on the raised portion without occupying the area of the overlapped portion, thus ensuring the connection strength between the overlapped portion and the first plate portion.

[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 a side of the inner panel body close to the outer panel; the connecting section is arranged on the inner panel upper beam.

[0032] According to the above technical means, the upper beam of the inner panel is directly connected to the outer panel, which optimizes the force transmission path, reduces the deformation of the side panel assembly, improves the torsional stiffness of the vehicle body, and reduces the intensity of the vibration source from the root.

[0033] Furthermore, the inner panel upper side beam further includes an upper side beam body, which intersects and is connected to the connecting section; and the upper side beam body is welded to the outer panel.

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

[0035] Furthermore, the outer panel includes an outer panel body and a reinforcement panel, and the reinforcement panel is connected between the outer panel body and the inner panel upper side beam.

[0036] According to the above technical means, the outer panel reinforcement plate enhances local dent resistance and reduces deformation caused by external force impact. At the same time, it works synergistically with the upper side beam of the inner panel to optimize the cavity acoustic characteristics and improve collision safety and NVH performance.

[0037] A vehicle body comprises: the pillar structure as described above; and a roof crossbeam connected to a connecting section.

[0038] The aforementioned technical approach integrates an improved pillar structure and roof crossbeam into the vehicle body, effectively blocking any cavities from communicating at the source. This significantly reduces interior noise and vibration, improving both the static stiffness and dynamic comfort of the vehicle. By increasing the overall rigidity of the pillar structure's junction with the roof crossbeam, the vibration frequency of the roof crossbeam and the roof supported on it is reduced.

[0039] Furthermore, the top cover crossbeam is integrally formed.

[0040] According to the above technical means, the roof crossbeam is designed to be one-piece, which reduces welding or connection points, is conducive to simplifying the overall structure and processing technology, and is conducive to lightweighting.

[0041] An automobile comprises the pillar structure as described above; or the vehicle body as described above.

[0042] Based on the above technical means, automobiles can comprehensively improve safety performance and NVH quality by adopting improved pillar structures or bodies, meet consumers' demand for high-quality driving experience, and enhance market competitiveness.

[0043] Beneficial effects of the present invention:

[0044] (1) The reinforcement isolates the first cavity formed by the pillar structure from the transverse cavity of the roof crossbeam, blocking the cavity communication path, effectively reducing the transmission path of vibration and noise, and thus significantly improving the NVH performance of the vehicle;

[0045] (2) In the first direction, the reinforcement is overlapped between the inner plate and the outer plate, playing a supporting role, thereby improving the overall rigidity of the overlapping area between the pillar structure and the roof crossbeam; at the same time, since the overall rigidity of the overlapping area between the pillar structure and the roof crossbeam is improved, the stability of the support for the roof crossbeam can be ensured, the vibration frequency of the roof crossbeam and the roof supported on the roof crossbeam can be reduced, and the problem of the roof crossbeam modal not meeting the standard can be solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 It is a schematic diagram of the partial structure of the vehicle body of the present invention;

[0047] Figure 2 for Figure 1 Section view at AA in the middle;

[0048] Figure 3 An exploded view of the pillar structure of the present invention;

[0049] Figure 4 It is a schematic diagram of the assembly of the pillar structure of the present invention;

[0050] Figure 5 for Figure 4 A partial enlarged view of point B in the middle;

[0051] Figure 6 is a schematic structural diagram of a reinforcement member of the present invention;

[0052] Figure 7 It is a structural schematic diagram of the inner panel upper beam of the present invention.

[0053] Among them, the numbers are: 1-inner plate; 10-first cavity; 11-inner plate upper side beam; 111-upper side 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-reinforcement plate; 3-reinforcement member; 31-first lap edge; 311-first lap part; 312-folding part; 32-second lap edge; 321-second lap part; 322-third lap part; 3221-lap position; 323-raised part; 324-positioning hole; 4-top cover crossbeam; 5-top cover; 6-first welding point; 7-second welding point; Z-first direction; Y-second direction; X-third direction. DETAILED DESCRIPTION

[0054] The following describes the embodiments of the present invention with reference to the accompanying drawings and preferred embodiments. Those skilled in the art will readily appreciate the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the various details in this specification may be modified or altered based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are intended only to illustrate the present invention and are not intended to limit the scope of protection of the present invention.

