Split type multifunctional top cover structure of automobile

Abstract

The invention relates to the technical field of automobile top covers, and discloses an automobile split type multifunctional top cover structure which comprises a front top cover outer plate, a rear top cover outer plate, a skylight connecting plate and cross beams, the front top cover outer plate is divided into a top cover outer plate with laser radar and a top cover outer plate without laser radar, and the cross beams comprise the front top cross beam, the middle top cross beam and the rear top cross beam. Grooves are formed in the top cover outer plate and the cross beam, the cross beam is fixed to the lower end of the top cover outer plate, so that a cavity is formed by the grooves, and a vibration energy recovery module is arranged in the cavity. The laser radar, the double sunshade curtains, the double panoramic skyscreens, the luggage rack, the entertainment display screen and the like are all installed on the top cover, the vibration energy recovery module can convert bumping vibration energy in the automobile running process into electric energy to be recycled, multi-functionalization of the top cover is achieved, single-piece stamping is achieved through the split type top cover, and the cost is reduced. Top cover integration is achieved through single-piece welding, top cover feeding is facilitated, and process simplification, material utilization maximization and operation convenience are achieved.

Description

Technical Field

[0001] The present application belongs to the technical field of automobile roof covers, and in particular relates to a split-type multifunctional automobile roof cover structure. Background Art

[0002] The roof of a car plays a crucial role in its design and functionality. First, as part of the vehicle's body structure, it directly impacts the vehicle's overall rigidity and aerodynamic performance. Second, its design also prioritizes practical space and passenger comfort. For vehicles like SUVs and MPVs, the roofline not only provides ample headroom but also ensures ample light and natural ventilation inside the vehicle, creating a more comfortable and enjoyable riding environment. Furthermore, the design of the roof also needs to consider safety and durability. As a key component of the vehicle's body structure, the roof must withstand various impacts and protect passengers from injury. Finally, the design of the roof is constantly innovating and evolving. For example, panoramic sunroofs enhance interior light and visibility, enhancing the driver and passengers' interaction with the natural environment. Solar charging panels utilize solar energy to provide auxiliary power for the vehicle, in line with the concept of green travel. Smart sensor-activated opening and closing, along with variable transparency, add intelligence and individuality to the roof.

[0003] In the prior art, Chinese patent CN215435951U discloses a roof structure and a vehicle for a skylight roof, and Chinese patent CN114802473B discloses a roof assembly and a car. Both are traditional integral skylight structures, suitable for integrated roof covers and small panoramic glass. However, the design of this skylight roof cover corresponds to overly long panoramic glass, which has high requirements for glass curvature and difficulty in glass molding. In addition, the large roof cover has extremely high process requirements, high material and labor costs, and also poses challenges in terms of safety and top pressure. In addition, the integrated roof cover can no longer meet customers' multi-functional needs, such as dual panoramic sunroofs, dual electric sunshades, and entertainment display screens. Especially in the field of intelligent driving, due to the integration of the roof cover, the vehicle body is often equipped with laser radar and non-laser radar, which often requires two new sets of roof covers, increasing costs.

[0004] Therefore, the present application proposes a split-type multifunctional roof structure for an automobile. The multifunctional roof can not only meet the needs of various configurations, but also have advantages in materials, cost and performance. Summary of the Invention

[0005] The design of the large top cover corresponds to the overly long panoramic glass, which has high requirements for glass curvature and is difficult to form. The large top cover also has extremely high process requirements, high material and labor costs, and also poses challenging technical problems in terms of safety and top pressure. This application provides a split-type multifunctional top cover structure for automobiles, which will effectively improve the above problems.

