Frame for photovoltaic module and photovoltaic module

Abstract

The utility model relates to the technical field of photovoltaic modules, in particular to a frame for a photovoltaic module and the photovoltaic module. The frame comprises a frame body, the frame body comprises an installation groove part used for containing the edge of a laminated piece, and the installation groove part comprises a first side wall, a second side wall and a bottom wall connected between the first side wall and the second side wall, the glue overflowing part comprises a first anti-overflow section connected with one end, far away from the bottom wall, of the first side wall, and a second anti-overflow section connected with the first anti-overflow section; the first anti-overflow section is bent to form a glue overflow groove; the second spill-proof section extends towards the bottom wall side, so that one side face, facing the second side wall, of the second spill-proof section is parallel to the second side wall, and a gap for clamping the laminated piece is formed between the second spill-proof section and the second side wall. The frame can solve the problem of glue overflow and can prevent the phenomenon of edge bursting.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic components, in particular to a frame for a photovoltaic component and a photovoltaic component. Background Art

[0002] Photovoltaic modules are power generation devices that generate direct current when exposed to sunlight. Their main components are composed of a laminate consisting of solar panels, tempered glass, EVA, a backplane, and a frame. The frame is set at the edge of the laminate. When setting the frame at the edge of the laminate, generally, adhesive is first filled into the mounting groove of the frame by a glue machine, and then the edge of the laminate is inserted into the mounting groove of the frame, so that the frame can be fixed to the edge of the laminate by adhesive.

[0003] In the related art, the frame of the photovoltaic module mainly includes a frame body, which includes a mounting groove; an elastic body is arranged at the opening end of the side wall of the mounting groove close to the light-receiving surface of the laminate, and an acute angle is formed between the elastic body and the side wall close to the light-receiving surface of the laminate. During installation, the edge of the laminate is embedded in the mounting groove of the photovoltaic module frame.

[0004] Among them, due to the setting of the acute angle between the elastomer and the side wall, the elastomer is not enough to prevent the silicone from overflowing from the mirror surface of the component, and the mirror surface is prone to overflowing, affecting the appearance and production of the component. At the same time, after the photovoltaic component is assembled, it is generally necessary to apply pressure test to the frame of the photovoltaic component, which makes the frame easy to cause the edge of the laminate to burst.

[0005] Based on this, the present invention studies and develops a new type of frame for photovoltaic components to solve the above problems. Utility Model Content

[0006] One purpose of the utility model is to provide a frame for a photovoltaic module, which can prevent excess adhesive between a first side wall and a laminate from overflowing to the light-receiving surface of the laminate, thereby solving the problem of glue overflow; at the same time, it can prevent the occurrence of edge bursting, and can also reduce the stress acting on the laminate, thereby avoiding damage to the laminate due to stress concentration.

[0007] The utility model adopts the following technical solution: a frame for a photovoltaic module, comprising:

[0008] The frame body comprises a mounting groove portion for accommodating the edge of the laminate, wherein the mounting groove portion comprises a first side wall and a second side wall which are arranged opposite to each other and a bottom wall connected between the first side wall and the second side wall;

[0009] The glue overflow part includes a first anti-overflow section connected to one end of the first side wall away from the bottom wall, and a second anti-overflow section connected to the first anti-overflow section; the first anti-overflow section is bent to form an overflow glue groove; the second anti-overflow section extends toward the bottom wall so that a side surface of the second anti-overflow section facing the second side wall is parallel to the second side wall, and a gap for clamping the laminate is formed between the second anti-overflow section and the second side wall.

[0010] Furthermore, the first side wall, the first anti-overflow section and the second anti-overflow section form a glue overflow groove.

[0011] Furthermore, the first anti-overflow section has an arc-shaped bend.

[0012] Furthermore, one end of the second anti-overflow section away from the first anti-overflow section is in an arc shape.

[0013] Furthermore, the frame body also includes a frame installation portion and a frame cavity portion, and the frame installation portion, the frame cavity portion, and the installation groove portion are arranged in sequence.

[0014] Furthermore, the frame is formed by bending the plate multiple times.

[0015] Furthermore, one end of the second anti-overflow section away from the first anti-overflow section is a closed surface.

[0016] Furthermore, one end of the frame mounting portion away from the frame cavity portion is bent to form a curling edge, and the curling edge is located above the frame mounting portion.