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

[0056] With the rapid development of automobile technology, consumers are paying more and more attention to automobile safety performance and have higher and higher requirements for automobile NVH performance quality. In traditional vehicle body structures, the roof crossbeam used to support the vehicle roof is usually overlapped with the side panel assembly. In some technical solutions, the roof crossbeam is overlapped with the pillars of the side panel assembly. However, the existing overlap structure of the roof crossbeam and the pillar is not set reasonably, resulting in the transverse cavity formed in the roof crossbeam being connected with the longitudinal cavity formed in the pillar. This not only seriously reduces the NVH performance of the entire vehicle, but also further expands and enhances the transmission effect of road noise in the transverse cavity formed by the roof crossbeam, resulting in the roof in the roof crossbeam area vibrating substandard within a certain frequency range.

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

[0058] On the one hand, this embodiment provides a support structure, which is used to connect with the roof crossbeam 4. Specifically, Figure 1-Figure 7 As shown, the pillar structure includes an inner panel 1, an outer panel 2, and a reinforcement 3. The inner panel 1, reinforcement 3, and outer panel 2 are arranged sequentially along a first direction Z. Specifically, along the first direction Z, the outer panel 2 is connected to the outer side of the inner panel 1, forming a first cavity 10 between the outer panel 2 and the inner panel 1. The reinforcement 3 is connected between the outer panel 2 and the inner panel 1. It will be understood that the inner panel 1 and the outer panel 2 are arranged sequentially along the first direction Z. In one embodiment, the first direction Z can be parallel to the height of the vehicle.

[0059] Furthermore, the inner panel 1 includes a connecting section 112 for connecting to the roof crossbeam 4. The reinforcement 3 is connected between the outer panel 2 and the connecting section 112 to isolate the first cavity 10 from the roof crossbeam 4.

[0060] For example, the inner panel 1 and the outer panel 2 can be connected by welding, bonding, a combined forming process of welding and bonding, or integral molding, preferably welding. For example, the reinforcement 3 and the outer panel 2, and the reinforcement 3 and the connecting section 112 can be connected by welding, bonding, a combined forming process of welding and bonding, or integral molding, preferably welding.

[0061] As can be understood, the roof cross member 4 is used to support the roof 5 and, along the front-to-back direction of the vehicle, includes a front roof cross member and a rear roof cross member. For example, the front roof cross member can be connected to the aforementioned pillar structure. In this case, the inner panel 1 can be an A-pillar inner panel, and the roof cross member 4 can be a front roof cross member. The A-pillar inner panel is provided with the aforementioned connecting section 112, which is used to connect to the front roof cross member. The outer panel 2 can be an A-pillar outer panel or a side panel. The reinforcement 3 is connected between the outer panel 2 and the connecting section 112, and the reinforcement 3 separates the first cavity 10 from the transverse cavity formed by the front roof cross member. For example, the rear roof cross member can be connected to the aforementioned pillar structure. In this case, the inner panel 1 can be a D-pillar inner panel, and the roof cross member 4 can be a rear roof cross member. The D-pillar inner panel is provided with the aforementioned connecting section 112, which is used to connect to the rear roof cross member. The outer panel 2 may be a D-pillar outer panel or a side panel. The reinforcement 3 is connected between the outer panel 2 and the connecting section 112 . The reinforcement 3 isolates the first cavity 10 from the transverse cavity formed by the rear crossbeam of the roof.

