Beam structure in automobile skylight frame
By adding ribs to reinforce the stress concentration openings of the beams and installing flexible pads, the problems of beam tearing and sunshade wear were solved, improving the strength of the skylight frame and the service life of the sunshade.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG ZEDI AUTO PARTS CO LTD
- Filing Date
- 2025-07-01
- Publication Date
- 2026-05-19
AI Technical Summary
The existing car sunroof frame crossbeams are prone to tearing at stress concentration points, and the sunshade wears severely when in contact with the crossbeams, affecting the strength of the sunroof frame and the service life of the sunshade.
Ribs are added to reinforce the stress concentration openings of the crossbeam, and flexible pads are installed on the crossbeam to reduce wear. The ribs increase strength, and the flexible pads reduce friction between the roller blind and the crossbeam.
The increased strength of the sunroof frame prevents tearing at the opening, while also reducing wear and tear on the sunshade and beam, extending the lifespan of the sunshade.
Smart Images

Figure CN224256424U_ABST
Abstract
Description
Technical fields:
[0001] This utility model relates to the technical field of automotive sunroof frames, and more specifically to a crossbeam structure within an automotive sunroof frame. Background technology:
[0002] The sunroof frame is a crucial component of a car sunroof, primarily used to support the sunroof glass and ensure its sealing and strength. Currently, some car models have an internal crossbeam installed within the sunroof frame to reinforce its strength. Existing crossbeams are generally formed by sheet metal stamping, with the main body being an arc-shaped beam plate. To improve the beam plate's resistance to bending deformation, folded plates are made on both sides of the beam plate, and a rib groove is added in the middle. The two ends of the beam plate are bolted to the sunroof frame. The two ends of the beam plate are flat mounting plates. During the stamping process, interference can occur between the folded plates on both sides of the beam plate and the mounting plates at both ends. Therefore, U-shaped or V-shaped slots are cut between the folded plates and the mounting plates at both ends of the beam plate. However, after the crossbeam is installed inside the sunroof frame, its stress concentrates within the U-shaped or V-shaped slots, making these slots prone to tearing and thus compromising the strength of the sunroof frame.
[0003] Meanwhile, the lower surface of the existing beam is generally in contact with the sunshade inside the skylight. When the sunshade moves, it will come into contact with the beam. If the sunshade moves frequently, it is easy to wear and damage. Therefore, in order to address the above two issues, the beam needs to be optimized and improved. Utility Model Content:
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by providing a crossbeam structure within an automotive sunroof frame. The crossbeam is reinforced with ribs at the stress concentration openings at both ends to prevent tearing and improve the strength of the sunroof frame. Simultaneously, a boss is added to the crossbeam to install flexible pads, reducing wear between the sunroof blind and the crossbeam and extending the service life of the sunroof blind.
[0005] A crossbeam structure within a car sunroof frame includes an arc-shaped main beam plate. Upwardly inclined side plates are formed on both sides of the main beam plate, with rolled edges formed on the side of the side plates facing away from the main beam plate. Connecting support plates are formed at the middle of both ends of the main beam plate. Inclined transition plates are formed on both sides of the connecting support plates. Horizontal ear plates are formed on the sides of the transition plates. An "R"-shaped opening is formed between the ends of the ear plates and the side plates. Mounting edge plates are stamped on the side of the ear plates, transition plates, and connecting support plates away from the main beam plate, and several mounting edge plates are formed on the mounting edge plates. The side plate has two inclined plane connecting platforms formed at both ends. Ribs are welded and fixed to the connecting support plates at both ends of the main beam plate. One end of each side of the rib is stamped with an inner support ear, which abuts against the lower surface of the connecting platform and is fixedly connected to the connecting platform by welding. The other end of each side of the rib is stamped with an outer support ear, which abuts against the ear plate and is fixedly connected to the ear plate by welding. A rounded corner is formed between the outer support ear and the inner support ear, and the rounded corner is located in the opening between the ear plate and the side plate.
