Automobile top cover structure and automobile

Abstract

The invention relates to the technical field of automobile accessories, and particularly discloses an automobile top cover structure and an automobile, the automobile top cover structure comprises a first top cover which comprises a body, and a tail overlapping edge, a side overlapping edge and a corner overlapping edge which are arranged on the edge of the body; the tail overlapping edge is located at the tail of the body, the side overlapping edge is located on the side of the body, and the corner overlapping edge is connected between the tail overlapping edge and the side overlapping edge. The reinforcer is used for mounting the back door hinge; the reinforcing piece is provided with a first connecting part, and the first connecting part is located at the bottom of the corner lap joint edge and connected with the corner lap joint edge through a plurality of first welding spots. The first sealing body is connected between the corner lap joint edge and the first connecting part in a sealed mode, and the two ends of the first sealing body are connected with the tail lap joint edge and the side lap joint edge respectively. According to the automobile top cover structure and the automobile, the sealing reliability of the whole automobile is improved, the waterproof and dustproof effects of the whole automobile are improved, and the air tightness is improved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile accessories, and in particular to an automobile roof structure and an automobile. Background Art

[0002] With the increasing demand for diversified automobiles, hatchback models are popular because of their stylish and sporty appearance and trunk convenience. However, in hatchback models, the special structural design of the back door hinge causes its installation position to be fixed, and it is often installed under the integrated car roof. In the related art, the car roof usually includes a top cover and a supporting structure located at both ends of the rear of the top cover. The top cover and the supporting structure are connected by sealant, and the back hinge is installed on the supporting structure. However, in this design, the supporting structure bears the force of the back door hinge, which is easy to cause irreversible damage to the sealant between the top cover and the supporting structure, thereby affecting the airtightness of the entire vehicle. Therefore, in the related art, the airtightness of the car roof is difficult to ensure, the reliability is low, and it is easy to cause problems such as water leakage and poor airtightness, which brings great challenges to the waterproof, dustproof and airtightness of the entire vehicle. Summary of the invention

[0003] One of the purposes of the present invention is to provide a car roof structure to solve the problem in the prior art that the airtightness of the car roof is difficult to ensure and the reliability is low; the second 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 car roof structure comprises: a first roof, comprising a body and a tail lap edge, a side lap edge and a corner lap edge arranged at the edge of the body; the tail lap edge is located at the tail of the body, the side lap edge is located at the side of the body, and the corner lap edge is connected between the tail lap edge and the side lap edge; a reinforcement member used for installing a back door hinge; the reinforcement member is provided with a first connecting portion, the first connecting portion is located at the bottom of the corner lap edge, and is connected to the corner lap edge through a plurality of first welding points; a first sealing body, sealingly connected between the corner lap edge and the first connecting portion, and the two ends are respectively connected to the tail lap edge and the side lap edge.

[0006] According to the above technical means, the first connecting portion of the reinforcement and the corner overlapping edge of the first top cover are sealed and connected by a first sealing body, and a plurality of first welding points are used for rigid connection, thereby improving the connection strength between the reinforcement and the first top cover, reducing or even eliminating the risk of failure of the airtightness between the reinforcement and the first top cover due to the force of the back hinge, improving the reliability of the seal, and further improving the waterproof and dustproof effects of the entire vehicle and improving the airtightness.

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

[0008] According to the above technical means, the first sealing groove can be used as a guide for glue extrusion and a glue storage for the first sealing body, reducing or even eliminating the risk of the first sealing body being poorly bonded or overflowing, thereby improving the sealing effect. In addition, a gap will be generated between the first connecting portion and the corner overlap edge due to thermal expansion and contraction or elastic deformation, and the first sealing body stored in the first sealing groove can be supplemented when the gap is generated, thereby ensuring the reliability of the airtight connection between the reinforcement and the first top cover.

[0009] Furthermore, the reinforcement is provided with a boss portion extending around the first connecting portion; the boss portion is located at the bottom of the main body and protrudes toward the main body.

[0010] According to the above technical means, the boss portion can serve as a second protective barrier, and when the airtightness of the overlapping edge between the first connection portion and the corner fails, it can play a role in waterproofing and dustproofing, thereby ensuring the reliability of the airtightness of the entire vehicle.

[0011] Furthermore, the automobile roof structure also includes two second sealing bodies, which are sealed between the first roof and the reinforcement, and are respectively 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 arranging the second sealing body at both ends of the first sealing body and extending the second sealing body to the boss part, the second sealing body, the first sealing body and the boss part jointly block water and the like from entering the vehicle, thereby further improving the sealing reliability, enhancing the waterproof and dustproof effects of the entire vehicle, and improving the airtightness.