[0062] In this embodiment, a reinforcement member 3 is provided between the inner panel 1 and the outer panel 2. In a first direction Z, the reinforcement member 3 overlaps the inner panel 1 and the exterior, providing support and improving the overall rigidity of the pillar structure in the overlap region with the roof crossbeam 4. Furthermore, the improved rigidity of the pillar structure in the overlap region with the roof crossbeam 4 ensures the stability of the support for the roof crossbeam 4, reduces the vibration frequency of the roof crossbeam 4 and the roof 5 supported on it, and resolves the issue of substandard modal response of the roof crossbeam 4. Based on CAE (Computer Aided Engineering) analysis and verification of a specific vehicle model, the provision of the reinforcement member 3 in the overlap region between the A-pillar and the front roof crossbeam reduced the left and right Vibration Transfer Function (VTF) of the front roof crossbeam from 0.057 mm / s and 0.064 mm / s to 0.047 mm / s and 0.049 mm / s, respectively. Furthermore, compared to conventional structures, the overall weight of the A-pillar and the front roof crossbeam is reduced, contributing to a lightweight structure. On the other hand, the reinforcement 3 isolates the first cavity 10 formed by the pillar structure from the transverse cavity of the roof crossbeam 4, blocking the cavity communication path, effectively reducing the transmission path of vibration and noise, and thus significantly improving the NVH performance of the entire vehicle.

[0063] Furthermore, in some embodiments, the inner panel 1 includes an inner panel body (not shown) and an inner panel side rail 11. Along a first direction Z, the inner panel side rail 11 is connected to a side of the inner panel body proximate to the outer panel 2. That is, the inner panel side rail 11 is connected between the inner panel body and the outer panel 2. The connecting section 112 is provided on the inner panel side rail 11. In this embodiment, the inner panel side rail 11 is directly connected to the outer panel 2, optimizing the force transmission path, reducing deformation of the side panel assembly, improving the torsional rigidity of the vehicle body, and fundamentally reducing the intensity of the vibration source.

[0064] More specifically, if Figure 7 As shown, the inner panel upper side beam 11 further includes an upper side beam body 111, which intersects and connects with a connecting section 112. For example, the upper side beam body 111 and the connecting section 112 can be constructed together into a "T"-shaped structure. For example, the upper side beam body 111 is welded to the outer panel 2. In this embodiment, the upper side beam body 111 is welded to the outer panel 2 to ensure the overall rigidity of the side panel assembly, suppress high-frequency vibrations, and improve road noise and wind noise performance.

[0065] It can be understood that in some embodiments, the inner panel 1 can also be constructed as an integrated support structure, and the inner panel 1 is directly connected to the outer panel 2 and the reinforcement 3.

[0066] Exemplarily, the inner panel 1 is an A-pillar inner panel, which may include an A-pillar inner panel body and an A-pillar inner panel upper side rail, wherein the A-pillar inner panel upper side rail includes the above-mentioned intersecting and connected upper side rail body 111 and connecting section 112. Exemplarily, the inner panel 1 is a D-pillar inner panel, which may include a D-pillar inner panel body and a connecting section 112 intersecting and connected to the D-pillar inner panel body.

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

[0068] Specifically, in some embodiments, Figure 6 As shown, the reinforcement 3 includes a first overlapping edge 31 and a second overlapping edge 32 connected in sequence along the second direction Y. The first overlapping edge 31 is connected to the outer panel 2, and the second overlapping edge 32 is connected to the connecting section 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 section 112, that is, the extension direction of the top cover crossbeam 4. In some cases, the second direction Y can be perpendicular to the first direction Z. In this embodiment, the reinforcement 3 adopts a zoned overlapping design (the first overlapping edge 31 is connected to the outer panel 2, and the second overlapping edge 32 is connected to the connecting section 112 of the inner panel 1). Through the cross layout of the second direction Y and the first direction Z, the force transmission path is optimized, the stress concentration is dispersed, and the cavity isolation effect is ensured at the same time, thereby further improving the structural stability and NVH performance.

[0069] It can be understood that, along the first direction Z, the inner panel 1 and the outer panel 2 are spaced apart at one end close to the roof crossbeam 4, and form a first cavity 10 with an opening, and the opening of the first cavity 10 faces the roof crossbeam 4. In order to realize the connection between the first lap edge 31 and the second lap edge 32 of the reinforcement 3 and the outer panel 2 and the inner panel 1 respectively. Exemplarily, along the first direction Z, the first lap edge 31 and the second lap edge 32 are staggered. When installed on the vehicle body, the setting height of the first lap edge 31 is higher than the setting height of the second lap edge 32. Exemplarily, as Figure 2 As shown, along the first direction Z, the cross-section of the reinforcement 3 is in a “Z” shape.

