Packaging frame and photovoltaic module

Abstract

The utility model belongs to the field of photovoltaic technology, and discloses a packaging frame and a photovoltaic assembly, the packaging frame comprises a first frame, the first frame comprises a frame main body, a limiting part, a connecting part and a buffer layer, the connecting part is connected between the limiting part and the frame main body, and the connecting part, the limiting part and the frame main body are enclosed to form an accommodating groove for clamping a photovoltaic piece. And by arranging the limiting part, the mounting stability of the photovoltaic piece in the accommodating groove can be improved. A buffer layer is arranged on the side, back to the containing groove, of the limiting part and / or the side, back to the containing groove, of the frame body. When the photovoltaic module is packaged, the packaging structure can be hooped at the buffer layer, so that the hooping force of the packaging structure is applied to the photovoltaic module through the buffer layer, and the problems of deformation, even plate explosion and the like can be avoided. When the buffer layer is arranged on one side, back to the accommodating groove, of the limiting part, the deformation resistance of the limiting part can be improved, and the problem that the limiting part is deformed due to insufficient thickness and the adhesive overflows from the space between the limiting part and the photovoltaic piece is solved.

Description

Technical Field

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

[0002] Photovoltaic panels are used to convert solar energy into electrical energy. Usually, a packaging frame is installed around the circumference of the photovoltaic panel. The packaging frame plays a protective role for the photovoltaic panel and ensures the safety during the transportation of the photovoltaic panel. The packaging frame is provided with a receiving groove, and the edge area of the photovoltaic panel is snapped into the receiving groove and connected to the packaging frame through an adhesive.

[0003] In the prior art, for some frame structures, there is no shielding and limiting structure above the receiving groove, which is usually called a frame without an A surface in the field. When installing a photovoltaic panel using a frame without an A surface, there are problems such as easy overflow and debonding between the photovoltaic panel and the frame structure, and poor connection stability between the photovoltaic panel and the frame structure. Moreover, when the assembled packaging frame and photovoltaic module are finally packed, the tightening force of the packing structure acts on one side of the packaging frame without a shielding and limiting structure, directly contacting the photovoltaic panel, which easily causes problems such as deformation or even explosion of the photovoltaic module.

[0004] Therefore, there is an urgent need for a packaging frame and a photovoltaic module to solve the above problems existing in the prior art. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a packaging frame and a photovoltaic module, which can reduce the possibility of glue overflow and debonding between the photovoltaic panel and the packaging frame, improve the installation stability between the photovoltaic panel and the packaging frame, and can avoid problems such as deformation or even explosion during the packing of the photovoltaic module.

[0006] To achieve the above object, the utility model adopts the following technical solutions:

[0007] On the one hand, a packaging frame is provided, including a first frame, and the first frame includes:

[0008] A frame body;

[0009] A limiting part, which is arranged at an interval from the frame body;

[0010] A connecting part, which is connected between the limiting part and the frame body, and together with the limiting part and the frame body encloses a receiving groove for clamping a photovoltaic component;

[0011] A buffer layer, which is provided on one side of the limiting part facing away from the receiving groove and / or on one side of the frame body facing away from the receiving groove.

[0012] As an alternative solution of the encapsulation frame provided by the present utility model, a positioning portion is convexly provided on the inner wall of the accommodating groove, and the positioning portion is configured to abut against the photovoltaic component, and a first glue overflow groove is formed between the connecting portion and the photovoltaic component.

[0013] As an alternative solution of the encapsulation frame provided by the present utility model, the positioning portion is convexly provided at one end of the connecting portion away from the limiting portion and / or the frame body; or, the positioning portion is convexly provided at one end of the connecting portion away from the frame body and / or the limiting portion.

[0014] As an alternative solution of the encapsulation frame provided by the present utility model, the positioning portion is convexly provided at the junction of the limiting portion and the connecting portion, and the first glue overflow groove is formed between the positioning portion and the frame body, and a second glue overflow groove is formed between the positioning portion and the limiting portion.

[0015] As an alternative solution of the encapsulation frame provided by the present utility model, a slope surface is provided on one side of the limiting portion facing away from the frame body, and the slope surface gradually approaches the frame body in a direction away from the connecting portion;

[0016] Or, a contact surface and a slope surface are provided on one side of the limiting portion facing the frame body, the contact surface is located between the connecting portion and the slope surface, the contact surface can be in sealing contact with the photovoltaic component, and the slope surface gradually moves away from the frame body in a direction away from the connecting portion.

[0017] As an alternative solution of the encapsulation frame provided by the present utility model, the encapsulation frame further includes a strengthening and bearing portion, the strengthening and bearing portion and the connecting portion are respectively connected to two ends of the frame body, and the strengthening and bearing portion supports the bottom surface of the photovoltaic component.