[0006] Several downward-protruding support platforms are formed on the side plates on both sides of the main beam plate. The lower surface of the support platform is located on the lower side of the main beam plate and is formed with waist-shaped holes. Flexible support pads are inserted into the waist-shaped holes. Mushroom-shaped support heads are formed on the lower end surface of the flexible support pads and are distributed in a matrix.
[0007] Preferably, the mounting side plate includes an inclined plate connected to the ear plate, transition plate and connecting support plate. The end of the inclined plate is formed with a flat plate, and a plurality of stamped grooves are formed on the flat plate. The mounting holes are distributed on the flat plate of the mounting side plate.
[0008] Preferably, the two sides of the mounting side plate are respectively stamped with oblique reinforcing ribs, and the two ends of the reinforcing ribs are located on the ear plate and the flat plate of the mounting side plate, respectively.
[0009] Preferably, the rib plate has a rectangular reinforcing groove formed in the middle.
[0010] Preferably, the inner lug of the rib plate is formed with a connecting hole, and the lug plate is formed with a through hole that overlaps with the connecting hole.
[0011] Preferably, the upper end face of the flexible support pad abuts against the lower surface of the support platform and is formed with a plug in the shape of an isosceles trapezoid. The plug is inserted into the waist-shaped hole of the support platform. Elastic hooks are formed on both sides of the plug and abut against the upper surface of the support platform.
[0012] The beneficial effects of this utility model are as follows:
[0013] The crossbeam is reinforced with ribs at the stress concentration openings at both ends to prevent tearing at the openings and improve the strength of the skylight frame. At the same time, a boss is added to the crossbeam to install flexible pads, reducing wear between the sunshade and the crossbeam and improving the service life of the sunshade. Attached image description:
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0015] Figure 2 This is a three-dimensional structural diagram of the present invention from another angle;
[0016] Figure 3 for Figure 2 A magnified schematic diagram of the local structure at point A;
[0017] Figure 4 This is a front view structural diagram of the present invention;
[0018] Figure 5 This is a side view of the structure of this utility model.
[0019] In the diagram: 1. Main beam plate; 11. Connecting support plate; 12. Transition plate; 13. Ear plate; 14. Mounting side plate; 15. Mounting hole; 16. Side plate; 17. Rolled edge; 18. Support platform; 19. Waist-shaped hole; 110. Connecting platform; 111. Cable groove; 112. Through hole; 113. Reinforcing rib; 114. Stamped groove; 2. Rib plate; 21. Inner support ear; 22. Outer support ear; 23. Rounded corner; 24. Connecting hole; 25. Reinforcing rib groove; 3. Flexible support pad; 31. Support head; 32. Plug; 33. Elastic hook. Detailed implementation method:
[0020] Example: See Figures 1 to 5As shown, a crossbeam structure within a car sunroof frame includes an arc-shaped main beam plate 1. Upwardly inclined side plates 16 are formed on both sides of the main beam plate 1. A rolled edge 17 is formed on the side of the side plate 16 facing away from the main beam plate 1. Connecting support plates 11 are formed at the middle of both ends of the main beam plate 1. Inclined transition plates 12 are formed on both sides of the connecting support plates 11. Horizontal ear plates 13 are formed on the sides of the transition plates 12. An "R"-shaped opening a is formed between the ends of the ear plates 13 and the side plates 16. A mounting edge plate 14 is stamped on the side of the ear plates 13, transition plates 12, and connecting support plates 11 away from the main beam plate 1. Several mounting holes 15 are formed on the mounting edge plate 14. The two ends of the side plates 16... The main beam plate 1 has a connecting platform 110 with an inclined plane. Ribs 2 are welded and fixed to the connecting support plates 11 at both ends of the main beam plate 1. The ribs 2 are in contact with the connecting support plates 11 and the transition plate 12. One end of the two sides of the ribs 2 is stamped with an inner support ear 21. The inner support ear 21 abuts against the lower surface of the connecting platform 110 and is fixedly connected to the connecting platform 110 by welding. The other end of the two sides of the ribs 2 is stamped with an outer support ear 22. The outer support ear 22 abuts against the ear plate 13 and is fixedly connected to the ear plate 13 by welding. A rounded corner 23 is formed between the outer support ear 22 and the inner support ear 21. The rounded corner 23 is located in the opening a between the ear plate 13 and the side plate 16.
