Photovoltaic module and photovoltaic system
By designing foldable photovoltaic modules, the photovoltaic blades are rotatably connected to the base and arranged in an alternating pattern. Combined with a rotating base and meshing structure, the problems of large size and heavy weight of solar panels are solved, and portability and power generation efficiency are improved.
Patent Information
- Application Number
- CN202423069802.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-12-11
AI Technical Summary
Existing solar panels are bulky and heavy, making them inconvenient to carry and store. The flexibility and portability of foldable solar panels still need to be improved.
Design a photovoltaic module including a base and multiple photovoltaic blades. The photovoltaic blades are rotatably connected to the base, can be folded, and are staggered to reduce shading. Stable folding is achieved by using multiple rotating seats and an external gear ring meshing structure. Hinges and connectors improve portability and stability.
This has improved the portability and power generation efficiency of photovoltaic modules, reduced their space requirements, made them easier to carry and store, and increased their power generation efficiency.
Smart Images
Figure CN223528016U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of photovoltaic power generation, in particular to a photovoltaic module and a photovoltaic system. BACKGROUND
[0002] Solar panels are devices that convert solar radiation into electricity through the photovoltaic effect or photochemical effect. Compared with ordinary batteries and rechargeable batteries, solar cells are more energy-saving and environmentally friendly green products.
[0003] In related technologies, solar panels are often large in size and heavy in weight, which are inconvenient to carry and store. Although the existing folding solar panels solve the problem of portability to some extent, their folding mode and flexibility still need to be improved.
[0004] Therefore, it is necessary to design a more portable, flexible and easy-to-store photovoltaic module to meet the power supply needs in different scenarios. CONTENT OF THE INVENTION
[0005] The present application aims to at least solve one of the technical problems existing in the related art.
[0006] To this end, the first aspect of the present application provides a photovoltaic module.
[0007] The second aspect of the present application provides a photovoltaic system.
[0008] Therefore, according to the first aspect of the present application, a photovoltaic module is provided, comprising: a base; a plurality of photovoltaic blades arranged in at least two layers at different heights of the base; each layer of photovoltaic blades is uniformly distributed along the circumference of the base, and any two layers of photovoltaic blades are staggered; wherein the photovoltaic blades and the base are rotationally connected and can be folded relative to the base in the layer direction of the photovoltaic blades.
[0009] In the above technical solution, the photovoltaic blades and the base are rotationally connected, so that the photovoltaic module can be folded when not in use, thereby greatly reducing the occupied space and improving the portability of the photovoltaic module. Further, the photovoltaic blades are arranged in at least two layers at different heights of the base, and any two layers of photovoltaic blades are staggered to form a phase difference, thereby reducing the influence of shadow shielding on the power generation efficiency, so that the photovoltaic blades can utilize sunlight from different angles and directions, thereby facilitating the improvement of the power generation efficiency.
[0010] In some technical solutions, the base comprises: a fixed seat; a rotating shaft connected with the fixed seat; at least one rotating seat rotationally connected with the rotating shaft and capable of rotating around the rotating shaft; wherein the at least two layers of photovoltaic blades are arranged on the fixed seat and the at least one rotating seat, respectively.
[0011] In the above technical solutions, the rotating seat can be driven to rotate by an external power source (motor, etc.), so that the photovoltaic blades are kept staggered when in use and do not block each other, thereby helping to improve the power generation efficiency; when not in use, i.e. when it needs to be stored, the rotating seat can drive the photovoltaic blades on the rotating seat to rotate, so that the photovoltaic blades on the rotating seat and the photovoltaic blades on the fixed seat are kept consistent, thereby greatly reducing the occupied space of the photovoltaic assembly, making it easier to carry and store.
[0012] In some technical solutions, optionally, the rotating shaft is provided with an outer gear ring; the inner side of the rotating seat is provided with an inner gear ring, and the inner gear ring and the outer gear ring are engaged.
[0013] By engaging the inner gear ring and the outer gear ring, the rotating seat can stably rotate around the rotating shaft and can be locked at a specific angle position to prevent the photovoltaic blades from accidentally rotating under the influence of external environmental factors (wind, etc.). This design makes the photovoltaic assembly more stable and safe whether it is in use or folded and stored.
[0014] In some technical solutions, optionally, along the folding direction of the photovoltaic blades, the radii of the fixed seat and the at least one rotating seat gradually decrease, and the radius difference between any two adjacent parts of the fixed seat and the at least one rotating seat is greater than or equal to the thickness of the photovoltaic blades.