[0018] As an alternative solution of the encapsulation frame provided by the present utility model, the strengthening and bearing portion includes:

[0019] A first bearing section, a first end of the first bearing section is connected to the frame body, and a second end of the first bearing section extends in a direction away from the photovoltaic component;

[0020] A second bearing section, a first end of the second bearing section is connected to the second end of the first bearing section, and a second end of the second bearing section supports the bottom surface of the photovoltaic component;

[0021] Or, the strengthening and bearing portion is a straight structure.

[0022] As an alternative solution of the encapsulation frame provided by the present utility model, the frame body is provided with a cavity, and strengthening ribs are convexly provided on the inner wall of the cavity;

[0023] And / or, the encapsulation frame further includes an extension portion, the extension portion is connected to the frame body, and is flush with the end face of the frame body facing away from the limiting portion.

[0024] As an alternative embodiment of the encapsulation frame provided by the present invention, the encapsulation frame further includes a second frame. The photovoltaic component includes two relatively arranged first side edges and two relatively arranged second side edges, and the length of the first side edge is less than the length of the second side edge.

[0025] The first frame is engaged with the first side edge, the second frame is engaged with the second side edge, the maximum dimension of the first frame in the thickness direction of the photovoltaic component is equal to the maximum dimension of the second frame in the thickness direction of the photovoltaic component, and the buffer layer is flush with the second frame.

[0026] And / or, the thickness of the buffer layer is greater than or equal to 0.5 mm and less than or equal to 5 mm.

[0027] On the other hand, a photovoltaic module is provided, including a photovoltaic component and the encapsulation frame as described above, and the photovoltaic component is installed in the encapsulation frame.

[0028] Advantages of the present invention:

[0029] The present invention provides an encapsulation frame and a photovoltaic module including the encapsulation frame. The encapsulation frame is arranged around the circumference of the photovoltaic component to play a role of support and protection. When installing the photovoltaic component, the edge of the photovoltaic component is snapped into the receiving groove formed by enclosing the frame body, the connecting portion and the limiting portion. By setting the limiting portion, the installation stability of the photovoltaic component in the receiving groove can be increased. When there is an adhesive between the inner wall of the receiving groove and the photovoltaic component, the limiting portion can block the adhesive from overflowing from the receiving groove to a certain extent, and can also increase the bonding area between the first frame and the photovoltaic component, improve the bonding stability, and reduce the possibility of debonding between the first frame and the photovoltaic component. Moreover, by setting the buffer layer, when packing the photovoltaic module, the packing structure can be tightened at the buffer layer, and the tightening force of the packing structure is applied to the photovoltaic module through the buffer layer, which can avoid problems such as deformation or even explosion of the photovoltaic module during packing. In addition, when the buffer layer is arranged on the side of the limiting portion facing away from the receiving groove, the anti-deformation ability of the limiting portion can be improved, and the problem that the limiting portion is deformed due to insufficient thickness and then the adhesive overflows from between the limiting portion and the photovoltaic component can be prevented. Description of the drawings

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required to be used in the embodiments of the present invention. Obviously, the following described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to the drawings.

[0031] Figure 1 It is a schematic diagram of a photovoltaic module provided by a specific embodiment of the present utility model;

[0032] Figure 2 It is a schematic structural diagram of a first frame of a packaging frame provided by a first embodiment of the present utility model;

[0033] Figure 3 It is a schematic connection diagram of a first frame and a photovoltaic component provided by a first embodiment of the present utility model;

[0034] Figure 4 It is a schematic structural diagram of a first frame provided by a second embodiment of the present utility model;

[0035] Figure 5 It is a schematic connection diagram of a first frame and a photovoltaic component provided by a second embodiment of the present utility model;

[0036] Figure 6 It is a schematic connection diagram of a first frame and a photovoltaic component provided by a third embodiment of the present utility model;

[0037] Figure 7 It is a schematic connection diagram of a first frame and a photovoltaic component provided by a fourth embodiment of the present utility model;

[0038] Figure 8 It is a schematic connection diagram of a first frame and a photovoltaic component provided by a fifth embodiment of the present utility model;

[0039] Figure 9 It is a schematic connection diagram of a first frame and a photovoltaic component provided by a sixth embodiment of the present utility model;

[0040] Figure 10 It is a schematic structural diagram of a first frame and a second frame provided by a specific embodiment of the present utility model;

[0041] Figure 11 It is a schematic connection diagram of a first frame and a second frame provided by a specific embodiment of the present utility model.

