Photovoltaic module frame structure and photovoltaic module

Abstract

The utility model is applicable to the field of photovoltaic technology, and provides a photovoltaic module frame structure and a photovoltaic module, the photovoltaic module frame structure comprises a long frame, a short frame and a corner connector, the long frame is provided with a first installation notch for embedding a long edge of a laminated piece, the short frame is provided with a second installation notch for embedding a short edge of the laminated piece, and the corner connector is provided with a second installation notch for embedding a short edge of the laminated piece. The adjacent long frame and short frame are connected through a corner connector, the length of the long frame is smaller than that of the long side of the laminated piece, and / or the length of the short frame is smaller than that of the short side of the laminated piece, so that a drainage channel is formed between the adjacent long frame and short frame. Through the arrangement, the long frame and the short frame are connected to form the assembly frame, so that drainage channels are formed at the four corners of the laminated piece and the assembly frame, a tension interface between the laminated piece and the edge of the A surface of the frame is damaged, rainwater and dust are discharged, water and dust cannot be accumulated, and the influence on the conversion efficiency of the photovoltaic assembly is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaic equipment, and particularly relates to a frame structure of a photovoltaic module and a photovoltaic module. Background Art

[0002] A photovoltaic module is composed of high-efficiency crystalline silicon solar cells, ultra-white cloth-textured tempered glass, EVA, a transparent TPT backplane, and an aluminum alloy frame. The encapsulation can prevent the battery electrodes and interconnections from being corroded, and also prevent the battery from being broken, facilitating outdoor installation and improving the service life and reliability of the photovoltaic module.

[0003] Existing photovoltaic modules mainly include two types: A-side frame components and non-A-side frame components. Among them, the mechanical load performance of non-A-side frame components is relatively poor, and the lamination is prone to break away from the frame. The A-side frame components can well solve the above problems. However, there is a tension interface between the lamination and the A-side edge of the frame in the A-side frame components, which is prone to water accumulation or dust accumulation, affecting the photoelectric conversion efficiency of the photovoltaic module. Summary of the Utility Model

[0004] An embodiment of the utility model provides a frame structure of a photovoltaic module, aiming to solve the problem that the frame of the existing photovoltaic module is prone to water accumulation or dust accumulation, thereby reducing the photoelectric conversion efficiency.

[0005] The embodiment of the utility model is implemented as follows. A frame structure of a photovoltaic module includes:

[0006] A long frame, where the long frame is provided with a first installation slot for the long side of the lamination to be embedded;

[0007] A short frame, where the short frame is provided with a second installation slot for the short side of the lamination to be embedded; and

[0008] Corner connectors, where the adjacent long frame and short frame are connected by the corner connectors;

[0009] The length of the long frame is less than the length of the long side of the lamination, and / or the length of the short frame is less than the length of the short side of the lamination, so as to form a drainage channel between the adjacent long frame and short frame.

[0010] Furthermore, the end of the long frame and / or the short frame is a right angle.

[0011] Furthermore, a first sealant is provided in both the first installation slot and the second installation slot.

[0012] Furthermore, both the long frame and the short frame are provided with cavities for the corner connectors to be inserted.

[0013] Furthermore, convex strips extending along the length direction of the cavity are formed on the upper and lower inner surfaces of the cavity, and the convex strips respectively abut against the upper and lower surfaces of the corner connector.

[0014] Further, the corner code has a number of weight-reducing holes.

[0015] Further, the corner code is provided with barbs protruding backward along the direction in which the corner code is inserted into the cavity.

[0016] Further, a sealing strip is provided at the position of the corner code corresponding to the laminate.

[0017] Further, the sealing strip has a cavity for wrapping the edge of the laminate, and the cavity is filled with a second sealant.

[0018] In a second aspect, the present application provides a photovoltaic module, including the photovoltaic module frame structure as described above.

[0019] The beneficial effect of the present application is that the photovoltaic module frame structure of the present application includes a long frame, a short frame and a corner code. The long frame is provided with a first installation notch for the long side of the laminate to be inserted, and the short frame is provided with a second installation notch for the short side of the laminate to be inserted. The adjacent long frame and short frame are connected by the corner code. The length of the long frame is less than the length of the long side of the laminate, and / or the length of the short frame is less than the length of the short side of the laminate, so as to form a drainage channel between the adjacent long frame and short frame. Through the above settings, the component frame is composed of the long frame and the short frame, so as to form a drainage channel at the four corners of the laminate and the component frame, destroying the tension interface at the edge of the A surface of the laminate and the frame, so as to discharge rainwater and dust, without causing water accumulation and dust accumulation, and reducing the impact on the conversion efficiency of the photovoltaic module. Description of the Drawings

