Fastener of photovoltaic module and photovoltaic module

Abstract

The utility model discloses a fastener of a photovoltaic assembly and the photovoltaic assembly, and the fastener of the photovoltaic assembly comprises a top plate which is used for compressing the top of a frame of the photovoltaic assembly and the top of a laminated member; the bottom plate and the top plate are oppositely arranged, and the bottom plate is used for pressing the bottom of the frame; and the connecting plate is connected between the top plate and the bottom plate in a bending manner and is used for pressing the side part of the frame. Therefore, the fastener of the photovoltaic module can prevent the laminated piece from moving relative to the frame, and can also prevent the laminated piece from being separated from the frame.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic technology, and in particular to a fastener for a photovoltaic module and a photovoltaic module. Background Technology

[0002] Specifically, in traditional photovoltaic modules, a portion of the frame is higher than the power generation panel (also known as the laminate). After the photovoltaic module is exposed to wind, sun, and rain, water will accumulate on the part above the laminate. After the water dries, it will form dust, which will bring the risk of hot spots. At the same time, the operating temperature of the photovoltaic module increases, which also greatly reduces the power generation efficiency of the photovoltaic module, resulting in losses.

[0003] Therefore, A-side-less modules with a frame no higher than the laminate were developed. However, due to the special nature of the manufacturing process, when the photovoltaic module is framed with the front facing down, the A-side-less photovoltaic module, under the influence of gravity, cannot support the laminate, causing the laminate to fall naturally. Before the silicone sealant between the frame and the laminate dries, the laminate separates from the frame, resulting in frame assembly failure. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a fastener for a photovoltaic module, which can prevent the laminate from moving relative to the frame and also prevent the laminate from detaching from the frame.

[0005] This utility model further proposes a photovoltaic module.

[0006] A fastener for a photovoltaic module according to a first aspect of the present invention includes: a top plate for pressing the top of the frame of the photovoltaic module and the top of the laminate; a bottom plate disposed opposite to the top plate and for pressing the bottom of the frame; and a connecting plate bent between the top plate and the bottom plate and for pressing the side of the frame.

[0007] Therefore, the fasteners of this photovoltaic module can prevent the laminate from moving relative to the frame, and also prevent the laminate from detaching from the frame.

[0008] According to some embodiments of the present invention, the distance between the top plate and the bottom plate decreases in the direction away from the connecting plate.

[0009] According to some embodiments of the present invention, the top plate and the connecting plate form an angle α, where α satisfies the relationship: 45° < α < 90°; and / or the bottom plate and the connecting plate form an angle β, where β satisfies the relationship: 45° < β < 90°.

[0010] According to some embodiments of the present invention, the connection position between the top plate and the connecting plate is the first bent end, and the connection position between the bottom plate and the connecting plate is the second bent end. The inner wall of at least one of the first bent end and the second bent end is provided with a clearance groove for avoiding the frame.

[0011] According to some embodiments of the present invention, the clearance groove is an arc-shaped groove.

[0012] According to some embodiments of the present invention, the fastener of the photovoltaic module further includes: a flange, which is connected to the base plate and bent toward the top plate relative to the base plate.

[0013] According to some embodiments of the present invention, the flange forms an angle γ with the base plate, where γ satisfies the relationship: 45°<γ<90°; and / or the end of the flange away from the base plate is constructed as an arc-shaped end.

[0014] According to some embodiments of this utility model, the width of the top plate is W, where W satisfies the relationship: 3mm≤W≤20mm; and / or the thickness of the top plate is not less than the thickness of the bottom plate; and / or the end of the top plate away from the connecting plate is constructed as an arc-shaped end.

[0015] A photovoltaic module according to a second aspect of the present invention includes: a frame having a mounting groove; a laminate having a mounting groove; and fasteners for the photovoltaic module, wherein a top plate presses against the top of the frame and the top of the laminate, a bottom plate presses against the bottom of the frame, and a connecting plate presses against the side of the frame.

[0016] According to some embodiments of this utility model, the height h1 of the connecting plate and the height h2 of the frame satisfy the relationship h1≥h2; and / or the fastener further includes: a flange, the flange being connected to the base plate and bent relative to the base plate toward the top plate, the height of the flange being h3, and the bottom wall thickness of the frame being h4, h3 and h4 satisfy the relationship h3≥0.5h4.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a structural schematic diagram of the fastener according to an embodiment of the present utility model;

[0020] Figure 2 This is a cross-sectional schematic diagram of the fastener according to an embodiment of the present utility model;

[0021] Figure 3 This is a schematic diagram of the assembly of the fastener and the photovoltaic module according to an embodiment of the present utility model;

[0022] Figure 4 This is a schematic diagram of the structure of multiple photovoltaic modules stacked according to an embodiment of the present utility model.