[0006] To achieve the above objectives, the present invention provides the following technical solutions: a split-type multifunctional roof structure for an automobile, comprising a roof outer panel, a sunroof connecting plate and a crossbeam, wherein the roof outer panel and the sunroof connecting plate form a roof assembly, and the crossbeam is fixedly mounted at the lower end of the roof assembly; The top cover outer panel includes a front top cover outer panel and a rear top cover outer panel, and the front top cover outer panel is divided into a top cover outer panel with a laser radar and a top cover outer panel without a laser radar; The cross beams include a front top cross beam, a middle top cross beam and a rear top cross beam, which are connected to the side panels in sequence; The front roof outer panel and the middle roof cross beam are both integrally formed, and are both formed with a U-shaped groove at the upper end and a W-shaped groove at the lower end. The front roof cross beam and the middle roof cross beam are fixedly mounted on the lower end of the front roof outer panel, and the rear roof cross beam is fixedly mounted on the lower end of the rear roof outer panel, so that the U-shaped groove and the W-shaped groove form a double-hole cavity, and the drive motor and the vibration energy recovery module are disposed in the cavity; The vibration energy recovery module includes a piezoelectric ceramic array, a neodymium magnet coil array, a collection unit and a management unit. The piezoelectric ceramic array generates alternating current through high-frequency vibration, and the neodymium magnet coil array generates alternating current through low-frequency vibration. The collection unit converts the alternating current into direct current through a rectifier circuit and a converter and outputs and stores it. The management unit controls and allocates electrical energy to the drive motor for use.

[0007] Preferably, a radar installation area is provided on the outer panel of the roof with laser radar, a decorative cover installation area is provided on the outer panel of the roof without laser radar, an entertainment display is connected to the lower end of the middle roof beam, a front sunshade is provided between the front roof beam and the middle roof beam, a rear sunshade is provided between the middle roof beam and the rear roof beam, and the drive motor drives the sunshade to operate; The front top cover outer panel is also provided with a front reinforcing rib, a front sunshade installation groove, a luggage rack installation area and a middle reinforcing rib. The front sunshade installation groove is set to a U shape for installing the front sunshade. The front end of the front sunshade is connected to the front top crossbeam, and the two sides of the front sunshade are connected to the front top cover outer panel.

[0008] Preferably, three glue coating areas are provided on the front top cover outer panel, wherein the front skylight glass glue coating area A is between the front sunshade mounting groove and the luggage rack mounting area, the front skylight glass glue coating area B is at the rear end of the front top cover outer panel, and the glue coating area C is between the radar mounting area or the decorative cover mounting area and the front reinforcement rib.

[0009] Preferably, a digital installation area, a rear reinforcing rib 1 and a rear reinforcing rib 2 are provided on the outer panel of the rear top cover, and the digital installation area provides installation space for GNSS and TBOX.

[0010] Preferably, two glue coating areas are provided on the outer panel of the rear top cover, wherein the front end of the rear reinforcing rib 1 is the rear skylight glass glue coating area A, and the area between the rear reinforcing rib 1 and the rear reinforcing rib 2 is the rear skylight glass glue coating area B.

[0011] Preferably, luggage rack mounting holes and top trim strip mounting holes are distributed on the luggage rack mounting area. The luggage rack mounting holes are evenly distributed at both ends of the luggage rack mounting area, and the top trim strip mounting holes are arranged at the front and rear ends of the luggage rack mounting holes.

[0012] Preferably, the luggage rack is installed in the luggage rack installation area in an internal manner, and the size and number of the luggage rack mounting holes and the top trim strip mounting holes are set according to requirements.

[0013] Preferably, the sunroof connecting plate includes a left sunroof connecting plate and a right sunroof connecting plate, and the left sunroof connecting plate and the right sunroof connecting plate are both provided with a rear sunshade installation groove, a boss, a flange area and a luggage rack installation area.

[0014] Preferably, the flange area is located on the inner side of the sunroof connecting plate, and the bosses are distributed at the front and rear ends of the rear sunshade installation groove. The rear sunshade installation groove is set to be U-shaped for installing the rear sunshade, and the front end of the rear sunshade is connected to the middle top crossbeam.

[0015] Preferably, the roof outer panel and the skylight connecting plate are stamped as a single piece and then installed by welding. Mounting nuts are provided on the roof outer panel, the skylight connecting plate and the crossbeam as needed.