[0015] In actual application, the radii of the fixed seat and the rotating seat, or the radii between the two rotating seats, gradually decrease along the folding direction of the photovoltaic blades. In this way, as the folding progresses, the space occupied by each layer gradually decreases, so that the photovoltaic blades can be tightly stacked together after folding, thereby helping to reduce the overall volume after folding. Further, the radius difference between the fixed seat and the rotating seat, or the radius difference between the two rotating seats, is greater than or equal to the thickness of the photovoltaic blades. In this way, it will not happen that the photovoltaic blades cannot be completely folded or stacked irregularly due to thickness problems, so that it can be ensured that the photovoltaic blades can be smoothly stacked together when folding.
[0016] In some technical solutions, optionally, it further includes a hinge; the photovoltaic blades are rotatably connected to the base through the hinge.
[0017] By introducing the hinge, the photovoltaic blades can easily rotate, thereby realizing the functions of folding and unfolding, not only improving the portability of the photovoltaic assembly, but also facilitating users to adjust the angle of the photovoltaic blades as needed. In actual application, the hinge is a mature connecting component with the advantages of simple structure, easy installation and maintenance, etc.
[0018] In some embodiments, the hinge comprises a lower hinge, an upper hinge and a connecting piece; the lower hinge is provided with a first through hole; the upper hinge is connected with the lower hinge and is provided with a second through hole; the base is provided with a first mounting hole coaxial with the first through hole; the photovoltaic blade is provided with a second mounting hole coaxial with the second through hole; the connecting piece comprises at least two connecting pieces, one of which is arranged in the first mounting hole and the first through hole to connect the base and the lower hinge, and the other of which is arranged in the second mounting hole and the second through hole to connect the photovoltaic blade and the upper hinge.
[0019] In some embodiments, the hinge comprises one of a spring hinge, a bearing hinge and a square hinge.
[0020] In some embodiments, the base is provided with a plurality of mounting orientation parts for mounting the photovoltaic blade.
[0021] In practical applications, the plurality of standardized mounting orientation parts provided on the base provide a clear position for the installation of the photovoltaic blade, which not only eliminates the need for complex measurement and positioning work, but also reduces errors and omissions, thereby making the photovoltaic module easier to install and maintain, and ensuring the stability and safety of the photovoltaic module.
[0022] In some embodiments, the photovoltaic blade comprises, from top to bottom, an encapsulation front plate, an upper encapsulation adhesive film, a cell layer, a lower encapsulation adhesive film and an encapsulation back plate.
[0023] According to a second aspect of the present application, a photovoltaic system is provided, comprising the photovoltaic module according to any one of the above embodiments. Thus, the photovoltaic system has all the beneficial effects of any one of the above embodiments, which will not be repeated here.
[0024] Additional aspects and advantages of the present application will become apparent from the following description with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS
[0025] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the accompanying drawings, in which:
[0026] Figure 1 FIG. 1 shows a structural schematic diagram of a photovoltaic module in an embodiment of the present application;
[0027] Figure 2 FIG. 2 shows a structural schematic diagram of a photovoltaic module in an embodiment of the present application;
[0028] Figure 3 FIG. 3 shows a structural schematic diagram of a photovoltaic module in an embodiment of the present application;
[0029] Figure 4 A structural diagram of a photovoltaic blade of a photovoltaic module in an embodiment of the present application is shown;
[0030] Figure 5 A structural diagram of a photovoltaic module in an embodiment of the present application is shown;
[0031] Figure 6 A structural diagram of a base of a photovoltaic module in an embodiment of the present application is shown;
[0032] Figure 7 A structural diagram of a base of a photovoltaic module in an embodiment of the present application is shown;
[0033] Figure 8 A structural diagram of a photovoltaic blade in an embodiment of the present application is shown;
[0034] wherein, Figures 1 to 8 The correspondence between the reference signs and the component names in the accompanying drawings is as follows:
[0035] 100 base; 110 fixed seat; 120 rotating shaft; 121 outer gear ring; 130 rotating seat; 131 inner gear ring; 140 first mounting hole; 150 mounting orientation part; 200 photovoltaic blade; 210 second mounting hole; 220 front encapsulation plate; 230 upper encapsulation film; 240 cell layer; 250 lower encapsulation film; 260 encapsulation back plate; 300 hinge; 310 lower hinge; 311 first through hole; 320 upper hinge; 321 second through hole; 330 connecting piece. DETAILED DESCRIPTION
[0036] In order to enable a more complete understanding of the above-mentioned purposes, features and advantages of the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.