[0042] In the figure:

[0043] 100, first frame; 200, second frame; 300, photovoltaic component;

[0044] 1, frame main body; 2, limiting part; 3, connecting part; 4, accommodating groove; 5, buffer layer; 6, positioning part; 7, strengthening and bearing part; 8, extending part;

[0045] 10, cavity; 11, top plate; 12, bottom plate; 13, first side plate; 14, second side plate; 15, reinforcing rib;

[0046] 21. Slope surface; 22. Contact surface;

[0047] 41. Engaging groove section; 42. First glue overflow groove; 43. Second glue overflow groove;

[0048] 71. First bearing section; 72. Second bearing section. Detailed implementation manner

[0049] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the sake of description, only the parts related to the present utility model are shown in the drawings, rather than all the structures.

[0050] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. 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 situations.

[0051] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "above", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below", and "under" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the horizontal height of the first feature is lower than that of the second feature.

[0052] In the description of this embodiment, the orientation or positional relationship terms such as "above", "below", "left", and "right" are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0053] In this embodiment, the term "and / or" only describes the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, in the present utility model, the character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0054] In the embodiments of the present utility model, the same reference numerals represent the same components, and for the sake of brevity, in different embodiments, the detailed description of the same components is omitted.

[0055] As Figure 1 shown, this embodiment provides a photovoltaic module, including a packaging frame and a photovoltaic component 300, and the photovoltaic component 300 is installed on the packaging frame. Specifically, the packaging frame is arranged circumferentially around the photovoltaic component 300 to play a role in support and protection.

[0056] The packaging frame includes a first frame 100. As Figure 2 shown, it is a structural schematic diagram of the first frame 100, where the first frame 100 includes a frame body 1, a limiting part 2, a connecting part 3, and a buffer layer 5.

[0057] Combined with Figure 2 and Figure 3 , the limiting part 2 is arranged at an interval from the frame body 1; the connecting part 3 is connected between the limiting part 2 and the frame body 1, and the connecting part 3 and the limiting part 2 and the frame body 1 enclose a receiving groove 4 for clamping the photovoltaic component 300. When installing the photovoltaic component 300, the edge of the photovoltaic component 300 is snapped into the receiving groove 4 formed by enclosing the frame body 1, the connecting part 3, and the limiting part 2. By setting the limiting part 2, the installation stability of the photovoltaic component 300 in the receiving groove 4 can be increased. When there is an adhesive between the inner wall of the receiving groove 4 and the photovoltaic component 300, the limiting part 2 can, to a certain extent, prevent the adhesive from overflowing from the receiving groove 4, and can also increase the bonding area between the first frame 100 and the photovoltaic component 300, improve the bonding stability, and reduce the possibility of delamination between the first frame 100 and the photovoltaic component 300.

[0058] A buffer layer 5 is arranged on one side of the limiting part 2 facing away from the receiving groove 4 and / or on one side of the frame body 1 facing away from the receiving groove 4. By setting the buffer layer 5, problems such as deformation and explosion of the board during packaging of the photovoltaic module can be alleviated.

[0059] In some embodiments, referring to Figure 2 , a buffer layer 5 can be arranged only on one side of the limiting part 2 facing away from the receiving groove 4, and no buffer layer 5 is arranged on one side of the frame body 1 facing away from the receiving groove 4.

[0060] In some embodiments, a buffer layer 5 can be arranged only on one side of the frame body 1 facing away from the receiving groove 4, and no buffer layer 5 is arranged on one side of the limiting part 2 facing away from the receiving groove 4.

[0061] In some other embodiments, a buffer layer 5 may be provided on both the side of the limiting portion 2 facing away from the receiving groove 4 and the side of the frame body 1 facing away from the receiving groove 4.

[0062] By providing the buffer layer 5, when packing the photovoltaic module, the packing structure can be tightened at the buffer layer 5, and the tightening force of the packing structure is applied to the photovoltaic module through the buffer layer 5, which can avoid problems such as deformation or even explosion of the photovoltaic module during packing. In addition, when the buffer layer 5 is provided on the side of the limiting portion 2 facing away from the receiving groove 4, the anti-deformation ability of the limiting portion 2 can be improved, preventing the problem that the limiting portion 2 is deformed due to insufficient thickness and then the adhesive overflows from between the limiting portion 2 and the photovoltaic element 300.

[0063] Optionally, the buffer layer 5 is adhered to the limiting portion 2 or the frame body 1. After installation, the connection is stable and not easy to fall off, and the adhesion operation is relatively convenient. The buffer layer 5 can be installed before the photovoltaic element 300 is inserted into the receiving groove 4, or can be installed after the photovoltaic element 300 is inserted into the receiving groove 4.