[0021] Several downwardly protruding support platforms 18 are formed on the side plates 16 on both sides of the main beam plate 1. The lower surface of the support platform 18 has a high degree of smoothness. The lower surface of the support platform 18 is located on the lower side of the main beam plate 1 and has a waist-shaped hole 19. A flexible support pad 3 is inserted into the waist-shaped hole 19 and connected. Mushroom-shaped and matrix-distributed support heads 31 are formed on the lower end surface of the flexible support pad 3.
[0022] The mounting side plate 14 includes an inclined plate connected to the ear plate 13, the transition plate 12 and the connecting support plate 11. The end of the inclined plate is formed with a flat plate, and a plurality of stamped grooves 114 are formed on the flat plate. The mounting holes 15 are distributed on the flat plate of the mounting side plate 14. The stamped grooves 114 can improve the strength of the mounting side plate 14, thereby improving the strength of the crossbeam.
[0023] The mounting side plate 14 has obliquely placed reinforcing ribs 113 stamped on both sides. The two ends of the reinforcing ribs 113 are located on the ear plate 13 and the flat plate of the mounting side plate 14, respectively. The main body of the reinforcing ribs 113 is located on the oblique plate of the reinforcing ribs 113. The reinforcing ribs 113 can improve the deformation resistance of the mounting side plate 14.
[0024] The rib plate 2 has a rectangular reinforcing groove 25 formed in the middle to improve the strength of the rib plate 2.
[0025] The inner support lug 21 of the rib plate 2 is formed with a connecting hole 24, and the lug plate 13 is formed with a through hole 112 that overlaps with the connecting hole 24. The through hole 112 and the connecting hole 24 are fitted with bolts and are connected to the outer frame of the sunroof by bolts.
[0026] The upper end face of the flexible support pad 3 abuts against the lower surface of the support platform 18 and is formed with a plug 32 in the shape of an isosceles trapezoid. The plug 32 is inserted into the waist-shaped hole 19 of the support platform 18. The plug 32 is a hollow structure. Elastic hooks 33 are formed on both sides of the plug 32. The two sides of the plug 32 are provided with slots opposite to the elastic hooks 33. The elastic hooks 33 abut against the upper surface of the support platform 18. By pressing the elastic hooks 33, the elastic hooks 33 can be retracted into the slots on both sides of the plug 32, thereby allowing the flexible support pad 3 to detach from the main beam plate.
[0027] The main beam plate 1 has an upwardly recessed groove 111 formed in the middle, which is equivalent to a rib groove to improve the strength of the main beam plate 1.
[0028] Working principle: This structure is a crossbeam structure within the car sunroof frame, and its crossbeam structure is as follows: Figure 1 , 2 As shown, the main process involves stamping to create profiles or grooves to process the mounting and connecting surfaces on the crossbeam and to improve the strength of the crossbeam.
[0029] The technical features of its crossbeam are mainly reflected in two aspects. One is that rib plates 2 are installed at both ends of the main beam plate 1. The rib plates 2 can increase the thickness at both ends of the main beam plate 1. The other is that they connect the side plates 16 on both sides of the main beam plate 1 and the mounting edge plates 14 at both ends through the inner support ears 21 and the outer support ears 22. Furthermore, the inner support ears 21 and the outer support ears 22 have a rounded corner structure, so the tearing problem at the opening a can be avoided.
