A panoramic sunroof reinforcement ring and its connection structure

Abstract

The present invention discloses a panoramic sunroof reinforcement ring and a connection structure thereof, including a panoramic sunroof reinforcement ring and a connection structure for the panoramic sunroof reinforcement ring to cooperate with a top cover and a side enclosure welding assembly to realize the installation and fixation of the panoramic sunroof; the panoramic sunroof reinforcement ring is provided with a front fixing structure and a side fixing structure of the panoramic sunroof. In the present invention, the panoramic sunroof reinforcement ring is designed to be integrated with the front crossbeam, and the panoramic sunroof reinforcement ring is connected to the front crossbeam support plate of the top cover, so that it supports the front installation point of the panoramic sunroof reinforcement ring, improves the connection strength, reduces the dedicated front side connection structure, improves the connection stability, improves the double-line connection design to be connected only with a side connection bracket; cancels the side bonding edge design, solves the technical problem that the structural adhesive is easy to fall off and produce abnormal noise; at the same time, on the basis of canceling the side bonding edge design, the top cover can be designed as an equal width design.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile parts, and more particularly to a panoramic sunroof reinforcement ring and a connection structure thereof. Background Art

[0002] The automotive consumer market has increasingly higher requirements for the functions and usage scenarios of automobiles, and the panoramic sunroof configuration is popular among users. The panoramic sunroof reinforcement ring and the connection structure with the car body are important body structure and performance parts of the roof;

[0003] The existing patent document with patent publication number CN106080142A (i.e., comparative document 1) discloses a sunroof reinforcement ring structure and a vehicle, which is applied to a roof with a top cover and a side panel using spot welding technology. The inner flange 127 of the panoramic sunroof reinforcement ring sunroof opening 12 is laser welded to a welding assembly with the top cover opening flange; at the same time, the inner ring surface 128 of the reinforcement ring is bonded to the large surface of the top cover by structural adhesive to improve the inner connection strength of the sunroof opening. The side of the top cover welding assembly 1 formed by welding the panoramic sunroof reinforcement ring 12 and the top cover 11 is overlapped and spot welded with the left side welding edge 33 of the side panel welding assembly and the right side welding edge 43 of the side panel welding assembly.

[0004] However, this type of panoramic sunroof reinforcement ring has a low material utilization rate due to the large opening of the panoramic sunroof. In addition, large panoramic sunroofs usually correspond to large and medium-sized SUVs or sedans, and the width of the roof split is inconsistent front to back, resulting in a large difference in the front and rear width of the panoramic sunroof reinforcement ring. The notch design on the side of the panoramic sunroof reinforcement ring to avoid four-layer welding or luggage rack mounting brackets has a relatively large impact on consumables.

[0005] The patent document with patent announcement number CN213108941U discloses a connection structure between a sunroof reinforcement ring and a side panel, wherein the top cover and the side panel adopt laser welding technology. Due to the high production efficiency of laser welding technology, its application is gradually popularized. After the top cover and the side panel adopt laser welding 6, the left side edge of the panoramic sunroof reinforcement ring and the right side edge 122 of the panoramic sunroof reinforcement ring cannot be welded with the left side welding edge 33 of the side panel welding assembly and the right side welding edge 43 of the side panel welding assembly due to limited welding channels. The left side edge of the panoramic sunroof reinforcement ring and the right side edge 122 of the panoramic sunroof reinforcement ring are bonded to the side of the side panel welding assembly by structural adhesive 7. The structural adhesive is easy to fall off and produce abnormal noise, and the reliability is insufficient. The side bracket 8 is added here. The side bracket 8 is screwed on the side wall on one hand, and screwed with the panoramic sunroof reinforcement ring 9 on the other hand, so that the side forms a double connection of the panoramic sunroof reinforcement ring side bonding and the connection bracket bracket screw connection. The main frame of the panoramic sunroof of CN213108941U is consistent with CN106080142A. In general vehicle models, a total of eight side brackets 8 with the panoramic sunroof reinforcement ring are added on the left and right sides. The initial calculation shows that the weight of the eight screwed side brackets is 1.6KG. The panoramic sunroof reinforcement ring and the connection structure under the roof of the laser welding technology are net reinforced by eight screwed side brackets 8 compared with the roof of the spot welding technology. There is a certain excess in the rigidity of the parts, and there is room for optimization.

[0006] The patent document with patent announcement number CN102951203A discloses "a reinforcement frame and a method for installing a reinforcement frame in a car body". The reinforcement frame is formed by connecting a first sub-frame and a second sub-frame to achieve high torsional rigidity and light components. The first sub-frame is made into a ring shape, and the second sub-frame is a ring shape. After the first ring sub-frame is welded to the left and right roof frames on the white body, the second ring sub-frame welded to the roof shell is placed on it, and the roof frame and the roof shell are welded, and the flange of the first ring reinforcement frame is welded to the flange of the second ring reinforcement frame. Although the torsional rigidity can meet the performance requirements, the panoramic sunroof reinforcement ring is composed of a first ring reinforcement ring and a second ring reinforcement ring, which produces waste in two middle opening parts and has poor economic efficiency. The flanges of the first ring reinforcement ring and the second ring reinforcement ring are welded together to form a ring shape around the body, which is easy to cause flange misalignment and difficulty in placing parts, and the production process is difficult to implement.

