A backsheet assembly for a photovoltaic assembly
By designing a U-shaped protective panel assembly, the problems of low structural integration and insufficient torsional stiffness of the roof photovoltaic system were solved, which improved the overall integrity and aesthetics of the photovoltaic assembly and reduced assembly errors, wind noise, and rainwater leakage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN SHENGQI NEW ENERGY VEHICLE TECHNOLOGY CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-06-26
AI Technical Summary
Existing rooftop photovoltaic systems lack protective panels, resulting in problems such as low structural integration, insufficient torsional stiffness, large assembly gaps, increased wind noise, and rainwater leakage.
Design a protective plate assembly for photovoltaic systems, including a rear protective plate assembly, a side protective plate assembly, and a front protective plate assembly, forming a U-shaped structure. The assembly is connected by snaps and slots to enhance the overall torsional rigidity, and the segmented design improves the convenience of production and transportation.
It improves the overall integrity and aesthetics of the photovoltaic assembly, while significantly enhancing torsional stiffness, reducing assembly errors, and preventing wind noise and rainwater leakage.
Smart Images

Figure CN224408952U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle photovoltaic systems, specifically a protective plate assembly for a photovoltaic assembly. Background Technology
[0002] With the rapid development of the new energy vehicle industry, photovoltaic integration technology has gradually become an important direction for improving vehicle range and energy efficiency.
[0003] In the prior art, rooftop photovoltaic systems typically do not have a protective panel structure; for example, the content disclosed in patent CN 221575267 U - A Rooftop Solar Photovoltaic Panel.
[0004] For some products, a protective panel structure is required. However, the protective panels of traditional photovoltaic systems are mostly independently installed flat plates or simple bent parts, which have the following significant drawbacks:
[0005] Low structural integration: Traditional protective plates are used only as single protective functional components and do not form a systematic framework structure.
[0006] The lack of mechanical connection between the components results in insufficient overall torsional stiffness, which can easily lead to resonance deformation during vehicle dynamic driving, affecting the stability of the photovoltaic panel and the power generation efficiency.
[0007] Existing guard plates mostly use rigid bolt connections and lack pre-positioning mechanisms.
[0008] There is often an assembly gap (usually >2mm) between the side guards and the front and rear guards, which not only affects the consistency of appearance, but may also cause increased wind noise and rainwater leakage.
[0009] In addition, large-sized injection molded parts are prone to warping and deformation due to process limitations, which further exacerbates assembly errors.
[0010] Therefore, in order to improve or solve at least one of the above technical problems, it is necessary to optimize the design of the existing vehicle photovoltaic structure. Utility Model Content
[0011] The purpose of this invention is to provide a protective plate assembly that is applicable to vehicle-mounted photovoltaic assemblies and has high strength.
[0012] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0013] A protective plate assembly for a photovoltaic system includes a rear protective plate assembly, a side protective plate assembly, and a front protective plate assembly; the two ends of the side protective plate assembly overlap the rear protective plate assembly and the front protective plate assembly, respectively.
[0014] The guard plate assembly includes two side guard plate assemblies which are distributed at intervals relative to each other; the rear guard plate assembly and the front guard plate assembly are connected through the side guard plate assemblies; the horizontal projection of the guard plate assembly is in a zigzag shape.
[0015] Each of the side guard plate assemblies includes a plurality of monomer guard plate assemblies; adjacent monomer guard plate assemblies are connected in sequence.
[0016] The monomer guard plate assembly includes a monomer guard plate body, and installation buckles are provided on the monomer guard plate body; the monomer guard plate body is an arc-shaped plate.
[0017] The rear guard plate assembly includes a rear end guard plate body, and installation buckles are provided on the rear end guard plate body.
[0018] The rear end guard plate body includes a rear end guard plate substrate, a diversion inclined plate is provided on one side of the rear end guard plate substrate away from the upper photovoltaic structure; a rear guard plate overlapping plate is provided on one side of the rear end guard plate substrate close to the upper photovoltaic structure.
[0019] The horizontal projection of the rear end guard plate body is in a [ shape.
[0020] The front guard plate assembly includes an upper front guard plate assembly and a lower front guard plate assembly; the upper front guard plate assembly overlaps on the lower front guard plate assembly; the lower front guard plate assembly is connected to the side guard plate assembly, and the upper front guard plate assembly is connected to the lower photovoltaic structure.
[0021] The lower front guard plate assembly includes a lower front guard plate body, and installation buckles are provided on the lower front guard plate body; a guard plate overlapping flange is provided on one side of the lower front guard plate body close to the upper front guard plate assembly.