[0064] Optionally, the buffer layer 5 can be made of organic or inorganic materials, including but not limited to materials such as PET (polyethylene terephthalate), PP (polypropylene), ceramics, metals, cardboard, etc.

[0065] Optionally, a positioning portion 6 is convexly provided on the inner wall of the receiving groove 4. The positioning portion 6 is configured to abut against the photovoltaic element 300 to position the photovoltaic element 300 inserted into the receiving groove 4. When the photovoltaic element 300 abuts against the positioning portion 6, it indicates that the photovoltaic element 300 is installed in place. After the photovoltaic element 300 abuts against and is positioned by the positioning portion 6, there is a gap between it and the connecting portion 3, so as to form a first glue overflow groove 42 between the photovoltaic element 300 and the connecting portion 3. When the photovoltaic element 300 is snapped into the receiving groove 4, the adhesive injected into the receiving groove 4 is pushed into the first glue overflow groove 42. The first glue overflow groove 42 can store a certain amount of excess adhesive, which can improve the bonding strength of the photovoltaic element 300 in the receiving groove 4. Moreover, the excess adhesive is stored in the first glue overflow groove 42, preventing the adhesive from overflowing from between the limiting portion 2 and the photovoltaic element 300. That is, the positioning portion 6 plays a certain role in guiding the adhesive, and the adhesive in the receiving groove 4 enters the first glue overflow groove 42 along the surface of the positioning portion 6 under the pushing action of the photovoltaic element 300.

[0066] [[ID=1,7]]Refer to Figure 3 , the receiving groove 4 includes a snap-fit groove section 41 and the above-mentioned first glue overflow groove 42. The snap-fit groove section 41 is located on one side of the positioning portion 6 and is used to receive and snap-fit the photovoltaic element 300, and the first glue overflow groove 42 is located between the photovoltaic element 300, the positioning portion 6 and the connecting portion 3.

[0067] Optionally, the adhesive is a sealing silicone.

[0068] See Figure 1 , the first frame 100 extends along the length or width direction of the photovoltaic device 300 and is strip-shaped. The positioning portion 6 extends along the length direction of the first frame 100 in the receiving groove 4, so that the entire side surface of the photovoltaic device 300 can abut against the positioning portion 6, improving the positioning accuracy.

[0069] Furthermore, there is a gap between the end of the positioning portion 6 far from the connecting portion 3 and the end of the limiting portion 2 far from the connecting portion 3. That is, the extension dimension of the limiting portion 2 relative to the connecting portion 3 is greater than the extension dimension of the positioning portion 6 relative to the limiting portion 2, ensuring that when the photovoltaic device 300 abuts against the positioning portion 6, the limiting portion 2 can cover the upper surface of the photovoltaic device 300.

[0070] See Figure 2 and Figure 3 , in some embodiments, the positioning portion 6 protrudes from the end of the connecting portion 3 far from the limiting portion 2 and / or the frame body 1. That is, the positioning portion 6 can protrude on the frame body 1, can protrude from the end of the connecting portion 3 far from the limiting portion 2, and can also protrude from the end of the connecting portion 3 far from the limiting portion 2 and the frame body 1 at the same time (that is, provided at the junction of the frame body 1 and the connecting portion 3). Specifically to Figure 2 and Figure 3 , the positioning portion 6 protrudes at the junction of the frame body 1 and the connecting portion 3. While abutting and positioning the photovoltaic device 300, it can also improve the connection strength between the frame body 1 and the connecting portion 3. A first glue overflow groove 42 is formed among the positioning portion 6, the connecting portion 3, and the limiting portion 2.

[0071] In the above embodiments, the positioning portion 6 can be arc-shaped, square, triangular or other shapes, which are not specifically limited here. Specifically to Figure 3 , the positioning portion 6 has an arc-shaped surface that protrudes toward the photovoltaic device 300 and is used to abut against the photovoltaic device 300, which can avoid scratching the photovoltaic device 300. Moreover, the arc-shaped surface can also play a good role in guiding the adhesive, so that the adhesive smoothly enters the first glue overflow groove 42 along the arc-shaped surface.

[0072] In the above embodiments, the width dimension of the positioning portion 6 is greater than or equal to 2 mm and less than or equal to 6 mm. The width of the positioning portion 6 should not be too wide or too narrow. If the positioning portion 6 is too wide, the dimension of the photovoltaic device 300 extending into the receiving groove 4 will be too narrow, making it difficult to ensure the installation firmness of the photovoltaic device 300 in the receiving groove 4; if the positioning portion 6 is too narrow, the width of the first glue overflow groove 42 will be too narrow, making it difficult to store a sufficient amount of adhesive, resulting in a serious glue overflow problem between the photovoltaic device 300 and the limiting portion 2. At the same time, it will also cause the dimension of the photovoltaic device 300 extending into the receiving groove 4 to be too large, and the area of the limiting portion 2 covering the upper surface (light-receiving surface) of the photovoltaic device 300 to be too large, resulting in a reduction in the light-receiving area of the photovoltaic device 300 and a decrease in the working efficiency of the photovoltaic device 300.