[0013] Furthermore, the reinforcement is provided with a flange portion extending around the boss portion; the flange portion is located at an end of the boss portion away from the first connecting portion and is bent toward a direction close to the main body.

[0014] According to the above technical means, the flange part can serve as the third protective barrier. When the airtightness of the overlapping edge between the first connection part and the corner fails, and water, dust, etc. break through the second protective barrier formed by the boss part, the flange part can play a role in waterproofing and dustproofing, thereby ensuring the reliability of the airtightness of the entire vehicle.

[0015] Furthermore, the automobile roof includes a third sealing body, which is sealed between the first roof and the reinforcement; the reinforcement is provided with a second connecting portion for connecting to the side lap edge, and the third sealing body extends between the flange portion and the second connecting portion.

[0016] According to the above technical means, by providing a third sealing body extending between the flange portion and the second connecting portion, water, dust, etc. are prevented from penetrating into the vehicle through the end of the flange portion, thereby further ensuring the reliability of sealing.

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

[0018] According to the above technical means, the first protective layer can prevent the overlapping edges of the corners from rusting due to long-term contact with water vapor, etc., thereby improving the service life and aesthetics of the first top cover, and thus enhancing the user experience.

[0019] Furthermore, the reinforcement is provided with a third connection portion, which is located on the side of the first connection portion away from the first top cover, and the third connection portion is used to install the tailgate hinge; the automobile top cover structure also includes a second top cover, the second top cover is connected to the first top cover and the reinforcement, and the second top cover covers the third connection portion.

[0020] According to the above technical means, before installing the second top cover, the back hinge is installed on the third connecting part, which can effectively reduce the difficulty of installing the back hinge; and the car top cover is designed as a split structure of the first top cover and the second top cover, which can effectively reduce the production difficulty of the car top cover, improve production efficiency and reduce production costs.

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

[0022] According to the above technical means, the second top cover is made of plastic or a second protective layer is provided, which can improve the corrosion resistance of the second top cover, thereby increasing the service life and aesthetics of the second top cover and improving the user experience.

[0023] A car comprises a car body, wherein the top of the car body is provided with the above-mentioned car roof structure.

[0024] Beneficial effects of the present invention:

[0025] (1) The first connection portion of the reinforcement and the corner overlap edge of the first top cover are sealed and connected by a first sealing body, and are rigidly connected by multiple first welding points, thereby improving the connection strength between the reinforcement and the first top cover, reducing or even eliminating the risk of failure of the airtightness between the reinforcement and the first top cover due to the force of the back hinge, improving the reliability of the seal, and further improving the waterproof and dustproof effects of the entire vehicle, and improving the airtightness;

[0026] (2) The reinforcement member of the present invention and the first roof cover are connected by the first connection part and the corner overlap edge by the first welding point and the first sealing body to form a first protective barrier, a boss part extending around the first connection part is provided to form a second protective barrier, and a flange part extending around the boss part is provided to form a third protective barrier, which greatly improves the airtightness of the automobile roof structure, thereby improving the waterproof and dustproof effects of the entire vehicle and improving the airtightness;

[0027] (3) The present invention improves the sealing reliability by splitting the automobile roof into a first roof and a second roof. At the same time, the anti-corrosion design of the diagonal overlapping edges and the second roof improves the rust resistance of the automobile roof, and solves the problem of difficulty in installing the tailgate hinge. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the rear part of the automobile top cover in the prior art;

[0029] Figure 2 It is a structural schematic diagram of the automobile top cover structure, the guide member and the side panel when assembled in the present invention;

[0030] Figure 3 for Figure 2 Cross-sectional view at AA in the middle;

[0031] Figure 4 for Figure 3 A partial enlarged view of point I in the middle;

[0032] Figure 5 It is a schematic diagram of the structure when the first top cover and the reinforcement member are assembled in the present invention;

[0033] Figure 6 The structure diagram of the reinforcement, the guide and the side panel of the present invention when assembled Figure 1 ;

[0034] Figure 7 The structure diagram of the reinforcement, the guide and the side panel of the present invention when assembled Figure 2 ;

[0035] Figure 8 It is a schematic diagram of the structure of the reinforcement member in the present invention;

[0036] Fig. 9 for Figure 8 Cross-section at the middle BB;

[0037] Fig.10 It is a schematic structural diagram of the second top cover in the present invention.