[0020] Figure 1 is a schematic structural diagram of the assembly of the frame and the laminate of an embodiment of the photovoltaic module frame structure provided by the present application;

[0021] Figure 2 is Figure 1 the sectional view along A-A in

[0022] Figure 3 is Figure 1 the sectional view along C-C in

[0023] Figure 4 is Figure 1 the sectional view along B-B in

[0024] Figure 5 is a schematic structural diagram of the assembly of the frame and the corner code of an embodiment of the photovoltaic module frame structure provided by the present application;

[0025] Figure 6 is a schematic structural diagram of the corner code of an embodiment of the photovoltaic module frame structure provided by the present application. Detailed Embodiments

[0026] In order to make the objectives, technical solutions and advantages of the present utility model more clear and understandable, the present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model. In addition, it should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0027] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "left", "right", "horizontal", "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0028] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of the present utility model, "a plurality" means two or more, unless otherwise specifically defined.

[0029] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, an electrical connection, or a connection that can communicate with each other; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0031] The following disclosure provides many different embodiments or examples for implementing different structures of the present utility model. To simplify the disclosure of the present utility model, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present utility model. In addition, the present utility model may repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplification and clarity, and in itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present utility model provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0032] The photovoltaic module frame structure of the present application includes long frames, short frames and corner codes. The long frames are provided with first installation slots for the long sides of the laminates to be inserted, the short frames are provided with second installation slots for the short sides of the laminates to be inserted, and adjacent long frames and short frames are connected by corner codes. The length of the long frame is less than the length of the long side of the laminate, and / or the length of the short frame is less than the length of the short side of the laminate, so as to form a drainage channel between adjacent long frames and short frames. Through the above settings, the component frame is composed of long frames and short frames connected together, so as to form a drainage channel at the four corners of the laminate and the component frame, breaking the tension interface at the edge of the A surface of the laminate and the frame, so as to discharge rainwater and dust, without causing water accumulation and dust accumulation, and reducing the impact on the conversion efficiency of the photovoltaic module.

[0033] Embodiment 1

[0034] As Figures 1 to 4 shown, an embodiment of the present application provides a photovoltaic module frame structure, including:

[0035] A long frame 100, the long frame 100 is provided with a first installation slot 110 for the long side of the laminate 200 to be inserted;

[0036] A short frame 300, the short frame 300 is provided with a second installation slot 310 for the short side of the laminate 200 to be inserted; and

[0037] Corner code 400, the adjacent long side frame 100 and short side frame 300 are connected by the corner code 400;

[0038] The length of the long side frame 100 is less than the length of the long side of the laminate 200, and / or the length of the short side frame 300 is less than the length of the short side of the laminate 200, so as to form a drainage channel 700 between the adjacent long side frame 100 and short side frame 300.

[0039] During implementation, the frame of the photovoltaic module is used to enclose the laminate 200 to achieve the encapsulation of the laminate 200. The frame of the photovoltaic module is composed of a long side frame 100 and a short side frame 300. Exemplarily, taking the frame of the photovoltaic module as a quadrilateral, the frame includes two long side frames 100 and two short side frames 300. The two long side frames 100 are arranged opposite to each other, and the two short side frames 300 are also arranged opposite to each other. The frame is formed by the adjacent connection of the long side frame 100 and the short side frame 300.

[0040] The laminate 200 includes, but is not limited to, a transparent front plate, a glue film, a battery cell string group and a back plate, and is not limited. During implementation, the transparent front plate, the glue film, the battery cell string group and the back plate are laminated by a laminator to form the laminate 200.

[0041] In some possible embodiments, the adjacent long side frame 100 and short side frame 300 are connected by the corner code 400, so that the angle between the long side frame 100 and the short side frame 300 is a right angle or substantially a right angle.

[0042] The long side frame 100 is provided with a first installation notch 110, and the short side frame 300 is provided with a second installation notch 310. The first installation notch 110 and the second installation notch 310 are respectively used for the long side and short side of the laminate 200 to be embedded. That is to say, by limiting the laminate 200 through the first installation notch 110 and the second installation notch 310, the installation and fixation between the laminate 200 and the frame can be achieved.

[0043] In some embodiments, the length of the long side frame 100 is less than the length of the long side of the laminate 200, and the length of the short side frame 300 is equal to the length of the short side of the laminate 200. When the long side frame 100 and the short side frame 300 are connected by the corner code 400 and the laminate 200 is assembled, the long side frame 100 and the short side frame 300 do not directly contact to form an edge-sealed frame. That is to say, there will be a notch at one end or both ends of the long side frame 100. This notch can break the tension interface at the edge of the A surface of the laminate 200 and the frame. Water or dust falling on the surface of the laminate 200 can be discharged through the notch, and no dust accumulation or water accumulation will occur.