[0016] Compared with the prior art, the present invention has the following advantages: 1. The laser radar, double sunshades, double panoramic skylights, luggage racks, entertainment display screens, etc. of this application are all installed on the top cover. The structure of the top cover is fully utilized to realize the multifunctionality of the top cover. The split top cover is used to realize single-piece stamping, and the top cover is integrated through single-piece welding to facilitate the installation of the top cover, thereby realizing the simplification of the process, maximization of material utilization and convenience of operation.

[0017] 2. The front and middle ends of the top cover of this application are made of a combination of U-shaped grooves and W-shaped grooves, so that the front, middle and rear ends of the top cover and the beam below are welded together to form a double-hole cavity, thereby enhancing the overall strength of the entire top cover.

[0018] 3. A vibration energy recovery module is provided on the top cover of the present application through a cavity. While effectively utilizing the space of the top cover, a piezoelectric ceramic array is used to receive a vibration frequency of 50-200Hz, and alternating current is generated through high-frequency vibration. A neodymium magnet coil array is used to receive a vibration frequency of 5-50Hz, and alternating current is generated through low-frequency vibration. The alternating current is then converted into direct current for output storage through a rectifier circuit in a collection unit. Finally, the electric energy is distributed to the drive motor through the priority power supply logic of the management unit to drive the sunshade. In this way, the bumpy vibration energy generated during the driving of the car can be converted into electric energy for recovery, thereby increasing the functionality of the top cover.

[0019] 4. The top cover outer panel of the present application has two structures, one is a top cover outer panel with a laser radar, and the other is a top cover outer panel without a laser radar. The two top covers are differentiated and integrated to allow for switching between experimental radar and non-radar. Compared with traditional integrated top covers, they can meet the market demand for intelligence and non-intelligence, are more flexible, and have lower costs.

[0020] 5. The present application sets multiple skylight glass glue-coated areas in the front, middle and rear of the roof, which on the one hand play a sealing role to prevent water leakage, and on the other hand the skylight glass glue-coating is conducive to the enhancement of the stiffness and modality of the entire roof.

[0021] 6. Generally, there is no luggage rack on the skylight glass. The luggage rack and top trim of this application can not only be switched with each other, but also coexist with the skylight glass. The luggage rack and top trim can be selected according to customer needs. The luggage rack is made more load-bearing through internal decoration, which greatly improves the competitiveness of the product.

[0022] Other features and advantages of the present application will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present application. The purpose and other advantages of the present application can be realized and obtained by the structures indicated in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0024] Figure 1 This is a schematic diagram of the structure of the split multifunctional top cover structure provided by the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the split multifunctional top cover structure provided by the present invention. Figure 2 ; Figure 3 This is a top view of the structure of the split multifunctional top cover structure provided by the present invention; Figure 4 This invention Figure 3 AA section view in; Figure 5 This is an exploded view of the top cover structure provided by the present invention; Figure 6 This is a structural diagram of the outer panel with a lidar provided by the present invention; Figure 7 This is a structural diagram of the outer panel without the lidar cover provided by the present invention; Figure 8 This is a structural diagram of the skylight connecting plate provided by the present invention; Figure 9 This invention Figure 8 BB cross-section in; Figure 10 This is a schematic diagram of the sunshade installation structure provided by the present invention; Figure 11 This invention Figure 10 CC cross-section in; Figure 12 This invention Figure 10 DD profile in; Figure 13 This is a structural diagram of the middle top beam provided by the present invention; Figure 14 This invention Figure 13 EE cross-section diagram in.

[0025] Description of reference numerals: 1. Front roof outer panel; 101. Front reinforcement rib; 102. Front sunshade mounting slot; 103. Luggage rack mounting area; 104. Luggage rack mounting hole; 105. Top trim mounting hole; 106. Middle reinforcement rib; 2. Roof outer panel with laser radar; 201. Radar mounting area; 3. Rear roof outer panel; 301. Digital mounting area; 302. Rear reinforcement rib 1; 303. Rear reinforcement rib 2; 4. Sunroof connecting plate; 4 01. Left sunroof connecting plate; 402. Right sunroof connecting plate; 403. Rear sunshade mounting slot; 404. Boss; 405. Flanged area; 5. Crossbeam; 6. Front top crossbeam; 7. Middle top crossbeam; 8. Rear top crossbeam; 9. Front sunshade; 10. Rear sunshade; 11. Top cover outer panel without lidar; 1101. Decorative cover mounting area; 12. Vibration energy recovery module; 13. Mounting nuts; 14. Side panel. DETAILED DESCRIPTION