[0007] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 The inner flange 127 of the panoramic sunroof reinforcement ring 12 is laser welded to the top cover opening flange to form a welding assembly. The inner ring surface 128 of the reinforcement ring is bonded to the large surface of the top cover by structural adhesive to improve the inner connection strength of the sunroof opening. Partial expansion adhesive 7 is set in the middle to bond with the top cover 11. The top cover welding assembly 1 formed by welding the panoramic sunroof reinforcement ring 12 and the top cover 11 is for spot welding the side wall and the top cover of the body, such as Figure 2As shown, the top cover is provided with a top cover left side welding edge 111 / top cover right side welding edge 112, the panoramic sunroof reinforcement ring 12 is provided with a panoramic sunroof reinforcement ring left side edge 121 / panoramic sunroof reinforcement ring right side edge 122, the top cover welding assembly 1 and the left side surround welding assembly 3 / right side surround welding assembly 4 are welded at the left side welding edge 33 / right side welding edge 43; for the laser welding of the side surround and the top cover to the body, as shown in FIG. Figure 3 As shown, the top cover 11 and the top of the side panel are laser welded, the panoramic sunroof reinforcement ring is provided with a panoramic sunroof reinforcement ring left side edge 121 / panoramic sunroof reinforcement ring right side edge 122, and is bonded with the left side panel welding assembly 3 / right side panel welding assembly 4 at the left side welding edge 33 / right side welding edge 43 by structural adhesive 7; the structural adhesive bonding is easy to fall off, and at the same time, the screw connection bracket 8 is used for screw reinforcement to prevent the structural adhesive from falling off and making abnormal noises. The structural strength design of the parts is excessive, such as Figure 4 As shown, the styling causes a difference in roof width front to rear.

[0008] The panoramic sunroof reinforcement ring weighs about 20 kg and is a medium-to-large part of the car body. The panoramic sunroof reinforcement ring and its connecting structure account for a large proportion of the car body. The optimization and lightweight design of the panoramic sunroof reinforcement ring structure are the key innovation directions in the car body field.

[0009] The technical problem to be solved by the present invention is how to improve the connection stability between the reinforcement ring and the side panel and optimize the structural block design of the panoramic sunroof reinforcement ring.

[0010] The present invention solves the above-mentioned technical problems through the following technical means: a panoramic sunroof reinforcement ring and a connecting structure thereof, comprising a panoramic sunroof reinforcement ring and a connecting structure thereof connected to a top cover and a side panel welding assembly, for realizing the installation and fixation of the panoramic sunroof; the panoramic sunroof reinforcement ring is provided with a front fixing point and a side fixing point of the panoramic sunroof; the panoramic sunroof reinforcement ring is provided with a complete panoramic sunroof positioning structure, the panoramic sunroof reinforcement ring eliminates the bonding or welding part of the side surface of the panoramic sunroof reinforcement ring and the side welding edge of the side panel welding assembly overlapping, eliminates the side edge of the shape restriction part, the connecting structure includes a side connecting bracket, the panoramic sunroof reinforcement ring is connected to the side panel through the side connecting bracket; the inner side of the panoramic sunroof reinforcement ring opening is provided with an inner flange and the inner side of the panoramic sunroof reinforcement ring is fixed to the top cover opening flange by laser welding, and the inner ring surface of the panoramic sunroof reinforcement ring is bonded and fixed to the large surface of the top cover.

[0011] The panoramic sunroof reinforcement ring is provided with a complete panoramic sunroof positioning structure, which is convenient for precision control. Compared with comparative document 1, the bonding or welding part of the side and side panel welding edge overlapped by the side welding assembly is cancelled, and the side edge with styling restriction is cancelled. After the inner flange of the panoramic sunroof reinforcement ring opening and the top cover opening flange are laser welded and fixed, the inner ring surface of the reinforcement ring and the large surface of the top cover are bonded by structural adhesive, which improves the inner connection strength of the panoramic sunroof reinforcement ring opening.

[0012] As an optimal technical solution, the front part of the panoramic sunroof reinforcement ring extends forward and is welded and fixed to the top cover, and is fastened to the front crossbeam support plate of the top cover fixed on the side panel welding assembly; the front part of the panoramic sunroof reinforcement ring is formed with a front welding edge of the panoramic sunroof reinforcement ring, and the front welding edge of the panoramic sunroof reinforcement ring is welded and fixed to the top cover and the front crossbeam support plate of the top cover; the panoramic sunroof reinforcement ring is provided with an inner ring surface of the reinforcement ring at the sunroof opening, and the inner ring surface of the reinforcement ring is abutted against the inner wall of the top cover and fixed by structural adhesive, and the inner flange and the top cover opening flange are fixed by laser welding.

