Automobile panoramic sunroof roof
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG HUIKAI MOLDING TECH CO LTD
- Filing Date
- 2025-08-19
- Publication Date
- 2026-06-12
AI Technical Summary
The existing car panoramic sunroofs rely on the elastic deformation of the material to hold them in place. Repeated insertion and removal can lead to wear, fatigue, and deformation, resulting in a decrease in locking force, loosening, abnormal noise, or even detachment.
The design employs a combination of support blocks, hand-tightened bolts, limit blocks, limit posts, and tension springs. Combined with the magnetic attraction between neodymium iron boron magnets and the roof, it enables convenient assembly and disassembly of the roof body and ensures structural stability. The precise coordination of threaded transmission and elastic reset enhances pull-out resistance and shear resistance. Sealing rings and sound insulation pads are used to improve sealing and sound insulation.
It ensures the structural integrity and functional reliability of the canopy body during multiple assembly and disassembly processes, prevents fatigue damage to connectors, reduces noise, lowers maintenance costs, and ensures stability and sealing during long-term use.
Smart Images

Figure CN224348864U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of automotive parts, specifically to a panoramic sunroof roof for automobiles. Background Technology
[0002] A car headliner is an interior trim piece installed on the inside of the car's roof sheet metal. It's an important component of the overall car interior, primarily enhancing the interior's aesthetics while also improving sound and heat insulation, thus increasing passenger comfort and safety. However, after repeated disassembly and reassembly, the headliner is prone to losing its secure fit, leading to gaps.
[0003] Chinese patent CN209666795U discloses a panoramic sunroof roof assembly for automobiles, comprising a roof body, which is a shell structure. The outer surface of the roof body is covered with a fabric layer. Two D-pillar foam mounting assemblies are respectively installed at the rear ends of the roof body. C-pillar foam blocks are respectively installed at the upper ends of the brackets. A C-pillar clearance notch is provided on the shell structure in front of the brackets. A B-pillar clearance notch is provided in the middle section of the side edge of the roof body. B-pillar foam mounting assemblies are installed at both ends of the B-pillar clearance notch. The B-pillar foam mounting assemblies include a pair of inclined B-pillar foam blocks, with clearance space between the two B-pillar foam blocks. A-pillar foam blocks are respectively installed at the front ends of the two side edges of the roof body. A-pillar clearance notch is provided on the shell structure in front of the A-pillar foam blocks. Three rectangular roof sound-absorbing cotton pieces, a panoramic sunroof bracket, and a roof front dome light bracket are sequentially arranged from back to front on the back of the roof body.
[0004] In the above solution, the ceiling body is fixed by a buckle, which has the following disadvantages: the buckle usually relies on the elastic deformation of the material to achieve the clamping. Repeated insertion and removal will cause plastic wear or fatigue deformation of the buckle hooks and the edges of the slots, which will increase the mating gap, reduce the locking force, and eventually cause loosening, abnormal noise, or even falling off. Utility Model Content
[0005] The purpose of this utility model is to provide a panoramic sunroof roof for automobiles, which solves the problem that the buckle usually relies on the elastic deformation of the material to achieve the locking. Repeated insertion and removal will cause plastic wear or fatigue deformation of the buckle hooks and the edges of the slots, which will increase the mating gap, reduce the locking force, and eventually lead to loosening, abnormal noise, or even falling off.
[0006] To achieve the above-mentioned utility model objectives, the present utility model adopts the following technical solution: a panoramic sunroof roof for automobiles, comprising several support blocks, all of which are fixed to the top surface of the roof body. Several positioning holes are formed on the top surface of the roof body. A receiving groove is formed on the front side of each support block, and a threaded hole is formed on the inner bottom surface of the receiving groove. The threaded hole corresponds to the positioning hole. A hand-tightening bolt is inserted into the inner wall of the positioning hole, and the hand-tightening bolt is threaded into the threaded hole. A limiting block is fixed to the end of the hand-tightening bolt, and the limiting block is rotatably disposed within the receiving groove. A limiting hole is formed on the rear side of each support block, and a limiting post is inserted into the inner wall of the limiting hole. The limiting block contacts the limiting post, and one end of the limiting post extends to the rear side of the roof body. A tension spring is wound around the outer wall of the limiting post, one end of which is connected to the inner wall of the limiting hole, and the other end of which is fixed to the outer wall of the limiting post.
[0007] Preferably, two protruding strips are fixed on both the front and rear sides of the canopy body, and several arc-shaped support plates are fixed on the top surface of the canopy body.
[0008] Preferably, several neodymium iron boron strong magnets are fixed on both the left and right sides of the canopy body, and metal patches are magnetically attracted to the neodymium iron boron strong magnets.
[0009] Preferably, the metal patch is fixed to the roof of the vehicle.