[0023] Figure label:

[0024] 100. Fasteners;

[0025] 10. Top plate; 20. Bottom plate; 30. Connecting plate;

[0026] 40. First bend end;

[0027] 50. Second bend end;

[0028] 60. Clearance groove;

[0029] 70. Flip the edge;

[0030] 200. Photovoltaic module; 201. Frame; 202. Laminated component. Detailed Implementation

[0031] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0032] The following is for reference. Figures 1-4 Describes the fastener 100 of the photovoltaic module 200 according to an embodiment of the present utility model.

[0033] Reference Figures 1-2 As shown, the fastener 100 of the photovoltaic module 200 according to the first aspect embodiment of the present invention includes: a top plate 10, a bottom plate 20 and a connecting plate 30. The top plate 10 is used to press the top of the frame 201 and the top of the laminate 202 of the photovoltaic module 200. The bottom plate 20 is disposed opposite to the top plate 10 and is used to press the bottom of the frame 201. The connecting plate 30 is bent and connected between the top plate 10 and the bottom plate 20, and is used to press the side of the frame 201.

[0034] Specifically, when assembling the frame without side A with the laminate, the front side of the laminate is facing down. When the silicone between the frame without side A and the laminate is not dry, the laminate is prone to detach from the frame without side A due to gravity.

[0035] Therefore, the top plate 10 in the fastener 100 of the photovoltaic module presses the top of the frame 201 and the top of the laminate 202 of the photovoltaic module. The top plate 10 can provide support for the top of the frame 201 and the top of the laminate 202, which can prevent the laminate 202 from detaching from the frame 201.

[0036] Furthermore, the base plate 20 is used to press the bottom of the frame 201, thereby restricting the movement of the bottom of the frame 201 and further preventing the base plate 20 from moving relative to the bottom of the frame 201. The top plate 10 can restrict the position of the laminate 202 in the height direction of the frame 201, thus fixing the position of the laminate 202 in the height direction of the frame 201 and preventing the laminate 202 from moving relative to the frame 201.

[0037] Furthermore, the connecting plate 30 is used to press the side of the frame 201, which provides support to the side of the frame 201 and thus prevents the laminate 202 from shifting in the width direction of the frame 201.

[0038] Therefore, the fastener 100 of the photovoltaic module 200 can prevent the laminate 202 from moving relative to the frame 201, and can also prevent the laminate 202 from detaching from the frame 201.

[0039] According to some embodiments of this utility model, such as Figure 2 As shown, the distance between the top plate 10 and the bottom plate 20 decreases in the direction away from the connecting plate 30. In this way, the force that the top plate 10 can apply to the top of the frame 201 and the top of the laminate 202 can gradually increase, and the force that the bottom plate 20 can apply to the bottom of the frame 201 can gradually increase, thereby making the connection between the fastener 100 and the frame 201 and the laminate 202 more stable and secure.

[0040] According to some embodiments of this utility model, such as Figure 2 As shown, the top plate 10 and the connecting plate 30 form an angle α, where α satisfies the relationship: 45°<α<90°, and the bottom plate 20 and the connecting plate 30 form an angle β, where β satisfies the relationship: 45°<β<90°.

[0041] When the fastener 100 is made of PP material, the included angle α formed by the top plate 10 and the connecting plate 30 can satisfy 80°≤α≤89°. For example, the included angle α formed by the top plate 10 and the connecting plate 30 can be set to 85°. The top plate 10 is elastic, so the top plate 10 can apply a certain clamping force to the top of the frame 201 and the top of the laminate 202, thereby preventing the laminate 202 from moving relative to the frame 201.

[0042] Furthermore, the included angle β formed by the base plate 20 and the connecting plate 30 can satisfy 80°≤β≤89°. For example, the included angle β formed by the base plate 20 and the connecting plate 30 can be set to 85°. The base plate 20 is elastic, so the base plate 20 can apply a certain clamping force to the bottom of the frame 201, thereby preventing the base plate 20 from moving relative to the frame 201.

[0043] According to some embodiments of this utility model, such as Figure 1 As shown, the connection position between the top plate 10 and the connecting plate 30 is the first bent end 40, and the connection position between the bottom plate 20 and the connecting plate 30 is the second bent end 50. The inner wall of at least one of the first bent end 40 and the second bent end 50 is provided with a clearance groove 60 for avoiding the frame 201.