[0013] The panoramic sunroof reinforcement ring is connected to the front crossbeam support plate of the roof and fastened to the side panel, and the panoramic sunroof reinforcement ring is integrated with the front crossbeam. The panoramic sunroof reinforcement ring is connected to the front crossbeam support plate of the roof to support the front installation point of the panoramic sunroof reinforcement ring, thereby improving the connection strength, reducing the dedicated front side connection structure, and improving the connection stability.

[0014] As an optimal technical solution, the connecting structure also includes a rear mounting crossbeam, which is provided with a rear fixing point of the panoramic sunroof. The rear mounting crossbeam bears the force on the rear of the panoramic sunroof, which is conducive to reducing the load-bearing force of the integral panoramic sunroof reinforcement ring. A left side welding edge and a right side welding edge are respectively provided on both sides of the rear mounting crossbeam, and the left side welding edge and the right side welding edge are respectively welded and fixed to the side panel welding assembly, and the rear mounting crossbeam is overlapped and spot welded with the side panel welding assembly through the left side welding edge and the right side welding edge. Through the front crossbeam support plate of the top cover and the connection of the top cover to the panoramic sunroof reinforcement ring and the independent rear mounting crossbeam design, the load-bearing force of the panoramic sunroof reinforcement ring and the side connecting bracket is reduced, the structure and number of the side connecting brackets are simplified, and the difficulty of matching the side connecting brackets with the panoramic sunroof reinforcement ring is reduced.

[0015] As a preferred technical solution, the rear mounting crossbeam is provided with a plurality of rear mounting bosses connected to the panoramic sunroof, and all the rear mounting points of the panoramic sunroof are arranged on the rear mounting crossbeam. The cross-sectional width of the rear mounting crossbeam is 80-130 mm. By adding the rear mounting crossbeam, it forms an opposition with the front crossbeam included in the integrated panoramic sunroof reinforcement ring, thereby ensuring that the overall length of the panoramic sunroof reinforcement ring is consistent.

[0016] As an optimal technical solution, the front cross beam support plate of the top cover includes a left support plate of the front cross beam of the top cover and a right support plate of the top cover. The left support plate of the front cross beam of the top cover is welded and fixedly connected to the front of the top cover through the left front welding edge formed at its end. The left support plate of the front cross beam of the top cover is fastened to the panoramic sunroof reinforcement ring by bolts. The left support plate of the front cross beam of the top cover is provided with screw holes that are compatible with the bolts. The right cross beam support plate of the top cover has the same structure as the left support plate of the front cross beam of the top cover.

[0017] As a preferred technical solution, the panoramic sunroof reinforcement ring has the same width on both sides, and its side width is 55-75mm. The panoramic sunroof reinforcement ring is provided with a panoramic sunroof side positioning hole and a side mounting boss on the side; the rear section width of the panoramic sunroof reinforcement ring is 55-75mm, and the rear of the panoramic sunroof reinforcement ring is provided with a panoramic sunroof rear positioning hole; the front fixing structure includes a positioning hole and a front mounting boss; the front, side and rear of the panoramic sunroof reinforcement ring are provided with a positioning structure adapted to the panoramic sunroof, which is convenient for precision control. The panoramic sunroof reinforcement ring adopts an equal width design, with less waste, thereby improving the utilization rate of waste;

[0018] As a preferred technical solution, the connecting structure includes a side connecting bracket, and both sides of the panoramic sunroof reinforcement ring are connected to the side panel welding assembly through the side connecting bracket, one end of the side connecting bracket is screwed and fixed to the panoramic sunroof reinforcement ring, and the other end is welded and fixed to the side panel welding assembly, the side panel welding assembly includes a left side panel welding assembly and a right side panel welding assembly with the same structure, the left side panel welding assembly and the right side panel welding assembly are respectively located on both sides of the panoramic sunroof reinforcement ring, and the side connecting bracket includes a left side connecting bracket and a right side connecting bracket.

[0019] As a preferred technical solution, the left side connecting bracket is welded and fixed to the left side surround welding assembly through the left side welding edge, and the left side connecting bracket is fastened to the panoramic sunroof reinforcement ring through the left screw connection structure.

[0020] As a preferred technical solution, the panoramic sunroof reinforcement ring is provided with a side mounting point structure adapted to the side connecting bracket.

[0021] As an optimal technical solution, the top cover is provided with a front welding edge of the top cover and a left side welding edge and a right side welding edge of the top cover respectively formed on both sides of the top cover. The front welding edge of the top cover is welded and fixed to the left front welding edge and the front welding edge of the panoramic sunroof reinforcement ring.