[0022] The upper front guard plate assembly includes an upper front guard plate body; installation buckles and a fixing mechanism are provided on the upper front guard plate body; the fixing mechanism includes fixing nails which are inserted into the sliding frame in the lower photovoltaic structure.
[0023] The guard plate assembly further includes an overlapping mechanism, the overlapping mechanism includes overlapping connecting plates provided on the rear guard plate assembly, the side guard plate assembly and / or the front guard plate assembly and overlapping buckles provided on the rear guard plate assembly, the side guard plate assembly and / or the front guard plate assembly; overlapping card slots are provided on the overlapping connecting plates.
[0024] The advantages of the present utility model are as follows:
[0025] The present utility model discloses a guard plate assembly for a photovoltaic assembly.
[0026] The protective plate assembly disclosed in this utility model is mainly located around the photovoltaic assembly. It not only provides external protection and prevents the internal components of the photovoltaic assembly from being exposed, but also has a good aesthetic effect and ensures the integrity of the photovoltaic assembly. At the same time, through the design of the rear protective plate assembly, two side protective plate assemblies and the front protective plate assembly, this utility model makes the overall protective plate assembly have a U-shaped structure. This U-shaped layout can maintain the lightweight of the protective plate assembly while significantly improving the overall torsional stiffness of the protective plate assembly. Attached Figure Description
[0027] The following is a brief explanation of the contents of each of the accompanying drawings and the markings in the drawings:
[0028] Figure 1 This is a first-view structural schematic diagram of the protective plate assembly of this utility model.
[0029] Figure 2 for Figure 1 A magnified view of the local structure.
[0030] Figure 3 This is a first-view structural schematic diagram of the protective plate assembly of this utility model.
[0031] Figure 4 This is a schematic diagram of the structure of the protective plate assembly after removing the upper front protective plate assembly in this utility model.
[0032] Figure 5 This is a schematic diagram of the structure of this utility model when it is assembled on a photovoltaic assembly.
[0033] Figure 6 This is a schematic diagram of the upper front guard plate assembly in this utility model.
[0034] The markings in the above figures are all:
[0035] 1. Protective panel assembly; 11. Front protective panel assembly; 12. Side protective panel assembly; 13. Rear protective panel assembly; 14. Overlapping mechanism; 2. Upper photovoltaic structure. Detailed Implementation
[0036] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and the description of the preferred embodiments.
[0037] A protective plate assembly for a photovoltaic (PV) assembly includes a rear protective plate assembly, a side protective plate assembly, and a front protective plate assembly. The two ends of the side protective plate assembly overlap the rear and front protective plate assemblies, respectively. Each protective plate assembly includes two side protective plate assemblies spaced apart from each other. The rear and front protective plate assemblies are connected via the side protective plate assemblies. The horizontal projection of the protective plate assembly is U-shaped. This protective plate assembly is primarily located around the perimeter of the PV assembly, providing external protection and preventing the exposure of internal components. It also enhances aesthetics and ensures the integrity of the PV assembly. Furthermore, the design of the rear protective plate assembly, the two side protective plate assemblies, and the front protective plate assembly creates a U-shaped structure, which maintains the lightweight nature of the protective plate assembly while significantly improving its overall torsional stiffness.
[0038] In this utility model, the photovoltaic assembly includes a main photovoltaic frame and a sliding frame; the sliding frame can move on the main photovoltaic frame, and generally the sliding frame can achieve its movement on the main photovoltaic frame through a driving structure.
[0039] In addition, the photovoltaic assembly also includes an upper photovoltaic structure and a lower photovoltaic structure. Generally, the upper photovoltaic structure includes upper photovoltaic panels, which are arranged on the main photovoltaic frame. The lower photovoltaic structure mainly includes a sliding frame and lower photovoltaic panels, which are connected to the sliding frame.
[0040] In this utility model, except for the upper front protective plate assembly 111 which is connected to the sliding frame, the other protective plate structures are directly fixedly connected to the main photovoltaic frame.
[0041] There are various ways to drive and connect the sliding frame to the main photovoltaic frame. The specific structure will not be described in detail here. Generally, the sliding frame can be connected to the inner wall of the main photovoltaic frame through a sliding or sliding rail mechanism. The sliding frame is connected to a driving structure, which can be an electric cylinder, or a combination of a motor, lead screw and slider. The purpose is to drive the sliding frame to move on the main photovoltaic frame.
[0042] The protective plate assembly 1 disclosed in this utility model is mainly used to surround and protect the outer periphery of the protective plate assembly for photovoltaic assembly. At the same time, the protective plate assembly 1 is also used as an external decorative component to ensure the aesthetics of the protective plate assembly for photovoltaic assembly.