[0070] Furthermore, in some embodiments, Figure 4 and Figure 5As shown, along the second direction Y, the connecting section 112 protrudes from the second overlapping edge 32. At least a portion of the connecting section 112 protruding from the second overlapping edge 32 is used to connect to the roof crossbeam 4. Figure 2 As shown, along the second direction Y, the second overlapping edge 32 and the roof crossbeam 4 are respectively connected to the opposite ends of the connecting section 112, and the second overlapping edge 32 and the roof crossbeam 4 are spaced apart. In this embodiment, the connecting section 112 protrudes from the second overlapping edge 32, providing an independent connection area for the roof crossbeam 4. With this arrangement, the roof crossbeam 4 does not need to be equipped with additional connectors. This not only eliminates the need to assemble the connectors with the roof crossbeam 4 and the inner panel 1, simplifying the assembly process of the roof crossbeam 4 and the connecting section 112, but also reduces the number of welds at the overlap between the roof crossbeam 4 and the connecting section 112, avoiding structural instability caused by weld failure, which affects the transmission of collision energy, and other problems. At the same time, in some cases, the various structural components can be connected through welds. Such an arrangement can also avoid the formation of multiple layers of welds at the overlap between the roof crossbeam 4 and the connecting section 112, such as forming four layers of welds at the outer panel body 21, the reinforcing plate 22, the inner panel upper beam 11, and the roof crossbeam 4, ensuring connection strength and reducing process difficulty.

[0071] Furthermore, in some embodiments, 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, and the first overlapping portion 311 abuts and connects with the inner panel 1. In this embodiment, the first overlapping portion 311 is flat and abuts against the inner panel 1, increasing the contact area, improving connection stability, and reducing vibration and noise caused by loose connections. The flat structure also facilitates welding or bonding processes. Furthermore, the first overlapping portion 311's flat abutment against the inner panel 1 facilitates installation requirements for canopy models.

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

[0073] Furthermore, in some embodiments, a gap is provided between the folded portion 312 and the connecting section 112 in the third direction X. In this embodiment, the gap between the folded portion 312 and the connecting section 112 prevents overlapping edges of the folded portion 312 and the connecting section 112. When the connecting section 112 is connected to the outer panel 2 using welds, this arrangement avoids the formation of multiple welds in this area, ensuring weld quality and reducing process complexity. Furthermore, the gap between the folded portion 312 and the connecting section 112 provides space for thermal expansion and contraction, preventing cracking or abnormal noise caused by stress concentration. It also blocks vibration transmission paths, improving durability and NVH performance.

[0074] Furthermore, in some embodiments, Figure 7 As shown, 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 first plate portion 1121 on either side along the third direction X. The first plate portion 1121 is recessed along the first direction Z. In this embodiment, the connecting section 112 utilizes a recessed first plate portion 1121 to form a locally reinforced structure, improving bending rigidity. The second plate portions 1122 on either side provide enhanced lateral support, optimize the cavity shape, reduce acoustic resonance, and reduce interior noise.

[0075] Accordingly, in some embodiments, as Figure 6 As shown, the second overlapping edge 32 includes a second overlapping portion 321 and two third overlapping portions 322, and the two third overlapping portions 322 are respectively connected to the two sides of the second overlapping portion 321 along the third direction X. Among them, along the first direction Z, the second overlapping portion 321 is arranged opposite to the first plate portion 1121, and at least part of the structure of the second overlapping portion 321 is respectively against and connected to the first plate portion 1121. And along the first direction Z, the two third overlapping portions 322 are respectively arranged opposite to the two second plate portions 1122, and at least part of the structure of the two third overlapping portions 322 is respectively against and connected 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 different regions to achieve multi-point support, distribute the load, improve the overall stiffness of the connecting section 112, ensure the reliability of cavity isolation and support, and avoid local deformation.