[0022] The advantages of the present invention are:

[0023] (1) In the present invention, the panoramic sunroof reinforcement ring is designed to be integrated with the front crossbeam by extending the front portion of the panoramic sunroof reinforcement ring forward and welding it to the top cover, and fastening it to the top cover front crossbeam support plate on the side enclosure. The panoramic sunroof reinforcement ring is connected to the top cover front crossbeam support plate so that it supports the front mounting point of the panoramic sunroof reinforcement ring, thereby improving the connection strength, reducing the dedicated front side connection structure, and improving the connection stability. The panoramic sunroof reinforcement ring is used as the installation and fixing structure of the panoramic sunroof, which is convenient for precision control. The double-line connection design in Comparative Document 1 is improved to be connected only by the side connection bracket; the side bonding edge design is eliminated, thereby solving the technical problem that the structural adhesive is easy to fall off and produce abnormal noise; and at the same time, on the basis of eliminating the side bonding edge design, the top cover can be designed to be of equal width.

[0024] (2) In the present invention, the front portion of the panoramic sunroof reinforcement ring is extended forward and welded to the top cover, and is fastened to the side enclosure through the front crossbeam support plate of the top cover, thereby eliminating the original bonding structure. The widths of both sides of the panoramic sunroof reinforcement ring can be set to be equal, and the cross-sectional width is 55-75mm. Based on the cross-sectional width of the side of the sunroof opening of 65mm and the panoramic sunroof reinforcement ring of 1370x870, the consumables are reduced by 3-5KG, less waste is produced, the material utilization rate is improved, and the consumables are reduced.

[0025] (3) In the present invention, the side bearing force of the panoramic sunroof reinforcement ring is optimized. The front part of the panoramic sunroof reinforcement ring extends forward and is welded and fixed to the top cover, and is connected and fastened to the front crossbeam support plate of the top cover fixed to the side panel welding assembly, so that the front crossbeam and the sunroof reinforcement ring are designed as an integrated structure, and the front crossbeam support plate of the top cover and the welding with the front part of the top cover are used to bear the force of the four front installation points; an independent sunroof reinforcement ring is set to install a crossbeam behind it, and the four rear installation points of the sunroof are set to install a crossbeam behind the sunroof reinforcement ring, so that the side connection bracket only bears the force of the side installation points, and the bracket design is simplified.

[0026] (4) In the present invention, the added rear mounting cross beam is opposed to the front cross beam included in the integrated panoramic sunroof reinforcement ring, thereby ensuring that the overall length of the panoramic sunroof reinforcement ring is consistent; the four mounting points at the rear of the panoramic sunroof are set on the rear mounting cross beam; the rear mounting cross beam is overlapped and spot-welded with the side panel welding assembly through the left side welding edge and the right side welding edge, thereby improving the rear connection strength and eliminating the dedicated rear side connection structure.

[0027] (5) In the present invention, by changing the side connection bracket from being screwed to the side enclosure to being welded to the side enclosure, the efficiency is improved, the number of side connection brackets is reduced, and the difficulty of matching the side connection bracket with the panoramic sunroof reinforcement ring is reduced.

[0028] (6) In the present invention, the panoramic sunroof reinforcement ring and the connection structure can be used for the roof of the car using spot welding and laser welding technology, and the technical value of the panoramic sunroof reinforcement ring and the connection structure is particularly greater when used for the roof of the car using laser welding technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of the structure of a panoramic sunroof reinforcement ring provided as the background technology of the present invention;

[0030] Figure 2 A schematic diagram of a spot-welded cross-sectional structure of a roof cover provided as the background technology of the present invention;

[0031] Figure 3 A schematic diagram of the laser welding cross-sectional structure of a roof cover provided as the background technology of the present invention;

[0032] Figure 4 A schematic diagram of the width structure of a roof cover provided as the background technology of the present invention;

[0033] Figure 5 A bottom-up structural schematic diagram of a panoramic sunroof reinforcement ring and its connecting structure provided in an embodiment of the invention;

[0034] Figure 6 A schematic diagram of a top view of a panoramic sunroof reinforcement ring and a connection structure thereof provided by an embodiment of the present invention;

[0035] Figure 7 A schematic diagram of a roof front crossbeam support plate structure of a panoramic sunroof reinforcement ring and its connection structure provided by an embodiment of the present invention;

[0036] Figure 8 A schematic diagram of the front cross-sectional structure of a panoramic sunroof reinforcement ring and its connecting structure provided by an embodiment of the present invention;

[0037] Fig. 9 A schematic diagram of a rear-mounted crossbeam structure of a panoramic sunroof reinforcement ring and its connecting structure provided by an embodiment of the present invention;

[0038] Fig.10 A schematic diagram of a side connecting bracket structure of a panoramic sunroof reinforcement ring and its connecting structure provided by an embodiment of the present invention;

[0039] Fig.11 A schematic diagram of a side cross-sectional structure of a panoramic sunroof reinforcement ring and a connecting structure thereof provided by an embodiment of the present invention;

[0040] Fig.12 A schematic diagram of the rear cross-sectional structure of a panoramic sunroof reinforcement ring and its connecting structure provided by an embodiment of the present invention;

