Lightweight flexible photovoltaic module

Abstract

The utility model belongs to the field of photovoltaic technology, and relates to a light flexible photovoltaic assembly, which comprises a photovoltaic main body and a plurality of connecting assemblies, the bottom of the photovoltaic main body is provided with a plurality of assembling grooves arranged in an array mode, and the connecting assemblies are correspondingly arranged in the assembling grooves one by one; in the connecting assembly, a waterproof damping block comprises a disc-shaped body and a cylinder which are integrated, the cylinder is formed by extending from the center of the lower end face of the disc box body, the upper end face of the disc-shaped body is connected with the lower surface of the pasting disc, the outer ring face of the cylinder is concaved inwards to form an arc-shaped water guiding groove, and a sealing plug is connected to the lower end face of the cylinder in a sealed mode. The connecting structure is located below the sealing plug and used for connecting the connecting assembly to an external structure. The light flexible photovoltaic module can solve the problem that rainwater is easy to permeate into an external structure along a connecting assembly after the light flexible photovoltaic module is assembled in the prior art.

Description

TECHNICAL FIELD

[0001] The utility model belongs to photovoltaic technical field, concretely speaking, it is a kind of lightweight flexible photovoltaic module. BACKGROUND

[0002] Photovoltaic module is also called solar cell module, in today's society, with the increasing demand for clean energy in the world, solar photovoltaic power generation technology is increasingly watched, become one of the key areas of sustainable energy development, the traditional photovoltaic module generally adopts rigid structure, this structure gradually exposes many limitations in practical application.The weight of its relatively heavy makes the installation process cumbersome and complex, requires professional installation equipment and a large amount of manpower, and has certain requirements for the bearing capacity of installation site, greatly limits its use in some special scenarios, therefore, lightweight flexible photovoltaic module enters our field of vision.

[0003] However, the existing lightweight flexible photovoltaic module solves the problem of weight and flexibility to a certain extent, but there are short boards in the aspects of waterproof, moisture-proof, dust-proof and physical damage-proof, rainwater can easily penetrate into the external structure along the connecting structure after assembly, causing damage to the external structure. UTILITY MODEL CONTENTS

[0004] To solve the above problems, the utility model provides a kind of lightweight flexible photovoltaic module to solve the problem that rainwater easily penetrates into the external structure along the connecting assembly after assembly in the prior art.

[0005] To achieve the above purpose, the utility model adopts the technical scheme that:

[0006] A kind of lightweight flexible photovoltaic module, including photovoltaic main body and several connecting assemblies, wherein the photovoltaic main body bottom is provided with several array type setting assembly slots, the connecting assembly is installed in assembly slot one by one;

[0007] The connecting assembly includes a paste disc, a waterproof damping block, a sealing plug and a connecting structure, the waterproof damping block includes an integral disc body and a cylinder, the cylinder is formed by extending from the center position of the lower end face of the disc box, the upper end face of the disc body is connected with the lower surface of the paste disc, the outer ring surface of the cylinder is concave to form an arc water guide groove, the sealing plug is closed and connected to the lower end face of the cylinder, and the connecting structure is located below the sealing plug, which is used to connect the connecting assembly to the external structure.

[0008] As preferred, the lower end face of the disc body is provided with a ring-shaped water guide petal, the water guide petal is in a horn shape, the upper end of the water guide petal is a converging end, and the lower end is an open end, and the upper end face of the water guide petal is waterproofly connected with the lower end face of the disc body.

[0009] As preferred, the water guide petal and the outer ring surface of the cylinder form a spacing.

[0010] Preferably, a water-blocking strip is arranged at the outer periphery of the upper end of the sealing plug.

[0011] Preferably, the sealing plug is in an inverted conical frustum structure.

[0012] Preferably, the connecting structure comprises a bolt and a nut, wherein the bolt is connected to the lower end of the sealing plug, and the nut is threadedly connected to the bolt.

[0013] Preferably, a waterproof ring is arranged at the upper end of the bolt.

[0014] Preferably, the edge of the photovoltaic body is wrapped with a silicone edge frame, the photovoltaic body comprises a back plate layer assembled at the periphery of the silicone edge frame, a lightweight flexible solar cell sheet is arranged above the back plate layer, the lightweight flexible solar cell sheets are connected by a flexible conductive material, a transparent protective layer is arranged above the lightweight flexible solar cell sheets, and a plurality of assembly grooves are formed in the bottom of the back plate layer.

[0015] Preferably, a junction box is arranged at the top of the silicone edge frame, and a junction head is connected to one side of the junction box, and a standard USB or DC output interface is reserved on one side of the junction head.

