Photovoltaic modules

Abstract

The present application discloses a photovoltaic module, including a photovoltaic frame for installing a photovoltaic laminate. The photovoltaic frame is a rectangular frame structure formed by two first frames arranged opposite to each other and two second frames arranged opposite to each other. The first frame does not have an A side, and the second frame has an A side. The A side has a cut-angle structure at both ends in the length direction, and a gap is formed between the cut-angle structure and the adjacent first frame. A glue storage tank is provided at the bottom of the A side, and the glue storage tank is connected to the cut-angle structure at both ends in the length direction. An assembly part is used to fill the gap and close the opening of the glue storage tank in the length direction. The photovoltaic module of the present application fills the gap formed between the cut-angle structure and the adjacent first frame by arranging an assembly part to improve the aesthetics of the photovoltaic module after assembly. At the same time, the opening of the glue storage tank in the length direction can be closed to prevent glue from overflowing from the cut-angle structure, affecting the sealing and durability of the photovoltaic module, and further improving the aesthetics.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic power generation, in particular to a photovoltaic module. Background Art

[0002] With the development of the photovoltaic industry, photovoltaic frames without A-side and full-screen photovoltaic modules have been developed on the market. That is, the top edge of the photovoltaic frame is removed so that the front of the entire photovoltaic laminate of the photovoltaic module is not covered by the photovoltaic frame. This solves the problem of dust accumulation on the surface of the photovoltaic laminate caused by the obstruction of the photovoltaic frame, reduces the cleaning frequency, and improves photoelectric conversion. However, the preparation process is relatively complicated, and it is difficult to be compatible with the traditional block installation method, and the preparation cost is high.

[0003] In order to reduce the difficulty and cost of preparation, an idea has been proposed in the prior art, that is, only the long frame or the short frame of the photovoltaic frame is set to a structure without A-side, which can not only avoid dust accumulation, but also be compatible with the traditional block installation method.

[0004] However, in the manufacturing process of photovoltaic frames, it is usually necessary to make a 45° bevel treatment on both ends of the long frame and the short frame for easy splicing. Therefore, there are also 45° bevels on both ends of the A side of the retained long frame or short frame, resulting in the overall appearance of the photovoltaic module being not beautiful after assembly. In addition, a glue storage tank is provided at the bottom of the A side, and there is a gap between the bevel and the adjacent frame, resulting in the glue easily overflowing from the glue storage tank at the bevel to the surface of the photovoltaic laminate during assembly, which not only affects the appearance, but may also have a negative impact on the sealing and durability of the photovoltaic module, and increase the cost of maintenance and repair. Utility Model Content

[0005] In order to solve at least one technical problem of the prior art, the utility model provides a photovoltaic assembly which will not have the problem of dust accumulation during use, will not have glue overflow during assembly and has a high aesthetic appearance after assembly.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A photovoltaic module, comprising:

[0008] A photovoltaic frame, used for installing a photovoltaic laminate, wherein the photovoltaic frame is a rectangular frame structure formed by two first frames arranged opposite to each other and two second frames arranged opposite to each other, wherein the first frame does not have an A side, and the second frame has an A side;

[0009] The A side has a cut-angle structure at both ends in the length direction, a gap is formed between the cut-angle structure and the adjacent first frame, and a glue storage groove is provided at the bottom of the A side, and the glue storage groove passes through the cut-angle structure at both ends in the length direction;

[0010] The assembly part is used to fill the gap and close the opening of the glue storage tank in the length direction.

[0011] In some embodiments, the assembly covers the top surface of the side edge adjacent to the first frame and is flush with the outer side wall of the side edge adjacent to the first frame.

[0012] In some embodiments, the assembly includes a main body and a connecting portion provided on the main body, and the connecting portion is plug-connected to the glue storage tank.

[0013] In some embodiments, in the height direction, the orthographic projection of the main body coincides with the orthographic projection of the notch.

[0014] In some embodiments, in the horizontal direction, a top surface contour line of an orthographic projection of the main body portion coincides with a top surface contour line of an orthographic projection of the corner cut structure.

[0015] In some embodiments, there is a gap between the connecting portion and the glue storage tank, and the connecting portion is fixed in the glue storage tank by glue.

[0016] In some embodiments, the connecting portion is a flat structure.

[0017] In some embodiments, the glue is silicone.

[0018] In some embodiments, the assembly is made of plastic.

[0019] In some embodiments, the assembly is the same color as the A side.

[0020] Due to the application of the above technical solution, the beneficial effects of the present application compared with the prior art are:

[0021] The photovoltaic module of the present application is provided with an assembly part to fill the gap formed between the cut corner structure and the adjacent first frame, so as to improve the aesthetics of the photovoltaic module after assembly. At the same time, the assembly part can close the opening of the glue storage tank in the length direction to prevent glue from overflowing from the cut corner structure, affecting the sealing and durability of the photovoltaic module, and further improving the aesthetics. In addition, the two first frames are set as a structure without A edges, and the two second frames are set as a structure with A edges, which can not only prevent dust from accumulating on the surface of the photovoltaic laminate, but also make the photovoltaic module compatible with the traditional block installation method, reducing the difficulty and cost of preparation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is a partial structural schematic diagram of a photovoltaic module in one embodiment of the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of an assembly part in an embodiment of the utility model;

[0025] Figure 3 It is a schematic cross-sectional structure diagram of the second frame in one embodiment of the utility model.

