Photovoltaic module with front anti-water accumulation frame

Abstract

The present application discloses a photovoltaic module with a front anti-water accumulation frame, including a rectangular frame and a laminate, wherein the rectangular frame includes at least two oppositely arranged non-A-face frames, and the non-A-face frames include: a hollow body, the upper surface of which is provided with a tooth structure, and a rubber storage portion that is recessed inwardly is provided near the outer edge; an extension wall that extends upward from the outer edge of the upper surface of the hollow body and extends along the length direction of the hollow body, and the inner surface of the extension wall is provided with an inner concave portion that is recessed inwardly and extends along the length direction of the hollow body; the bottom surface of the edge of the laminate is bonded to the upper surface of the hollow body, and the side surface of the edge of the laminate is bonded to the inner surface of the extension wall; the side surface of the laminate is provided with a protruding portion that protrudes outwardly, and the shape of the protruding portion is adapted to the shape of the inner concave portion, and the top surface of the laminate is not lower than the top surface of the extension wall. The present application solves the problem of accumulation of debris such as rainwater and dust, and the connection stability between the frame and the laminate is high, which avoids the situation where the laminate falls off when the external load is large.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic power generation, in particular to a photovoltaic component with a front water accumulation prevention frame. Background Art

[0002] The frame of a traditional photovoltaic module has an A-side, which is the top surface of the frame. After the photovoltaic module is assembled, the A-side of the frame will be higher than the front of the laminate. When the module is used outdoors, impurities such as rainwater, dust, and dead leaves will accumulate on the inside of the A-side of the frame, blocking the surface of the laminate and affecting the power generation of the photovoltaic module.

[0003] To avoid the above problems, a solution without an A-side frame has been developed. For example, the Chinese patent application number 2020219626234, "A New Photovoltaic Module Frame", discloses a frame without an A-side, extending the side of the frame upward to cover the height of the laminate, and retaining the overflow groove function in the extended part and the bottom support part.

[0004] However, the conventional overflowing glue groove is designed at the bottom of the A surface to avoid uneven overflowing glue due to the difference in glue amount between the A surface and the laminate. In this patent, after the overflowing glue groove is set on the extension part and the bottom support part, most of the sealant will flow into the overflowing glue groove under its own gravity and flow, resulting in an increase in glue consumption and poor bonding effect.

[0005] Since the A side is removed, the laminate is completely protected from external loads by the sealant at the bottom and sides. Therefore, when the sealant is insufficient, the connection stability between the laminate and the frame is poor, increasing the risk of the laminate falling off. Utility Model Content

[0006] In order to solve at least one technical problem of the prior art, the utility model provides a photovoltaic module with a front anti-water accumulation frame, which will not have the problem of accumulation of rainwater, dust and other debris during use, and the connection between the frame and the laminate is highly stable, avoiding the laminate from falling off when the external load is large.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0008] A photovoltaic module with a front water accumulation prevention frame comprises a rectangular frame and a laminate bonded to the rectangular frame by a sealant, wherein the rectangular frame comprises at least two oppositely arranged A-free face frames, and the A-free face frames comprise:

[0009] A hollow body, wherein the upper surface of the hollow body is provided with a tooth structure, and an inwardly recessed glue storage portion is provided near the outer edge; and

[0010] An extension wall extends upward from the outer edge of the upper surface of the hollow body and extends along the length direction of the hollow body, and the inner surface of the extension wall is provided with an inwardly recessed inner concave portion and extends along the length direction of the hollow body;

[0011] The bottom surface of the edge of the laminate is bonded to the upper surface of the hollow body, and the side surface of the edge of the laminate is bonded to the inner surface of the extension wall;

[0012] The side surface of the laminate is provided with a convex portion protruding outward, the convex portion is matched with the shape of the inner concave portion, and the top surface of the laminate is not lower than the top surface of the extension wall.

[0013] In some embodiments, in the width direction of the hollow body, the depth of the glue storage portion gradually increases from away from the extension wall to closer to the extension wall.

[0014] In some embodiments, the upper surface of the hollow body includes a main surface and an inclined surface constituting the bottom surface of the glue storage portion;

[0015] The inclined surface extends from the main surface to the extension wall at an angle relative to the plane where the main surface is located.

[0016] In some embodiments, the angle between the inclined surface and the main surface is less than 90°.

[0017] In some embodiments, the tooth structure is disposed on the major surface.

[0018] In some embodiments, the tooth structure includes a plurality of top teeth extending along the length direction of the hollow body, and the tops of the top teeth are provided with rounded chamfers.

[0019] In some embodiments, the height of the top teeth is 0.5 mm to 2 mm, the bottom width of the top teeth is 1 mm to 3 mm, and the radius of the circular chamfer is 1 mm to 5 mm.

[0020] In some embodiments, the inner concave portion is a curved surface structure, and the bottom end of the inner concave portion extends along the curved surface direction to the glue storage portion.