[0030] Another point is to add a support platform 18 to the main beam plate 1. A flexible support pad 3 can be installed inside the support platform 18. The support head 31 on the flexible support pad 3 abuts against the roller blind. The friction between the support head 31 and the roller blind is small, and the wear is also small. In the figure, only part of the flexible support pad 3 is installed on the support platform 18, but the smoothness of the lower surface of the support platform 18 is improved, and the friction between the roller blind and the support platform 18 is also small.
[0031] The embodiments described above are illustrative of the present invention and are not intended to limit the present invention. Any person skilled in the art can modify the embodiments without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be as set forth in the claims.
Claims
1. A crossbeam structure within a car sunroof frame, comprising an arc-shaped main beam plate (1), with upwardly inclined side plates (16) formed on both sides of the main beam plate (1), a rolled edge (17) formed on the side of the side plate (16) away from the main beam plate (1), connecting support plates (11) formed at the middle of both ends of the main beam plate (1), oblique transition plates (12) formed on both sides of the connecting support plates (11), a horizontal ear plate (13) formed on the side of the transition plate (12), an "R"-shaped opening (a) formed between the ends of the ear plate (13) and the side plate (16), and a mounting side plate (14) stamped on the side of the ear plate (13), the transition plate (12), and the connecting support plate (11) away from the main beam plate (1), with a plurality of mounting holes (15) formed on the mounting side plate (14); characterized in that: The two ends of the side plate (16) are respectively formed with inclined plane connecting platforms (110). The connecting support plates (11) at both ends of the main beam plate (1) are respectively welded and fixed with ribs (2). One end of the two sides of the rib (2) is stamped with an inner support ear (21). The inner support ear (21) abuts against the lower surface of the connecting platform (110) and is fixedly connected to the connecting platform (110) by welding. The other end of the two sides of the rib (2) is stamped with an outer support ear (22). The outer support ear (22) abuts against the ear plate (13) and is fixedly connected to the ear plate (13) by welding. The outer support ear (22) and the inner support ear (21) are formed with a rounded corner (23). The rounded corner (23) is located in the opening (a) between the ear plate (13) and the side plate (16). On the side plates (16) on both sides of the main beam plate (1), a number of downwardly protruding support platforms (18) are formed respectively. The lower surface of the support platform (18) is located on the lower side of the main beam plate (1) and has a waist-shaped hole (19). A flexible support pad (3) is inserted into the waist-shaped hole (19). Mushroom-shaped and matrix-distributed support heads (31) are formed on the lower end surface of the flexible support pad (3).
2. The crossbeam structure within a car sunroof frame according to claim 1, characterized in that: The mounting side plate (14) includes an inclined plate connected to the ear plate (13), the transition plate (12) and the connecting support plate (11). The end of the inclined plate is formed with a flat plate, and a plurality of stamped grooves (114) are formed on the flat plate. The mounting holes (15) are distributed on the flat plate of the mounting side plate (14).
3. The crossbeam structure within a car sunroof frame according to claim 2, characterized in that: The mounting side plate (14) has oblique reinforcing ribs (113) stamped on both sides respectively, and the two ends of the reinforcing ribs (113) are located on the ear plate (13) and the flat plate of the mounting side plate (14) respectively.
4. The crossbeam structure within a car sunroof frame according to claim 1, characterized in that: The rib (2) has a rectangular reinforcing groove (25) formed in the middle.
5. The crossbeam structure within a car sunroof frame according to claim 1, characterized in that: The inner support lug (21) of the rib plate (2) is formed with a connecting hole (24), and the lug plate (13) is formed with a through hole (112) that overlaps with the connecting hole (24).
6. The crossbeam structure within a car sunroof frame according to claim 1, characterized in that: The upper end of the flexible support pad (3) abuts against the lower surface of the support platform (18) and is formed with a plug (32) in the shape of an isosceles trapezoid. The plug (32) is inserted into the waist-shaped hole (19) of the support platform (18). Elastic hooks (33) are formed on both sides of the plug (32) and abut against the upper surface of the support platform (18).