[0037] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.
[0038] The photovoltaic module and the photovoltaic system provided by the embodiments of the present application will be described in detail below with reference to specific embodiments and application scenarios. Figures 1 to 8
[0039] As Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the embodiment of the present application provides a photovoltaic assembly, comprising a base 100 and photovoltaic blades 200.
[0040] Specifically, the photovoltaic blades 200 are multiple and arranged at different heights of the base 100 in at least two layers; each layer of the photovoltaic blades 200 is uniformly distributed along the circumference of the base 100 (e.g. Figure 1 indicated by direction A) and staggered between any two layers of the photovoltaic blades 200 to form a phase difference. The photovoltaic blades 200 and the base 100 are rotationally connected and can be folded in the layer direction of the photovoltaic blades 200 (e.g. Figure 1 indicated by direction B) relative to the base 100.
[0041] In the above embodiment, the photovoltaic blades 200 and the base 100 are rotationally connected, so that the photovoltaic assembly can be folded when not in use, thereby greatly reducing the occupied space and improving the portability of the photovoltaic assembly. Further, the photovoltaic blades 200 are arranged at different heights of the base 100 in at least two layers, and staggered between any two layers of the photovoltaic blades 200 to form a phase difference, thereby reducing the impact of shadow blocking on power generation efficiency, so that the photovoltaic blades 200 can utilize sunlight from different angles and directions, thereby facilitating the improvement of power generation efficiency.
[0042] As shown in Figure 6 and Figure 7 In some embodiments, the base 100 comprises a fixed seat 110, a rotating shaft 120 and a rotating seat 130. Specifically, the rotating shaft 120 is connected with the fixed seat 110; the rotating seat 130 is at least one and rotationally connected with the rotating shaft 120 and can rotate around the rotating shaft 120. Among them, at least two layers of photovoltaic blades 200 are arranged on the fixed seat 110 and the at least one rotating seat 130, respectively.
[0043] In the above embodiment, the rotating seat 130 can be rotated under the drive of an external power source (such as a motor), so that the photovoltaic blades remain staggered when the photovoltaic assembly is in use, and do not block each other, thereby facilitating the improvement of power generation efficiency; when not in use, i.e. when it needs to be stored, the rotating seat 130 can drive the photovoltaic blades 200 on the rotating seat 130 to rotate, so that the photovoltaic blades 200 on the rotating seat 130 and the photovoltaic blades 200 on the fixed seat 110 are consistent, thereby greatly reducing the occupied space of the photovoltaic assembly, making the photovoltaic assembly easier to carry and store.
[0044] In the above embodiment, the rotating shaft 120 is provided with an outer gear ring 121; the inner side of the rotating seat 130 is provided with an inner gear ring 131, and the inner gear ring 131 and the outer gear ring 121 are engaged. Through the engagement of the inner gear ring 131 and the outer gear ring 121, the rotating seat 130 can stably rotate around the rotating shaft 120 and can be locked at a specific angular position to prevent the photovoltaic blade 200 from accidentally rotating under the influence of external environmental factors (such as wind force). In this way, the photovoltaic assembly is more stable and safe whether it is in use or folded for storage.
[0045] In some embodiments, the radius between the fixed seat 110 and the at least one rotating seat 130 gradually decreases along the folding direction of the photovoltaic blade 200 (such as the direction indicated by C in the figure), that is, any two adjacent parts (i.e., between the fixed seat 110 and the rotating seat 130, or between two rotating seats 130) of the fixed seat 110 and the at least one rotating seat 130 have a radius difference, and the radius difference is greater than or equal to the thickness of the photovoltaic blade 200. Figure 3
[0046] In actual application, the radius between the fixed seat 110 and the rotating seat 130, or between two rotating seats 130, gradually decreases along the folding direction of the photovoltaic blade 200, so that the space occupied by each layer gradually decreases as the folding progresses, so that the photovoltaic blade 200 can be tightly stacked together after folding, thereby helping to reduce the overall volume after folding. Further, the radius difference between the fixed seat 110 and the rotating seat 130, or between two rotating seats 130, is greater than or equal to the thickness of the photovoltaic blade 200, so that the problem of incomplete folding or irregular stacking due to thickness can be avoided, thereby ensuring that the photovoltaic blade 200 can be smoothly stacked together when folding.