[0041] Figure numbers: 1. Top cover welding assembly; 11. Top cover; 111. Top cover left side welding edge; 112. Top cover right side welding edge; 113. Top cover front welding edge; 12. Panoramic sunroof reinforcement ring; 121. Panoramic sunroof reinforcement ring left side; 122. Panoramic sunroof reinforcement ring right side; 123. Panoramic sunroof reinforcement ring front welding edge; 124. Positioning hole; 125. Front mounting boss; 126. Side mounting boss; 127. Inner flange; 128. Inner ring surface of reinforcement ring; 129. Rear of panoramic sunroof reinforcement ring; 2. Top cover front crossbeam; 3. Left side surround welding assembly; 31. Left support plate of top cover front crossbeam ; 311, left front welding edge; 312, screw hole; 32, left side connecting bracket; 321, left side welding edge; 322, left screw connection structure; 33, left side welding edge of side panel welding assembly; 4, right side panel welding assembly; 41, right crossbeam support plate of top cover; 411, right front welding edge; 42, right side connecting bracket; 421, right side welding edge; 422, right screw connection structure; 43, right side welding edge of side panel welding assembly; 5, rear mounting crossbeam; 51, left side welding edge; 52, right side welding edge; 53, rear mounting boss; 6, laser welding point; 7, structural adhesive; 8, side bracket; 9, bolts. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] See also Figure 1 , a schematic diagram of the structure of the panoramic sunroof reinforcement ring provided by the background technology; see Figure 2 , see Figure 3 Background technology lower cross-sectional structure schematic diagram; see Figure 4 , a schematic diagram of the width structure of the roof cover under the background technology, and a schematic diagram of the front and rear width difference of the panoramic sunroof reinforcement ring caused by the roof shape;

[0044] See also Figure 5A panoramic sunroof reinforcement ring and a connection structure thereof, comprising a panoramic sunroof reinforcement ring 12, a left side connecting bracket 32, a right side connecting bracket 42, a left support plate 31 of a front cross beam of a top cover, a left support plate 41 of a front cross beam of a top cover, and a rear mounting cross beam 5, which are connected to a top cover 11 and a side panel welding assembly; the panoramic sunroof reinforcement ring 12 is an installation and fixing structure of the panoramic sunroof, which is convenient for precision control, and the rear mounting cross beam 5 is a rear mounting structure of the panoramic sunroof, and the panoramic sunroof reinforcement ring 12 has no rear mounting structure, and a front fixing structure and a side fixing structure of the panoramic sunroof are provided on the panoramic sunroof reinforcement ring 12; the panoramic sunroof reinforcement ring 12 cancels the bonding or welding part of the side surface of the panoramic sunroof reinforcement ring and the side welding edge of the side panel welding assembly, and the panoramic sunroof reinforcement ring 12 is connected to the left side panel welding assembly through the left side connecting bracket 32. The panoramic sunroof reinforcement ring 12 is connected to the left side surrounding welding assembly 3 and is connected to the right side surrounding welding assembly 4 through the right side surface connecting bracket 42; in this embodiment, the panoramic sunroof reinforcement ring 12 includes an integrally formed top cover front cross beam 2 and a panoramic sunroof reinforcement ring body, the panoramic sunroof reinforcement ring 12 adopts an integrated design, the front part of the panoramic sunroof reinforcement ring 12 extends forward and is fixed to the top cover 11 by spot welding or laser welding, and is connected and fastened to the left side surrounding welding assembly 3 through the left support plate 31 of the top cover front cross beam and to the right side surrounding welding assembly 4 through the right support plate 41 of the top cover front cross beam, the inside of the panoramic sunroof reinforcement ring 12 is overlapped with the top cover front cross beam support plate and then screwed, an inner flange is provided on the inner side of the opening of the panoramic sunroof reinforcement ring 12 and it is fixed to the opening flange of the top cover 11 by laser welding, and the inner circle surface of the panoramic sunroof reinforcement ring 12 is bonded and fixed to the large surface of the top cover.

[0045] Compared with the prior art, the left side 121 and the right side 122 of the panoramic sunroof reinforcement ring 12 extending to the side panel welding assembly are cancelled, and the connection strength of the panoramic sunroof reinforcement ring 12 is increased by integrating the panoramic sunroof reinforcement ring body and the front cross beam 2, welding the top cover 11 and the top cover front cross beam support plate at the front, and screwing the internal lap joint structure of the panoramic sunroof reinforcement ring 12 to the top cover front cross beam support plate. Compared with the technical solution in the background technology, the dedicated front side connection structure is reduced.