[0073] Further, in the above embodiments, the height dimension of the positioning portion 6 is greater than or equal to 1 mm and less than or equal to 4 mm, ensuring that the positioning portion 6 has sufficient strength while avoiding occupying too much space in the receiving groove 4.

[0074] In some embodiments, the positioning portion 6 protrudes from one end of the connecting portion 3 away from the frame body 1 and / or the limiting portion 2. That is, the positioning portion 6 can protrude on the limiting portion 2, can protrude from one end of the connecting portion 3 away from the frame body 1, or can protrude from both one end of the connecting portion 3 away from the frame body 1 and the limiting portion 2 (that is, provided at the junction of the limiting portion 2 and the connecting portion 3). Specifically, Figure 4 and Figure 5 , when the positioning portion 6 protrudes at the junction of the limiting portion 2 and the connecting portion 3, it can also abut against the photovoltaic component 300.

[0075] Referring to Figure 4 and Figure 5 , a first glue overflow groove 42 is formed between the positioning portion 6 and the frame body 1, and the first glue overflow groove 42 is used to store excess adhesive glue. Also, a second glue overflow groove 43 is formed between the positioning portion 6 and the limiting portion 2. When the adhesive glue in the first glue overflow groove 42 is sufficient, the adhesive glue can flow along the positioning portion 6 into the second glue overflow groove 43, enabling the second glue overflow groove 43 to also store a certain amount of excess adhesive glue. On the one hand, it can prevent the adhesive glue from overflowing between the limiting portion 2 and the photovoltaic component 300. On the other hand, the adhesive glue in the second glue overflow groove 43 can improve the bonding strength between the limiting portion 2 and the photovoltaic component 300, making the connection between the photovoltaic component 300 and the first frame 100 more secure.

[0076] In the above embodiments, the surface of the positioning portion 6 for abutting against the photovoltaic component 300 is an arc surface, which can avoid scratching the photovoltaic component 300.

[0077] The above Figure 4 and Figure 5 In the shown embodiments, the width dimension of the positioning portion 6 is greater than or equal to 2 mm and less than or equal to 6 mm. The width of the positioning portion 6 should not be too wide nor too narrow. If the positioning portion 6 is too wide, the dimension of the photovoltaic component 300 extending into the receiving groove 4 will be too narrow, making it difficult to ensure the installation firmness of the photovoltaic component 300 in the receiving groove 4. If the positioning portion 6 is too narrow, the width of the first glue overflow groove 42 will be too narrow, making it difficult to store a sufficient amount of adhesive glue, resulting in a serious glue overflow problem between the photovoltaic component 300 and the limiting portion 2. At the same time, it will also cause the dimension of the photovoltaic component 300 extending into the receiving groove 4 to be too large, and the area of the limiting portion 2 blocking the upper surface (light-receiving surface) of the photovoltaic component 300 to be too large, resulting in a reduction in the light-receiving area of the photovoltaic component 300 and a decrease in the working efficiency of the photovoltaic component 300.

[0078] Further, the above Figure 4 andFigure 5 In the illustrated embodiment, the height dimension of the positioning portion 6 is greater than or equal to 1 mm and less than or equal to 4 mm, ensuring that the positioning portion 6 has sufficient strength while avoiding occupying too much space in the receiving groove 4.

[0079] In some embodiments, referring to Figure 4 and Figure 5 , the positioning portion 6 can extend upward, that is, the positioning portion 6 gradually approaches the limiting portion 2 along the direction away from the connecting portion 3, so that the adhesive in the second glue overflow groove 43 will not flow back into the first glue overflow groove 42.

[0080] In some embodiments, referring to Figure 6 , the positioning portion 6 can extend downward, that is, the positioning portion 6 gradually moves away from the limiting portion 2 along the direction away from the connecting portion 3, so as to expand the space of the second glue overflow groove 43 to a certain extent, enabling the second glue overflow groove 43 to store more adhesive, effectively preventing glue overflow, and facilitating the improvement of the bonding strength between the limiting portion 2 and the photovoltaic component 300.

