A car roof structure and a car

Abstract

This invention relates to the field of automotive parts technology, specifically disclosing an automotive roof structure and an automotive vehicle, comprising: a first roof, including a body and a rear overlapping edge, a side overlapping edge, and a corner overlapping edge disposed on the edge of the body; the rear overlapping edge is located at the rear of the body, the side overlapping edge is located at the side of the body, and the corner overlapping edge connects between the rear overlapping edge and the side overlapping edge; a reinforcing member for mounting a tailgate hinge; the reinforcing member has a first connecting portion, the first connecting portion is located at the bottom of the corner overlapping edge, and is connected to the corner overlapping edge through multiple first weld points; a first sealing body, sealingly connected between the corner overlapping edge and the first connecting portion, and its two ends are respectively connected to the rear overlapping edge and the side overlapping edge. The automotive roof structure and automotive vehicle of this invention improve the reliability of the overall vehicle sealing, thereby enhancing the waterproof and dustproof effects of the entire vehicle and improving airtightness.

Description

Technical Field

[0001] This invention relates to the field of automotive parts technology, specifically to an automotive roof structure and an automotive. Background Technology

[0002] With the increasing diversification of automotive needs, hatchback models are gaining popularity due to their stylish and sporty appearance and convenient trunk space. However, the unique structural design of the hatchback hinges in hatchback models results in a fixed installation position, typically located beneath the integrated roof. In related technologies, the roof usually consists of a roof cover and supporting structures at both ends of the roof's rear, connected by sealant. The rear hinge is mounted on the supporting structure. However, in this design, the supporting structure bears the force of the hatchback hinges, which can easily cause irreversible damage to the sealant between the roof cover and the supporting structure, thus affecting the overall vehicle's airtightness. Therefore, in related technologies, ensuring the airtightness of the roof is difficult, resulting in low reliability and susceptibility to problems such as water leakage and poor airtightness, posing a significant challenge to the vehicle's waterproofing, dustproofing, and airtightness. Summary of the Invention

[0003] One objective of this invention is to provide a car roof structure to solve the problem that the airtightness of the car roof is difficult to guarantee and the reliability is low in the prior art; the second objective is to provide a car.

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

[0005] A car roof structure includes: a first roof, comprising a body and a rear overlapping edge, a side overlapping edge, and a corner overlapping edge disposed on the edge of the body; the rear overlapping edge is located at the rear of the body, the side overlapping edge is located at the side of the body, and the corner overlapping edge is connected between the rear overlapping edge and the side overlapping edge; a reinforcing member for mounting a tailgate hinge; the reinforcing member is provided with a first connecting portion, the first connecting portion is located at the bottom of the corner overlapping edge, and is connected to the corner overlapping edge through a plurality of first weld points; a first sealing body, sealingly connected between the corner overlapping edge and the first connecting portion, and having both ends connected to the rear overlapping edge and the side overlapping edge respectively.

[0006] According to the above technical means, the first connecting part of the reinforcing member and the corner overlap edge of the first top cover are sealed by the first sealing body, and multiple first welding points are used for rigid connection. This improves the connection strength between the reinforcing member and the first top cover, reduces or even eliminates the risk of failure of the seal between the reinforcing member and the first top cover due to the force of the rear hinge, improves the reliability of the seal, and thus improves the waterproof and dustproof effect of the whole vehicle and improves the airtightness.

[0007] Furthermore, the first connecting part is provided with a first sealing groove, and at least a part of the structure of the first sealing body is located in the first sealing groove.

[0008] Based on the aforementioned technical means, the first sealing groove can serve as a guide for adhesive extrusion and a reservoir for the first sealing body, reducing or even eliminating the risk of poor adhesion or adhesive overflow of the first sealing body, thereby improving the sealing effect. Furthermore, gaps may arise between the first connecting portion and the corner overlap due to thermal expansion and contraction or elastic deformation. The first sealing body stored in the first sealing groove can replenish these gaps, ensuring the reliability of the airtight connection between the reinforcing member and the first top cover.

[0009] Furthermore, the reinforcing member has a boss extending around the first connecting portion; the boss is located at the bottom of the body and protrudes towards the body.

[0010] Based on the aforementioned technical means, the boss can serve as a second protective barrier, providing waterproofing and dustproofing when the sealing of the first connecting part and the corner overlap fails, thereby ensuring the reliability of the vehicle's overall sealing.

[0011] Furthermore, the car roof structure also includes two second sealing bodies, which are sealed between the first roof and the reinforcing member. The two second sealing bodies are located at both ends of the first sealing body. One end of the second sealing body is connected to the first sealing body, and the other end extends to the boss portion.