[0016] Preferably, the transparent protective layer is made of a fluoroplastic film layer, the thickness of the transparent protective layer is not more than 0.2 mm, the surface hardness of the transparent protective layer is not less than 3H, and the light transmittance of the transparent protective layer is not less than 90%.

[0017] The back plate layer is made of a waterproof and moisture-proof polyimide material.

[0018] The beneficial effects of the present application are as follows:

[0019] 1. The connecting assembly is installed, and the waterproof damping block plays multiple roles, on the one hand, it has certain buffering performance, which can reduce the influence of external vibration on the photovoltaic body; on the other hand, the arc-shaped water guide groove of the outer wall can guide the direction of rainwater and other water flow, avoid water accumulation, and the water guide valve further assists water guide, so that the water flow is guided before entering the arc-shaped water guide groove, the sealing plug effectively prevents water from penetrating from the bottom to the inside of the structure connected outside, and the waterproof performance is enhanced.

[0020] 2. The transparent protective layer can effectively block the scratching and impact of foreign matters such as sand, branches, stones and the like on the internal lightweight flexible solar cell sheet array, avoid physical damage of the lightweight flexible solar cell sheet, and the back plate layer is tightly attached to the lower layer of the lightweight flexible solar cell sheet, thereby building a solid moisture-proof line for the entire photovoltaic body. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 Figure 1 is a perspective view of the light-weight flexible photovoltaic module of the present application;

[0022] Figure 2 Figure 2 is a bottom view of the light-weight flexible photovoltaic module of the present application;

[0023] Figure 3 Figure 3 is an expanded view of the light-weight flexible photovoltaic module of the present application;

[0024] Figure 4 Figure 4 is a bottom expanded view of the light-weight flexible photovoltaic module of the present application;

[0025] Figure 5 Figure 5 is a partial cross-sectional view of the connecting assembly of the present application. Figure 2 Figure 6 is a partial cross-sectional view of the connecting assembly of the present application.

[0026] In the drawings:

[0027] 1, photovoltaic body; 101, transparent protective layer; 102, light-weight flexible solar cell piece; 103, backboard layer; 104, flexible conductive material; 105, assembly groove; 2, silicone edge covering frame; 3, positioning hole; 4, junction box; 5, terminal head; 6, connecting assembly; 601, adhesive disc; 602, waterproof damping block; 603, water guide petal; 604, sealing plug; 605, water blocking strip; 606, bolt; 607, waterproof ring; 608, nut. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the present application more clear and understandable, the present application will be further described in detail below with reference to specific embodiments. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present application.

[0029] As shown in the accompanying drawings: Figure 1 , attached Figure 2 , attached Figure 3 , attached Figure 4 , attached Figure 5 , attached

[0030] Embodiment one: the present application provides a light-weight flexible photovoltaic module, comprising:

[0031] The photovoltaic body 1 has a silicone edge covering frame 2 wrapped around the edge thereof;

[0032] The photovoltaic body 1 includes a backboard layer 103 assembled around the periphery of the silicone edge covering frame 2, a light-weight flexible solar cell piece 102 laid above the backboard layer 103, a flexible conductive material 104 connecting between the light-weight flexible solar cell pieces 102, a transparent protective layer 101 laid above the light-weight flexible solar cell pieces 102, and a plurality of assembly grooves 105 formed at the bottom of the backboard layer 103.

[0033] The junction box 4 is installed on the top of the silica rubber edge frame 2.

[0034] The connecting assembly 6 is installed inside the assembly groove 105.

[0035] The connecting assembly 6 comprises a sticking disc 601 connected with the assembly groove 105, the bottom of the sticking disc 601 is connected with a waterproof damping block 602, the outer wall of the waterproof damping block 602 has an arc-shaped water guide groove, the waterproof damping block 602 on the outer periphery of the arc-shaped water guide groove is installed with a water guide petal 603, the bottom of the waterproof damping block 602 is installed with a sealing plug 604, and the bottom of the sealing plug 604 is connected with a bolt 606.

[0036] As known from the above, when the photovoltaic device works, the lightweight flexible solar cell sheet 102 fully absorbs solar energy under the protection of the transparent protective layer 101 and converts the solar energy into electric energy, the electric energy is transmitted through the flexible conductive material 104, collected and then connected and managed in the junction box 4 to realize power transmission with external equipment.

[0037] The silica rubber edge frame 2 tightly wraps the edge of the photovoltaic main body 1, plays a sealing and protection role, prevents external water vapor, dust and the like from invading, and the back plate layer 103 provides support for the entire photovoltaic main body 1, and the assembly groove 105 formed at the bottom is used for installing the connecting assembly 6.