[0081] Optionally, referring to Figure 2 , the encapsulation frame further includes a strengthening and bearing portion 7. The strengthening and bearing portion 7 and the connecting portion 3 are respectively connected to both ends of the frame body 1. The strengthening and bearing portion 7 extends away from the frame body 1 and supports on the bottom surface of the photovoltaic component 300. By providing the strengthening and bearing portion 7, the contact area between the first frame 100 and the photovoltaic component 300 can be increased, the supporting area of the first frame 100 for the photovoltaic component 300 can be enlarged, the bearing capacity of the first frame 100 can be improved, and the deformation of the first frame 100 can be reduced.

[0082] In some embodiments, referring to Figure 1 , the strengthening and bearing portion 7 includes a first bearing section 71 and a second bearing section 72. Among them, the first end of the first bearing section 71 is connected to the frame body 1, and the second end of the first bearing section 71 extends in the direction away from the photovoltaic component 300; the first end of the second bearing section 72 is connected to the second end of the first bearing section 71, and the second end of the second bearing section 72 supports on the bottom surface of the photovoltaic component 300. That is, the strengthening and bearing portion 7 formed by the first bearing section 71 and the second bearing section 72 is a bent or folded structure, which can increase the strength of the strengthening and bearing portion 7, improve the bending deformation resistance of the strengthening and bearing portion 7, and increase the strength and bending deformation resistance of the entire first frame 100.

[0083] In some embodiments, referring to Figure 7 , the strengthening and bearing portion 7 can also be a straight structure, and its upper surface is used to support the bottom surface of the photovoltaic component 300, so that there is a large contact area between the strengthening and bearing portion 7 and the photovoltaic component 300, improving the support stability for the photovoltaic component 300.

[0084] Further, the bearing part 7 extends along the length direction of the first frame 100 to ensure stable support for the photovoltaic module 300 in the length direction of the first frame 100.

[0085] Generally, the photovoltaic module 300 includes a front glass plate, a first encapsulant film, a cell, a second encapsulant film, and a back glass plate that are stacked and laminated in sequence. The front glass plate is arranged upward as the light-receiving surface, and the limiting part 2 covers the edge area of a part of the front glass plate. Since the limiting part 2 is higher than the front glass plate of the photovoltaic module 300 by a certain height, it is not conducive to the outward discharge of dust and accumulated water on the upper surface of the photovoltaic module 300.

[0086] To solve the above problems, in some embodiments, referring to Figure 8 , a slope surface 21 is provided on the side of the limiting part 2 facing away from the frame main body 1. The slope surface 21 gradually approaches the frame main body 1 in the direction away from the connecting part 3, so that dust, accumulated water, etc. can smoothly drain along the slope surface 21, playing a good role in dust prevention and water accumulation prevention.

[0087] In other embodiments, referring to Figure 9 , a contact surface 22 and a slope surface 21 are provided on the side of the limiting part 2 facing the frame main body 1. The contact surface 22 is located between the connecting part 3 and the slope surface 21. The contact surface 22 can be in sealed contact with the photovoltaic module 300, and the slope surface 21 gradually moves away from the frame main body 1 in the direction away from the connecting part 3. The contact surface 22 can be directly in sealed contact with the front glass plate of the photovoltaic module 300 or in sealed contact with the front glass plate of the photovoltaic module 300 through an adhesive, which can prevent accumulated water or dust from entering the first glue overflow groove 42. Figure 9 The design of the slope surface 21 in [] can expand the opening size of the receiving groove 4 to a certain extent, enabling the photovoltaic module 300 to enter the receiving groove 4 more smoothly. At the same time, it can play a certain role in dust and water accumulation prevention. After the accumulated water, etc. fills the area between the slope surface 21 and the photovoltaic module 300, it drains out along both ends of the slope surface 21.

[0088] Moreover, if the slope surface 21 shown in [] is provided, the width of the limiting part 2 needs to be adaptively widened, which can improve the limiting effect of the limiting part 2 on the photovoltaic module 300. Figure 9 As shown in [], the frame main body 1 is provided with a cavity 10, which can achieve weight reduction, reduce material use, and lower the manufacturing cost of the encapsulation frame while ensuring that the frame main body 1 has sufficient strength and stiffness. Further, reinforcing ribs 15 are convexly provided on the inner wall of the cavity 10 to strengthen the frame main body 1, improve the anti-load capacity of the frame main body 1, and prevent the frame main body 1 from being severely deformed.

[0089] Specifically, as shown in Figure 2 , the frame main body 1 is provided with a cavity 10, which can achieve weight reduction, reduce material use, and lower the manufacturing cost of the encapsulation frame while ensuring that the frame main body 1 has sufficient strength and stiffness. Further, reinforcing ribs 15 are convexly provided on the inner wall of the cavity 10 to strengthen the frame main body 1, improve the anti-load capacity of the frame main body 1, and prevent the frame main body 1 from being severely deformed.