[0012] According to the above technical means, by setting second sealing bodies at both ends of the first sealing body and extending the second sealing bodies to the boss portion, the second sealing bodies, the first sealing body and the boss portion together prevent water and other substances from entering the vehicle, thereby further improving the reliability of the seal, enhancing the waterproof and dustproof effect of the whole vehicle, and improving the airtightness.

[0013] Furthermore, the reinforcing member has a flange extending around the boss portion; the flange is located at the end of the boss portion away from the first connecting portion and is bent toward the body.

[0014] Based on the above technical means, the flanged part can serve as a third protective barrier. When the sealing of the first connecting part and the corner overlap fails, and water, dust, etc. break through the second protective barrier formed by the boss part, the flanged part can play a role in waterproofing and dustproofing, ensuring the reliability of the vehicle's sealing.

[0015] Furthermore, the car roof includes a third sealing body, which is sealed between the first roof and the reinforcing member; the reinforcing member is provided with a second connecting portion for connecting with the side overlapping edge, and the third sealing body extends between the flange portion and the second connecting portion.

[0016] Based on the above technical means, by setting a third sealing body extending between the flange and the second connecting part, water, dust and other substances are prevented from seeping into the vehicle from the end of the flange, thus further ensuring the reliability of the seal.

[0017] Furthermore, a first protective layer is provided at the edge of the corner overlap.

[0018] Based on the above technical means, the first protective layer can prevent the corner overlap from rusting due to prolonged contact with moisture, thereby improving the service life and aesthetics of the first top cover and enhancing the user experience.

[0019] Furthermore, the reinforcing member is provided with a third connecting part, which is located on the side of the first connecting part away from the first top cover. The third connecting part is used to install the tailgate hinge. The car top cover structure also includes a second top cover, which is connected to the first top cover and the reinforcing member, and the second top cover covers the third connecting part.

[0020] Based on the above-mentioned technical means, installing the rear hinge onto the third connecting part before installing the second roof can effectively reduce the installation difficulty of the rear hinge; and designing the car roof as a split structure of the first and second roofs can effectively reduce the production difficulty of the car roof, improve production efficiency, and reduce production costs.

[0021] Furthermore, the second top cover is made of plastic, or the surface of the second top cover has a second protective layer.

[0022] According to the above-mentioned technical means, making the second top cover out of plastic or setting a second protective layer can improve the corrosion resistance of the second top cover, thereby increasing its service life and aesthetics, and enhancing the user experience.

[0023] An automobile includes a body, the top of which is provided with an automobile roof structure as described above.

[0024] The beneficial effects of this invention are:

[0025] (1) The first connecting part of the reinforcing member and the corner overlap edge of the first top cover are sealed by the first sealing body, and multiple first welding points are rigidly connected, which improves the connection strength between the reinforcing member and the first top cover, reduces or even eliminates the risk of failure of the seal between the reinforcing member and the first top cover due to the force of the rear hinge, improves the reliability of the seal, and thus improves the waterproof and dustproof effect of the whole vehicle and improves the airtightness.

[0026] (2) The reinforcing member of the present invention is connected to the first top cover by the first connecting part and the corner overlap edge by the first weld point and the first sealing body to form a first protective barrier. A boss extending around the first connecting part is provided to form a second protective barrier, and a flange extending around the boss is provided to form a third protective barrier. This greatly improves the airtightness of the car top cover structure, thereby improving the waterproof and dustproof effect of the whole vehicle and improving the airtightness.

[0027] (3) By splitting the car roof into a first roof and a second roof, the present invention improves the sealing reliability and enhances the corrosion resistance of the car roof through the anti-corrosion design of the diagonal overlapping edge and the second roof; and solves the problem of difficult installation of the tailgate hinge. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of the rear of a car roof in the prior art;

[0029] Figure 2 This is a schematic diagram of the assembly of the automobile roof structure with the air guide and side panel in this invention;

[0030] Figure 3 for Figure 2 Cross-sectional view at point AA;

[0031] Figure 4 for Figure 3 A magnified view of a section at point I;

[0032] Figure 5 This is a schematic diagram of the structure when the first top cover and the reinforcing member are assembled in this invention;

[0033] Figure 6 This is a schematic diagram of the structure during the assembly of the reinforcing member, the flow guide, and the side panel in this invention. Figure 1 ;

[0034] Figure 7 This is a schematic diagram of the structure during the assembly of the reinforcing member, the flow guide, and the side panel in this invention. Figure 2 ;

[0035] Figure 8 This is a schematic diagram of the reinforcing member in this invention;

[0036] Figure 9 for Figure 8 Cross-sectional view at point BB;

[0037] Figure 10 This is a schematic diagram of the structure of the second top cover in this invention.