[0044] During implementation, the end of the long side frame 100 and / or the short side frame 300 is a right angle or other angles, preferably a right angle, and is not limited.

[0045] As a possible way, the length of the long frame 100 is equal to the length of the long side of the laminate 200, and the length of the short frame 300 is less than the length of the short side of the laminate 200. When the long frame 100 and the short frame 300 are connected by the corner code 400 and the laminate 200 is assembled, the long frame 100 and the short frame 300 do not directly contact to form an edge-sealed frame. That is to say, there will be gaps at one or both ends of the short frame 300. These gaps can break the tension interface at the edge of the A side of the laminate 200 and the frame, and water, dust, etc. falling on the surface of the laminate 200 can be discharged through the gaps, without causing dust accumulation or water accumulation.

[0046] As another possible way, the length of the long frame 100 is less than the length of the long side of the laminate 200, and at the same time, the length of the short frame 300 is less than the length of the short side of the laminate 200. When the long frame 100 and the short frame 300 are connected by the corner code 400 and the laminate 200 is assembled, the long frame 100 and the short frame 300 do not directly contact to form an edge-sealed frame. That is to say, there will be gaps at the connection of the long frame 100 and the short frame 300. These gaps can break the tension interface at the edge of the A side of the laminate 200 and the frame, and water, dust, etc. falling on the surface of the laminate 200 can be discharged through the gaps, without causing dust accumulation or water accumulation.

[0047] The photovoltaic module frame structure of the present application includes a long frame 100, a short frame 300 and a corner code 400. The long frame 100 is provided with a first installation notch 110 for the long side of the laminate 200 to be embedded, and the short frame 300 is provided with a second installation notch 310 for the short side of the laminate 200 to be embedded. The adjacent long frame 100 and short frame 300 are connected by the corner code 400. The length of the long frame 100 is less than the length of the long side of the laminate 200, and / or the length of the short frame 300 is less than the length of the short side of the laminate 200, so as to form a drainage channel 700 between the adjacent long frame 100 and short frame 300. Through the above settings, the component frame is composed of the long frame 100 and the short frame 300, so as to form a drainage channel 700 at the four corners of the laminate 200 and the component frame, break the tension interface at the edge of the A side of the laminate 200 and the frame, discharge rainwater and dust, without causing water accumulation or dust accumulation, and reduce the impact on the conversion efficiency of the photovoltaic module.

[0048] In some embodiments, a first sealant 500 is provided in both the first mounting notch 110 and the second mounting notch 310. During implementation, the side of the first mounting notch 110 and the second mounting notch 310 corresponding to the light-receiving surface of the laminate 200 is the frame A surface 140. When assembling the laminate 200 and the frame, first sealant 500 can be added into the first mounting notch 110 and the second mounting notch 310, and then the edge of the laminate 200 is inserted into the first mounting notch 110 and the second mounting notch 310. For example, by using a frame assembly machine, the glue grooves (the first mounting notch 110 and the second mounting notch 310) of four frames (two long frames 100 and two short frames 300) are aligned with the laminate 200, and then they are pressed together. During the pressing process, the first sealant 500 in the glue grooves overflows to the front and back of the laminate 200, filling and sealing the gaps between the laminate 200 and the frame, improving the sealing performance of the laminate 200, and achieving a better waterproof and dustproof effect.

[0049] Optionally, the first sealant 500 can be silicone, UV glue, a sealing strip 600, or other sticky sealants, without limitation.

[0050] In some alternative embodiments, both the long frame 100 and the short frame 300 are provided with cavities 120 for inserting corner codes 400. The corner code 400 includes a first part 410 and a second part 420, and the first part 410 and the second part 420 are perpendicular or substantially perpendicular to each other as a whole, as Figure 2 shown.

[0051] Optionally, the first part 410 can be connected to the long frame 100, and the second part 420 can be connected to the short frame 300. For example, the first part 410 can be inserted into the cavity 120 of the long frame 100 to complete the installation and connection of the corner code 400 and the long frame 100, and the second part 420 can be inserted into the cavity 120 of the short frame 300 to complete the installation and connection of the corner code 400 and the short frame 300, thereby realizing the connection between the long frame 100 and the short frame 300, and making the adjacent long frame 100 and short frame 300 perpendicular or substantially perpendicular to each other. The installation is convenient and simple, simplifies the installation process, and improves the assembly efficiency.

[0052] In some alternative embodiments, convex strips 130 extending along the length direction of the cavity 120 are formed on the upper and lower inner surfaces of the cavity 120. The convex strips 130 respectively abut against the upper and lower surfaces of the corner code 400, and the corner code 400 can be effectively clamped by the convex strips 130, making the installation more stable.