[0043] Specifically, the skid plate assembly 1 described in this utility model includes a rear skid plate assembly 13, a side skid plate assembly 12, and a front skid plate assembly 11. In this utility model, the rear skid plate assembly 13 is generally arranged on the side of the vehicle near the rear, the front skid plate assembly 11 is arranged on the side of the vehicle near the front, and the side skid plate assembly 12 is arranged on both sides of the roof, generally arranged parallel to the X-axis of the vehicle.
[0044] In this utility model, the two ends of the side guard plate assembly 12 are respectively attached to the rear guard plate assembly 13 and the front guard plate assembly 11. Based on this arrangement, the side guard plate assembly 12, the front and rear guard plate assemblies, and the front guard plate assembly 11 have obvious mutual positional limitation functions, which better ensures the accuracy of the relative installation position of the side guard plate assembly 12, the front and rear guard plate assemblies, and the front guard plate assembly 11.
[0045] Furthermore, in this utility model, the protective plate assembly 1 includes two side protective plate assemblies 12, which are distributed relatively at intervals. The rear protective plate assembly 13 is connected to the front protective plate assembly 11 through the side protective plate assemblies 12. The horizontal projection of the protective plate assembly 1 is U-shaped. In this utility model, the two side protective plates mainly protect the sides of the photovoltaic assembly. The rear protective plate assembly 13 and the front protective plate assembly 11 are connected through the side protective plate assemblies 12. The connection method is generally a snap-fit, but other connection methods can be selected as needed. Based on the above design, the protective plate assembly 1 disclosed in this utility model forms a four-sided enclosed frame system, and the horizontal projection of the protective plate assembly 1 is U-shaped; that is, a hollow rectangular ring structure. This U-shaped layout significantly improves the overall torsional stiffness while maintaining lightweight.
[0046] The side guard assembly 12 serves as a longitudinal force transmission path, dispersing the lateral impact on the front / rear guards; the U-shaped space area can be used to arrange the main photovoltaic frame and photovoltaic panel structure.
[0047] In addition, in this utility model, the rear guard plate assembly 13, the front guard plate assembly 11 and the side guard plate assembly 12 are connected to each other mainly through the cooperation of buckles and slots to realize the connection of adjacent components. At the same time, the rear guard plate assembly 13 and the front guard plate assembly 11 are also connected to the main photovoltaic frame 4 or the sliding frame through the side guard plate assembly 12 by snap-fit.
[0048] Of course, some components, such as the upper front skid plate assembly 111 above the front skid plate assembly 11, need to move with the sliding frame. In order to better ensure the stability of its installation, in this utility model, in addition to using snap-fit connection, the upper front skid plate assembly 111 can also be equipped with fasteners for additional locking and fixing.
[0049] Furthermore, in this utility model, each side guard plate assembly 12 includes multiple individual guard plate assemblies 121; adjacent individual guard plate assemblies 121 are connected in sequence. Each side guard plate assembly 12 in this utility model is assembled from multiple individual guard plate assemblies 121. This design is advantageous because individual guard plate assemblies 121 are generally injection molded parts. When the part size is large, the injection molding yield is low. At the same time, the injection molded parts are easy to transport and transfer evenly. This utility model facilitates the production of side guard plate assemblies 12 by segmenting the side guard plate, and also facilitates the subsequent transportation and transfer of side guard plate assemblies 12.
[0050] In this utility model, the side guard plate assembly 12 is designed in segments, which can increase the adaptability of the guard plate assembly 1: by increasing or decreasing the number of individual guard plate assemblies 121, the roof length of Class A to Class D vehicles can be flexibly matched; when a single individual guard plate assembly 121 is damaged, it can be replaced independently without disassembling the entire side guard plate assembly 12.
[0051] Furthermore, in this utility model, the single protective plate assembly 121 includes a single protective plate body 1211, and the single protective plate body 1211 is provided with mounting buckles 1-4; in this utility model, the single protective plate body 1211 is the main structure of the single protective plate assembly 121, and is the side external trim of the protective plate assembly for photovoltaic assembly, while the mounting buckles 1-4 are mainly a connector, which facilitates the subsequent installation by snapping them onto the main photovoltaic frame 4.
[0052] In this utility model, the single protective plate body 1211 is an arc-shaped plate; this design makes the single protective plate body 1211 itself form a hook structure, which makes it convenient to hang its upper end on the edge of the main photovoltaic frame 4 during subsequent use, thus better ensuring the stability and accuracy of the installation position of the single protective plate body 1211.