[0038] The labels are as follows: 101-Top cover; 102-Support structure; 103-Sealant; 104-Back door hinge mounting surface; 105-First area; 106-Second area; 1-First top cover; 11-Body body; 12-Tail overlap edge; 13-Side overlap edge; 14-Corner overlap edge; 15-First connecting hole; 2-Second top cover; 21-Main body; 211-First side; 212-Second side; 213-Third side; 22-Connector; 23-Overlap part; 24-Side retaining part; 3- Reinforcing member; 31-First connecting part; 32-Boss part; 33-Flanged part; 34-Second connecting part; 35-Third connecting part; 36-Fourth connecting part; 37-First sealing groove; 38-Second sealing groove; 39-Second connecting hole; 4-Sealing structure; 41-First sealing body; 42-Second sealing body; 43-Third sealing body; 44-Fourth sealing body; 45-Fifth sealing body; 5-Welding structure; 51-First weld point; 52-Second weld point; 53-Third weld point; 6-Flow guide; 7-Side panel. Detailed Implementation

[0039] 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.

[0040] 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.

[0041] With the improvement of people's living standards and the popularization of automobiles, the demand for car diversity has increased exponentially. Furthermore, as the age range of car buyers has decreased, hatchback models with a more fashionable and sporty feel have become one of the best-selling models. They have attracted much attention due to their unique advantages, especially the large opening size of the trunk, which provides unparalleled convenience for loading and unloading items and is highly favored by consumers. Regarding the design of the tailgate hinges in hatchback models, due to their special structural type, the installation position of the tailgate hinges is relatively fixed, such as... Figure 1As shown, in the prior art, the top of the support structure 102 sequentially overlaps the guide member 6, the side panel 7, and the top cover 101. The overlapping surfaces of the support structure 102 with the guide member 6, the side panel 7, and the top cover 101 are all sealed with sealant 103. A semi-enclosed installation space is formed between the bottom of the support structure 102 and the top cover 101. The support structure 102 is provided with a rear door hinge mounting surface 104 located within this installation space, which is used to install the rear door hinge. However, this design has many drawbacks:

[0042] 1. Poor reliability of the sealing connection between the roof cover 101 and the supporting structure 102 affects the overall waterproofing, dustproofing, and airtightness of the vehicle. Due to the long dimensional chain in automobile manufacturing, excess adhesive or poor bonding is prone to occur at the joint of the sealant 103 between the roof cover 101 and the supporting structure 102, leading to water and air leaks at the vehicle roof (e.g., Figure 1 The first area 105 shown presents a significant challenge to the vehicle's waterproofing, dustproofing, and airtightness. Furthermore, when the tailgate of a hatchback car is open, the weight of the entire tailgate is applied to the tailgate hinge, increasing the elastic deformation at the hinge. This can easily cause irreversible damage to the aged sealant 103, leading to problems such as water leakage and poor airtightness at the tailgate (e.g., Figure 1 The first region 105 is shown.

[0043] 2. The car roof is prone to rust, affecting the service life and aesthetics of the roof 101. The roof 101 is usually made of metal. At the support structure 102, the edge of the roof 101 (such as...) Figure 1 The second area 106 shown is suspended and frequently exposed to moisture, making it prone to rust on the vehicle's exterior. This seriously affects the vehicle's reputation among consumers and poses a significant threat to the vehicle's production stability and market reputation.

[0044] 3. The rear hinge is difficult to install. The rear door hinge requires high installation precision, and the mounting surface 104 of the rear door hinge is located in a semi-enclosed installation space, which makes the installation of the rear hinge difficult.

[0045] 4. Stamping production of automobile roofs is difficult.

[0046] Based on this, the present invention provides an automobile roof structure and an automobile using the automobile roof structure of the present invention, so as to solve at least one of the above-mentioned technical problems.

[0047] Specifically, this embodiment proposes a car roof structure, such as... Figures 2-10The described car roof structure includes a first roof 1, a reinforcing member 3, a sealing structure 4, and a welded structure 5. The reinforcing member 3 is mounted on the car body and located at the rear of the first roof 1 for mounting the tailgate hinge. The first roof 1 includes a body 11 and rear overlapping edges 12, side overlapping edges 13, and corner overlapping edges 14 located at the edges of the body 11. The rear overlapping edge 12 is located at the rear of the body 11 and is used to connect to a crossbeam on the top of the car body. The side overlapping edge 13 is located on the side of the body 11 and is used to connect to the side panel 7 of the car. The corner overlapping edge 14 connects between the rear overlapping edge 12 and the side overlapping edge 13 and is used to connect to the reinforcing member 3.

[0048] It should be noted that the rear of the main body 11 specifically refers to one end along the length of the car, that is, the end closest to the tailgate. The length of the car is... Figure 2 The vertical direction is shown. The side of the body 11 specifically refers to the side in the width direction of the vehicle, that is, the side closer to the side panel 7. The width direction of the vehicle is... Figure 2 As shown in the left-right direction. Understandably, the edge of the body 11 is provided with two side overlapping edges 13 and two corner overlapping edges 14. The two side overlapping edges 13 are located at both ends of the tail overlapping edge 12, and the two corner overlapping edges 14 are respectively connected between the two side overlapping edges 13 and the two ends of the tail overlapping edge 12. Correspondingly, two reinforcing members 3 are also provided, located at both ends of the tail of the first top cover 1, and respectively connected to the two corner overlapping edges 14.