[0026] Description of reference numerals:

[0027] 1-side; 2-second frame; 21-main body; 22-extension part; 23-A side; 24-extension part; 25-glue storage tank; 3-installation slot; 4-assembly part; 41-main body; 42-connection part; 6-corner cutting structure; 20-photovoltaic laminate. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this application.

[0029] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0030] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0031] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0032] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0033] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0034] The photovoltaic modules provided in this application can be applied to photovoltaic buildings, or used to provide power for street lamps, signal lamps, etc., or used to provide power for communication equipment. This application does not specifically limit the application scenarios of photovoltaic modules.

[0035] See also Figures 1 to 3 The photovoltaic assembly of one embodiment of the present application includes a photovoltaic frame and an assembly part 4 for installing a photovoltaic laminate 20 .

[0036] Photovoltaic laminate 20 is one of the important components for photovoltaic modules, and is usually composed of multilayer materials, including solar cells, glass, backboard, EVA (ethylene vinyl acetate), etc. The main function of photovoltaic laminate 20 is to protect the solar cells from damage by the external environment, promote electrical connection between solar cells, and provide a stable support structure. The present application does not specifically limit the structure of photovoltaic laminate 20.

[0037] In an optional embodiment, the photovoltaic laminate 20 includes a double-coated float glass disposed on the front side, a back sheet disposed on the back side, and a crystalline silicon cell string encapsulated by an adhesive film between the double-coated float glass on the front side and the back sheet on the back side.

[0038] In another optional embodiment, the photovoltaic laminate 20 includes a double-coated float glass arranged on the front side, a double-coated float glass arranged on the back side, and a crystalline silicon cell string encapsulated by an adhesive film between the double-coated float glass on the front side and the double-coated float glass on the back side.

[0039] The photovoltaic frame is a rectangular frame structure formed by two first frames arranged opposite to each other and two second frames 2 arranged opposite to each other, wherein the first frame does not have an A side 23, and the second frame 2 has an A side 23. The photovoltaic assembly of the present application can prevent dust from accumulating on the surface of the photovoltaic laminate 20, and is compatible with the traditional pressing block installation method, thereby reducing the difficulty and cost of preparation.

[0040] In detail, the A side 23 has a corner cut structure 6 at both ends in the length direction, a gap is formed between the corner cut structure 6 and the adjacent first frame, and a glue storage groove 25 is provided at the bottom of the A side 23, and the glue storage groove 25 passes through the corner cut structure 6 at both ends in the length direction.

[0041] Please combine Figure 3 In some embodiments, the second frame 2 includes a main body 21, an extension portion 22, an A edge 23, and an extension portion 24 connected as one body. The extension portion 22 extends upward from the outer edge of the upper surface of the main body 21 and extends along the length direction of the main body 21. The extension portion 24 extends from the inner edge of the lower surface of the main body 21 toward the photovoltaic laminate 20 and extends along the length direction of the main body 21. The A edge 23 extends from the long extension edge of the extension portion 22 toward the photovoltaic laminate 20 and extends along the length direction of the main body 21. The main body 21, the extension portion 22, and the A edge 23 define a mounting groove 3 that engages with the edge of the photovoltaic laminate 20, and the edge of the photovoltaic laminate 20 is bonded in the mounting groove 3 by glue.

[0042] Among them, the upper surface of the edge of the photovoltaic laminate 20 is bonded to the bottom surface of the A edge 23 by glue, the side surface of the first edge of the photovoltaic laminate 20 is bonded to the inner side surface of the extension part 22 by glue, and the lower surface of the first edge of the photovoltaic laminate 20 is bonded to the upper surface of the main body 21 by glue.

[0043] The glue storage tank 25 is arranged on the inner surface of the A side 23 and is connected to the mounting groove 3. During the framing process of the photovoltaic laminate 20, when the glue in the mounting groove 3 is squeezed and partially flows toward the notch of the mounting groove 3, the glue storage tank 25 accommodates part of the glue to prevent the glue from further overflowing onto the glass surface of the photovoltaic laminate 20. In addition to forming the glue storage tank 25 on the inner surface of the A side 23, the glue storage tank 25 can also be formed on the upper surface of the main body 21. The glue storage tank 25 is a structure that is concave relative to the reference surface such as the inner surface of the A side 23 and the upper surface of the main body 21, and its specific shape is not limited to Figure 3 shown.

[0044] The cut-angle structure 6 on the A side 23 is an inclined surface, which gradually inclines from the extension portion 22 toward the other end of the photovoltaic laminate 20 along the length direction of the A side 23, and the angle between the inclined surface and the adjacent first frame is 45°. The present application does not specifically limit the inclination angle of the cut-angle structure 6.

[0045] In some embodiments, the first frame includes a body (not numbered) and a side 1 connected as one body. The side 1 extends upward from the outer edge of the upper surface of the body and extends along the length direction of the body. The body and the side 1 define a support position for supporting and limiting the second edge of the photovoltaic laminate 20.