[0021] In some embodiments, the hollow body is formed by connecting oppositely disposed inner and outer walls and oppositely disposed top and bottom walls, the extension wall extends upward from the top surface of the outer wall, and the outer surface of the extension wall is flush with the outer surface of the outer wall.

[0022] In some embodiments, in the width direction of the hollow body, one end of the top wall connected to the inner wall protrudes away from the outer wall to form a first suspended portion; one end of the bottom wall connected to the inner wall protrudes away from the outer wall to form a second suspended portion.

[0023] Due to the application of the above technical solution, the beneficial effects of the present application compared with the prior art are:

[0024] 1. By providing an inwardly recessed portion on the inner surface of the extended wall and matching it with the raised portion on the side of the laminate, the sealant is evenly distributed in the gap between the A-free frame and the laminate, thereby ensuring uniform use of the sealant and improving the sealing effect.

[0025] 2. By cooperating with the inner concave portion and the convex portion, the extended wall and the laminate part are partially overlapped, so that the extended wall plays an auxiliary fixing role for the laminate, thereby improving the structural stability of the laminate and the rectangular frame after assembly, and reducing the risk of the laminate falling off under external loads.

[0026] 3. By providing a tooth structure on the upper surface of the hollow body, the bonding area between the laminate and the hollow body is increased, the connection strength between the laminate and the hollow body is enhanced, and the structural stability is further improved.

[0027] 4. By setting the rectangular frame to have at least two oppositely arranged A-side-free frames, impurities such as rainwater, dust, and dead leaves can be prevented from accumulating on the surface of the laminate, thereby improving the power generation efficiency of the photovoltaic module. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] 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.

[0029] Figure 1 It is a schematic diagram of the structure after the laminate and the frame without A surface are assembled in one embodiment of the utility model;

[0030] Figure 2 It is a schematic diagram of the structure without the A-side frame in one embodiment of the utility model.

[0031] Description of reference numerals:

[0032] 1-hollow body; 11-inner wall; 12-outer wall; 13-top wall; 131-inclined surface; 132-main surface; 14-bottom wall; 15-first suspended portion; 16-second suspended portion; 2-extension wall; 3-inner recess; 4-tooth structure; 5-glue storage portion; 10-laminated part; 101-raised portion; 20-sealant; 30-no A-side frame. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution 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 the present application.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] See also Figure 1 and Figure 2 A photovoltaic module with a front water-proof frame according to an embodiment of the present application includes a rectangular frame and a laminate 10 bonded to the rectangular frame by a sealant 20 .

[0040] The rectangular frame includes at least two oppositely arranged non-A-surface frames 30. The non-A-surface frame 30 includes a hollow body 1 and an extension wall 2. A tooth structure 4 is provided on the upper surface of the hollow body 1, and an inwardly concave glue storage portion 5 is provided near the outer edge.

[0041] By setting the rectangular frame to have at least two oppositely arranged A-side-free frames 30, impurities such as rainwater, dust, and dead leaves are prevented from accumulating on the surface of the laminate 10, thereby improving the power generation efficiency of the photovoltaic module. At the same time, by providing a tooth structure 4 on the upper surface of the hollow body 1, the bonding area between the laminate 10 and the hollow body 1 is increased, the connection strength between the laminate 10 and the hollow body 1 is enhanced, and the structural stability is further improved.

[0042] In some embodiments, the hollow body 1 is formed by connecting an inner wall 11 and an outer wall 12 that are oppositely disposed, and a top wall 13 and a bottom wall 14 that are oppositely disposed. The extension wall 2 extends upward from the top surface of the outer wall 12, and the outer surface of the extension wall 2 is flush with the outer surface of the outer wall 12.

[0043] In the width direction of the hollow body 1, one end of the top wall 13 connected to the inner wall 11 protrudes away from the outer wall 12 to form a first suspended portion 15. One end of the bottom wall 14 connected to the inner wall 11 protrudes away from the outer wall 12 to form a second suspended portion 16. The second suspended portion 16 may be provided with a plurality of mounting holes (not shown), and the photovoltaic module is fixed to the bracket by passing a pressing block or bolts through the mounting holes.

[0044] It should be noted that the width direction of the hollow body 1 is as follows: Figure 2 As shown by the arrow a in the middle, the length direction is perpendicular to the width direction in the horizontal direction.

[0045] In some embodiments, in the width direction of the hollow body 1 , the depth of the glue storage portion 5 gradually increases from being away from the extension wall 2 to being close to the extension wall 2 .

[0046] Specifically, the upper surface of the hollow body 1 includes a main surface 132 and an inclined surface 131 constituting the bottom surface of the glue storage portion 5. The inclined surface 131 extends from the main surface 132 to the extension wall 2 at an angle relative to the plane where the main surface 132 is located. Preferably, the angle between the inclined surface 131 and the main surface 132 is less than 90°.

[0047] In some embodiments, the tooth structure 4 is disposed on the major surface 132 .