[0049] Furthermore, such as Figures 3-6 As shown, where Figure 3 and Figure 4 The left-right direction shown represents the height of the car, and the up-down direction represents the length of the car. Figure 5 and Figure 6The image shows the locations of the sealing structure 4 and the welding structure 5. Specifically, the reinforcing member 3 has a first connecting portion 31, which is located at the bottom of the corner overlap edge 14. The bottom of the corner overlap edge 14 specifically refers to the bottom in the height direction of the vehicle, and more specifically, the side of the corner overlap edge 14 facing the interior of the vehicle. The sealing structure 4 includes a first sealing body 41, which is sealed between the corner overlap edge 14 and the first connecting portion 31, and its two ends are respectively connected to the rear overlap edge 12 and the side overlap edge 13. The welding structure 5 includes multiple first weld points 51, and the first connecting portion 31 and the corner overlap edge 14 are connected by the multiple first weld points 51. The multiple first weld points are all located near the first sealing body 41, specifically on the first sealing body 41 or on one side of the first sealing body 41, and the multiple first weld points 51 are spaced apart along the extending direction of the first sealing body 41. It is understood that the first weld points 51 can be formed by spot welding. In actual assembly, the first connecting part 31 and the corner overlapping edge 14 can be sealed and connected by the first sealing body 41 first, and then the first welding point 51 can be formed by spot welding process to achieve a rigid connection between the first connecting part 31 and the corner overlapping edge 14.

[0050] In this embodiment, the first connecting part 31 of the reinforcing member 3 and the corner overlapping edge 14 of the first top cover 1 are sealed and connected by the first sealing body 41, and at the same time, multiple first welding points 51 are rigidly connected, which improves the connection strength between the reinforcing member 3 and the first top cover 1, reduces or even eliminates the risk of the sealing between the reinforcing member 3 and the first top cover 1 failing due to the force of the rear hinge, improves the reliability of the seal, and thus improves the waterproof and dustproof effect of the whole vehicle and improves the airtightness.

[0051] Furthermore, in some embodiments, such as Figure 7 and Figure 8 As shown, a first sealing groove 37 is provided on the first connecting portion 31, and at least a portion of the structure of the first sealing body 41 is located within the first sealing groove 37. In this embodiment, the first sealing groove 37 can serve as a guide for adhesive extrusion and a reservoir for adhesive in the first sealing body 41, reducing or even eliminating the risk of poor adhesion or adhesive overflow of the first sealing body 41, thereby improving the sealing effect. Furthermore, gaps may occur between the first connecting portion 31 and the corner overlap edge 14 due to thermal expansion and contraction or elastic deformation. The first sealing body 41 stored in the first sealing groove 37 can replenish these gaps, ensuring the reliability of the airtight connection between the reinforcing member 3 and the first top cover 1.

[0052] Furthermore, such as Figure 6-Figure 8As shown, the reinforcing member 3 also has a second connecting part 34 and a fourth connecting part 36 located at both ends of the first connecting part 31. The second connecting part 34 is used to connect with the side overlapping edge 13, and the fourth connecting part 36 is used to connect with the rear overlapping edge 12. The automobile also typically includes a side panel 7 and a guide 6. The side panel 7 is located on both sides in the width direction of the automobile and is connected with the side overlapping edge 13. The guide 6 is located at the rear in the length direction of the automobile and is used to form a water channel. Among them, the reinforcing member 3 is located at the bottom layer. The guide 6, the side panel 7 and the first top cover 1 are sequentially overlapped onto the reinforcing member 3 and are sealed to the reinforcing member 3. Specifically, the side overlapping edges 13 of the guide 6, the side panel 7 and the first top cover 1 are sequentially overlapped onto the second connecting part 34 of the reinforcing member 3, and the overlapping surfaces of the side overlapping edges 13 of the guide 6, the side panel 7 and the first top cover 1 and the second connecting part 34 are all sealed to each other by the sealing structure 4 and rigidly connected by the welding structure 5.

[0053] Furthermore, the first sealing groove 37 is recessed on the top surface of the first connecting part 31 and extends between the second connecting part 34 and the fourth connecting part 36, so that the two ends of the first sealing groove 37 are close to the side overlapping edge 13 and the tail overlapping edge 12 respectively, thereby improving the extrusion guidance and glue storage effect.