[0026] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0027] The embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0028] Example: like Figure 1 、 Figure 2 As shown, the present invention provides a split multifunctional roof structure for an automobile, comprising a roof outer panel, a sunroof connecting plate 4 and a crossbeam 5. The roof outer panel comprises a front roof outer panel 1 and a rear roof outer panel 3. The crossbeam 5 comprises a front roof crossbeam 6, a middle roof crossbeam 7 and a rear roof crossbeam 8, which are sequentially connected to the side panels 14. like Figure 3 As shown, the sunroof connecting plate 4 includes a left sunroof connecting plate 401 and a right sunroof connecting plate 402. One end of the left sunroof connecting plate 401 and the right sunroof connecting plate 402 are respectively connected to the rear end of the front roof outer panel 1, and the other end of the left sunroof connecting plate 401 and the right sunroof connecting plate 402 are respectively connected to the front end of the rear roof outer panel 3. Furthermore, the front roof outer panel 1, the rear roof outer panel 3, the left sunroof connecting panel 401, and the right sunroof connecting panel 402 form a large roof assembly, the front roof outer panel 1 is located at the front end of the roof assembly, the rear roof outer panel 3 is located at the rear end of the roof assembly, and the crossbeam 5 is fixedly connected to the lower end of the roof assembly, that is, the front roof crossbeam 6 and the middle roof crossbeam 7 are fixedly connected to the lower end of the front roof outer panel 1, and the rear roof crossbeam 8 is fixedly connected to the lower end of the rear roof outer panel 3; Specifically, the split multifunctional roof structure can realize the entire roof assembly by splicing the front roof outer panel 1, the rear roof outer panel 3 and the sunroof connecting panel 4 according to different materials and different material thickness ratios, strengthening where necessary and weakening where necessary. The roof outer panel and the sunroof connecting panel 4 are stamped as a single piece and then installed by welding. On the one hand, the single-piece stamping achieves the highest material utilization rate of each single piece. On the other hand, the single-piece stamping has low process requirements, which is conducive to the control of part size accuracy and lower cost.

[0029] like Figure 4 As shown, the figure is a cross-sectional view of the front roof outer panel 1, as shown Figure 12As shown, the figure is a cross-sectional view of the middle top crossbeam 7. The front roof outer panel 1 and the middle top crossbeam 7 are integrally formed, and a U-shaped groove is formed at the upper end and a W-shaped groove is formed at the lower end. When the top cover upper member is installed, the middle top crossbeam 7 is fixedly connected to the lower end of the front roof outer panel 1, so that the U-shaped groove and the W-shaped groove form a double-hole cavity. Specifically, when the roof is installed, the front roof cross beam 6, the middle roof cross beam 7, and the rear roof cross beam 8 are placed on the connecting plate of the side panel 14 in sequence, and then welded to the entire roof assembly, so that the U-shaped groove and the W-shaped groove on the front roof outer panel 1 and the middle roof cross beam 7 form a cavity, thereby enhancing the overall strength of the roof assembly.