[0038] Among them, the numbers are: 101-top cover; 102-support structure; 103-sealant; 104-back door hinge installation surface; 105-first area; 106-second area; 1-first top cover; 11-body; 12-tail lap edge; 13-side lap edge; 14-corner lap edge; 15-first connecting hole; 2-second top cover; 21-main body; 211-first side; 212-second side; 213-third side; 22-connector; 23-lap part; 24-edge part; 3- Reinforcement member; 31-first connecting portion; 32-boss portion; 33-flanged portion; 34-second connecting portion; 35-third connecting portion; 36-fourth connecting portion; 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 welding point; 52-second welding point; 53-third welding point; 6-flow guide; 7-side panel. DETAILED DESCRIPTION

[0039] The following will describe the embodiments of the present invention 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 contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways 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, 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 illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being 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 complicated.

[0041] With the improvement of people's living standards and the popularization of automobiles, the demand for automobile diversity has increased exponentially. As the age of car buyers drops, hatchback models with more fashionable and sporty styles have become one of the hot-selling models. They have attracted much attention due to their unique advantages, especially the large opening size of the trunk, which is easy to take and put items. It is favored by consumers for its irreplaceable convenience. For the design of the back door hinge of hatchback models, due to its special structure, the installation position of the back door hinge is relatively fixed, such as Figure 1As shown, in the prior art, the top of the support structure 102 overlaps the guide member 6, the side panel 7 and the top cover 101 in sequence, and the overlapping surfaces of the support structure 102, the guide member 6, the side panel 7 and the top cover 101 are all sealed and connected by a sealant 103. A semi-enclosed installation space is formed between the support structure 102 and the bottom of the top cover 101, and a back door hinge installation surface 104 located in the installation space is provided on the support structure 102, and the back door hinge installation surface 104 is used to install the back door hinge. However, this design has many defects:

[0042] 1. The reliability of the sealing connection between the top cover 101 and the supporting structure 102 is poor, which affects the waterproof, dustproof and airtightness of the whole vehicle. Due to the long size chain of the automobile during the manufacturing process, it is very easy to overflow the sealant 103 at the connection between the top cover 101 and the supporting structure 102, or the sealant 103 is not firmly bonded, resulting in water leakage and air leakage at the top cover of the automobile (such as Figure 1 In addition, when the back door of a hatchback car is open, the weight of the entire back door is applied to the back door hinge, which increases the elastic deformation of the back door hinge and easily causes irreversible damage to the aged sealant 103, resulting in water leakage, poor airtightness and other problems at the back door of the car (such as Figure 1 The first region 105 is shown).

[0043] 2. The car roof is prone to rust, which affects 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 in the figure is suspended in the air and is often exposed to water vapor, which is easy to cause rust on the appearance of the vehicle, seriously affecting the reputation of the vehicle in front of consumers, and burying a lot of hidden dangers for the production robustness and market reputation of the vehicle.

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

[0045] 4. The stamping production of automobile roof covers is difficult.

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

[0047] Specifically, this embodiment proposes a car roof structure, such as Figure 2-Figure 10The automobile roof structure comprises a first roof 1, a reinforcement 3, a sealing structure 4 and a welding structure 5. The reinforcement 3 is installed on the body of the automobile and is located at the rear of the first roof 1 for installing the back door hinge. The first roof 1 comprises a main body 11 and a rear lap edge 12, a side lap edge 13 and a corner lap edge 14 arranged at the edge of the main body 11. The rear lap edge 12 is located at the rear of the main body 11 and is used to connect with the crossbeam on the top of the vehicle body. The side lap edge 13 is located at the side of the main body 11 and is used to connect with the side panel 7 of the automobile. The corner lap edge 14 is connected between the rear lap edge 12 and the side lap edge 13 and is used to connect with the reinforcement 3.

[0048] It should be noted that the rear end of the body 11 specifically refers to one end in the length direction of the car, that is, the end close to the back door of the car. Figure 2 The side of the body 11 specifically refers to one side in the width direction of the car, that is, the side close to the side panel 7. The width direction of the car is also the side of the side panel 7. Figure 2 As shown in the left and right directions. It can be understood that the edge of the body 11 is provided with two side overlap edges 13 and two corner overlap edges 14, the two side overlap edges 13 are respectively located at the two ends of the tail overlap edge 12, and the two corner overlap edges 14 are respectively connected between the two side overlap edges 13 and the two ends of the tail overlap edge 12. Correspondingly, two reinforcement members 3 are also provided, and the two reinforcement members 3 are respectively located at the two ends of the tail of the first top cover 1, and are respectively connected to the two corner overlap edges 14.