[0054] Furthermore, in this embodiment, the first sealing body 41 is located within the first sealing groove 37, and the aforementioned plurality of first welding points 51 can be disposed on the side of the first sealing groove 37 near or away from the first top cover 1, thereby such that the first welding points 51 are disposed on one side of the first sealing body 41. Preferably, the plurality of first welding points 51 are disposed on the side of the first sealing groove 37 away from the first top cover 1.

[0055] Understandably, the first sealing body 41 can be formed from a paste or liquid sealant, or a solid sealant strip, preferably from a paste sealant. During the assembly of the automotive roof structure, the reinforcing member 3 is first fixed to the vehicle body, and then the paste sealant is uniformly squeezed into the first sealing groove 37, filling the first sealing groove 37 and forming the aforementioned first sealing body 41. The first sealing body 41 protrudes 3-5mm from the first sealing groove. The protruding portion serves as a sealing connection between the reinforcing member 3 and the first roof 1, while the portion stored within the first sealing groove 37 compensates for gap changes between the reinforcing member 3 and the first roof 1 due to thermal expansion and contraction and elastic deformation, ensuring reliable sealing.

[0056] In some embodiments, the reinforcing member 3 has a boss 32 extending around the first connecting portion 31. The boss 32 is located at the bottom of the body 11 and protrudes towards the body 11. Specifically, the two ends of the first connecting portion 31 are connected to the second connecting portion 34 and the fourth connecting portion 36, respectively, and the two ends of the boss 32 are connected to the second connecting portion 34 and the fourth connecting portion 36. In this embodiment, the boss 32 can serve as a second protective barrier, providing waterproofing and dustproofing when the sealing of the first connecting portion 31 and the corner overlap edge 14 fails, thereby ensuring the reliability of the vehicle's sealing.

[0057] Furthermore, such as Figure 6 As shown, the sealing structure 4 also includes two second sealing bodies 42, which are sealingly connected between the first top cover 1 and the reinforcing member 3. The two second sealing bodies 42 are located at both ends of the first sealing body 41. One end of the second sealing body 42 is connected to the first sealing body 41, and the other end extends to the boss portion 32. More specifically, both the two second sealing bodies 42 and the first sealing body 41 extend around the edge of the boss portion 32, and part of the structure of the second sealing body 42 is located on the first connecting portion 31, while part of the structure extends to the boss portion 32. Specifically, the portion of the second sealing body 42 located on the first connecting portion 31 is sealingly connected between the first connecting portion 31 and the corner overlap edge 14, and the portion of the second sealing body 42 extending to the boss portion 32 is sealingly connected between the boss portion 32 and the body 11. In this embodiment, by providing second sealing bodies 42 at both ends of the first sealing body 41 and extending the second sealing bodies 42 to the boss portion 32, the second sealing bodies 42, the first sealing body 41, and the boss portion 32 together prevent water and other substances from entering the vehicle, thereby further improving the reliability of the seal, enhancing the waterproof and dustproof effect of the whole vehicle, and improving the airtightness.

[0058] It should be noted that, as Figure 4 As shown, along the height direction of the vehicle, the boss portion 32 protrudes upward relative to the first connecting portion 31, and correspondingly, the corner overlapping edge 14 of the first top cover 1 is recessed downward relative to the body 11, so as to facilitate the connection between the corner overlapping edge 14 and the first connecting portion 31. Furthermore, the shapes and structures of the two second sealing bodies 42 do not need to be exactly the same; they can be adaptively adjusted according to the shape and structure of the boss portion 32, as long as they can cooperate with the first sealing body 41 to jointly prevent water or other substances from entering between the boss portion 32 and the body 11.

[0059] Furthermore, at least one second sealing groove 38 may be provided on the boss portion 32, and at least one of the two second sealing bodies 42 may be disposed within the second sealing groove 38. For example... Figure 6-Figure 8As shown, a second sealing groove 38 is provided on the boss portion 32, and at least a portion of the structure of the second sealing body 42 near the fourth connecting portion 36 is disposed in the second sealing groove 38. It can be understood that the second sealing body 42 can be formed of paste or liquid sealant, or it can be a solid sealing strip, preferably formed of paste sealant, and its formation method is similar to that of the first sealing body 41, which will not be described again here.

[0060] In some embodiments, the reinforcing member 3 is provided with a flange 33 extending around the boss portion 32. The flange 33 is located at the end of the boss portion 32 away from the first connecting portion 31 and is bent towards the body 11. Specifically, the two ends of the flange 33 are connected to the second connecting portion 34 and the fourth connecting portion 36, respectively. In this embodiment, the flange 33 can serve as a third protective barrier. When the sealing of the first connecting portion 31 and the corner overlap edge 14 fails, and water, dust, etc. break through the second protective barrier formed by the boss portion 32, the flange 33 can play a role in waterproofing and dustproofing, ensuring the reliability of the vehicle's sealing.