[0030] like Figure 6 、 Figure 7 As shown, the front roof outer panel 1 is divided into a roof outer panel 2 with a laser radar and a roof outer panel 11 without a laser radar, wherein the roof outer panel 2 with a laser radar is provided with a radar installation area 201, and the roof outer panel 11 without a laser radar is provided with a decorative cover installation area 1101; Specifically, the front roof outer panel 1 is provided with two configurations according to market demand, one configuration is a top cover outer panel 2 with a laser radar, and the other configuration is a top cover outer panel 11 without a laser radar. The difference between the two configurations is that the top cover outer panel 11 without a laser radar does not have a radar, but only a decorative cover. Users can choose the two top cover modes of the front roof outer panel 1 according to their own needs. Furthermore, the front roof outer panel 1 is further provided with a front reinforcing rib 101, a front sunshade mounting groove 102, a luggage rack mounting area 103 and a middle reinforcing rib 106, wherein the front sunshade mounting groove 102 is located at the top of the front roof outer panel 1, the front reinforcing rib 101 is located at the front end of the front sunshade mounting groove 102, and the middle reinforcing rib 106 is located at the rear end of the front sunshade mounting groove 102; Specifically, the front reinforcing ribs 101 and the middle reinforcing ribs 106 serve to strengthen the entire front roof outer panel 1. The front sunshade mounting groove 102 is set in a U-shape, which not only avoids collision between the mounting point and the skylight glass to ensure a safe distance, but also strengthens the rigidity of the sunshade mounting point, which is conducive to improving the rigidity of the mounting point. Furthermore, luggage rack mounting areas 103 are distributed on both sides of the front roof outer panel 1 , and luggage rack mounting areas 103 are provided with luggage rack mounting holes 104 and roof trim mounting holes 105 . The luggage rack mounting holes 104 are evenly distributed at both ends of the luggage rack mounting areas 103 , and the roof trim mounting holes 105 are provided at the front and rear ends of the luggage rack mounting holes 104 . The roof trim mounting holes 105 are distributed on the roof to provide mounting points for the roof trim. Specifically, the luggage rack mounting area 103 provides a mounting point for a luggage rack or a roof trim. The luggage rack mounting holes 104 and the roof trim mounting holes 105 can be set in size and number as needed. The user can choose the luggage rack or the roof trim as needed, and can switch between the luggage rack and the roof trim without having to open a new roof cover. It should be noted that the luggage rack in this application is installed in an internal manner. Compared with traditional welded bracket luggage racks and external luggage racks, the internal luggage rack in this application has a stronger load-bearing capacity.

[0031] like Figure 8 、 Figure 9 As shown, the sunroof connecting plate 4 is provided with a rear sunshade curtain installation groove 403, a boss 404, and a flange area 405, wherein the rear sunshade curtain installation groove 403 is located at the top of the sunroof connecting plate 4, the flange area 405 is located on the inner side of the sunroof connecting plate 4, and the boss 404 is distributed at the front and rear ends of the rear sunshade curtain installation groove 403; Furthermore, a luggage rack mounting area 103 is also provided on the outer side of the sunroof connecting plate 4 to provide installation space for a luggage rack or a roof trim. The flange area 405 is a flange structure, and the boss 404 and the flange area 405 further enhance the overall strength of the roof assembly. Specifically, the rear sunshade installation groove 403 is set to be U-shaped, which can not only avoid the collision between the installation point and the skylight glass to ensure a safe distance, but the U-shape can also enhance the rigidity of the sunshade installation point, which is conducive to improving the rigidity of the installation point.

[0032] like Figure 5 As shown, the rear roof outer panel 3 is provided with a digital installation area 301, a rear reinforcing rib 1 302, and a rear reinforcing rib 2 303. The digital installation area 301 is located in the center and front of the rear roof outer panel 3, the rear reinforcing rib 1 302 is located behind the digital installation area 301, and the rear reinforcing rib 2 303 is located at both ends of the digital installation area 301. Specifically, the digital installation area 301 provides installation space for the GNSS (Global Navigation Satellite System) and the TBOX (Telematics Box, on-board electrical components). The rear roof outer panel 3 is provided with two gluing areas. The front end of the rear reinforcing rib 1 302 is the rear skylight glass gluing area A, and the area between the rear reinforcing rib 1 302 and the rear reinforcing rib 2 303 is the rear skylight glass gluing area B. The rear skylight glass gluing areas A and B ensure the sealing of the rear skylight glass. like Figure 6 、 Figure 7As shown, three gluing areas are provided on the front roof outer panel 1. Among them, the area between the front sunshade mounting groove 102 and the luggage rack mounting area 103 is the front skylight glass gluing area A, the rear end of the front roof outer panel 1 is the front skylight glass gluing area B, and the area between the radar mounting area 201 or the decorative cover mounting area 1101 and the front reinforcement rib 101 is the gluing area C. The gluing area C ensures the sealing of the front windshield, and the front skylight glass gluing areas A and B ensure the sealing of the front skylight glass. Specifically, the three glued areas on the front roof outer panel 1 and the two glued areas on the rear roof outer panel 3 are not only beneficial to the sealing of the front windshield, front skylight glass and rear skylight glass to prevent water leakage, but the increase in the glued areas can also help the skylight glass to be evenly stressed on the sheet metal, thereby enhancing the strength of the roof and helping to increase the top pressure of the entire vehicle.