[0090] Specifically, as shown in Figure 2As shown, the frame body 1 includes a top plate 11 and a bottom plate 12 which are oppositely arranged, a first side plate 13 and a second side plate 14 which are oppositely arranged. The top plate 11, the first side plate 13, the bottom plate 12 and the second side plate 14 are connected end to end to form a square structure. One or more reinforcing ribs 15 are arranged on the top plate 11 and / or the first side plate 13 and / or the bottom plate 12 and / or the second side plate 14, which helps to improve the anti-deformation ability of the frame body 1.

[0091] Furthermore, the reinforcing ribs 15 extend along the length direction of the first frame 100, so that the strength of each part of the frame body 1 in the length direction is improved.

[0092] As Figure 2 shown, the encapsulation frame further includes an extension part 8. The extension part 8 is connected to the frame body 1 and is flush with the end face of the frame body 1 facing away from the limiting part 2. That is, the bottom surface of the extension part 8 is flush with the bottom surface of the bottom plate 12 of the frame body 1, so that the bottom of the entire first frame 100 has a sufficient support area. When the first frame 100 is installed on the bracket for supporting the photovoltaic module, the installation stability between the first frame 100 and the bracket can be improved.

[0093] See Figure 2 , one end of the extension part 8 is connected to the frame body 1, and the other end extends in a direction away from the frame body 1. The extension part 8 and the strengthening and bearing part 7 are both located on the same side of the frame body 1, which is beneficial to reducing the occupied space of the entire encapsulation frame and making the structure more compact and reasonable.

[0094] Furthermore, the extension part 8 extends along the length direction of the first frame 100 to ensure stable contact between the first frame 100 and the bracket in the entire length direction.

[0095] Preferably, the frame body 1, the connecting part 3, the limiting part 2, the positioning part 6 and the strengthening and bearing part 7 are integrally formed, and can be prepared and formed by using aluminum alloy materials, steel materials, composite materials, etc., to ensure good bearing capacity.

[0096] As Figure 1 shown, the photovoltaic component 300 is rectangular, which includes two first side edges arranged oppositely and two second side edges arranged oppositely. The length of the first side edge is less than the length of the second side edge. That is, the first side edge is the short side of the photovoltaic component 300, and the second side edge is the long side of the photovoltaic component 300. Combining Figure 1 , Figure 10 and Figure 11, the encapsulation frame further includes a second frame 200. Specifically, two first frames 100 and two second frames 200 are provided. The first frame 100 is correspondingly clamped with the first side through the accommodation groove 4. The structure of the second frame 200 is basically the same as that of the first frame 100, and it is also correspondingly clamped with the second side through the accommodation groove 4. The end of the first frame 100 is connected to the end of the second frame 200 to ensure the stability of the entire encapsulation frame. Specifically, corner fittings can be inserted into the cavity 10 of the first frame 100 and the cavity 10 of the second frame 200 to realize the connection between the two.

[0097] When the photovoltaic module is installed, it has a certain inclination angle relative to the horizontal plane. Specifically, the two second sides are inclined relative to the horizontal plane, and one first side is lower than the other first side. That is, after the photovoltaic module is installed, the lower first frame 100 is at the lowest point. To enable the accumulated water, dust, etc. on the upper surface of the photovoltaic element 300 to be discharged smoothly and avoid accumulation on the upper surface of the photovoltaic element 300, the limiting part 2 of the first frame 100 is usually set to be thinner, which is conducive to the outward discharge of accumulated water and dust. In this way, the height dimension of the first frame 100 (i.e., the maximum dimension of the first frame 100 along the thickness direction of the photovoltaic panel) is smaller than the height dimension of the second frame 200 (the maximum dimension of the second frame 200 along the thickness direction of the photovoltaic panel). When packing the photovoltaic module, due to the height difference between the first frame 100 and the second frame 200, it is easy to cause problems such as deformation and explosion of the board.

[0098] In this embodiment, by providing a buffer layer 5 on the limiting part 2 and / or the frame body 1, the height difference between the first frame 100 and the second frame 200 can be compensated. By setting the buffer layer 5 with an appropriate thickness, the thickness dimension of the first frame 100 can be made equal to the thickness dimension of the second frame 200.

[0099] Specifically, referring to Figure 10 and Figure 11 , the bottoms of the first frame 100 and the second frame 200 are flush. A buffer layer 5 is provided on the limiting part 2 of the first frame 100, and this buffer layer 5 is flush with the upper surface of the second frame 200. When packing the photovoltaic module, the packing structure acts on the buffer layer 5, which can avoid problems such as deformation and explosion of the board caused by the height difference between the first frame 100 and the second frame 200. At the same time, the setting of the buffer layer 5 on the limiting part 2 can also relieve the problem of glue overflow caused by the insufficient thickness of the limiting part 2.