[0046] The lower surface of the second edge of the photovoltaic laminate 20 is glued to the support position, and the side surface of the second edge of the photovoltaic laminate 20 is glued to the inner side of the side edge 1. The side edge 1 does not exceed the upper surface of the photovoltaic laminate 20.

[0047] Since the first frame does not have the A side 23, and the side 1 of the first frame does not exceed the upper surface of the photovoltaic laminate 20, the photovoltaic module will not form rainwater, dust, debris, etc. when used outdoors for a long time, and the front of the photovoltaic module can be kept clean for a long time, thereby improving the power generation and service life of the photovoltaic module. At the same time, the first frame will not block the photovoltaic laminate 20, thereby increasing the light receiving area of ​​the photovoltaic laminate 20 and improving the power generation of the photovoltaic module.

[0048] In some embodiments, the glue is silica gel, which has excellent heat resistance, weather resistance and chemical stability, thereby improving the assembly stability of the photovoltaic laminate 20 and the second frame 2 .

[0049] The assembly part 4 is used to fill the gap and close the opening of the glue storage tank 25 in the length direction, so as to improve the aesthetics of the assembled photovoltaic module, and at the same time prevent the glue from overflowing from the cut-off structure 6, which would affect the sealing and durability of the photovoltaic module, and further improve the aesthetics.

[0050] In some embodiments, in order to further improve the aesthetics, the color of the assembly part 4 is set to be the same color as the A edge 23 to improve the integrity of the assembly part 4 and the second frame 2.

[0051] In some embodiments, the assembly member 4 covers the top surface of the side edge 1 of the adjacent first frame and is flush with the outer side wall of the side edge 1 of the adjacent first frame.

[0052] In some embodiments, the assembly part 4 includes a main body 41 and a connecting part 42 disposed on the main body 41 , and the connecting part 42 is plug-connected to the glue storage tank 25 .

[0053] In some embodiments, in the height direction, the orthographic projection of the main body 41 coincides with the orthographic projection of the notch.

[0054] In some embodiments, in the horizontal direction, the top surface contour line of the orthographic projection of the main body 41 coincides with the top surface contour line of the orthographic projection of the corner cut structure 6 .

[0055] In some embodiments, there is a gap between the connection portion 42 and the glue storage tank 25, and the connection portion 42 is fixed in the glue storage tank 25 by glue. It is worth noting that the glue used to fix the connection portion 42 and the glue storage tank 25 can be the excess glue contained in the glue storage tank 25 mentioned above, which is used to fix the photovoltaic frame and the photovoltaic laminate 20. During assembly, the connection portion 42 of the assembly part 4 is inserted into the glue storage tank 25, and the position is adjusted so that the main body 41 fills the gap and engages with the corner cutting structure 6. The glue in the glue storage tank 25 is cured to fix the assembly part 4 on the A edge 23.

[0056] In some embodiments, the connecting portion 42 is a flat structure to increase the contact area between the connecting portion 42 and the glue, and improve the structural stability after the assembly part 4 and the A side 23 are assembled. Figure 2 shown.

[0057] Finally, it should be noted that the above are only preferred embodiments of the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A photovoltaic module, characterized in that: include: A photovoltaic frame, used for installing a photovoltaic laminate, wherein the photovoltaic frame is a rectangular frame structure formed by two first frames arranged opposite to each other and two second frames arranged opposite to each other, wherein the first frame does not have an A side, and the second frame has an A side; The A side has a cut-angle structure at both ends in the length direction, a gap is formed between the cut-angle structure and the adjacent first frame, and a glue storage groove is provided at the bottom of the A side, and the glue storage groove passes through the cut-angle structure at both ends in the length direction; The assembly part is used to fill the gap and close the opening of the glue storage tank in the length direction.

2. The photovoltaic module according to claim 1, characterized in that: The assembly member covers the top surface of the side edge adjacent to the first frame and is flush with the outer side wall of the side edge adjacent to the first frame.

3. The photovoltaic module according to claim 1 or 2, characterized in that: The assembly part comprises a main body and a connecting part arranged on the main body, and the connecting part is plug-connected with the glue storage tank.

4. The photovoltaic module according to claim 3, characterized in that: In the height direction, the orthographic projection of the main body coincides with the orthographic projection of the notch.

5. The photovoltaic module according to claim 3, characterized in that: In the horizontal direction, the top surface contour line of the orthographic projection of the main body portion coincides with the top surface contour line of the orthographic projection of the corner cutting structure.

6. The photovoltaic module according to claim 3, characterized in that: There is a gap between the connecting part and the glue storage tank, and the connecting part is fixed in the glue storage tank by glue.

7. The photovoltaic module according to claim 6, characterized in that: The connecting portion is in a flat structure.

8. The photovoltaic module according to claim 6, characterized in that: The glue is silica gel.

9. The photovoltaic module according to claim 1, characterized in that: The assembly part is made of plastic.

10. The photovoltaic module according to claim 1, characterized in that: The assembly part has the same color as the A side.

Images