[0046] See also Figure 6 , Figure 8The panoramic sunroof reinforcement ring 12 includes a front welding edge 123 of the panoramic sunroof reinforcement ring, a positioning hole 124, a front mounting boss 125, a side mounting boss 126, an inner flange 127, an inner ring surface 128 of the reinforcement ring, and a rear portion 129 of the panoramic sunroof reinforcement ring. The front portion of the panoramic sunroof reinforcement ring 12 is formed with a front welding edge 123 of the panoramic sunroof reinforcement ring. The top cover 11 includes a front welding edge 113 of the top cover and a left side welding edge 111 and a right side welding edge 112 of the top cover respectively formed on the left and right sides of the top cover 11. The front welding edge 113 of the top cover is welded and fixed to the left front welding edge 311 and the front welding edge 123 of the panoramic sunroof reinforcement ring. The front welding edge 113 of the top cover is welded and fixed to the front welding edge 123 of the panoramic sunroof reinforcement ring. A plurality of positioning holes 124 are provided on the panoramic sunroof reinforcement ring 12, wherein the front positioning holes 124 One, two side positioning holes 124 on the left and right, and one rear positioning hole 124. The front of the panoramic sunroof reinforcement ring 12 is formed with a plurality of front mounting bosses 125, and the two sides of the panoramic sunroof reinforcement ring 12 are respectively formed with a plurality of side mounting bosses 126; the positioning holes 124, the front mounting bosses 125, and the side mounting bosses 126 are used to position and fix the panoramic sunroof to be installed, wherein, in order to facilitate manufacturing and precision control, the panoramic sunroof installation positioning system is still unified on the main part of the panoramic sunroof reinforcement ring 12, and no split design is performed. The inner side of the opening of the panoramic sunroof reinforcement ring 12 is provided with an inner flange 127 and a reinforcement ring inner ring surface 128 that are compatible with the flange structure. The reinforcement ring inner ring surface 128 is in contact with the inner wall of the top cover 11 and is bonded and fixed by the structural adhesive 7. The inner flange 127 and the opening flange of the top cover 11 are fixed by laser welding; refer to Figure 6 The width of the panoramic sunroof reinforcement ring 12 on both sides is the same, and its side width S1 is 55-75mm. A positioning hole 124 is opened at the rear portion 129 of the panoramic sunroof reinforcement ring. The cross-sectional width S2 of the rear portion 129 of the panoramic sunroof reinforcement ring is 55-75mm. Fig.12 The cross-sectional width of the rear-mounted crossbeam is S3, which is 80-130mm. It extends forward through the front of the panoramic sunroof reinforcement ring 12 and is welded and fixed to the top cover 11, and is fastened to the side panel welding assembly through the front crossbeam support plate of the top cover. The original bonding structure is cancelled, and the widths on both sides of the panoramic sunroof reinforcement ring 12 can be set to be equal, with a cross-sectional width of 55-75mm, less waste, and improved material utilization.

[0047] See also Figure 7The front cross beam support plate of the roof comprises a left front cross beam support plate 31 and a right cross beam support plate 41. The left front cross beam support plate 31 is welded and fixed to the front of the roof 11 through a left front welding edge 311 formed at its end. The left front cross beam support plate 31 is connected and fastened to the panoramic sunroof reinforcement ring 12 through three bolts. The left front cross beam support plate 31 is provided with screw holes 312 matched with the bolts. The right cross beam support plate 41 has the same structure as the left front cross beam support plate 31. The right cross beam support plate 41 is welded and fixed to the front of the roof 11 through a right front welding edge 411.

[0048] See also Fig. 9 The rear mounting crossbeam 5 includes a left side welding edge 51 and a right side welding edge 52 on both sides of the rear mounting crossbeam 5, respectively. The rear mounting crossbeam 5 is a rear mounting structure of the sunroof. A plurality of rear mounting bosses 53 are provided on the rear mounting crossbeam 5, and the rear mounting bosses 53 are rear fixing points of the panoramic sunroof. Four are taken as an example in this embodiment. Due to the difference in the positions of the mounting points of the panoramic sunroof, the cross-sectional width S3 is 80-130mm. The rear mounting crossbeam 5 is designed with reference to the crossbeam in general vehicle models. The left side welding edge 51 and the right side welding edge 52 are overlapped and spot-welded with the left side welding edge 33 of the side panel welding assembly and the right side welding edge 43 of the side panel welding assembly respectively. The setting of the rear mounting crossbeam 5 can save the side connection structure of the rear mounting point structure, and the force is good. The new block design of the rear mounting crossbeam 5 is conducive to reducing the load on the panoramic sunroof reinforcement ring body, and is convenient for the simplified design and material utilization of the large parts of the panoramic sunroof reinforcement ring body.

[0049] See also Fig.10 , Fig.11 The panoramic sunroof reinforcement ring is connected to the side panel welding assembly through a side connecting bracket. One end of the side connecting bracket is screwed and fixed to the panoramic sunroof reinforcement ring 12, and the other end is welded and fixed to the side panel welding assembly. The side connecting bracket only bears the force of the left and right installation points on the side, and is an important connection path for the force and bending-torsion stiffness of the panoramic sunroof reinforcement ring 12.