[0100] Exemplarily, the thickness of the buffer layer 5 is greater than or equal to 0.5 mm and less than or equal to 5 mm.

[0101] Obviously, the above embodiments of the present utility model are merely examples for clearly illustrating the present utility model, rather than limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present utility model. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims

1. An encapsulation frame, characterized in that, Comprising a first frame (100), the first frame (100) comprising: A frame body (1); A limiting portion (2), arranged at an interval from the frame body (1); A connecting portion (3), the connecting portion (3) being connected between the limiting portion (2) and the frame body (1), and enclosing with the limiting portion (2) and the frame body (1) to form a receiving groove (4) for clamping a photovoltaic component (300); A buffer layer (5), the buffer layer (5) being arranged on one side of the limiting portion (2) facing away from the receiving groove (4) and / or one side of the frame body (1) facing away from the receiving groove (4).

2. The encapsulation border according to claim 1, wherein The inner wall of the receiving groove (4) is convexly provided with a positioning portion (6), the positioning portion (6) being configured to abut against the photovoltaic component (300), and a first glue overflow groove (42) is formed between the connecting portion (3) and the photovoltaic component (300).

3. The encapsulation frame according to claim 2, wherein The positioning portion (6) protrudes from one end of the connecting portion (3) away from the limiting portion (2) and / or the frame body (1); or, the positioning portion (6) protrudes from one end of the connecting portion (3) away from the frame body (1) and / or the limiting portion (2).

4. The encapsulation border according to claim 2, wherein The positioning portion (6) protrudes at the junction of the limiting portion (2) and the connecting portion (3), and the first glue overflow groove (42) is formed between the positioning portion (6) and the frame body (1), and a second glue overflow groove (43) is formed between the positioning portion (6) and the limiting portion (2).

5. The encapsulation border according to claim 1, characterized in that One side of the limiting portion (2) facing away from the frame body (1) is provided with a slope surface (21), and the slope surface (21) gradually approaches the frame body (1) in a direction away from the connecting portion (3); Or, one side of the limiting portion (2) facing the frame body (1) is provided with a contact surface (22) and a slope surface (21), the contact surface (22) is located between the connecting portion (3) and the slope surface (21), the contact surface (22) can be in sealing contact with the photovoltaic component (300), and the slope surface (21) gradually moves away from the frame body (1) in a direction away from the connecting portion (3).

6. The encapsulation border according to claim 1, characterized in that, The encapsulation frame further comprises a strengthening and bearing portion (7), the strengthening and bearing portion (7) and the connecting portion (3) are respectively connected to two ends of the frame body (1), and the strengthening and bearing portion (7) supports the bottom surface of the photovoltaic component (300).

7. The encapsulation frame according to claim 6, characterized in that The strengthening and bearing portion (7) comprises: A first bearing section (71), a first end of the first bearing section (71) is connected to the frame body (1), and a second end of the first bearing section (71) extends in a direction away from the photovoltaic component (300); A second bearing section (72), a first end of the second bearing section (72) is connected to the second end of the first bearing section (71), and a second end of the second bearing section (72) supports the bottom surface of the photovoltaic component (300); Or, the strengthening and bearing portion (7) is a straight structure.

8. The encapsulation border according to claim 1, characterized in that, The frame body (1) is provided with a cavity (10), and the inner wall of the cavity (10) is convexly provided with a reinforcing rib (15); And / or, the encapsulation frame further includes an extension portion (8), the extension portion (8) is connected to the frame body (1), and is flush with the end surface of the frame body (1) facing away from the limiting portion (2).

9. The encapsulation border according to any one of claims 1-8, characterized in that, The encapsulation frame further includes a second frame (200), the photovoltaic component (300) includes two relatively arranged first side edges and two relatively arranged second side edges, and the length of the first side edge is less than the length of the second side edge; The first frame (100) is engaged with the first side edge, the second frame (200) is engaged with the second side edge, the maximum dimension of the first frame (100) in the thickness direction of the photovoltaic component (300) is equal to the maximum dimension of the second frame (200) in the thickness direction of the photovoltaic component (300), and the buffer layer (5) is flush with the second frame (200); And / or, the thickness of the buffer layer (5) is greater than or equal to 0.5 mm and less than or equal to 5 mm.

10. A photovoltaic module, characterized in that, It includes a photovoltaic component (300) and the encapsulation frame according to any one of claims 1-9, and the photovoltaic component (300) is installed in the encapsulation frame.

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