[0047] In the above embodiment, the radius difference is in the range of 10mm to 100mm.
[0048] As shown in Figure 1 and Figure 5 In some embodiments, the photovoltaic assembly further comprises a hinge 300. Specifically, the photovoltaic blade 200 and the base 100 are rotationally connected through the hinge 300. By introducing the hinge 300, the photovoltaic blade 200 can be easily rotated, thereby realizing the functions of folding and unfolding, not only improving the portability of the photovoltaic assembly, but also facilitating the user to adjust the angle of the photovoltaic blade 200 as needed.
[0049] In actual application, the hinge 300 is a mature connecting component with the advantages of simple structure, easy installation and maintenance, etc.
[0050] It can be understood that the hinge 300 is not limited in structure and type, and any known hinge structure can be selected. For example, the hinge 300 can be a spring hinge, a bearing hinge, a multi-functional hinge, or a square hinge.
[0051] In some embodiments, the hinge 300 includes a lower hinge 310, an upper hinge 320, and a connecting member 330. Specifically, the lower hinge 310 is provided with a first through hole 311; the upper hinge 320 is connected to the lower hinge 310 and is provided with a second through hole 321. The base 100 is provided with a first mounting hole 140 coaxial with the first through hole 311; the photovoltaic blade 200 is provided with a second mounting hole 210 coaxial with the second through hole 321. The connecting member 330 is at least two, one of the at least two connecting members 330 is arranged in the first through hole 311 and the first mounting hole 140 to connect the base 100 and the lower hinge 310, and the other is arranged in the second mounting hole 210 and the second through hole 321 to connect the photovoltaic blade 200 and the upper hinge 320.
[0052] It can be understood that the connecting member 330 is not limited in structure and type, and any known connecting structure can be selected. For example, the connecting member 330 can be a screw, a rivet, a pin, or a bolt.
[0053] In some embodiments, the base 100 is provided with a plurality of mounting orientation portions 150 for mounting the photovoltaic blade 200.
[0054] In actual application, by providing a plurality of standardized mounting orientation portions 150 on the base, a clear position is provided for the installation of the photovoltaic blade 200, which not only eliminates the need for complex measurement and positioning work, but also reduces errors and omissions, thereby making the photovoltaic module easier to install and maintain, and ensuring the stability and safety of the photovoltaic module.
[0055] As a specific embodiment of the above embodiment, in some embodiments, the photovoltaic module includes eight photovoltaic blades 200.
[0056] Specifically, the base 100 includes a fixed seat 110, a rotating shaft 120, and a rotating seat 130; the fixed seat 110 and the rotating seat 130 have an octagonal cross section, i.e., eight mounting orientation portions 150; the rotating seat 130 is arranged below the fixed seat 110, and the radius of the rotating seat 130 is smaller than the radius of the fixed seat 110. The eight photovoltaic blades 200 are arranged in four groups on the fixed seat 110 and the rotating seat 130, respectively, and the photovoltaic blades 200 can be folded downward. Each group of photovoltaic blades 200 is uniformly distributed along the circumferential direction of the fixed seat 110 and the rotating seat 130, respectively.
[0057] In the above embodiment, the rotating base 130 can rotate from 0° to 45° under the drive of an external power source. During use, rotating to 45° ensures that the eight photovoltaic blades 200 do not obstruct each other. When folded and stored, the rotating base 130 keeps the photovoltaic blades 200 on it aligned with those on the fixed base 110. This significantly reduces the space occupied by the photovoltaic module, making it easier to carry and store.
[0058] like Figure 8 As shown, in some embodiments, the photovoltaic blade 200 includes, from top to bottom, a front encapsulation plate 220, an upper encapsulation film 230, a battery layer 240, a lower encapsulation film 250, and an encapsulation backplate 260.
[0059] Specifically, the front packaging plate 220 and the back packaging plate 260 are flexible packaging plates, and their materials are selected from one of the following polymer materials: PET (Polyethylene Terephthalate), CPC (Coating-PET-Coating), HPC (High Performance Composite), glass fiber prepreg, and carbon fiber prepreg.
[0060] For example, the thickness of the front package 220 and the back package 260 is in the range of 0.3 mm to 0.6 mm, and the transmittance of the front package 220 needs to be greater than 90%.