[0017] Furthermore, a plurality of fixing members are arranged at intervals on the upper surface of the curled edge along its length direction.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The photovoltaic module frame provided by the utility model can be used to cooperate with the laminate to assemble the photovoltaic module. When the photovoltaic module frame is matched with the laminate, the edge of the laminate can be inserted into the installation groove, and the light-receiving surface of the laminate is inserted toward the second anti-overflow section, so that the second anti-overflow section can abut against the light-receiving surface of the laminate, and the second anti-overflow section and the light-receiving surface of the laminate are tightly attached and connected in plane contact, thereby enhancing the sealing performance, preventing the excess adhesive between the first side wall and the laminate from overflowing to the light-receiving surface of the laminate, and solving the glue overflow problem.

[0020] In addition, the side surface of the second anti-overflow section facing the second side wall is parallel to the second side wall, which can prevent the occurrence of edge bursting and effectively protect the edge integrity of the laminate. It can also reduce the stress acting on the laminate and avoid damage to the laminate due to stress concentration, thereby improving the stability and reliability of the laminate and extending its service life. The parallel structure helps to maintain the uniformity and stability of the gap between the laminates, ensuring that the position of the laminate in the frame is stable, providing a strong guarantee for the normal use of the photovoltaic module.

[0021] Another object of the utility model is to provide a photovoltaic module, which includes the above-mentioned photovoltaic module frame and laminate, the edge of the laminate is embedded in the installation groove of the photovoltaic module frame, the second anti-overflow section of the overflow glue part abuts against the light-receiving surface of the laminate, and the abutment is a planar contact connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments 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 schematic diagram of the structure of the photovoltaic module after assembly in a specific embodiment of the utility model;

[0024] Figure 2 The three-dimensional frame of the photovoltaic module in the specific embodiment of the utility model Figure 1 ;

[0025] Figure 3 It is a front view of a frame for a photovoltaic module in a specific embodiment of the utility model;

[0026] Figure 4 The three-dimensional frame of the photovoltaic module in the specific embodiment of the utility model Figure 2 ;

[0027] In the figure: frame body 1, mounting groove portion 101, first side wall 102, second side wall 103, bottom wall 104, frame mounting portion 11, frame cavity portion 12, curling edge 13, reinforcing rib 14; overflow glue part 2, first anti-overflow section 20, second anti-overflow section 21, overflow glue groove 22; laminated part 3. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the utility model.

[0029] The following is combined with Figure 1 To Attachment Figure 4 And specific embodiments describe the utility model in detail:

[0030] like Figures 1 to 4As shown, the utility model provides a frame for a photovoltaic assembly, which includes a frame body 1 and a glue overflow part 2.

[0031] Among them, the frame body 1 includes an installation groove portion 101 for accommodating the edge of the laminate 3, and the installation groove portion 101 includes a first side wall 102 and a second side wall 103 arranged opposite to each other and a bottom wall 104 connected between the first side wall 102 and the second side wall 103, that is, the first side wall 102, the bottom wall 104 and the second side wall 103 are connected in sequence to form the installation groove portion 101.

[0032] The overflow glue part 2 is connected to one end of the first side wall 102 away from the bottom wall 104, and the overflow glue part 2 includes a first overflow prevention section 20 connected to one end of the first side wall 102 away from the bottom wall 104, and a second overflow prevention section 21 connected to the first overflow prevention section 20. The first overflow prevention section 20 is bent, that is, it extends toward the second side wall 103 to form an overflow glue groove 22. The second overflow prevention section 21 extends toward the bottom wall 104 so that the side of the second overflow prevention section 21 facing the second side wall 103 is parallel to the second side wall 103, and a gap is formed between the second overflow prevention section 21 and the second side wall 103 to clamp the laminate 3, so that the second overflow prevention section 21 and the light-receiving surface of the laminate 3 are abutted, and the abutment is a plane contact connection. It should be noted that the specific gap value between the lower surface of the second overflow prevention section 21 and the upper surface of the second side wall 103 is not limited in the utility model, and is set by those skilled in the art according to the thickness of the laminate 3. Preferably, the frame body 1 and the overflow glue piece 2 are an integrally formed structure.