[0044] The inner walls of the first bending end 40 and the second bending end 50 are both provided with relief grooves 60. These relief grooves 60 can avoid interference with the corners of the frame 201, thereby ensuring that the frame 201 and the fastener 100 fit tightly together.

[0045] According to some embodiments of this utility model, such as Figure 1 As shown, the clearance groove 60 is an arc-shaped groove.

[0046] The arc-shaped groove provides clearance space for the corners of the frame 201, thereby preventing the corners of the frame 201 from colliding with the inner walls of the first bent end 40 and the second bent end 50.

[0047] Furthermore, the arc-shaped groove design can effectively reduce stress concentration. If the first bend end 40 and the second bend end 50 are at right angles, stress tends to concentrate at the right angle, which can easily lead to cracks. Moreover, the smooth transition of the arc-shaped groove allows stress to be evenly distributed throughout the groove, thereby improving the durability and safety of the fastener 100.

[0048] According to some embodiments of this utility model, such as Figure 1 As shown, the fastener 100 of the photovoltaic module 200 also includes a flange 70, which is connected to the base plate 20 and is bent relative to the base plate 20 toward the top plate 10.

[0049] The flange 70 is bent relative to the bottom plate 20 and faces the top plate 10, and the flange 70 abuts against the bottom wall of the frame 201.

[0050] The flange 70 can block the bottom wall of the frame 201. The flange 70 can cooperate with the bottom wall of the frame 201 to limit movement. In this way, the flange 70 can prevent the bottom wall of the frame 201 from moving and also prevent the fastener 100 from detaching from the frame 201.

[0051] According to some embodiments of this utility model, such as Figure 2 As shown, the flange 70 forms an angle γ with the base plate 20, and γ satisfies the relationship: 45°<γ<90°. The end of the flange 70 away from the base plate 20 is constructed as an arc-shaped end.

[0052] When the fastener 100 is a PP material fastener, the included angle γ formed by the flange 70 and the base plate 20 can satisfy 80°≤γ≤89°. For example, the included angle γ formed by the flange 70 and the base plate 20 can be 87°. Since the flange 70 is elastic, the flange 70 can provide clamping force to the bottom of the frame 201, thereby preventing the fastener 100 from detaching from the frame 201.

[0053] Furthermore, the end of the flange 70 furthest from the base plate 20 is constructed as an arc-shaped end. The arc-shaped end can avoid excessive pressure on the bottom wall of the frame 201, thereby preventing deformation of the bottom wall of the frame 201.

[0054] According to some embodiments of this utility model, such as Figure 2 As shown, the width of the top plate 10 is W, which satisfies the relationship: 3mm≤W≤20mm. The thickness of the top plate 10 is not less than the thickness of the bottom plate 20. The end of the top plate 10 away from the connecting plate 30 is constructed as an arc-shaped end.

[0055] The width of the top plate 10 is at least greater than the distance between the laminate 202 and the frame 201 in the width direction of the top plate 10. The minimum width of the top plate 10 is 3mm to ensure that the top plate 10 has a clamping force on the laminate 202. If the width of the top plate 10 is less than 3mm, it will not be able to apply a clamping force to the laminate 202. If the width of the top plate 10 is greater than 20mm, it will be inconvenient to install the fastener 100. When the width of the top plate 10 is set to 13mm, the top plate 10 can make full contact with the laminate 202, which increases the contact area between the top plate 10 and the laminate 202. This avoids stress concentration at the contact point between the top plate 10 and the laminate 202 and reduces the pressure of the top plate 10 on the laminate 202.

[0056] Furthermore, the thickness of the top plate 10 is not less than the thickness of the bottom plate 20. For example, the thickness of the top plate 10 can be set to be equal to the thickness of the bottom plate 20, which ensures that the fastener 100 has high strength. Moreover, when multiple photovoltaic modules 200 with fasteners 100 are stacked, there are gaps between adjacent photovoltaic modules 200. The top plate 10 and the bottom plate 20 can fill the gaps, thereby preventing deformation of multiple photovoltaic modules 200 during stacking.

[0057] Furthermore, the end of the top plate 10 furthest from the connecting plate 30 is constructed as an arc-shaped end. This prevents the arc-shaped end of the top plate 10 from bursting the laminate 202 when it is being extruded, thus protecting the laminate 202.