[0076] Furthermore, in some embodiments, Figure 7 As shown, the first plate portion 1121 includes a first section 1123, a second section 1124, and a third section 1125, which are sequentially connected along the third direction X. The first section 1123, the second section 1124, and the third section 1125 are staggered along the first direction Z. In this embodiment, the staggered segmented design of the first plate portion 1121 improves the bending stiffness of the connecting section 112, further ensuring the reliability of the joint between the pillar structure and the roof crossbeam 4.

[0077] It can be understood that in some embodiments, the first segment 1123, the second segment 1124 and the third segment 1125 can 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 can be located on the same plane.

[0078] Accordingly, in some embodiments, as Figure 6 As shown, the second overlap portion 321 includes at least two overlap positions 3221 arranged in sequence along the third direction X, and the at least two overlap positions 3221 are respectively abutted against and connected to at least two of the first section 1123, the second section 1124 and the third section 1125. Exemplarily, the second overlap portion 321 includes two overlap positions 3221 spaced apart along the third direction X, and the two overlap positions 3221 are respectively abutted against and connected to the second section 1124 and the third section 1125. It is understandable that the second overlap portion 321 can also be provided with three, four, five or other numbers of overlap positions 3221, as long as the connection function with the second plate portion 1122 can be achieved. In this embodiment, the second overlap portion 321 is connected to the first plate portion 1121 in sections through multiple overlap positions 3221, so as to achieve precise positioning and uniform force, avoid local stress concentration, and improve connection reliability.

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

[0080] Furthermore, in some embodiments, Figure 6 As shown, the second overlapping edge 32 further 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 reinforcement 3. The provision of the positioning hole 324 simplifies the assembly process and ensures that the reinforcement 3 is accurately installed.

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

[0082] Preferably, in some embodiments, Figure 6 As shown, positioning holes 324 can be provided on the raised portion 323. In this embodiment, positioning holes 324 are provided on the raised portion 323, taking advantage of the high rigidity of the raised portion 323 to prevent the positioning holes 324 from weakening the structural strength while facilitating clamping and positioning by automated assembly equipment. Furthermore, positioning holes 324 are provided on the raised portion 323 without occupying the area of the overlapped portion 3221, thereby ensuring the connection strength between the overlapped portion 3221 and the first plate portion 1121.

[0083] Furthermore, in some embodiments, Figure 7 As shown, at least one through hole 1126 can also be provided on the inner panel 1, more specifically, at least one through hole 1126 can be provided on the inner panel upper side beam 11, so as to provide a welding channel for the outer panel body 21, the reinforcing plate 22, the upper side beam body 111 and the reinforcement 3, thereby facilitating assembly. For example, two through holes 1126 can be provided on the inner panel upper side beam 11, and the two through holes 1126 are spaced apart on the connecting section 112, more specifically, the two through holes 1126 are spaced apart along the third direction X, and both are arranged near the connection between the connecting section 112 and the second lap edge 32. It is understandable that one, three, four or other number of through holes 1126 can also be provided on the inner panel 1, preferably two, so as to meet the welding requirements while avoiding excessive occupation of the inner panel 1 space and ensuring the structural strength of the inner panel 1.

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

[0085] For example, the reinforcement member 3 may be integrally formed, such as integrally formed by an aluminum alloy die-casting process, or integrally formed by a stamping process.

[0086] For example, Figure 5As shown, at least one first weld point 6 is provided between the outer panel 2 and the reinforcement 3, more specifically between the reinforcement plate 22 and the reinforcement 3. This first weld point 6 is a double-layer weld connecting the reinforcement plate 22 and the reinforcement 3. This first weld point 6 is used to pre-weld the outer panel 2 and the reinforcement 3, ensuring assembly accuracy. It is understood that one, two, three, or any other number of first weld points 6 can be provided, as long as the pre-weld fixation function between the reinforcement plate 22 and the reinforcement 3 is achieved. Preferably, only one first weld point 6 is provided, which simplifies the assembly process while satisfying the pre-weld fixation function.