[0061] Furthermore, the sealing structure 4 includes a third sealing body 43, which is sealed between the first top cover 1 and the reinforcing member 3. The reinforcing member 3 is provided with a second connecting portion 34 for connecting with the side overlapping edge 13, and the third sealing body 43 extends between the flange portion 33 and the second connecting portion 34. It should be noted that the third sealing body 43 extends between the flange portion 33 and the second connecting portion 34, and the third sealing body 43 may have a portion located on the second connecting portion 34 and a portion located on the boss portion 32 and connected to the flange portion 33; or the third sealing body 43 may be completely located on the second connecting portion 34 and connected to the flange portion 33. Specifically, the portion of the third sealing body 43 located on the second connecting portion 34 is sealed between the second connecting portion 34 and the side overlapping edge 13. More specifically, the second connecting portion 34 is sequentially overlapped with a guide member 6 and a side panel 7, and the portion of the third sealing body 43 located on the second connecting portion 34 is sealed between the side panel 7 and the side overlapping edge 13. In this embodiment, the third sealing body 43 can prevent water, dust, etc. from seeping into the vehicle through the end of the flange 33, further ensuring the reliability of the seal.

[0062] Furthermore, of the two second sealing bodies 42, the first second sealing body 42 is located at the end of the first sealing body 41 near the second connecting portion 34, and the second second sealing body 42 is located at the end of the first sealing body 41 near the fourth connecting portion 36. In some cases, both ends of the second second sealing body 42 are connected to the first sealing body 41 and the flange portion 33 respectively, to further ensure the reliability of the waterproof and dustproof properties of the flange portion 33. Understandably, the third sealing body 43 can be formed from a paste or liquid sealant, or it can be a solid sealing strip, preferably formed from a paste sealant. Its formation method is similar to that of the first sealing body 41, and will not be described again here.

[0063] In the technical solution of this invention, a sealing surface is formed between the first connecting portion 31 of the reinforcing member 3 and the corner overlapping edge 14 of the first top cover 1. A first sealing body 41 is used to seal the sealing surface of both, and multiple first welding points 51 provide a rigid connection. The sealing effect is enhanced by placing the first sealing body 41 within the first sealing groove 37. In extreme cases, when the first sealing body 41 experiences adhesive failure or aging, and a small amount of water leaks into the vehicle after rain or washing, the protrusion portion 32 effectively prevents water from entering, forming a second waterproof barrier. Furthermore, in the most extreme case, when the first sealing body 41 experiences adhesive failure or aging, and excessive rainwater or car wash water leaks beyond the second waterproof barrier (i.e., the protrusion portion 32), the flange portion 33 cooperates with the third sealing body 43 and the second sealing body 42 to prevent leaked water from entering the vehicle, forming a third waterproof barrier against water leakage from the sealing surfaces of the reinforcing member 3 and the first top cover 1. Furthermore, in the design and vehicle assembly of the entire reinforcing component 3, the car roof structure forms a natural front-high-rear-low posture. Even if the first sealing body 41 fails to seal as mentioned above, the second and third waterproof barriers can work with the second sealing body 42 and the third sealing body 43 to block the leaked rainwater or car wash water on the reinforcing component 3. When the vehicle is in a level or front-high-rear-low position, the leaked rainwater or car wash water will automatically seep out of the vehicle along the leakage gaps and be discharged to the outside of the car along the guide 6, thus preventing pollution of the car interior and eliminating the risk of a poor user experience.

[0064] Furthermore, a first protective layer is provided at the edge of the corner overlap 14 to prevent corrosion caused by prolonged contact with moisture, etc., thereby improving the service life and aesthetics of the first top cover 1 and enhancing the user experience. Understandably, the first protective layer can be a coating layer, passivation layer, plating layer, etc., as long as it can improve the corrosion resistance of the corner overlap 14.

[0065] Furthermore, such as Figure 5 and Figure 6As shown, the sealing structure 4 further includes a fourth sealing body 44 and a fifth sealing body 45, and the welding structure 5 further includes a second weld point 52 and a third weld point 53. The fourth sealing body 44 is sealingly connected between the fourth connecting portion 36 and the tail overlap edge 12, and the fourth sealing body 44 is connected to the first sealing body 41. The fourth connecting portion 36 and the tail overlap edge 12 are connected by a plurality of second weld points 52. The plurality of second weld points 52 can be disposed on the fourth sealing body 44 or on one side of the fourth sealing body 44, and the plurality of second weld points 52 are spaced apart along the extending direction of the fourth sealing body 44. The fifth sealing body 45 is sealed between the second connecting part 34 and the side overlapping edge 13. More specifically, the side overlapping edges 13 of the flow guide 6, the side panel 7, and the first top cover 1 are sequentially overlapped on the second connecting part 34. The aforementioned fifth sealing body 45 can be provided between the overlapping surfaces of the second connecting part 34 and the flow guide 6, between the overlapping surfaces of the second connecting part 34 and the side panel 7, and between the overlapping surfaces of the second connecting part 34 and the side overlapping edge 13. Furthermore, the overlap points of the flow guide 6, the side panel 7, the side overlapping edge 13, and the second connecting part 34 can be connected by multiple third welding points 53. The multiple third welding points 53 can be provided on the fifth sealing body 45 or on one side of the fifth sealing body 45, and the multiple third welding points 53 are spaced apart along the extension direction of the fifth sealing body 45.