[0050] See also Fig.11The side panel welding assembly includes a left side panel welding assembly 3 and a right side panel welding assembly 4 of the same structure. The left side panel welding assembly 3 and the right side panel welding assembly 4 are respectively located on both sides of the panoramic sunroof reinforcement ring 12. The side connecting bracket includes a left side connecting bracket 32 ​​and a right side connecting bracket 42 that are symmetrical on both sides. The left side connecting bracket 32 ​​is provided with a left screw connection structure 322. The right side connecting bracket 42 has the same structure as the left side connecting bracket 32. The left side connecting bracket 32 ​​is provided with a left screw connection structure 32 .... The left side connecting bracket 32 ​​is provided with a left screw connection structure 322. The left side connecting bracket 32 ​​is provided with a left screw connection structure 32. The left side connecting bracket 32 ​​is provided with a left screw connection structure 32. The left side connecting bracket 32 ​​is provided with a left screw connection structure 32. The left side connecting bracket 32 ​​is provided with a left screw connection structure 32. The left side connecting bracket The bracket 32 ​​is welded and fixed to the left side welding edge 33 of the side panel welding assembly of the left side panel welding assembly 3 through the left side welding edge 321. The right side connecting bracket 42 has the same structure as the left side connecting bracket 32, and its length covers the mounting point of the side supporting the side of the panoramic sunroof. The left side connecting bracket 32 ​​is provided with a left screw connection structure 322, and the left screw connection structure 322 is fastened to the panoramic sunroof reinforcement ring 12 by bolts. The panoramic sunroof reinforcement ring 12 is provided with a side mounting point structure (not shown) that is compatible with the side connecting bracket.

[0051] Working principle: The panoramic sunroof reinforcement ring 12 extending to the side panel welding assembly on the left side 121 and the panoramic sunroof reinforcement ring on the right side 122 are cancelled. The connection strength of the panoramic sunroof reinforcement ring 12 is increased by integrating the panoramic sunroof reinforcement ring body with the front cross beam 2, welding the top cover 11 and the top cover front cross beam support plate at the front, and screwing the internal overlap structure of the panoramic sunroof reinforcement ring 12 with the top cover front cross beam support plate. Compared with the technical solution in the background technology, the dedicated front side connection structure is reduced, the bonding structure is cancelled, and the problem of abnormal noise caused by bonding is avoided; the problem of the panoramic sunroof reinforcement ring on the left side 121 and the panoramic sunroof reinforcement ring on the right side 122 and the side panel welding assembly on the left side welding edge 33 and the side panel under the background technology is overcome. The welding edge 43 on the right side of the welding assembly can only be bonded with structural adhesive 7 after overlapping due to the limited welding channel, which is prone to produce technical problems of abnormal noise; the front of the panoramic sunroof reinforcement ring 12 is extended forward and welded to the top cover 11, and is connected and fastened to the side panel welding assembly through the front crossbeam support plate of the top cover, which is conducive to bearing the force of the front installation point. The addition of an independent rear installation crossbeam 5 can save the side connection structure of the rear installation structure, which is conducive to bearing the force of the rear installation point of the panoramic sunroof, reducing the load-bearing force of the main parts of the panoramic sunroof reinforcement ring 12, and saving the side connection structure of the rear installation structure; the added side connection bracket only bears the force of the left and right installation points on the side, which improves the connection effect between the side panel welding assembly and the panoramic sunroof reinforcement ring 12. At the same time, the length direction dimension of the panoramic sunroof reinforcement ring 12 is optimized;

[0052] The panoramic sunroof reinforcement ring 12 cancels the original bonding structure, and the widths on both sides of the panoramic sunroof reinforcement ring 12 can be set to be equal, with a cross-sectional width of 55-75mm, less waste, and improved waste utilization; based on the panoramic sunroof reinforcement ring 12 with a cross-sectional width of 65mm on the side of the sunroof opening and an opening of 1370x870, the consumables can be reduced by 3-5KG.

[0053] The above-mentioned method focuses on improving the side bonding of the panoramic sunroof reinforcement ring for the car body with laser welding of the roof cover and the side panel, and improves and optimizes the front and rear blocks of the panoramic sunroof reinforcement ring 12. It fully utilizes the support of the front crossbeam support plate of the roof cover and the independent welding of the rear mounting crossbeam 5 of the sunroof reinforcement ring to optimize the load-bearing of each installation point of the panoramic sunroof. It is also applicable to the car body with spot welding of the roof cover and the side panel.