[0033] The photovoltaic module frame provided by the utility model can be used to cooperate with the laminate 3 to assemble photovoltaic modules. When the photovoltaic module frame is matched with the laminate 3, the edge of the laminate 3 can be inserted into the mounting groove 101, so that the light-receiving surface of the laminate 3 is inserted toward the second anti-overflow section 21, so that the second anti-overflow section 21 can abut against the light-receiving surface of the laminate 3, and the second anti-overflow section 21 and the light-receiving surface of the laminate 3 are tightly attached and connected in plane contact, thereby enhancing the sealing performance, so as to prevent the excess adhesive between the first side wall 102 and the laminate 3 from overflowing to the light-receiving surface of the laminate 3, and solve the problem of glue overflow. The plane contact connection has a large contact area, which reduces the pressure concentration when the laminate 3 is framed, thereby reducing the burst rate of the laminate 3 when the laminate 3 is framed, and improving the yield of the laminate 3 framed. At the same time, the tightness of the plane contact connection helps to ensure the position stability of the laminate 3 in the frame, improve the accuracy and quality of the frame, and enhance the mechanical load capacity.

[0034] In addition, the side of the second anti-overflow section 21 facing the second side wall 103 is parallel to the second side wall 103, which can also prevent the occurrence of edge bursting and effectively protect the edge integrity of the laminate 3. It can also reduce the stress acting on the laminate 3 and avoid damage to the laminate 3 due to stress concentration, thereby improving the stability and reliability of the laminate 3 and extending its service life. The parallel structure helps to maintain the uniformity and stability of the gap between the laminate 3 and ensure that the position of the laminate 3 in the frame is stable, providing a strong guarantee for the normal use of the photovoltaic module.

[0035] Further, in this embodiment, the bottom wall 104 connects the first side wall 102 and the second side wall 103, and the bottom wall 104 is extended from one end of the second side wall 103 in a direction perpendicular to the second side wall 103 in a direction away from the second side wall 103. The end of the bottom wall 104 away from the second side wall 103 is connected to the first side wall 102, and the first side wall 102 is extended from one end of the bottom wall 104 in a direction perpendicular to the bottom wall 104 in a direction away from the bottom wall 104. The first side wall 102 is formed on the side facing the second side wall 103. At the same time, the first side wall 102, the second side wall 103, and the second anti-overflow section 21 are arranged in parallel and perpendicular to the bottom wall 104. The parallel design can ensure that the abutting pressure of each part of the second anti-overflow section 21 is relatively uniform when it abuts against the laminate 3, thereby ensuring the consistency of the effect of preventing the adhesive from overflowing; at the same time, when the laminate 3 is assembled into the frame, the parallel design can make the operation smoother and improve the efficiency and accuracy of assembly. In addition, the parallel and vertical arrangement helps to ensure the tightness of the connection between the components, especially at the joint with the laminate 3, which can improve the sealing effect. In order to improve the dimensional accuracy of the frame installation groove 101 during production, the flatness of the upper surface of the first side wall 102 is required to be ±0.5 mm, so that the upper surface of the first side wall 102 is a flat surface, which can improve the dimensional accuracy of the frame installation groove 101 during production and solve the problem of low dimensional accuracy caused by the bending of the first side wall 102.

[0036] Furthermore, in the utility model, the overflow glue groove 22 is surrounded by the first side wall 102, the first anti-overflow section 20 and the second anti-overflow section 21. Compared with the second anti-overflow section 21 arranged close to the first side wall 102 in the related art, the accommodating space of the overflow glue groove 22 is expanded, and more adhesive that may overflow can be accommodated, thereby further reducing the risk of the adhesive overflowing to the light-receiving surface of the laminate 3, thereby improving the assembly efficiency. In addition, more sufficient overflow glue accommodating space helps to maintain a good connection between the frame and the laminate 3, thereby improving the overall reliability, service life and aesthetics of the photovoltaic module.

[0037] Specifically, in the present invention, the specific shape of the first anti-overflow section 20 is not limited. For example, the first anti-overflow section 20 is provided with an arc shape at the bend. The arc shape can reduce resistance and stress concentration, making the appearance of the frame more beautiful and smooth. More specifically, in the present embodiment, the surface of the first anti-overflow section 20 facing the overflowing glue groove 22 is a concave arc surface, and the surface of the side facing away from the overflowing glue groove 22 is a convex arc surface. Correspondingly, the surface of the first anti-overflow section 20 facing the overflowing glue groove 22 is a concave arc surface, which helps to guide the excess adhesive to flow more smoothly into the overflowing glue groove 22 and improve the collection efficiency of the overflowing glue; and the surface of the side facing away from the overflowing glue groove 22 is a convex arc surface. This arc structure can disperse stress, enhance the structural strength of the first anti-overflow section 20, and make it more durable. At the same time, the design of the convex arc surface does not have sharp points, which reduces the probability of the laminate being scratched and damaged.