[0049] Furthermore, if Figure 3-Figure 6 As shown, Figure 3 and Figure 4 The left-right direction shown in the figure is the height direction of the car, and the up-down direction is the length direction of the car. Figure 5 and Figure 6The sealing structure 4 and the welding structure 5 are shown in the figure. Specifically, the reinforcement 3 is provided with a first connection portion 31, and the first connection portion 31 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 car, and more specifically, the side of the corner overlap edge 14 facing the inside of the car. The sealing structure 4 includes a first sealing body 41, and the first sealing body 41 is sealed and connected between the corner overlap edge 14 and the first connection portion 31, and the two ends are connected with the tail overlap edge 12 and the side overlap edge 13 respectively. The welding structure 5 includes a plurality of first welding points 51, and the first connection portion 31 is connected to the corner overlap edge 14 through a plurality of first welding points 51. The plurality of first welding points are all arranged near the first sealing body 41, and can be specifically arranged on the first sealing body 41, or can be arranged on one side of the first sealing body 41, and the plurality of first welding points 51 are arranged at intervals along the extension direction of the first sealing body 41. It can be understood that the first welding points 51 can be formed by a spot welding process. During actual assembly, the first connection portion 31 and the corner overlap edge 14 may be sealed and connected via the first sealing body 41 , and then the first welding point 51 may be formed by a spot welding process to achieve a rigid connection between the first connection portion 31 and the corner overlap edge 14 .

[0050] In this embodiment, the first connecting portion 31 of the reinforcement 3 and the corner overlapping edge 14 of the first top cover 1 are sealed and connected by a first sealing body 41, and are rigidly connected by multiple first welding points 51, thereby improving the connection strength between the reinforcement 3 and the first top cover 1, reducing or even eliminating the risk of failure of the airtightness between the reinforcement 3 and the first top cover 1 due to the force of the back hinge, improving the reliability of the seal, and further enhancing the waterproof and dustproof effects of the entire vehicle and improving the airtightness.

[0051] Furthermore, in some embodiments, Figure 7 and Figure 8 As shown, the first connection portion 31 is provided with a first sealing groove 37, and at least part of the structure of the first sealing body 41 is located in the first sealing groove 37. In this embodiment, the first sealing groove 37 can be used as a guide for glue extrusion and a glue storage for the first sealing body 41, reducing or even eliminating the risk of the first sealing body 41 being poorly bonded or overflowing, thereby improving the sealing effect. In addition, a gap will be generated between the first connection 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 be supplemented when a gap is generated, thereby ensuring the reliability of the airtight connection between the reinforcement member 3 and the first top cover 1.

[0052] Furthermore, if Figure 6-Figure 8As shown, the reinforcement 3 is also provided with a second connection part 34 and a fourth connection part 36 located at both ends of the first connection part 31, the second connection part 34 is used to connect with the side overlap edge 13, and the fourth connection part 36 is used to connect with the rear overlap edge 12. The automobile generally also includes a side panel 7 and a guide 6, the side panel 7 is located on both sides of the automobile in the width direction and connected with the side overlap edge 13, and the guide 6 is located at the rear of the automobile in the length direction to form a water flow channel. Among them, the reinforcement 3 is located at the bottom layer, and the guide 6, the side panel 7 and the first top cover 1 are overlapped on the reinforcement 3 in sequence and are sealed with the reinforcement 3, specifically, the guide 6, the side panel 7 and the side overlap edge 13 of the first top cover 1 are overlapped on the second connection part 34 of the reinforcement 3 in sequence, and the overlap surfaces of the side overlap edge 13 of the guide 6, the side panel 7 and the first top cover 1 and the second connection part 34 are all sealed and connected by the sealing structure 4, and are rigidly connected by the welding structure 5.

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

[0054] Further, in this embodiment, the first sealing body 41 is located in the first sealing groove 37, and the plurality of first welding points 51 can be arranged on a side of the first sealing groove 37 close to or away from the first top cover 1, so that the first welding point 51 is arranged on one side of the first sealing body 41. Preferably, the plurality of first welding points 51 are arranged on a side of the first sealing groove 37 away from the first top cover 1.