[0053] In this utility model, the single protective plate body 1211 is generally selected by one-piece injection molding; of course, the specific production method is selected according to the design requirements.
[0054] Furthermore, in this utility model, the rear guard plate assembly 13 includes a rear guard plate body 1301, and the rear guard plate body 1301 is provided with mounting buckles 1-4; the rear guard plate body 1301 is located near the rear end of the vehicle in the photovoltaic assembly guard plate assembly, and the mounting buckles 1-4 are mainly used for the installation and fixing of the rear guard plate body 1301 at the rear end of the main photovoltaic frame 4.
[0055] In this utility model, the rear guard plate body 1301 includes a rear guard plate base plate 131. The rear guard plate base plate 131 is provided with a flow guide plate 133 on the side away from the upper photovoltaic structure 2. The rear guard plate base plate 131 is provided with a rear guard plate overlapping plate 132 on the side close to the upper photovoltaic structure 2. The rear guard plate base plate 131 is arranged longitudinally, while the flow guide plate 133 is inclined. One end is connected to the rear guard plate base plate 131, and the other end is equivalent to free extension. The flow guide plate plays a good role in guiding airflow, which helps to reduce the wind resistance of vehicle operation.
[0056] The subsequent protective plate overlap plate 132 is located on the upper edge of the rear protective plate substrate 131, and is mainly overlapped on the upper edge of the main photovoltaic frame 4 or the upper photovoltaic panel 21; it acts as a hanger to ensure the accuracy and stability of its subsequent installation position.
[0057] In this utility model, the rear guard plate body 1301 is horizontally projected in the shape of the character "[". This arrangement ensures that the joint between the rear guard plate assembly 13 and the side guard plate assembly 12 is located on the side of the vehicle body, thus guaranteeing the integrity of the front end of the photovoltaic assembly guard plate assembly.
[0058] Furthermore, in this utility model, the front guard plate assembly 11 includes an upper front guard plate assembly 111 and a lower front guard plate assembly 112; the lower front guard plate assembly 112 is connected to the side guard plate assembly 12, and the upper front guard plate assembly 111 is connected to the lower photovoltaic structure; in this utility model, the front guard plate assembly 11 is mainly arranged at the end of the photovoltaic assembly guard plate assembly near the front of the vehicle; the lower front guard plate assembly 112 is a fixing component, generally directly fixed to the end of the adjacent side guard plate assembly 12 and the main photovoltaic frame 4.
[0059] The upper front guard plate assembly 111 is a movable part, which is mainly connected to the sliding frame and moves together with the sliding frame.
[0060] In addition, in this utility model, the upper front guard plate assembly 111 overlaps the lower front guard plate assembly 112; based on the above design, this utility model facilitates the relative installation and positioning between the upper front guard plate assembly 111 and the lower front guard plate assembly 112.
[0061] Meanwhile, the lower front guard plate assembly 112 described in this utility model includes a lower front guard plate body 1122, and the lower front guard plate body 1122 is provided with mounting buckles 1-4; the lower front guard plate body 1122 is the main structure of the lower front guard plate assembly 112, and the mounting buckles 1-4 provided on the lower front guard plate body 1122 are mainly used for the connection between the lower front guard plate body 1122 and adjacent components, which are generally the main photovoltaic frame 4 or the adjacent side guard plate assembly 12.
[0062] In addition, the lower front guard plate body 1122 in this utility model is provided with a guard plate overlapping flange 1121 on the side near the upper front guard plate assembly 111; the guard plate overlapping flange 1121 is located on the side of the lower front guard plate body 1122 near the main photovoltaic frame 4. This arrangement makes a stepped groove formed at the upper end of the lower front guard plate body 1122, which can realize the installation and positioning of the upper front guard plate body 1111.
[0063] Furthermore, in this utility model, the upper front guard plate assembly 111 includes an upper front guard plate body 1111; the upper front guard plate body 1111 is provided with mounting buckles 1-4 and a fixing mechanism; the fixing mechanism includes fixing nails 1112, which are inserted into the sliding frame in the lower photovoltaic structure; in this utility model, the upper front guard plate body 1111 is the main structure of the upper front guard plate assembly 111; and the mounting buckles 1-4 are used for the installation connection between them and the sliding frame. In addition, in this utility model, the fixing mechanism mainly acts as a connector to realize the fixed installation of the upper front guard plate assembly 111 on the sliding frame.
[0064] Furthermore, the rear guard plate assembly 13 described in this utility model also includes an overlapping mechanism 14, which mainly serves as an overlapping installation between two plate structures.