[0053] In some alternative embodiments, the corner bracket 400 has a number of weight-reducing holes 440. During implementation, the weight-reducing holes 440 can be blind holes or perforations. By providing the weight-reducing holes 440, the weight of the corner bracket 400 can be effectively reduced, thereby reducing the overall weight of the photovoltaic module, making installation more labor-saving and convenient. At the same time, the weight-reducing holes 440 can also reduce the material used for the corner bracket 400 and lower the cost.

[0054] In some alternative embodiments, the corner bracket 400 is provided with barb protrusions 430 formed backward along the direction in which the corner bracket 400 is inserted into the cavity 120, which can effectively improve the installation stability after the corner bracket is inserted into the cavity 120.

[0055] In some alternative embodiments, a sealing strip 600 is provided at the position of the lamination 200 corresponding to the corner bracket 400. The sealing strip 600 is used to wrap the corners of the lamination 200. Optionally, the sealing strip 600 has a cavity for wrapping the edge of the lamination 200, and a second sealant 610 is filled in the cavity. The second sealant 610 can refer to the above-mentioned first sealant 500 and will not be elaborated here. By adding the adhesive sealing strip 600 and the second sealant 610 at the position of the lamination 200 corresponding to the corner bracket 400, water vapor can be effectively prevented from invading the lamination 200, the overall sealing performance of the photovoltaic module can be improved, and thus the reliability of the photovoltaic module can be improved and the service life of the photovoltaic module can be extended.

[0056] Embodiment 2

[0057] In some alternative embodiments, the present application provides a photovoltaic module including the photovoltaic module frame structure as described above.

[0058] Those skilled in the art can clearly understand that for the convenience and brevity of description, the structure and implementation principle of the photovoltaic module described above can refer to the corresponding structure and implementation principle in the foregoing Embodiment 1 and will not be elaborated here.

[0059] The frame structure of the photovoltaic module of the present application includes a long frame 100, a short frame 300 and a corner connector 400. The long frame 100 is provided with a first installation notch 110 for the long side of the lamination member 200 to be embedded. The short frame 300 is provided with a second installation notch 310 for the short side of the lamination member 200 to be embedded. The adjacent long frame 100 and short frame 300 are connected by the corner connector 400. The length of the long frame 100 is less than the length of the long side of the lamination member 200, and / or the length of the short frame 300 is less than the length of the short side of the lamination member 200, so as to form a drainage channel 700 between the adjacent long frame 100 and short frame 300. Through the above settings, the component frame is composed of the connection of the long frame 100 and the short frame 300, so as to form a drainage channel 700 at the four corners of the lamination member 200 and the component frame, destroying the tension interface at the edge of the A surface of the lamination member 200 and the frame, so as to discharge rainwater and dust, without causing water accumulation and dust accumulation, and reducing the influence on the conversion efficiency of the photovoltaic module.

[0060] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A photovoltaic module frame structure, characterized in that: include: A long frame, wherein the long frame is provided with a first mounting notch for the long side of the laminate to be embedded; A short frame, wherein the short frame is provided with a second mounting notch for the short side of the laminate to be embedded; as well as Angle code, the adjacent long frame and the adjacent short frame are connected by the angle code; The length of the long frame is shorter than the length of the long side of the laminate, and / or the length of the short frame is shorter than the length of the short side of the laminate, so as to form a drainage channel between adjacent long frames and short frames.

2. The photovoltaic module frame structure according to claim 1, characterized in that: The ends of the long frame and / or the short frame are right angles.

3. The photovoltaic module frame structure according to claim 1, characterized in that: A first sealant is disposed in both the first installation slot and the second installation slot.

4. The photovoltaic module frame structure according to claim 1, characterized in that: The long frame and the short frame are both provided with cavities for inserting the corner codes.

5. The photovoltaic module frame structure according to claim 4, characterized in that: The upper and lower inner surfaces of the cavity are formed with convex strips extending along the length direction of the cavity, and the convex strips are respectively pressed against the upper and lower surfaces of the angle code.

6. The photovoltaic module frame structure according to any one of claims 1 to 5, characterized in that: The corner bracket has a plurality of weight-reducing holes.

7. The photovoltaic module frame structure according to claim 4 or 5, characterized in that: The angle code is provided with a barb protrusion formed backward along the direction in which the angle code is inserted into the cavity.

8. The photovoltaic module frame structure according to claim 1, characterized in that: The laminate is provided with edge-sealing strips at locations corresponding to the corner codes.

9. The photovoltaic module frame structure according to claim 8, characterized in that: The edge sealing strip has a cavity that wraps around the edge of the laminate, and the cavity is filled with a second sealant.

10. A photovoltaic module, characterized in that: It comprises a photovoltaic assembly frame structure as claimed in any one of claims 1 to 9.

Images