[0087] For example, Figure 5 As shown, at least two second welds 7 are provided between the inner panel 1, outer panel 2, and reinforcement 3, more specifically between the inner panel upper side rail 11, reinforcement plate 22, and reinforcement 3. These second welds 7 form a triple layer of welds connecting the inner panel upper side rail 11, reinforcement plate 22, and reinforcement 3. These second welds 7 are used to secure the inner panel upper side rail 11, reinforcement plate 22, and reinforcement 3. For example, two, three, four, five, or any other number of second welds 7 can be provided, as long as the three securing functions are achieved.

[0088] During assembly, the reinforcement 3 and the reinforcement plate 22 are first assembled and welded to form the above-mentioned first welding point 6; then the inner panel upper side beam 11 is fastened to the reinforcement plate 22 from the inside to form the above-mentioned first cavity 10; finally, the inner panel upper side beam 11, the reinforcement plate 22 and the reinforcement 3 are welded to form the above-mentioned second welding point 7.

[0089] On the other hand, this embodiment proposes a vehicle body comprising: the aforementioned pillar structure and roof crossbeam 4, which is connected to connecting section 112. In this embodiment, by integrating the improved pillar structure and roof crossbeam 4, the vehicle body blocks cavity connectivity at the source, significantly reducing interior noise and vibration, and improving the static stiffness and dynamic comfort of the vehicle. By increasing the overall rigidity of the pillar structure in the overlap area with the roof crossbeam 4, the vibration frequency of the roof crossbeam 4 and the roof 5 supported on it is reduced.

[0090] For example, a connecting piece is provided at the end of the roof crossbeam 4 , and the roof crossbeam 4 is connected to the connecting section 112 via the connecting piece.

[0091] For example, the roof cross beam 4 is integrally formed and connected to the connecting section 112 via its own end structure to reduce welding or connection points, thereby simplifying the overall structure and processing technology and facilitating lightweighting.

[0092] The roof cross beam 4 and the connecting section 112 may be connected by bonding, welding, or a combination of bonding and welding.

[0093] For example, Figure 1and Figure 2 As shown, the vehicle body also includes a roof cover 5, which is connected to the top of the roof crossbeam 4. The above-mentioned transverse cavity is formed between the roof crossbeam 4 and the roof cover 5. The above-mentioned reinforcement 3 isolates the transverse cavity from the above-mentioned first cavity 10 to improve safety performance and NVH quality.

[0094] For example, two groups of pillar structures may be provided, and along the second direction Y, the connecting sections 112 of the two groups of pillar structures are respectively connected to the two ends of the roof crossbeam 4 .

[0095] For example, the roof cross beam 4 may be a roof front cross beam or a roof rear cross beam.

[0096] In another aspect, this embodiment provides an automobile comprising the aforementioned pillar structure or vehicle body. In this embodiment, the automobile, through the use of an improved pillar structure or vehicle body, comprehensively enhances safety performance and NVH quality, meeting consumer demand for a high-quality driving experience and enhancing market competitiveness.

[0097] The present invention does not specifically limit the type of automobile, which may be a new energy automobile, a fuel automobile, a gas automobile, etc., as long as the pillar structure or the vehicle body of the present invention is applied.

[0098] The pillar structure, vehicle body, and automobile of the present invention improve the NVH performance of the entire vehicle, enhance the structural strength and stability of the joint between the roof cross member 4 and the pillar structure, and reduce the vibration frequency of the roof 5 in the area of the roof cross member 4. Furthermore, the pillar structure of the present invention is simple in structure, lightweight, has good manufacturability, and has a wide range of applications.

[0099] The above embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Any equivalent substitution or modification made by those skilled in the art based on the present invention is within the protection scope of the present invention.

Claims

1. A pillar structure for connecting with a roof beam (4), characterized in that: include: An inner panel (1) including a connecting section (112); The connecting section (112) is used to connect with the roof crossbeam (4); An outer plate (2) is connected to the outer side of the inner plate (1) along a first direction (Z), and forms a first cavity (10) between the outer plate (2) and the inner plate (1); A reinforcement member (3) is connected between the outer plate (2) and the connecting section (112) to isolate the first cavity (10) from the roof crossbeam (4).