[0054] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A panoramic sunroof reinforcement ring and its connection structure, characterized in that: The invention comprises a panoramic sunroof reinforcement ring (12) and a connection structure for connecting the panoramic sunroof reinforcement ring (12) with a top cover (11) and a side panel welding assembly, so as to realize installation and fixation of the panoramic sunroof; the panoramic sunroof reinforcement ring (12) is provided with a front fixing structure and a side fixing structure of the panoramic sunroof; the connection structure comprises a side connection bracket, and the panoramic sunroof reinforcement ring (12) is connected to the side panel welding assembly via the side connection bracket; an inner flange (127) is provided on the inner side of the opening of the panoramic sunroof reinforcement ring, and the inner ring surface of the panoramic sunroof reinforcement ring (12) is fixed to the large surface of the top cover (11) by bonding; the panoramic sunroof reinforcement ring and the front crossbeam are of an integrated design, and the panoramic sunroof reinforcement ring (12) is provided with an inner flange (127) on the inner side of the opening of the panoramic sunroof reinforcement ring, and the inner ring surface of the panoramic sunroof reinforcement ring (12) is fixed to the large surface of the top cover (11) by bonding; the panoramic sunroof reinforcement ring and the front crossbeam are of an integrated design, and the panoramic sunroof reinforcement ring (12) is provided with an inner flange (127) on the inner side of the opening of the panoramic sunroof reinforcement ring The two sides of the reinforcement ring (12) have the same width. Both sides of the panoramic sunroof reinforcement ring (12) are connected to the side panel welding assembly via side connection brackets. One end of the side connection bracket is screwed and fixed to the panoramic sunroof reinforcement ring (12), and the other end is welded and fixed to the side panel welding assembly. The front part of the panoramic sunroof reinforcement ring (12) extends forward and is welded and fixed to the top cover (11), and is connected and fastened to the top cover front crossbeam support plate fixed to the side panel welding assembly. The panoramic sunroof reinforcement ring (12) is provided with a reinforcement ring inner ring surface (128) at the sunroof opening. The reinforcement ring inner ring surface (128) is in contact with the inner wall of the top cover (11) and is fixed by structural adhesive. The inner flange (127) is fixed to the opening flange of the top cover (11) by laser welding.

2. A panoramic sunroof reinforcement ring and its connection structure according to claim 1, characterized in that: A panoramic sunroof reinforcement ring front welding edge (123) is formed at the front of the panoramic sunroof reinforcement ring (12), and the panoramic sunroof reinforcement ring front welding edge (123) is welded and fixed to the top cover (11) and the top cover front crossbeam support plate.

3. The panoramic sunroof reinforcement ring and its connection structure according to claim 1, characterized in that: The connection structure further comprises a rear mounting crossbeam (5), on which a rear fixing point of the panoramic sunroof is arranged, and on both sides of the rear mounting crossbeam (5) are respectively provided a left side welding edge (51) and a right side welding edge (52), and are respectively welded and fixed to the side enclosure welding assembly via the left side welding edge (51) and the right side welding edge (52).

4. The panoramic sunroof reinforcement ring and its connection structure according to claim 3, characterized in that: The rear mounting crossbeam (5) is provided with a plurality of rear mounting bosses (53) connected to the panoramic sunroof, and the cross-sectional width of the rear mounting crossbeam (5) is 80-130 mm.

5. The panoramic sunroof reinforcement ring and its connection structure according to claim 2, characterized in that: The top cover front cross beam support plate comprises a top cover front cross beam left support plate (31) and a top cover right cross beam support plate (41); the top cover front cross beam left support plate (31) is welded and fixedly connected to the front of the top cover (11) via a left front welding edge (311) formed at its end; the top cover front cross beam left support plate (31) is fastened to the panoramic sunroof reinforcement ring (12) via bolts; the top cover front cross beam left support plate (31) is provided with a screw hole (312) adapted to the bolt; the top cover right cross beam support plate (41) has the same structure as the top cover front cross beam left support plate (31).

6. The panoramic sunroof reinforcement ring and the connection structure thereof according to claim 1, characterized in that: The side width of the panoramic sunroof reinforcement ring (12) is 55-75 mm, and the side of the panoramic sunroof reinforcement ring (12) is provided with a positioning hole (124) and a side mounting boss (126) located on the side; the panoramic sunroof reinforcement ring (12) includes a panoramic sunroof reinforcement ring rear portion (129) and is provided with a positioning hole (124), the cross-sectional width of the panoramic sunroof reinforcement ring rear portion (129) is 55-75 mm, the front fixing structure includes a positioning hole (124) and a front mounting boss (125), and the side fixing structure includes a positioning hole (124) and a side mounting boss (126).

7. The panoramic sunroof reinforcement ring and the connection structure thereof according to claim 1, characterized in that: The side panel welding assembly comprises a left side panel welding assembly (3) and a right side panel welding assembly (4) having the same structure; the left side panel welding assembly (3) and the right side panel welding assembly (4) are respectively located on both sides of the panoramic sunroof reinforcement ring (12); and the side connecting bracket comprises a left side surface connecting bracket (32) and a right side surface connecting bracket (42).

8. The panoramic sunroof reinforcement ring and the connection structure thereof according to claim 7, characterized in that: The left side connecting bracket (32) is welded and fixed to the left side enclosure welding assembly (3) via the left side welding edge (321), and the left side connecting bracket (32) is connected and fastened to the panoramic sunroof reinforcement ring (12) via the left screw connection structure (322).

9. The panoramic sunroof reinforcement ring and the connection structure thereof according to claim 7, characterized in that: The panoramic sunroof reinforcement ring (12) is provided with a side mounting point structure adapted to the side connecting bracket.

10. The panoramic sunroof reinforcement ring and the connection structure thereof according to claim 2, characterized in that: The top cover (11) is provided with a top cover front welding edge (113) and a top cover left side welding edge (111) and a top cover right side welding edge (112) respectively formed on both sides of the top cover (11), and the top cover front welding edge (113) is welded and fixed to the left front welding edge (311) and the panoramic sunroof reinforcement ring front welding edge (123).

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