[0066] Understandably, the fourth sealing body 44 and the fifth sealing body 45 can be formed from paste or liquid sealant, or from solid sealant strips, preferably from paste sealant. The second weld point and the third weld point 53 can be formed by spot welding.

[0067] Furthermore, the reinforcing member 3 is provided with a third connecting part 35, which is located on the side of the first connecting part 31 away from the first top cover 1. The third connecting part 35 is used to install the back door hinge. The second connecting part 34, the first connecting part 31 and the fourth connecting part 36 are connected in sequence and together surround the outside of the third connecting part 35 to connect with other structures and provide good support.

[0068] Furthermore, the car roof structure also includes a second roof 2, which is connected to the first roof 1 and the reinforcing member 3, and covers the third connecting portion 35. Understandably, there are two second roofs 2, each located at the corner overlap edge 14 at both ends of the rear of the first roof 1. In this embodiment, the rear hinge is installed onto the third connecting portion 35 before installing the second roof 2, effectively reducing the installation difficulty of the rear hinge. Moreover, designing the car roof as a separate structure of the first roof 1 and the second roof 2 effectively reduces the manufacturing difficulty of the car roof, improves production efficiency, and reduces production costs.

[0069] The second top cover 2 can be fixedly connected to the first top cover 1 and the reinforcing member 3, such as by welding, or it can be detachably connected to the first top cover 1 and the reinforcing member 3.

[0070] For example, such as Figure 5-Figure 8 As shown, at least one first connecting hole 15 is provided on the corner overlapping edge 14, and correspondingly, at least one second connecting hole 39 is provided on the first connecting portion 31. Each first connecting hole 15 and each second connecting hole 39 are opposite to each other and communicate with each other. Figure 10 The second top cover 2 is provided with at least one connector 22, each connector 22 passing through a first connecting hole 15 and a second connecting hole 39 disposed opposite to each other, so as to connect the second top cover 2 to the first top cover 1 and the reinforcing member 3. For example, the connector 22 can be a waterproof snap-fit ​​connector, which snaps onto the first top cover 1 and the reinforcing member 3 through the first connecting hole 15 and the second connecting hole 39, and the waterproof snap-fit ​​connector can provide waterproofing and dustproofing for the first connecting hole 15 and the second connecting hole 39.

[0071] Specifically, such as Figure 2 and Figure 10 As shown, the second top cover 2 includes a main body 21, which has a first side surface 211, a second side surface 212, and a third side surface 213 connected in sequence. The first side surface 211 is curved and extends in the same direction as the corner overlap edge 14, and is used to fit against the corner overlap edge 14. The second side surface 212 faces the side panel 7 and has an overlap portion 23 extending away from the main body 21. The overlap portion 23 is used to connect with the second connecting portion 34, such as by sealing with sealant. In some cases, the above-mentioned guide member 6 and the side panel 7 are sequentially overlapped on the second connecting portion 34, and the overlap portion 23 can be indirectly connected to the second connecting portion 34 through the guide member 6 or the side panel 7. The third side surface 213 connects to the rear overlap edge 12, that is, the third side surface 213 faces the rear of the car. The third side 213 is provided with a retaining edge 24, which bends toward the bottom of the main body 21. The retaining edge 24 is used to cover the third connecting part 35 to improve the aesthetics of the car roof structure.

[0072] For example, the main body 21 may be provided with three connectors 22, which are respectively located near the first side 211, the second side 212, and the third side 213. Correspondingly, the corner overlapping edge 14 and the first connecting part 31 are respectively provided with three first connecting holes 15 and three second connecting holes 39, with each connector 22, first connecting hole 15, and second connecting hole 39 corresponding one-to-one. It can be understood that the aforementioned connectors 22, first connecting holes 15, and second connecting holes 39 may also be provided in one, two, four, five, or other quantities, and the present invention does not specifically limit this.

[0073] Furthermore, the second top cover 2 can be a plastic part with stronger corrosion resistance or a steel plate stamping part with special anti-corrosion treatment. That is, the material of the second top cover 2 can be plastic, or the material of the second top cover 2 can be steel, and its surface can be provided with a second protective layer. This setting can improve the rust resistance of the second top cover 2, thereby increasing the service life and aesthetics of the second top cover 2, and improving the user experience. The second protective layer can be a coating layer, passivation layer, plating layer, etc., as long as it can improve the rust resistance of the second top cover 2.