2. The pillar structure according to claim 1, characterized in that: The reinforcement (3) comprises a first overlapping edge (31) and a second overlapping edge (32) connected in sequence along a second direction (Y); the first overlapping edge (31) is connected to the outer panel (2), and the second overlapping edge (32) is connected to the connecting section (112); The second direction (Y) intersects the first direction (Z).

3. The pillar structure according to claim 2, characterized in that: Along the second direction (Y), the connecting section (112) protrudes from the second overlapping edge (32); at least a portion of the connecting section (112) protruding from the second overlapping edge (32) is used to connect with the roof crossbeam (4).

4. The pillar structure according to claim 2, characterized in that: The first overlapping edge (31) comprises 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 is connected to the inner plate (1).

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

6. The pillar structure according to claim 5, characterized in that: In the third direction (X), there is a gap between the folded portion (312) and the connecting section (112).

7. The pillar structure according to claim 2, characterized in that: The connecting section (112) comprises a first plate portion (1121) and two second plate portions (1122); the two second plate portions (1122) are respectively connected to two sides of the first plate portion (1121) along a third direction (X); along the first direction (Z), the first plate portion (1121) is recessed. The third direction (X) intersects with the first direction (Z) and the second direction (Y).

8. The pillar structure according to claim 7, characterized in that: The second overlapping edge (32) includes a second overlapping portion (321) and two third overlapping portions (322), and the two third overlapping portions (322) are respectively connected to the two sides of the second overlapping portion (321) along the third direction (X); at least part of the structure of the second overlapping portion (321) is against and connected to the first plate portion (1121); at least part of the structure of the two third overlapping portions (322) is against and connected to the two second plate portions (1122).

9. The pillar structure according to claim 8, characterized in that: The first plate portion (1121) includes a first section (1123), a second section (1124) and a third section (1125) connected in sequence along the third direction (X); along the first direction (Z), the first section (1123), the second section (1124) and the third section (1125) are arranged alternately.

10. The pillar structure according to claim 9, characterized in that: The second overlapping portion (321) includes at least two overlapping positions (3221) arranged in sequence along the third direction (X), and the at least two overlapping positions (3221) are respectively abutted against and connected to at least two of the first section (1123), the second section (1124) and the third section (1125).

11. The pillar structure according to claim 8, characterized in that: The second overlapping edge (32) further includes at least one raised portion (323), and the raised portion (323) is arranged on the second overlapping portion (321).

12. The pillar structure according to claim 11, characterized in that: The second overlapping edge (32) further includes at least one positioning hole (324).

13. The pillar structure according to claim 12, characterized in that: The positioning hole (324) is provided on the raised portion (323).

14. The pillar structure according to any one of claims 1 to 13, characterized in that: The inner panel (1) comprises an inner panel (1) body and an inner panel upper side beam (11), wherein along the first direction (Z), the inner panel upper side beam (11) is connected to a side of the inner panel (1) body close to the outer panel (2); and the connecting section (112) is arranged on the inner panel upper side beam (11).

15. The pillar structure according to claim 14, characterized in that: The inner panel upper side beam (11) further includes an upper side beam body (111), wherein the upper side beam body (111) intersects and is connected to the connecting section (112); and the upper side beam body (111) is welded to the outer panel (2).

16. The pillar structure according to claim 14, characterized in that: The outer plate (2) comprises an outer plate body (21) and a reinforcing plate (22), wherein the reinforcing plate (22) is connected between the outer plate body (21) and the inner plate upper side beam (11).

17. A vehicle body, characterized in that: include: The pillar structure according to any one of claims 1 to 16; A roof crossbeam (4), the roof crossbeam (4) being connected to the connecting section (112).

18. The vehicle body according to claim 17, characterized in that: The top cover cross beam (4) is integrally formed.

19. An automobile, characterized in that: The method comprises the pillar structure according to any one of claims 1 to 16; or the vehicle body according to claim 17 or 18.

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