[0038] Furthermore, in order to reduce the bursting rate of the laminate 3 when it is framed, the end of the second anti-overflow section 21 away from the first anti-overflow section 20 is designed to be arc-shaped, and the laminate 3 is inserted into the installation groove 101 of the frame. During the framing process, the arc-shaped end is smoother when in contact with the laminate 3, reducing the collision and damage to the laminate 3 caused by sharp edges and corners, thereby reducing the bursting rate.

[0039] Further, the frame body 1 also includes a frame mounting portion 11 and a frame cavity portion 12, and the frame mounting portion 11, the frame cavity portion 12, and the mounting groove portion 101 are connected sequentially from bottom to top. And the frame body 1 can be formed by rolling a steel plate, and is formed by bending the first profile plate and the second profile plate multiple times, and the double-layer plate structure is designed to enhance the load capacity. In this embodiment, the first profile plate and the second profile plate are both steel plates, and the thickness of the steel plate is about 0.5mm to 1.0mm. The frame is formed by bending the steel plate to solve the compatibility problem with the aluminum frame. The steel frame can meet the general use of existing production and terminal use without special changes, greatly reducing the cost of frame materials and components, and mass production is easier. Among them, the frame mounting portion 11 is used to fix the entire frame, and correspondingly, the first profile plate and the second profile plate at the frame mounting portion 11 are mutually attached. The frame cavity portion 12 is set at one end of the frame mounting portion 11, which is used for inserting and installing the corner code, etc., to achieve the connection between adjacent frames, and can also improve the strength of the entire frame. The frame cavity portion 12 can form a rectangular frame structure, but is not limited thereto; in this embodiment, the height of the frame cavity portion 12 is approximately 28 mm to 35 mm, and a reinforcing rib 14 is formed on the inner side thereof to improve the longitudinal structural strength of the frame.

[0040] The frame mounting portion 11 may be bent and arranged to form a curling 13 at one end away from the frame cavity portion 12. The curling 13 is located above the frame mounting portion 11, i.e., is bent toward the frame cavity portion 12. The curling portion may be a multi-layer profile, such as a three-layer, four-layer or five-layer profile. The curling design is adopted to prevent the entire cross section from being distorted and deformed, so that the entire cross section is fixed as a whole, thereby improving the stability of the entire cross section. At the same time, in order to enhance the stability of the overall structure, a number of fixings may be arranged at intervals along the length direction of the curling 13 on the upper surface thereof. The fixings include but are not limited to rivets, nails, pins, etc. During the frame processing and manufacturing process, if the curling 13 is abnormal or not fixed during the processing, the overall structure may become loose. Fixings may be arranged on the upper surface of the curling 13 by pressure riveting, etc., to achieve finishing fixation, thereby making the entire structure more stable and reliable.

[0041] Specifically, the frame is formed by bending the plate multiple times, and the bending design makes the components more integrated, which helps to maintain the stability and reliability of the frame structure. In this embodiment, the bottom wall 104, the first side wall 102, the first anti-overflow section 20, and the second anti-overflow section 21 are all formed by laminating the first profile plate and the second profile plate and bending them multiple times. The laminating and bending design makes the components more integrated, reduces the possibility of deformation and looseness, and helps to maintain the stability and reliability of the frame structure. At the same time, the anti-overflow performance of the frame and the matching effect with the laminate 3 can be optimized, thereby improving the overall quality of the photovoltaic module.