[0055] It can be understood that the first sealing body 41 can be formed by a paste or liquid sealant, or a solid sealing strip, preferably formed by a paste sealant. When assembling the automobile roof structure, the reinforcement 3 is first fixed to the vehicle body, and then the paste sealant is uniformly squeezed into the first sealing groove 37, so that the sealant fills the first sealing groove 37 and forms the above-mentioned first sealing body 41. Among them, the first sealing body 41 protrudes from the first sealing groove by 3-5mm, and the protruding part is used for the sealing connection between the reinforcement 3 and the first top cover 1, and the part stored in the first sealing groove 37 is used to supplement the gap change caused by thermal expansion and contraction and elastic deformation between the reinforcement 3 and the first top cover 1, so as to ensure the reliability of the seal.

[0056] In some embodiments, the reinforcement 3 is provided with a boss portion 32 extending around the first connection portion 31, and the boss portion 32 is located at the bottom of the body 11 and protrudes toward the body 11. Specifically, the two ends of the first connection portion 31 are connected to the second connection portion 34 and the fourth connection portion 36 respectively, and the two ends of the boss portion 32 are connected to the second connection portion 34 and the fourth connection portion 36. In this embodiment, the boss portion 32 can serve as a second protective barrier, and when the sealing of the first connection portion 31 and the corner overlap edge 14 fails, it plays a role in waterproofing and dustproofing, thereby ensuring the reliability of the sealing of the entire vehicle.

[0057] Furthermore, if Figure 6 As shown, the sealing structure 4 also includes two second sealing bodies 42, which are sealed and connected between the first top cover 1 and the reinforcement member 3, and the two second sealing bodies 42 are respectively located at the two 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, 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, and part of the structure extends to the boss portion 32. Among them, the part of the second sealing body 42 located on the first connecting portion 31 is sealed and connected between the first connecting portion 31 and the corner overlap edge 14, and the part of the second sealing body 42 extending to the boss portion 32 is sealed and connected between the boss portion 32 and the body 11. In this embodiment, by providing a second sealing body 42 at both ends of the first sealing body 41 and extending the second sealing body 42 to the boss portion 32, the second sealing body 42, the first sealing body 41 and the boss portion 32 jointly block water and the like from entering the vehicle, thereby further improving the reliability of sealing, enhancing the waterproof and dustproof effects of the entire vehicle, and improving the airtightness.

[0058] It should be noted that if Figure 4 As shown, along the height direction of the car, the boss portion 32 is upwardly protruding relative to the first connection portion 31, and correspondingly, the corner overlap edge 14 of the first top cover 1 is downwardly recessed relative to the body 11, so as to facilitate the connection between the corner overlap edge 14 and the first connection portion 31. In addition, the shapes and structures of the two second sealing bodies 42 may not be completely the same, and the two may be adaptively adjusted according to the shape and structure of the boss portion 32, as long as they can achieve the function of cooperating with the first sealing body 41 to prevent water 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 provided in the second sealing groove 38. Figure 6-Figure 8As shown, a second sealing groove 38 is provided on the boss portion 32, and at least a part of the structure of the second sealing body 42 near the fourth connecting portion 36 is provided in the second sealing groove 38. It can be understood that the second sealing body 42 can be formed of a paste or liquid sealant, or a solid sealing strip, preferably formed of a paste sealant, and its formation method is similar to that of the first sealing body 41, which will not be repeated here.

[0060] In some embodiments, the reinforcement 3 is provided with a flange portion 33 extending around the boss portion 32, the flange portion 33 is located at one end of the boss portion 32 away from the first connection portion 31, and is bent toward the direction close to the body 11. Specifically, the two ends of the flange portion 33 are respectively connected to the second connection portion 34 and the fourth connection portion 36. In this embodiment, the flange portion 33 can serve as a third protective barrier. When the airtightness of the first connection 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 portion 33 can play a role in waterproofing and dustproofing, thereby ensuring the reliability of the airtightness of the entire vehicle.

[0061] Further, the sealing structure 4 includes a third sealing body 43, and the third sealing body 43 is sealed and connected between the first top cover 1 and the reinforcement 3. The reinforcement 3 is provided with a second connection portion 34 for connecting with the side overlap edge 13, and the third sealing body 43 extends between the flange portion 33 and the second connection portion 34. It should be noted that the third sealing body 43 extends between the flange portion 33 and the second connection portion 34, and the third sealing body 43 can be partially located on the second connection portion 34, and partially located on the boss portion 32 and connected with the flange portion 33; or the third sealing body 43 can also be completely located on the second connection portion 34 and connected with the flange portion 33. Among them, the part of the third sealing body 43 located on the second connection portion 34 is sealed and connected between the second connection portion 34 and the side overlap edge 13. More specifically, the second connection portion 34 is overlapped with the guide member 6 and the side panel 7 in sequence, and the part of the third sealing body 43 located on the second connection portion 34 is sealed and connected between the side panel 7 and the side overlap edge 13. In this embodiment, the third sealing body 43 can prevent water, dust, etc. from penetrating into the vehicle through the end of the flange portion 33, further ensuring the reliability of sealing.