[0010] Preferably, the top surface of the canopy body has a through hole, a sealing ring is fixed on the top surface of the canopy body, the sealing ring corresponds to the through hole, and two connection holes are provided on the top surface of the canopy body.
[0011] Preferably, a sound-insulating pad is fixed to the top surface of the canopy body.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] 1. Through the synergistic action of support blocks, hand-tightening bolts, limiting blocks, limiting posts, and tension springs, the roof body can be easily assembled and disassembled. The precise coordination of threaded transmission and elastic reset ensures the roof body maintains structural integrity during repeated assembly and disassembly, avoiding damage to the roof body and roof connection points during disassembly, and effectively preventing fatigue damage to connecting parts caused by repeated stress. This significantly reduces component wear and replacement costs during maintenance, while ensuring the structural stability and functional reliability of the roof body during long-term use. The protruding strips can mate with corresponding grooves on the roof, limiting the horizontal displacement of the roof body and ensuring precise installation. This effectively improves the deformation resistance of weak points, preventing sagging edges and decreased sealing after long-term use. Furthermore, the synergistic effect of the arc-shaped support plate disperses the pressure on the roof body, preventing it from denting and deforming due to excessive stress.
[0014] Second, after repeated disassembly and reassembly of the headliner, traditional clips may experience reduced fastening strength due to wear. The magnetic attraction between the neodymium iron boron magnet and the metal roof panel provides additional longitudinal tension, preventing the headliner from loosening or making abnormal noises during vehicle vibrations, thus enhancing long-term stability. The sealing ring fills gaps, preventing external dust and particles from entering the headliner and reducing wind noise generated by air turbulence passing through the gaps, further improving sound insulation. The sound insulation pad uses porous materials (such as polyurethane foam and fiberglass wool). Its internal microporous structure can rub, reflect, and scatter incoming sound waves, converting sound energy into heat energy, effectively absorbing external wind noise, tire noise, and engine noise during vehicle operation, reducing the decibel level inside the vehicle. Attached Figure Description
[0015] Figure 1 This is a three-dimensional schematic diagram of an embodiment.
[0016] Figure 2 This is a breakdown diagram of an embodiment.
[0017] Figure 3 Examples Figure 2 Enlarged diagram of point A in the middle.
[0018] In the diagram: 1. Support block; 2. Canopy body; 3. Positioning hole; 4. Receiving groove; 5. Threaded hole; 6. Hand-tightening bolt; 7. Limiting block; 8. Limiting hole; 9. Limiting post; 10. Tension spring; 11. Raised strip; 12. Arc-shaped support plate; 13. Neodymium iron boron strong magnet; 14. Metal patch; 15. Through hole; 16. Sealing ring; 17. Connecting hole; 18. Sound insulation pad. Detailed Implementation
[0019] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0020] like Figures 1-3 As shown, a panoramic sunroof roof for automobiles includes several support blocks 1, all of which are fixed to the top surface of the roof body 2. Several positioning holes 3 are formed on the top surface of the roof body 2. A receiving groove 4 is formed on the front side of each support block 1. A threaded hole 5 is formed on the bottom surface of the receiving groove 4, corresponding to the positioning holes 3. A hand-tightening bolt 6 is inserted into the inner wall of the positioning hole 3, threadedly connected to the threaded hole 5. A limit block 7 is fixed to the end of the hand-tightening bolt 6, and the limit block 7 is rotatable. The support block 1 is placed in the receiving groove 4. A limiting hole 8 is opened on the rear side of the support block 1. A limiting post 9 is inserted into the inner wall of the limiting hole 8. The limiting block 7 is in contact with the limiting post 9. One end of the limiting post 9 extends to the rear side of the ceiling body 2. A tension spring 10 is wound around the outer wall of the limiting post 9. One end of the tension spring 10 is connected to the inner wall of the limiting hole 8. The other end of the tension spring 10 is fixed to the outer wall of the limiting post 9. Two protruding strips 11 are fixed on the front and rear sides of the ceiling body 2. Several arc-shaped support plates 12 are fixed on the top surface of the ceiling body 2.
[0021] In use, when the roof body 2 needs to be installed, it is first placed in the corresponding installation position on the roof so that the neodymium iron boron strong magnet 13 and the metal patch 14 on the roof can be accurately attracted. With the help of the magnetic attraction between the two, the roof body 2 can be provided with temporary fixing force during the installation process, so that it can maintain the initial positioning without manual support. Then, by tightening the hand-tightening bolt 6, the limiting block 7 is driven to push the limiting post 9 to move axially, so that the limiting post 9 passes through the roof body 2 and is locked into the preset slot on the roof, forming a mechanical locking structure. Compared with a single buckle or magnetic attraction fixing method, this structure can provide higher pull-out resistance and shear resistance, ensuring that the roof body 2 remains stable under complex road conditions and effectively avoiding the risk of loosening.