[0042] Specifically, the free end of the second anti-overflow section 21, that is, the end away from the first anti-overflow section 20, can be closed or not. Closed means that the first profile plate and the second profile plate are the same plate, and the first profile plate and the second profile plate are not interrupted at the free end of the second anti-overflow section 21, and then a closed surface is formed at the free end of the second anti-overflow section 21, that is, the end away from the first anti-overflow section 20, that is, the frame of the photovoltaic module is formed by bending a profile plate through a cold bending roller pressing integrated molding device to form the frame with a closed surface. Non-closed means that the first profile plate and the second profile plate are two plates, and the first profile plate and the second profile plate are discontinuous and not connected at the free end of the second anti-overflow section 21, and then a non-closed surface is formed at the free end of the second anti-overflow section 21. Preferably, a closed surface is formed at the end of the second anti-overflow section 21, which is away from the first anti-overflow section 20, and the laminate 3 is inserted and installed in the installation groove 101 of the frame. During the framing process, the closed surface is smoother when in contact with the laminate 3, reducing the collision and damage that may be caused to the laminate 3 by sharp corners, and reducing the burst rate. At the same time, the closed cross section makes the structure of the second anti-overflow section 21 more complete, reduces the weak points in the structure, and can better withstand external forces and pressures.

[0043] The utility model also provides a photovoltaic module based on the above-mentioned photovoltaic module frame, and the photovoltaic module includes: the above-mentioned photovoltaic module frame and a laminate 3, the edge of the laminate 3 is embedded in the mounting groove 101 of the photovoltaic module frame, and the second anti-overflow section 21 of the overflow glue member 2 abuts against the light-receiving surface of the laminate 3, and the abutment is a plane contact connection. During assembly, first fill the overflow glue groove 22 with sealant, and the thickness of the glue is controlled to be about 2mm to 3mm, and then the edge of the laminate 3 is embedded in the mounting groove 101 of the photovoltaic module frame, and the laminate 3 is gradually squeezed toward the bottom wall 104 to complete the packaging of the photovoltaic module. After the packaging is completed, it can be cured for about 4 days.

[0044] The photovoltaic module provided by the utility model adopts all the technical solutions of all the embodiments of the photovoltaic module frame, and therefore has at least all the beneficial effects brought by the technical solutions of the embodiments of the photovoltaic module frame, which will not be described one by one here.

[0045] The utility model is further described above with the help of specific embodiments, but it should be understood that the specific description here should not be construed as limiting the essence and scope of the utility model. Various modifications made to the above embodiments by ordinary technicians in this field after reading this specification are all within the scope of protection of the utility model.

Claims

1. A frame for a photovoltaic module, characterized in that: It includes: The frame body comprises a mounting groove portion for accommodating an edge of the laminate, wherein the mounting groove portion comprises a first side wall and a second side wall arranged opposite to each other and a bottom wall connected between the first side wall and the second side wall; The glue overflow part includes a first anti-overflow section connected to one end of the first side wall away from the bottom wall, and a second anti-overflow section connected to the first anti-overflow section; the first anti-overflow section is bent to form an overflow glue groove; the second anti-overflow section extends toward the bottom wall so that a side surface of the second anti-overflow section facing the second side wall is parallel to the second side wall, and a gap for clamping the laminate is formed between the second anti-overflow section and the second side wall.

2. The photovoltaic module frame according to claim 1, characterized in that: The first side wall, the first anti-overflow section and the second anti-overflow section form the glue overflow groove.

3. The photovoltaic module frame according to claim 1, characterized in that: The first anti-overflow section is arranged in an arc shape at a bending position.

4. The photovoltaic module frame according to claim 1, characterized in that: One end of the second anti-overflow section away from the first anti-overflow section is in an arc shape.

5. The photovoltaic module frame according to claim 1, characterized in that: The frame body further comprises a frame installation portion and a frame cavity portion, and the frame installation portion, the frame cavity portion, and the installation groove portion are arranged in sequence.

6. The photovoltaic module frame according to claim 5, characterized in that: The frame is formed by bending a plate multiple times.

7. The photovoltaic module frame according to claim 6, characterized in that: One end of the second anti-overflow section away from the first anti-overflow section is a closed surface.

8. The photovoltaic module frame according to claim 5, characterized in that: One end of the frame mounting portion away from the frame cavity portion is bent to form a curling edge, and the curling edge is located above the frame mounting portion.

9. The photovoltaic module frame according to claim 8, characterized in that: A plurality of fixing members are arranged at intervals on the upper surface of the curling edge along the length direction thereof.

10. A photovoltaic module, characterized in that: The photovoltaic module comprises: The frame for a photovoltaic module according to any one of claims 1 to 9; and The edge of the laminate is embedded in the installation groove, the second anti-overflow section of the overflow glue piece abuts against the light-receiving surface of the laminate, and the abutting position is a plane contact connection.

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