Frame, photovoltaic module and assembling method thereof

Abstract

The invention relates to a frame, a photovoltaic module and an assembling method thereof. The frame comprises a frame body and a limiting piece, a supporting part, a positioning part and a clamping part are arranged on one side of the frame body in a protruding mode, the supporting part is used for supporting the laminated piece, the positioning part is arranged between the supporting part and the clamping part, the positioning part is used for abutting against the side face of the laminated piece to position the laminated piece, a clamping groove is formed in the clamping part, and the limiting piece is clamped in the clamping groove. The limiting piece is used for being matched with the side face of the laminating piece in a limiting mode, and the limiting piece is lower than or flush with the front face of the laminating piece in the thickness direction of the laminating piece. The frame can ensure the structural stability of the photovoltaic module and reduce the dust deposition problem of the photovoltaic module.

Description

Technical Field

[0001] This application relates to the technical field of solar cells, and particularly to a frame, a photovoltaic module, and an assembly method of a photovoltaic module. Background Art

[0002] A photovoltaic module generally includes a laminate and a frame. Among them, the laminate includes a back glass, a first encapsulant layer, a cell string, a second encapsulant layer, and a front glass which are stacked. The frame surrounds the periphery of the laminate and serves to increase the strength of the photovoltaic module and further seal the photovoltaic module.

[0003] Currently, photovoltaic modules are troubled by positive surface dust accumulation in outdoor scenarios. And due to the influence of strong outdoor wind and a large amount of dust, when designing photovoltaic modules, it is necessary to consider solving the dust accumulation problem and also consider the reliability of wind load. As the most critical factor of the mechanical load of a photovoltaic module, the cross-sectional design of the frame directly affects the dust-proof effect of the photovoltaic module and the reliability of wind load resistance. In related technologies, some photovoltaic modules use frames without an A side to reduce the surface dust accumulation of the photovoltaic module. However, the frames without an A side have a poor limiting effect on the laminate and are not convenient for positioning the laminate during installation, resulting in an unstable structure of the assembled photovoltaic module and poor reliability of resistance to load. Summary of the Invention

[0004] Based on this, it is necessary to provide a frame, a photovoltaic module, and an assembly method thereof for reducing the dust accumulation problem of the photovoltaic module while ensuring the structural stability of the photovoltaic module.

[0005] In a first aspect, this application provides a frame for surrounding the periphery of a laminate, including:

[0006] A frame body, on one side of which a support portion, a positioning portion, and a clamping portion are protruding. The support portion is used to support the laminate, the positioning portion is arranged between the support portion and the clamping portion, the positioning portion is used to abut against the side surface of the laminate to position the laminate, and the clamping portion is provided with a clamping groove; and

[0007] A limiting member, which is clamped in the clamping groove, is used to abut against the side surface of the laminate and limit the laminate in the thickness direction of the laminate. In the thickness direction of the laminate, the limiting member is lower than or flush with the front surface of the laminate.

[0008] The technical solution is further described below:

[0009] In one of the embodiments, the limiting member includes:

[0010] A clamping portion, the clamping portion is supported and cooperated with one end of the clamping portion facing away from the frame body, and the clamping portion is used for limiting cooperation with the side surface of the laminate. In the thickness direction of the laminate, one end of the clamping portion facing away from the clamping portion is lower than or flush with the front surface of the laminate;

[0011] A plugging portion, the plugging portion protrudes from the bottom surface of the clamping portion, and the plugging portion is inserted into the card slot.

[0012] In one embodiment, a first limiting groove and a second limiting groove are provided on one side of the clamping portion facing the supporting portion. The first limiting groove and the second limiting groove are arranged at intervals in the thickness direction of the laminate. The first limiting groove is used for accommodating the side edge of the front cover plate of the laminate, and the second limiting groove is used for accommodating the side edge of the back cover plate of the laminate.

[0013] In one embodiment, both the first limiting groove and the second limiting groove are arc-shaped grooves.

[0014] In one embodiment, the depth of the second limiting groove is equal to the depth of the first limiting groove; or,

[0015] The depth of the second limiting groove is greater than the depth of the first limiting groove. A protruding portion is provided between the first limiting groove and the second limiting groove. The protruding portion is used for being inserted between the front cover plate and the back cover plate, and the protruding portion is used for abutting and cooperating with one side of the back cover plate close to the front cover plate.

[0016] In one embodiment, a slope surface is formed on one side of the clamping portion facing away from the frame body. Along the direction away from the laminate, the height of the slope surface gradually decreases; and / or,

[0017] A hollow cavity is provided inside the clamping portion; and / or,

[0018] The plugging portion is provided with a first limiting portion, and the groove wall of the card slot is provided with a second limiting portion that is in limiting cooperation with the first limiting portion.

[0019] In one embodiment, the card slot is opened on one side of the clamping portion facing away from the frame body, and the card slot extends obliquely in the direction close to the positioning portion.

[0020] In one embodiment, a concave arc surface is formed at one end of the positioning portion facing away from the frame body. Along the direction from the clamping portion to the supporting portion, the height of the concave arc surface gradually decreases.