[0022] When it is necessary to disassemble the roof body 2, the hand-tightening bolt 6 can be loosened to remove the limit block 7 from the limit post 9. Then the tension spring 10 will drive the limit post 9 to reset, thereby causing the limit post 9 to disengage from the preset slot on the roof, thus completing the disassembly of the roof body 2.
[0023] Through the coordinated action of support block 1, hand-tightening bolt 6, limiting block 7, limiting post 9, and tension spring 10, the roof body 2 can be easily assembled and disassembled. The precise cooperation of threaded transmission and elastic reset ensures that the roof body 2 maintains structural integrity during repeated assembly and disassembly, avoiding damage to the roof body 2 and the roof connection points during disassembly, and effectively preventing fatigue damage to the connecting parts due to repeated stress. This significantly reduces component wear and replacement costs during maintenance, while ensuring the structural stability and functional reliability of the roof body 2 during long-term use. The protruding strip 11 can cooperate with the corresponding groove on the roof to limit the horizontal displacement of the roof body 2, ensuring precise installation and effectively improving the deformation resistance of weak points. This prevents sagging edges from reducing sealing performance after long-term use. Furthermore, with the synergistic effect of the arc-shaped support plate 12, the pressure on the roof body 2 can be distributed, preventing the roof body 2 from denting and deforming due to excessive force.
[0024] like Figures 1-3 As shown, several neodymium iron boron strong magnets 13 are fixed on both the left and right sides of the roof body 2. Metal patches 14 are magnetically attracted to the neodymium iron boron strong magnets 13 and fixed to the roof. A through hole 15 is opened on the top surface of the roof body 2. A sealing ring 16 is fixed on the top surface of the roof body 2 and corresponds to the through hole 15. Two connecting holes 17 are opened on the top surface of the roof body 2. A sound insulation pad 18 is fixed on the top surface of the roof body 2.
[0025] During use, after repeated disassembly and reassembly of the roof body 2, the traditional clips may experience a decrease in fastening force due to wear. The magnetic attraction between the neodymium iron boron magnet 13 and the metal roof patch 14 provides additional longitudinal tension, preventing the roof body 2 from loosening or making abnormal noises during vehicle vibrations, thus enhancing long-term stability. The sealing ring 16 fills gaps, preventing external dust and particles from entering the interior of the roof body 2, while also reducing wind noise generated when air turbulence passes through the gaps, further improving sound insulation. The sound insulation pad 18 uses porous materials (such as polyurethane foam and fiberglass cotton). Its internal microporous structure can rub, reflect, and scatter incoming sound waves, converting sound energy into heat energy, effectively absorbing external wind noise, tire noise, and engine noise during vehicle operation, reducing the decibel level of interior noise.
[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A panoramic sunroof roof for automobiles, comprising a plurality of support blocks (1), wherein the plurality of support blocks (1) are all fixed to the top surface of the roof body (2), characterized in that, The top surface of the canopy body (2) is provided with several positioning holes (3), and the front side of the support block (1) is provided with a receiving groove (4). The bottom surface of the receiving groove (4) is provided with a threaded hole (5), which corresponds to the positioning hole (3). A hand-tightening bolt (6) is inserted into the inner wall of the positioning hole (3). The hand-tightening bolt (6) is threaded into the threaded hole (5). A limit block (7) is fixed to the end of the hand-tightening bolt (6). The limit block (7) is rotatable. The support block (1) is placed in the receiving groove (4). A limiting hole (8) is opened on the rear side of the support block (1). A limiting post (9) is inserted into the inner wall of the limiting hole (8). The limiting block (7) is in contact with the limiting post (9). One end of the limiting post (9) extends to the rear side of the ceiling body (2). A tension spring (10) is wound around the outer wall of the limiting post (9). One end of the tension spring (10) is connected to the inner wall of the limiting hole (8). The other end of the tension spring (10) is fixed to the outer wall of the limiting post (9).
2. The panoramic sunroof roof for automobiles according to claim 1, characterized in that: The front and rear sides of the canopy body (2) are each fixed with two protruding strips (11), and the top surface of the canopy body (2) is fixed with several arc-shaped support plates (12).
3. The panoramic sunroof roof for automobiles according to claim 2, characterized in that: Several neodymium iron boron strong magnets (13) are fixed on both the left and right sides of the canopy body (2), and metal patches (14) are magnetically attracted on the neodymium iron boron strong magnets (13).
4. The panoramic sunroof roof for automobiles according to claim 3, characterized in that: The metal patch (14) is fixed to the roof.
5. A panoramic sunroof roof for automobiles according to claim 3, characterized in that: The top surface of the canopy body (2) has a through hole (15), and a sealing ring (16) is fixed on the top surface of the canopy body (2). The sealing ring (16) corresponds to the through hole (15), and the top surface of the canopy body (2) has two connecting holes (17).
6. The panoramic sunroof roof for automobiles according to claim 5, characterized in that: The top surface of the canopy body (2) is fixed with a sound insulation pad (18).