[0062] Further, of the two second sealing bodies 42, the first second sealing body 42 is located at one end of the first sealing body 41 close to the second connecting portion 34, and the second second sealing body 42 is located at one end of the first sealing body 41 close to the fourth connecting portion 36. In some cases, the two ends of the second second sealing body 42 are respectively connected to the first sealing body 41 and the flange portion 33 to further ensure the waterproof and dustproof reliability of the flange portion 33. It can be understood that the third sealing body 43 can be formed by a paste or liquid sealant, or a solid sealing strip, preferably formed by a paste sealant, and its formation method is similar to that of the first sealing body 41, which will not be repeated here.

[0063] In the technical solution of the present invention, a sealing surface is formed between the first connecting portion 31 of the reinforcement 3 and the corner overlap edge 14 of the first top cover 1, and the sealing surface of the two is sealed and connected by the first sealing body 41, and rigidly connected by multiple first welding points 51, and the first sealing body 41 is arranged in the first sealing groove 37 to improve the sealing effect. In the extreme state, when the first sealing body 41 is broken or aged, when the car is rained or washed, a small amount of water breaks through the waterproof function of the first sealing body 41 and enters the car, the boss portion 32 can effectively prevent the entry of water, forming a second waterproof barrier. Further, in the most extreme case, when the first sealing body 41 is broken or aged, and the excessive rainwater or car washing water leaked over the second waterproof barrier, that is, the boss portion 32, the flange portion 33 can cooperate with the third sealing body 43 and the second sealing body 42 to prevent the leaked water from entering the car, and form a third waterproof barrier for the leakage of the sealing surface of the automobile reinforcement 3 and the first top cover 1. Furthermore, in the design of the entire reinforcement 3 and the automobile assembly, the automobile roof structure forms a natural posture with a high front and a low rear. Even if the first sealing body 41 as mentioned above fails to seal, the second and third waterproof barriers can cooperate with the second sealing body 42 and the third sealing body 43 to block the leaked rainwater or car wash water on the reinforcement 3; when the vehicle is in a horizontal state or a high front and a low rear state, the leaked rainwater or car wash water will automatically seep out of the vehicle again along the leakage gap and be discharged to the outside of the vehicle along the guide member 6, thereby not causing pollution to the interior of the vehicle and eliminating the risk of poor user experience.

[0064] Furthermore, a first protective layer is provided at the edge of the corner overlap 14 to prevent the corner overlap 14 from rusting due to long-term contact with water vapor, etc., thereby improving the service life and aesthetics of the first top cover 1, and further enhancing the user experience. It can be understood that the first protective layer can be a coating layer, a passivation layer, a plating layer, etc., as long as it can improve the corrosion resistance of the corner overlap 14.

[0065] Furthermore, if 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 welding point 52 and a third welding point 53. The fourth sealing body 44 is sealed and connected between the fourth connecting portion 36 and the tail lap edge 12, and the fourth sealing body 44 is connected to the first sealing body 41. The fourth connecting portion 36 is connected to the tail lap edge 12 through a plurality of second welding points 52, and the plurality of second welding points 52 can be arranged on the fourth sealing body 44, or on one side of the fourth sealing body 44, and the plurality of second welding points 52 are arranged at intervals along the extension direction of the fourth sealing body 44. The fifth sealing body 45 is sealed and connected between the second connection part 34 and the side overlap edge 13. More specifically, the air guide 6, the side panel 7 and the side overlap edge 13 of the first top cover 1 are overlapped on the second connection part 34 in sequence. The fifth sealing body 45 can be arranged between the overlap surface of the second connection part 34 and the air guide 6, between the overlap surface of the second connection part 34 and the side panel 7, and between the overlap surface of the second connection part 34 and the side overlap edge 13. The overlap of the air guide 6, the side panel 7, the side overlap edge 13 and the second connection part 34 can be connected by a plurality of third welding points 53. The plurality of third welding points 53 can be arranged on the fifth sealing body 45 or on one side of the fifth sealing body 45. The plurality of third welding points 53 are arranged at intervals along the extension direction of the fifth sealing body 45.