[0065] The overlapping mechanism 14 described in this utility model includes an overlapping connecting plate 141 disposed on the rear guard plate assembly 13, the side guard plate assembly 12 and / or the front guard plate assembly 11, and an overlapping buckle 142 disposed on the rear guard plate assembly 13, the side guard plate assembly 12 and / or the front guard plate assembly 11; the overlapping connecting plate 141 is provided with an overlapping slot; generally, when two adjacent plates are required to be connected by the overlapping mechanism 14, after one plate is provided with an overlapping connecting plate 141, the other plate is provided with an overlapping buckle 142, and the installation and fixation of the two adjacent plates are realized by the overlapping buckle 142 engaging with the overlapping connecting plate 141.
[0066] In this utility model, it is required that each end of the lower front guard plate body 1122 is provided with an overlapping connecting plate 141, and the adjacent single guard plate body 1211 is provided with an overlapping buckle 142.
[0067] It is required that each end of the rear guard plate body 1301 is provided with an overlapping connecting plate 141, and the adjacent single guard plate body 1211 is provided with an overlapping buckle 142.
[0068] For two adjacent single-piece guard plate bodies 1211, one single-piece guard plate body 1211 is required to have an overlapping connecting plate 141, and the other single-piece guard plate body 1211 is required to have an overlapping buckle 142 at its end. Based on the above configuration, the side guard plate assembly 12 can be overlapped and installed on the rear guard plate assembly 13 and the front guard plate assembly 11.
[0069] Obviously, the specific implementation of this utility model is not limited to the above-mentioned methods. Any non-substantial improvements made using the inventive concept and technical solution of this utility model are within the protection scope of this utility model.
Claims
1. A protective plate assembly for a photovoltaic system, characterized in that, It includes a rear skid plate assembly, a side skid plate assembly, and a front skid plate assembly; the two ends of the side skid plate assembly overlap the rear skid plate assembly and the front skid plate assembly respectively; the skid plate assembly includes two side skid plate assemblies, which are distributed relatively at intervals; the rear skid plate assembly and the front skid plate assembly are connected through the side skid plate assemblies; the horizontal projection of the skid plate assembly is U-shaped.
2. The photovoltaic assembly with protective plate according to claim 1, characterized in that, Each of the side guard assemblies comprises multiple individual guard assemblies; adjacent individual guard assemblies are connected in sequence.
3. A protective plate assembly for a photovoltaic assembly according to claim 2, characterized in that, The single-unit protective plate assembly includes a single-unit protective plate body, and the single-unit protective plate body is provided with mounting buckles; the single-unit protective plate body is an arc-shaped plate.
4. A protective plate assembly for a photovoltaic assembly according to claim 1, characterized in that, The rear guard assembly includes a rear guard body, and the rear guard body includes mounting clips provided on the rear guard body.
5. A protective plate assembly for a photovoltaic assembly according to claim 4, characterized in that, The rear protective plate body includes a rear protective plate substrate, and a flow guiding inclined plate is provided on the side of the rear protective plate substrate away from the upper photovoltaic structure; a rear protective plate overlapping plate is provided on the side of the rear protective plate substrate close to the upper photovoltaic structure.
6. A protective plate assembly for a photovoltaic assembly according to claim 5, characterized in that, The horizontal projection of the rear end guard plate body is in the shape of the character "[".
7. A protective plate assembly for a photovoltaic assembly according to claim 1, characterized in that, The front guard assembly includes an upper front guard assembly and a lower front guard assembly; the upper front guard assembly overlaps the lower front guard assembly; the lower front guard assembly is connected to the side guard assembly, and the upper front guard assembly is connected to the lower photovoltaic structure.
8. A protective plate assembly for a photovoltaic assembly according to claim 7, characterized in that, The lower front skid plate assembly includes a lower front skid plate body, which is provided with mounting buckles; the lower front skid plate body is provided with a skid plate overlap flange on the side near the upper front skid plate assembly.
9. A protective plate assembly for a photovoltaic assembly according to claim 7, characterized in that, The upper front guard plate assembly includes an upper front guard plate body; the upper front guard plate body is provided with mounting buckles and a fixing mechanism; the fixing mechanism includes fixing nails, which are inserted into the sliding frame in the lower photovoltaic structure.
10. A protective plate assembly for a photovoltaic assembly according to claim 1, characterized in that, The guard plate assembly also includes an overlap mechanism, which includes an overlap connecting plate disposed on the rear guard plate assembly, the side guard plate assembly and / or the front guard plate assembly, and an overlap buckle disposed on the rear guard plate assembly, the side guard plate assembly and / or the front guard plate assembly; the overlap connecting plate is provided with an overlap groove.