[0033] like Figure 10 、 Figure 11 As shown, a front sunshade curtain 9 is provided between the front top crossbeam 6 and the middle top crossbeam 7, a rear sunshade curtain 10 is provided between the middle top crossbeam 7 and the rear top crossbeam 8, a front end of the front sunshade curtain 9 is connected to the front top crossbeam 6, and both sides of the front sunshade curtain 9 are connected to the front roof outer panel 1, a front end of the rear sunshade curtain 10 is connected to the middle top crossbeam 7, and a drive motor and a vibration energy recovery module 12 are provided in a cavity formed by the fixed connection between the middle top crossbeam 7 and the front roof outer panel 1; Furthermore, the drive motor drives the sunshade to work, and the vibration energy recovery module 12 includes a piezoelectric ceramic array, a neodymium magnet coil array, a collection unit, and a management unit. The piezoelectric ceramic array generates alternating current through high-frequency vibration, and the neodymium magnet coil array generates alternating current through low-frequency vibration. The collection unit converts the alternating current into direct current through a rectifier circuit and a converter and outputs and stores it. The management unit is used to preferentially allocate electrical energy to the drive motor for use. Specifically, every four piezoelectric units in the piezoelectric ceramic array are configured with a group of conversion modules, which receive a vibration frequency of 50-200Hz and generate alternating current through high-frequency vibration. The neodymium magnet coil array uses four magnets with alternating polarity to form a high-energy dense magnetic array, which receives a vibration frequency of 10-50Hz and generates alternating current through low-frequency vibration. The collection unit converts the alternating current generated in the piezoelectric ceramic array and the neodymium magnet coil array into direct current output through a rectifier circuit, and then adjusts the direct current output to a stable voltage through a converter through capacitor filtering and a voltage regulator chip to achieve stable output. Finally, the electrical energy is stored in a supercapacitor, and the management unit distributes the electrical energy to the drive motor through priority power supply logic to drive the sunshade. In this way, the bumpy vibration energy generated during the driving of the car can be converted into electrical energy for recycling.

[0034] like Figure 9 As shown, the figure is a cross-sectional view of the skylight connecting plate 4, and the skylight connecting plate 4 is also provided with a mounting nut 13; like Figure 13 、 Figure 14 As shown, the lower end of the middle top crossbeam 7 is connected to an entertainment display 701 for rear passengers to use for leisure and entertainment. A mounting nut 13 is also provided on the middle top crossbeam 7; Specifically, mounting nuts 13 can be provided on the top cover outer panel, the sunroof connecting plate 4, the crossbeam 5 and the middle top crossbeam 7 as needed. The mounting nuts 13 are used to fix the front sunshade 9, the rear sunshade 10 and the entertainment display screen 701 respectively. It should be noted that the installation method of the present application is not limited to nuts, and can also be replaced by fixing methods such as rivets.