[0061] The upper encapsulation film 230 and the lower encapsulation film 250 are made of one of the following materials: EVA (Ethylene-Vinyl Acetate), POE (Polyolefin Elastomer), EPE (EVA / POE / EVA co-extrusion), PVB (Polyvinyl Butyral), and TPU (Thermoplastic polyurethanes), with a thickness in the range of 0.2 mm to 0.55 mm.
[0062] The battery layer 240 is one of an IBC (Interdigitated Back Contact), a TOPCON (Tunnel Oxide Passivated Contact), a TBC (TOPCon Back Contact, also known as POLO-IBC, Tunnel Oxide Passivated Contact Back Contact Cell), a PERC (Passivated Emitter and Rear Cell), and a perovskite solar cell.
[0063] In some embodiments, the present application also provides a photovoltaic system having the photovoltaic module provided by any one of the above embodiments. Thus, the photovoltaic system has all the beneficial effects of any one of the above embodiments, which are not repeated here.
[0064] It should be noted that in the claims, the specification and the drawings of the present application, the term "a plurality" means two or more, unless otherwise expressly specified and limited by the context, the terms "upper", "lower", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and make the description process more simple and convenient, and therefore these descriptions cannot be understood as limiting the application described; the terms "connection", "installation", "fixation" and the like should be understood in a broad sense, for example, "connection" can be a fixed connection between objects, or a detachable connection between objects, or an integral connection; can be a direct connection between objects, or an indirect connection between objects through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances of the above data.
[0065] In the claims, the specification and the drawings of the present application, the description of the terms "one embodiment", "some embodiments", "a specific embodiment" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the claims, the specification and the drawings of the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0066] The above merely provides preferred embodiments of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the principles and technical scope of the present application shall fall into the scope of the present application.
Claims
1. A photovoltaic module, characterized by, include: Base; Multiple photovoltaic blades are arranged in at least two layers at different heights on the base; the photovoltaic blades in each layer are evenly distributed along the circumference of the base, and the photovoltaic blades in any two layers are staggered. The photovoltaic blades and the base are rotatably connected and can be folded relative to the base in the hierarchical direction of the photovoltaic blades.
2. The photovoltaic module of claim 1, wherein, The base includes: Fixed base; The rotating shaft is connected to the fixed base; At least one rotating base is rotatably connected to the rotating shaft and is capable of rotating about the rotating shaft; At least two layers of photovoltaic blades are respectively disposed on the fixed base and at least one of the rotating bases.
3. The photovoltaic module of claim 2, wherein, The rotating shaft is provided with an external gear ring; the inner side of the rotating seat is provided with an internal gear ring, and the internal gear ring and the external gear ring mesh with each other.
4. The photovoltaic module of claim 2, wherein, Along the folding direction of the photovoltaic blade, the radii of the fixed seat and at least one of the rotating seats gradually decrease, and the radius difference between any two adjacent portions of the fixed seat and at least one of the rotating seats is greater than or equal to the thickness of the photovoltaic blade.
5. The photovoltaic module according to any of claims 1 to 4, characterized in that, It also includes hinges; the photovoltaic blades are rotatably connected to the base via the hinges.
6. The photovoltaic module of claim 5, wherein, The hinge includes: a lower hinge, an upper hinge, and a connector; The lower hinge is provided with a first through hole; The upper hinge and the lower hinge are connected, and the upper hinge is provided with a second through hole; The base is provided with a first mounting hole, and the first mounting hole and the first through hole are coaxial; The photovoltaic blade is provided with a second mounting hole, and the second mounting hole and the second through hole are coaxial; There are at least two connectors, one of which passes through the first mounting hole and the first through hole to connect the base and the lower hinge; the other of which passes through the second mounting hole and the second through hole to connect the photovoltaic blade and the upper hinge.
7. The photovoltaic module of claim 6, wherein, The hinge includes one of spring hinges, bearing hinges, and square hinges.
8. The photovoltaic module according to any of claims 1 to 4, characterized in that, The base is provided with multiple mounting positions, which are used to mount the photovoltaic blades.
9. The photovoltaic module according to any of claims 1 to 4, characterized in that, The photovoltaic blade includes, from top to bottom, a front encapsulation plate, an upper encapsulation film, a battery layer, a lower encapsulation film, and an encapsulation backplate.
10. A photovoltaic system characterized by, Includes photovoltaic modules as described in any one of claims 1 to 9.