[0048] Specifically, the tooth structure 4 includes a plurality of top teeth extending along the length direction of the hollow body 1, and the top of the top teeth is provided with a circular chamfer. Preferably, the height of the top teeth is 0.5mm to 2mm, the bottom width of the top teeth is 1mm to 3mm, and the radius of the circular chamfer is 1mm to 5mm.

[0049] The extension wall 2 extends upward from the outer edge of the upper surface of the hollow body 1 and extends along the length direction of the hollow body 1 . The inner surface of the extension wall 2 is provided with an inwardly recessed portion 3 and extends along the length direction of the hollow body 1 .

[0050] By providing an inwardly recessed portion 3 on the inner surface of the extended wall 2 and matching it with the raised portion 101 on the side of the laminate 10, the sealant 20 is evenly distributed in the gap between the A-free frame 30 and the laminate 10 to ensure uniform use of the sealant 20 and thereby improve the sealing effect.

[0051] In some embodiments, the inner concave portion 3 is a curved surface structure, and the bottom end of the inner concave portion 3 extends along the curved surface direction to the glue storage portion 5 .

[0052] The bottom surface of the edge of the laminate 10 is bonded to the upper surface of the hollow body 1, and the side surface of the edge of the laminate 10 is bonded to the inner surface of the extension wall 2. The side surface of the laminate 10 is provided with a protruding portion 101 protruding outward, and the protruding portion 101 is adapted to the shape of the inner recess 3, and the top surface of the laminate 10 is not lower than the top surface of the extension wall 2. Preferably, the top surface of the laminate 10 is flush with the top surface of the extension wall 2.

[0053] By cooperating with the inner recess 3 and the raised portion 101, the extended wall 2 and the laminate 10 are partially overlapped, so that the extended wall 2 plays an auxiliary fixing role for the laminate 10, thereby improving the structural stability of the laminate 10 after assembly with the rectangular frame and reducing the risk of the laminate 10 falling off under external loads.

[0054] In some embodiments, the laminate 10 encapsulates a PERC cell, a TOPCon cell, or a HJT cell.

[0055] 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 with a front anti-water accumulation frame, comprising a rectangular frame and a laminate bonded to the rectangular frame by a sealant, characterized in that: The rectangular frame includes at least two oppositely disposed A-free frames, and the A-free frames include: A hollow body, wherein the upper surface of the hollow body is provided with a tooth structure, and an inwardly recessed glue storage portion is provided near the outer edge; and An extension wall extends upward from the outer edge of the upper surface of the hollow body and extends along the length direction of the hollow body, and the inner surface of the extension wall is provided with an inwardly recessed inner concave portion and extends along the length direction of the hollow body; The bottom surface of the edge of the laminate is bonded to the upper surface of the hollow body, and the side surface of the edge of the laminate is bonded to the inner surface of the extension wall; The side surface of the laminate is provided with a convex portion protruding outward, the convex portion is matched with the shape of the inner concave portion, and the top surface of the laminate is not lower than the top surface of the extension wall.

2. The photovoltaic module with a front water-proof frame according to claim 1, characterized in that: In the width direction of the hollow body, the depth of the glue storage portion gradually increases from being away from the extension wall to being close to the extension wall.

3. The photovoltaic module with a front water-proof frame according to claim 2, characterized in that: The upper surface of the hollow body includes a main surface and an inclined surface constituting the bottom surface of the glue storage portion; The inclined surface extends from the main surface to the extension wall at an angle relative to the plane where the main surface is located.

4. The photovoltaic module with a front water-proof frame according to claim 3, characterized in that: The included angle between the inclined surface and the main surface is less than 90°.

5. The photovoltaic module with a front water-proof frame according to claim 3, characterized in that: The tooth structure is disposed on the major surface.

6. The photovoltaic module with a front water-proof frame according to claim 5, characterized in that: The tooth structure comprises a plurality of top teeth extending along the length direction of the hollow body, and the tops of the top teeth are provided with rounded chamfers.

7. The photovoltaic module with a front water-proof frame according to claim 6, characterized in that: The height of the top teeth is 0.5 mm to 2 mm, the bottom width of the top teeth is 1 mm to 3 mm, and the radius of the circular chamfer is 1 mm to 5 mm.

8. The photovoltaic module with a front water-proof frame according to claim 1, characterized in that: The inner concave portion is in a curved surface structure, and the bottom end of the inner concave portion extends along the curved surface direction to the glue storage portion.

9. The photovoltaic module with a front water accumulation prevention frame according to any one of claims 1 to 8, characterized in that: The hollow body is formed by connecting oppositely disposed inner and outer walls, and oppositely disposed top and bottom walls. The extension wall extends upward from the top surface of the outer wall, and the outer surface of the extension wall is flush with the outer surface of the outer wall.

10. The photovoltaic module with a front water-proof frame according to claim 9, characterized in that: In the width direction of the hollow body, one end of the top wall connected to the inner wall protrudes away from the outer wall to form a first suspended portion; one end of the bottom wall connected to the inner wall protrudes away from the outer wall to form a second suspended portion.

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