[0058] like Figure 3 As shown, the photovoltaic module 200 according to the second aspect embodiment of the present utility model includes: a frame 201, a laminate 202 and a fastener 100 for the photovoltaic module 200 of the above embodiment. The frame 201 is provided with a mounting groove, the laminate 202 is disposed in the mounting groove, the top plate 10 presses the top of the frame 201 and the top of the laminate 202, the bottom plate 20 presses the bottom of the frame 201, and the connecting plate 30 presses the side of the frame 201.

[0059] The mounting groove in the frame 201 facilitates the installation of the laminate 202. The top plate 10 presses against the top of the frame 201 and the top of the laminate 202, thus preventing the laminate 202 from moving relative to the frame 201. The bottom plate 20 presses against the bottom of the frame 201, and the connecting plate 30 presses against the side of the frame 201, which helps to fix the frame 201 and the laminate 202, making the connection between the laminate 202 and the frame 201 more stable and secure.

[0060] According to some embodiments of this utility model, such as Figure 3 As shown, the height of the connecting plate 30 is h1, and the height of the frame 201 is h2. h1 and h2 satisfy the relationship: h1≥h2. The fastener 100 also includes a flange 70, which is connected to the base plate 20 and is bent relative to the base plate 20 toward the top plate 10. The height of the flange 70 is h3, and the bottom wall thickness of the frame 201 is h4. h3 and h4 satisfy the relationship: h3≥0.5h4.

[0061] The height h1 of the connecting plate 30 is not less than the height h2 of the frame 201, so that the connecting plate 30, the top plate 10 and the bottom plate 20 can together wrap the frame 201.

[0062] Furthermore, the height h3 of the flange 70 is not less than half the thickness h4 of the bottom wall of the frame 201. This can prevent the flange 70 from detaching from the bottom wall of the frame 201, thereby making the flange 70 and the bottom wall of the frame 201 fit together more stably and firmly.

[0063] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0064] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0065] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A fastener for a photovoltaic module, characterized in that, include: A top plate, which is used to press the top of the frame of the photovoltaic module and the top of the laminate; A base plate, which is disposed opposite to the top plate, is used to press down the bottom of the frame; A connecting plate, which is bent between the top plate and the bottom plate and is used to press the side of the frame.

2. The fastener for a photovoltaic module according to claim 1, characterized in that, The distance between the top plate and the bottom plate decreases in the direction away from the connecting plate.

3. The fastener for a photovoltaic module according to claim 2, characterized in that, The top plate and the connecting plate form an angle α, where α satisfies the relationship: 45° < α < 90°; and / or The base plate and the connecting plate form an angle β, where β satisfies the relationship: 45° < β < 90°.

4. The fastener for a photovoltaic module according to claim 1, characterized in that, The connection point between the top plate and the connecting plate is the first bend end, and the connection point between the bottom plate and the connecting plate is the second bend end. The inner wall of at least one of the first bend end and the second bend end is provided with a clearance groove for avoiding the frame.

5. The fastener for a photovoltaic module according to claim 4, characterized in that, The clearance groove is an arc-shaped groove.

6. The fastener for a photovoltaic module according to claim 1, characterized in that, Also includes: A flange is connected to the base plate and is bent toward the top plate relative to the base plate.

7. The fastener for a photovoltaic module according to claim 6, characterized in that, The flange forms an angle γ with the base plate, where γ satisfies the relationship: 45° < γ < 90°; and / or The end of the flange furthest from the base plate is constructed as an arc-shaped end.

8. The fastener for a photovoltaic module according to any one of claims 1-7, characterized in that, The width of the top plate is W, which satisfies the following relationship: 3mm ≤ W ≤ 20mm; and / or The thickness of the top plate is not less than the thickness of the bottom plate; and / or The end of the top plate away from the connecting plate is constructed as an arc-shaped end.

9. A photovoltaic module, characterized in that, include: The frame is provided with a mounting groove; A laminate, wherein the laminate is disposed in the mounting groove; The fastener for the photovoltaic module according to any one of claims 1-8, wherein the top plate presses against the top of the frame and the top of the laminate, the bottom plate presses against the bottom of the frame, and the connecting plate presses against the side of the frame.

10. The photovoltaic module according to claim 9, characterized in that, The height h1 of the connecting plate and the height h2 of the frame, h1 and h2 satisfy the relationship: h1≥h2; and / or The fastener further includes a flange, which is connected to the base plate and bent toward the top plate relative to the base plate. The height of the flange is h3, and the thickness of the bottom wall of the frame is h4. h3 and h4 satisfy the relationship: h3≥0.5h4.

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