[0038] As shown in the accompanying drawings: Figure 5

[0039] Specifically, the connecting assembly 6 comprises the sticking disc 601, the waterproof damping block 602, the sealing plug 604 and a connecting structure, the waterproof damping block 602 comprises an integral disc-shaped body and a cylindrical body, the cylindrical body is formed by extending from the center position of the lower end face of the disc-shaped body, the upper end face of the disc-shaped body is connected with the lower surface of the sticking disc, the outer annular face of the cylindrical body is concave to form the arc-shaped water guide groove, the sealing plug 604 is closed and connected to the lower end face of the cylindrical body, and the connecting structure is located below the sealing plug 604, and the connecting structure is used for connecting the connecting assembly to an external structure.

[0040] The sticking disc 601 of the connecting assembly 6 is firmly connected inside the assembly groove 105 to provide an installation basis for the entire connecting assembly 6, and the waterproof damping block 602 plays multiple roles, on the one hand, it has certain buffering performance and can reduce the influence of external vibration on the photovoltaic main body 1, and on the other hand, the arc-shaped water guide groove on the outer wall of the waterproof damping block 602 can guide the direction of rainwater and the like, avoid water accumulation, the water guide petal 603 further assists water guide, the sealing plug 604 effectively prevents water from penetrating from the bottom to the inside of the externally connected structure, enhances the waterproof performance, and the bolt 606 is used for tightly connecting the photovoltaic device with other structures to ensure the stability of the entire photovoltaic device in the installation and use process.​

[0041] The connecting assembly 6 further comprises a water-blocking strip 605 installed on the periphery of the sealing plug 604, and the cross section of the sealing plug 604 is in the shape of an inverted cone.

[0042] The connecting assembly 6 further comprises a nut 608 rotatably installed on the periphery of the bolt 606, and the periphery of the bolt 606 above the nut 608 is sleeved with a waterproof ring 607.

[0043] The smallest diameter of the sealing plug 604 is the same as the diameter of the bolt 606, and the largest diameter of the sealing plug 604 is larger than the diameter of the bolt 606.

[0044] As can be seen from the above, after the sealing plug 604 in the shape of an inverted cone is inserted into the corresponding bolt hole on the external structure, the bolt hole is sealed by the sealing plug 604, and at the same time, the water on the outer ring of the sealing plug 604 is shielded and guided by the water-blocking strip 605, so as to avoid the penetration of water into the external structure through the through hole.

[0045] By sleeving the waterproof ring 607 on the periphery of the bolt 606 and rotatably assembling the nut 608 on the periphery of the bolt 606, the waterproof ring 607 is pushed upward by rotating the nut 608, and the through hole is also sealed, so that the device is more stable.

[0046] As shown in Figs. 1 and 2, Figure 1 and Figs. 3 and 4, Figure 2 the connecting assembly 6 is connected to the external structure through the bolt 606.

[0047] Specifically, regarding the above-mentioned junction box 4, one side of the junction box 4 is connected with a terminal 5, and one side of the terminal 5 is reserved with a standard USB or DC output interface.

[0048] As can be seen from the above, through the standard USB or DC output interface on the terminal 5, various common electrical equipment can be adapted, and direct power supply or charging is not required without additional adapter, so that the use of the device is more convenient.

[0049] As shown in Figs. 5 and 6, Figure 3 and Figs. 7 and 8, Figure 4 the terminal 5 is connected to the junction box 4.

[0050] Specifically, regarding the above-mentioned photovoltaic main body 1, the transparent protective layer 101 is made of a fluoroplastic film layer, the thickness of the transparent protective layer 101 is not more than 0.2 millimeters, the surface hardness thereof is not less than 3H, and the light transmittance thereof is not less than 90%.

[0051] The back plate layer 103 is made of a waterproof and moisture-proof polyimide material.

[0052] As can be seen from the above, the transparent protective layer 101 made of fluoroplastic film can effectively block foreign objects such as sand, branches, and stones from scratching and impacting the internal lightweight flexible solar cell array 102, avoiding physical damage to the lightweight flexible solar cell array 102, greatly ensuring the integrity of the lightweight flexible solar cell array 102, maintaining its normal power generation performance, and having excellent light transmission performance with a light transmittance of not less than 90%. This allows sunlight to pass through smoothly and reach the lower lightweight flexible solar cell array 102 almost unimpeded, ensuring that the lightweight flexible solar cell array 102 can fully absorb solar energy and then efficiently convert light energy into electrical energy. If the light transmittance is poor, the amount of light received by the lightweight flexible solar cell array 102 will be greatly reduced, seriously affecting the photoelectric conversion efficiency.