[0074] The technical solution of this invention, based on the traditional automobile roof, splits the automobile roof into a first roof 1 and a second roof 2, and makes special designs for areas of the automobile roof that are prone to water leakage, air leakage, and corrosion due to poor adhesion or aging. This not only completely solves the problem of poor waterproofing, dustproofing, and airtightness of the car body at the hinge of the hatchback door, but also solves the problems of complex design, high cost, and difficult installation caused by the hatchback door hinge being hidden under the automobile roof. Furthermore, the corrosion-resistant design of the diagonal overlapping edge 14 and the second roof 2 solves the problem of easy corrosion of the automobile roof. In addition, splitting the automobile roof into a first roof 1 and a second roof 2 simplifies the structure of the roof 101 and effectively reduces the difficulty of automobile roof stamping production.

[0075] An embodiment of the present invention also includes an automobile, comprising a vehicle body, the top of which is provided with an automobile roof structure as described above, and side panels 7 and air guides 6 are provided on the vehicle body. A reinforcing member 3 of the automobile roof structure is fixedly installed on the vehicle body, such as on a crossbeam at the top of the vehicle body. The reinforcing member 3 can be a stamped sheet, located at the bottom layer, with the air guide 6, side panels 7, and first roof 1 sequentially overlapping on its upper part. The overlapping surfaces of the reinforcing member 3 with the air guide 6, side panels 7, and first roof 1 are all sealed and connected, specifically by using the sealing structure 4 and welding structure 5 described above.

[0076] Because the automobile of the present invention adopts the above-mentioned automobile roof structure, the reliability of the whole vehicle sealing is effectively improved, the overall waterproof, dustproof and airtight effects are guaranteed, and the consumer satisfaction is greatly improved.

[0077] 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 car roof structure, characterized in that, include: The first top cover (1) includes a body (11) and a tail overlap edge (12), a side overlap edge (13) and a corner overlap edge (14) disposed on the edge of the body (11); the tail overlap edge (12) is located at the tail of the body (11), the side overlap edge (13) is located at the side of the body (11), and the corner overlap edge (14) is connected between the tail overlap edge (12) and the side overlap edge (13); A reinforcing member (3) is used to install a rear door hinge; the reinforcing member (3) is provided with a first connecting part (31), the first connecting part (31) is located at the bottom of the corner overlapping edge (14), and is connected to the corner overlapping edge (14) through a plurality of first welding points (51); the reinforcing member (3) is provided with a boss part (32) extending around the first connecting part (31), the boss part (32) is located at the bottom of the body (11), and protrudes toward the body (11); The first sealing body (41) is sealed between the corner overlap edge (14) and the first connecting part (31), and its two ends are respectively connected to the tail overlap edge (12) and the side overlap edge (13); Two second sealing bodies (42) are sealed between the first top cover (1) and the reinforcing member (3). The two second sealing bodies (42) are located at both ends of the first sealing body (41). One end of the second sealing body (42) is connected to the first sealing body (41), and the other end extends to the boss portion (32).

2. The automobile roof structure according to claim 1, characterized in that: The first connecting part (31) is provided with a first sealing groove (37), and at least a part of the structure of the first sealing body (41) is located in the first sealing groove (37).

3. The automobile roof structure according to claim 1, characterized in that: The reinforcing member (3) is provided with a flange (33) extending around the boss (32); the flange (33) is located at the end of the boss (32) away from the first connecting part (31) and is bent toward the body (11).

4. The automobile roof structure according to claim 3, characterized in that: The car roof (101) includes a third sealing body (43) which is sealed between the first roof (1) and the reinforcing member (3); the reinforcing member (3) is provided with a second connecting part (34) for connecting with the side overlapping edge (13), and the third sealing body (43) extends between the flanged part (33) and the second connecting part (34).

5. The automobile roof structure according to any one of claims 1-4, characterized in that: The corner overlap edge (14) is provided with a first protective layer.

6. The automobile roof structure according to any one of claims 1-4, characterized in that: The reinforcing member (3) is provided with a third connecting part (35), which is located on the side of the first connecting part (31) away from the first top cover (1). The third connecting part (35) is used to install the back door hinge. The car roof structure also includes a second roof (2), which is connected to the first roof (1) and the reinforcing member (3), and the second roof (2) covers the third connecting part (35).

7. The automobile roof structure according to claim 6, characterized in that: The second top cover (2) is made of plastic, or the surface of the second top cover (2) is provided with a second protective layer.

8. An automobile, comprising a vehicle body, characterized in that, The top of the vehicle body is provided with a car roof structure as described in any one of claims 1-7.

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