[0066] It is understandable that the fourth sealing body 44 and the fifth sealing body 45 can be formed of paste or liquid sealant, or can be solid sealant strips, preferably formed of paste sealant. The second welding point and the third welding point 53 can be formed by spot welding.

[0067] Furthermore, the reinforcement member 3 is provided with a third connection portion 35, which is located on a side of the first connection portion 31 away from the first top cover 1, and is used to install the back door hinge. The second connection portion 34, the first connection portion 31 and the fourth connection portion 36 are connected in sequence and are arranged together on the outside of the third connection portion 35 to connect with other structures and play a good supporting role.

[0068] Furthermore, the automobile roof structure also includes a second roof 2, which is connected to the first roof 1 and the reinforcement 3, and the second roof 2 covers the third connection portion 35. It can be understood that there are two second roofs 2, and the two second roofs 2 are respectively arranged at the corner overlap edges 14 at both ends of the rear of the first roof 1. In this embodiment, before installing the second roof 2, the back hinge is installed on the third connection portion 35, which can effectively reduce the difficulty of installing the back hinge. In addition, the automobile roof is designed as a split structure of the first roof 1 and the second roof 2, which can effectively reduce the difficulty of producing the automobile roof, improve production efficiency and reduce production costs.

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

[0070] For example, Figure 5-Figure 8 As shown, at least one first connection hole 15 is provided on the corner overlap edge 14, and correspondingly, at least one second connection hole 39 is provided on the first connection portion 31, and each first connection hole 15 is arranged opposite to and connected to each second connection hole 39. Fig.10 As described, at least one connecting member 22 is provided on the second top cover 2, and each connecting member 22 is inserted into the first connecting hole 15 and the second connecting hole 39 which are arranged opposite to each other, so as to connect the second top cover 2 to the first top cover 1 and the reinforcement member 3. Exemplarily, the connecting member 22 can be a waterproof clip, which is clipped to the first top cover 1 and the reinforcement member 3 through the first connecting hole 15 and the second connecting hole 39, and the waterproof clip can play the role of waterproofing and dustproofing the first connecting hole 15 and the second connecting hole 39.

[0071] Specifically, Figure 2 and Fig.10 As shown, the second top cover 2 includes a main body 21, and the main body 21 has a first side surface 211, a second side surface 212 and a third side surface 213 connected in sequence, wherein the first side surface 211 is an arc surface, and is consistent with the extension direction of the corner overlap edge 14, and the first side surface 211 is used to fit the corner overlap edge 14. The second side surface 212 is arranged facing the side panel 7, and the second side surface 212 is provided with an overlap portion 23, which extends in a direction away from the main body 21, and the overlap portion 23 is used to connect with the second connection portion 34, such as by sealing connection with a sealant. In some cases, the second connection portion 34 is overlapped with the above-mentioned deflector 6 and the side panel 7 in sequence, and the overlap portion 23 can be indirectly connected to the second connection portion 34 through the deflector 6 or the side panel 7. The third side surface 213 is connected with the rear overlap edge 12, that is, the third side surface 213 faces the rear of the car. A rib portion 24 is disposed on the third side surface 213 . The rib portion 24 is bent toward the bottom of the main body 21 . The rib portion 24 is used to shield the third connecting portion 35 to improve the aesthetics of the automobile roof structure.

[0072] Exemplarily, three connecting members 22 may be provided on the main body 21, and the three connecting members 22 are respectively provided near the first side surface 211, the second side surface 212, and the third side surface 213. Correspondingly, three first connecting holes 15 and three second connecting holes 39 are respectively provided on the corner overlap edge 14 and the first connecting portion 31, and each connecting member 22, first connecting hole 15, and second connecting hole 39 corresponds to each other. It can be understood that the above-mentioned connecting member 22, first connecting hole 15, and second connecting hole 39 can also be set to one, two, four, five, or other numbers, 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 corrosion resistance 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 a second protective layer can be provided on its surface. Such a configuration can improve the corrosion resistance of the second top cover 2, thereby improving the service life and aesthetics of the second top cover 2 and enhancing the user experience. Among them, the second protective layer can be a coating layer, a passivation layer, a plating layer, etc., as long as it can play the role of improving the corrosion resistance of the second top cover 2.