[0053] The backsheet layer 103, made of waterproof and moisture-proof polyimide material, is tightly bonded to the lower layer of the lightweight flexible solar cell 102, forming a robust moisture barrier for the entire photovoltaic module 1. In humid environments, whether it is outdoor rainwater, dew, or water vapor in high-humidity areas, it is difficult for it to penetrate into the area of ​​the lightweight flexible solar cell 102, effectively preventing short circuits caused by water vapor erosion and ensuring the electrical safety and stability of the module. It also plays a role in assisting in fixing the lightweight flexible solar cell 102, enhancing the overall structural strength of the module. Working in conjunction with the silicone frame 2, it ensures that the module can maintain a tight connection between the layers even under complex stress conditions such as bending and vibration, preventing the lightweight flexible solar cell 102 from shifting or loosening, and further guaranteeing the durability of the module.

[0054] As attached Figure 1 and attached Figure 2 As shown:

[0055] Example 2: This example is basically the same as the previous example, except that positioning holes 3 are provided at the four corners of the top of the silicone frame 2, and metal rings are fitted on the inner wall of the positioning holes 3.

[0056] As can be seen from the above, by opening the positioning holes 3 at the four corners of the top of the silicone frame 2, the pins can be used to connect with the external structure through the positioning holes 3 during use, thereby limiting the position of the device from the four corners of the silicone frame 2, making the device more stable. The metal ring on the inner wall of the positioning hole 3 can improve the overall strength of the silicone frame 2.

[0057] It should be noted that in the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more than two; The terms "upper", "lower", "left", "right", "inner", "outer", etc. Indicated by the orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance. At the same time, in the description of the present application, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; It can be mechanically connected, or it can be electrically connected; It can be directly connected, or it can be indirectly connected 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.

[0058] The above is only the preferred embodiment of the present application. For those skilled in the art, according to the technical content of the present application, many changes can be made in the specific implementation and application range, as long as these changes do not deviate from the concept of the present application, and all belong to the protection scope of the present patent.

Claims

1. A lightweight flexible photovoltaic module characterized by: The photovoltaic main body and a plurality of connecting assemblies are provided, wherein a plurality of assembly grooves are arranged in an array at the bottom of the photovoltaic main body, and the connecting assemblies are installed in the assembly grooves one by one. The connecting assembly comprises a sticking disc, a waterproof damping block, a sealing plug and a connecting structure, the waterproof damping block comprises an integral disc-shaped body and a cylinder, the cylinder is formed by extending from the center position of the lower end surface of the disc-shaped body, the upper end surface of the disc-shaped body is connected with the lower surface of the sticking disc, the outer ring surface of the cylinder is concave to form an arc-shaped water guide groove, the sealing plug is connected to the lower end surface of the cylinder, and the connecting structure is located below the sealing plug.

2. The lightweight flexible photovoltaic assembly of claim 1, wherein: The lower end surface of the disc-shaped body is provided with an annular water guide petal, the water guide petal is in a horn shape, the upper end of the water guide petal is a converging end, and the lower end is an open end, and the upper end surface of the water guide petal is waterproofly connected with the lower end surface of the disc-shaped body.

3. The lightweight flexible photovoltaic assembly of claim 2, wherein: The water guide petal is spaced from the outer ring surface of the cylinder.

4. The lightweight flexible photovoltaic assembly of claim 1, wherein: An annular water blocking strip is installed at the outer periphery of the upper end of the sealing plug.

5. The lightweight flexible photovoltaic assembly of claim 1, wherein: The sealing plug is in an inverted conical frustum shape.

6. The lightweight flexible photovoltaic assembly of claim 5, wherein: The connecting structure comprises a bolt and a nut, wherein the bolt is connected to the lower end of the sealing plug, and the nut is threadedly connected with the bolt.

7. The lightweight flexible photovoltaic assembly of claim 6, wherein: The upper end surface of the bolt is provided with a waterproof ring.

8. The lightweight flexible photovoltaic assembly of any of claims 1-7, wherein: The edge of the photovoltaic main body is wrapped with a silica gel wrapping frame, the photovoltaic main body comprises a back plate layer assembled at the periphery of the silica gel wrapping frame, a lightweight flexible solar cell sheet is laid above the back plate layer, the lightweight flexible solar cell sheets are connected through flexible conductive materials, a transparent protective layer is laid above the lightweight flexible solar cell sheets, and a plurality of assembly grooves are formed at the bottom of the back plate layer.

9. The lightweight flexible photovoltaic assembly of claim 8, wherein: A junction box is installed at the top of the silica gel wrapping frame, a junction head is connected to one side of the junction box, and a standard USB or DC output interface is reserved on one side of the junction head.

10. The lightweight flexible photovoltaic assembly of claim 8, wherein: The transparent protective layer is made of a fluoroplastic film layer, the thickness of the transparent protective layer is not more than 0.2 mm, the surface hardness thereof is not less than 3H, and the light transmittance thereof is not less than 90%; The back plate layer is made of waterproof and moisture-proof polyimide material.

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