[0035] Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A split-type multifunctional roof structure for an automobile, comprising a roof outer panel, a sunroof connecting plate, and a crossbeam, wherein the roof outer panel and the sunroof connecting plate form a roof assembly, and the crossbeam is fixedly connected to the lower end of the roof assembly, characterized in that: The roof outer panel includes a front roof outer panel and a rear roof outer panel, wherein the front roof outer panel is divided into a roof outer panel with a laser radar and a roof outer panel without a laser radar, and the cross beam includes a front roof cross beam, a middle roof cross beam and a rear roof cross beam, which are connected to the side panels in sequence; The front roof outer panel and the middle roof cross beam are both integrally formed, and are both formed with a U-shaped groove at the upper end and a W-shaped groove at the lower end. The front roof cross beam and the middle roof cross beam are fixedly connected to the lower end of the front roof outer panel, and the rear roof cross beam is fixedly connected to the lower end of the rear roof outer panel, so that the U-shaped groove and the W-shaped groove form a double-hole cavity, and the drive motor and the vibration energy recovery module are arranged in the cavity; The vibration energy recovery module includes a piezoelectric ceramic array, a neodymium magnet coil array, a collection unit and a management unit. The piezoelectric ceramic array generates alternating current through high-frequency vibration, and the neodymium magnet coil array generates alternating current through low-frequency vibration. The collection unit converts the alternating current into direct current through a rectifier circuit and a converter and outputs and stores it. The management unit is used to preferentially allocate electrical energy to the drive motor for use.

2. The split multifunctional automobile roof structure according to claim 1, characterized in that: A radar installation area is provided on the outer panel of the roof with a laser radar, and a decorative cover installation area is provided on the outer panel of the roof without a laser radar. An entertainment display is connected to the lower end of the middle roof beam. A front sunshade is provided between the front roof beam and the middle roof beam, and a rear sunshade is provided between the middle roof beam and the rear roof beam. The drive motor drives the sunshade to operate. The front top cover outer panel is also provided with a front reinforcing rib, a front sunshade installation groove, a luggage rack installation area and a middle reinforcing rib. The front sunshade installation groove is set to a U shape for installing the front sunshade. The front end of the front sunshade is connected to the front top crossbeam, and the two sides of the front sunshade are connected to the front top cover outer panel.

3. The split multifunctional automobile roof structure according to claim 2, characterized in that: Three glue coating areas are provided on the front top cover outer panel, among which the front skylight glass glue coating area A is between the front sunshade mounting groove and the luggage rack mounting area, the front skylight glass glue coating area B is at the rear end of the front top cover outer panel, and the glue coating area C is between the radar mounting area or the decorative cover mounting area and the front reinforcement rib.

4. The split multifunctional automobile roof structure according to claim 1, characterized in that: The rear top cover outer plate is provided with a digital installation area, a rear reinforcing rib 1 and a rear reinforcing rib 2, and the digital installation area provides installation space for GNSS and TBOX.

5. The split multifunctional automobile roof structure according to claim 4, characterized in that: Two glue coating areas are provided on the outer panel of the rear top cover, wherein the front end of the rear reinforcing rib 1 is the glue coating area A for the rear skylight glass, and the area between the rear reinforcing rib 1 and the rear reinforcing rib 2 is the glue coating area B for the rear skylight glass.

6. The split multifunctional automobile roof structure according to claim 2, characterized in that: The luggage rack mounting area is provided with luggage rack mounting holes and top trim strip mounting holes. The luggage rack mounting holes are evenly distributed at both ends of the luggage rack mounting area, and the top trim strip mounting holes are set at the front and rear ends of the luggage rack mounting holes.

7. The split multifunctional automobile roof structure according to claim 6, characterized in that: The luggage rack is installed in the luggage rack installation area in an internal installation manner.

8. The split multifunctional automobile roof structure according to claim 1, characterized in that: The sunroof connecting plate includes a left sunroof connecting plate and a right sunroof connecting plate, and both the left sunroof connecting plate and the right sunroof connecting plate are provided with a rear sunshade installation groove, a boss, a flange area and a luggage rack installation area.

9. The split-type multifunctional automobile roof structure according to claim 8, characterized in that: The flange area is located on the inner side of the sunroof connecting plate, and the bosses are distributed at the front and rear ends of the rear sunshade installation groove. The rear sunshade installation groove is set to a U shape for installing the rear sunshade, and the front end of the rear sunshade is connected to the middle top crossbeam.

10. The split-type multifunctional automobile roof structure according to claim 1, characterized in that: The top cover outer plate and the skylight connecting plate are stamped as a single piece and then assembled by welding. The top cover outer plate, the skylight connecting plate and the crossbeam are provided with mounting nuts.

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