[0074] The technical solution of the present invention is based on the traditional automobile roof, and the automobile roof is divided into a first roof 1 and a second roof 2, and the area of ​​the automobile roof that is prone to water leakage, air leakage and rust due to loose adhesion or aging is specially designed, which not only can completely solve the problem of poor body waterproofing, dustproofing and air tightness at the hinge of the hatchback car back door; at the same time, it can also solve the difficult problems of complex design, high cost and difficult installation caused by the hatchback door hinge being hidden in the lower part of the automobile roof; and through the anti-corrosion design of the edge of the diagonal overlap edge 14 and the second roof 2, the problem of easy rust of the automobile roof is solved; in addition, the automobile roof is divided into the first roof 1 and the second roof 2, which simplifies the structure of the roof 101 and effectively reduces the difficulty of stamping production of automobile roofs.

[0075] The embodiment of the present invention also provides a car, including a car body, the top of the car body is provided with the above-mentioned car roof structure, and the car body is provided with side panels 7 and air guide 6. The reinforcement member 3 of the car roof structure is fixedly installed on the car body, such as on the cross beam on the top of the car body. The reinforcement member 3 can be a stamped sheet, the reinforcement member 3 is located at the bottom layer, and its upper part overlaps the air guide 6, the side panels 7 and the first top cover 1 in sequence, and the overlapping surfaces of the reinforcement member 3, the air guide 6, the side panels 7 and the first top cover 1 are all sealed and connected, and specifically can be connected by the above-mentioned sealing structure 4 and welding structure 5.

[0076] Since the automobile of the present invention adopts the above-mentioned automobile roof structure, the reliability of the sealing of the entire vehicle is effectively improved, the overall waterproof, dustproof effect and airtightness are guaranteed, and the consumer satisfaction is greatly improved.

[0077] 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 change made by a person skilled in the art based on the present invention is within the protection scope of the present invention.

Claims

1. A car roof structure, characterized in that: include: The first top cover (1) comprises a body (11) and a tail lap edge (12), a side lap edge (13) and a corner lap edge (14) arranged at the edge of the body (11); the tail lap edge (12) is located at the tail of the body (11), the side lap edge (13) is located at the side of the body (11), and the corner lap edge (14) is connected between the tail lap edge (12) and the side lap edge (13); A reinforcement member (3) for mounting a back door hinge; the reinforcement member (3) is provided with a first connection portion (31), the first connection portion (31) is located at the bottom of the corner overlap edge (14), and is connected to the corner overlap edge (14) via a plurality of first welding points (51); The first sealing body (41) is sealingly connected between the corner lap edge (14) and the first connecting portion (31), and two ends thereof are respectively connected to the tail lap edge (12) and the side lap edge (13).

2. The automobile roof structure according to claim 1, characterized in that: A first sealing groove (37) is provided on the first connecting portion (31), 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 reinforcement member (3) is provided with a boss portion (32) extending around the first connection portion (31); the boss portion (32) is located at the bottom of the body (11) and is arranged to protrude toward the body (11).

4. The automobile roof structure according to claim 3, characterized in that: The automobile roof structure further comprises two second sealing bodies (42), wherein the second sealing bodies (42) are sealingly connected between the first roof (1) and the reinforcement (3), and the two second sealing bodies (42) are respectively located at two 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).

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

6. The automobile roof structure according to claim 5, characterized in that: The automobile roof (101) comprises a third sealing body (43), wherein the third sealing body (43) is sealingly connected between the first roof (1) and the reinforcing member (3); the reinforcing member (3) is provided with a second connecting portion (34) for connecting to the side lap edge (13), and the third sealing body (43) extends between the flange portion (33) and the second connecting portion (34).

7. The automobile roof structure according to any one of claims 1 to 6, characterized in that: The edge of the corner overlap edge (14) is provided with a first protective layer.

8. The automobile roof structure according to any one of claims 1 to 6, characterized in that: The reinforcement member (3) is provided with a third connection portion (35), the third connection portion (35) is located on a side of the first connection portion (31) away from the first top cover (1), and the third connection portion (35) is used to install a back door hinge; The automobile roof structure further comprises a second roof (2), wherein the second roof (2) is connected to the first roof (1) and the reinforcement (3), and the second roof (2) covers the third connecting portion (35).

9. The automobile roof structure according to claim 8, characterized in that: The material of the second top cover (2) is plastic, or a second protective layer is provided on the surface of the second top cover (2).

10. An automobile, comprising a vehicle body, characterized in that: The top of the vehicle body is provided with a vehicle roof structure as described in any one of claims 1-9.

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