[0021] In one embodiment, a glue application groove for accommodating sealant is formed between the positioning portion and the supporting portion, and an overflow groove for accommodating overflow glue is formed between the positioning portion and the clamping portion. The glue application groove, the overflow groove and the clamping groove are sequentially arranged at intervals along the direction from the supporting portion to the clamping portion.

[0022] In one embodiment, the height by which the positioning portion protrudes from the frame body is not lower than the height by which the clamping portion protrudes from the frame body.

[0023] In one embodiment, the clamping portion also supports and cooperates with the limiting member, and at least one of the contact surfaces of the clamping portion and the limiting member is provided with a first concave-convex portion, and the first concave-convex portion has a concave-convex structure; and / or,

[0024] The supporting portion includes a bearing surface for bearing the laminate; the bearing surface is provided with a second concave-convex portion, and the second concave-convex portion has a concave-convex structure; and / or,

[0025] A blocking member is provided at one end of the bearing surface away from the glue application groove, and the blocking member protrudes from the bearing surface, and the blocking member is used for fittingly contacting the back surface of the laminate.

[0026] In one embodiment, the frame body includes a mounting wall, an outer side wall connected to one end of the mounting wall, an inner side wall connected to the other end of the mounting wall, and a bottom wall opposite to the mounting wall and connecting the outer side wall and the inner side wall. The clamping portion, the positioning portion and the supporting portion all protrude from the mounting wall, and the clamping portion, the positioning portion and the supporting portion are sequentially arranged at intervals along the direction from the outer side wall to the inner side wall. The mounting wall, the outer side wall, the inner side wall and the bottom wall jointly enclose a closed first cavity; or,

[0027] The frame body includes the mounting wall, an outer side wall connected to one end of the mounting wall, and an inner side wall connected to the other end of the mounting wall. The clamping portion, the positioning portion and the supporting portion all protrude from the mounting wall, and the clamping portion, the positioning portion and the supporting portion are sequentially arranged at intervals along the direction from the outer side wall to the inner side wall. The mounting wall, the outer side wall and the inner side wall enclose a second cavity with an opening, and the opening is opposite to the mounting wall.

[0028] In a second aspect, the present application further provides a photovoltaic module, including a laminate and the above-mentioned frame. The laminate is arranged on the supporting portion, the side surface of the laminate is in limit fit with the limiting member, and the front surface of the laminate is higher than or flush with the limiting member.

[0029] In one embodiment, the laminate includes a back cover plate, a battery string, and a front cover plate that are stacked;

[0030] Wherein, the side edges of the back cover plate are flush with the side edges of the front cover plate; alternatively, the side edges of the back cover plate protrude from the side edges of the front cover plate.

[0031] In a third aspect, the present application further provides an assembly method for the above photovoltaic module, including the following steps:

[0032] Place the laminate on the support portion of the frame from top to bottom, and make the side surface of the laminate abut against the positioning portion;

[0033] Insert the limiting member into the card slot, and make the limiting member be in limiting cooperation with the side edge of the laminate.

[0034] In the above frame, photovoltaic module and its assembly method, the frame is configured as a split frame body and a limiting member. By providing a support portion, a positioning portion and a clamping portion on the frame body, the support portion can support the laminate, the positioning portion abuts against the side surface of the laminate to accurately position the laminate, and the card slot on the clamping portion is inserted and cooperated with the limiting member to fix the limiting member on the frame body. Then, the limiting member is in limiting cooperation with the laminate, so as to fix the laminate on the frame. And because the limiting member is in limiting cooperation with the side surface of the laminate, and at the same time the limiting member is lower than or flush with the front surface of the laminate, thus preventing the limiting member from blocking the front surface of the laminate, ensuring that the dust falling on the front surface of the laminate can flow out of the front surface of the laminate quickly with the washing of rainwater, and further reducing the phenomenon of dust accumulation on the front surface of the photovoltaic module while ensuring the structural stability of the photovoltaic module, improving the power generation efficiency of the photovoltaic module.

[0035] At the same time, due to the split design of the frame body and the limiting member, when assembling the photovoltaic module, the laminate can be first placed on the support portion of the frame from top to bottom. During this process, the positioning portion abuts against the side surface of the laminate to position the laminate, ensuring the accurate placement position of the laminate. Then, the limiting member is installed on the frame body. In this way, the laminate is prevented from being squeezed during the assembly process, reducing the risk of the laminate bursting, and also improving the convenience of assembling the photovoltaic module. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The drawings constituting a part of this application are used to provide a further understanding of this application. The schematic embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation to this application.

[0037] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0038] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the respective elements are only drawn illustratively in the drawings and not necessarily to the actual scale. In the drawings:

[0039] Figure 1 It is a cross-sectional schematic view of a photovoltaic module of the first embodiment.

[0040] Figure 2 It is a cross-sectional schematic view of a photovoltaic module of the second embodiment.

[0041] Figure 3 It is a cross-sectional schematic view of a photovoltaic module of the third embodiment.

[0042] Figure 4 It is a cross-sectional schematic view of a photovoltaic module of the fourth embodiment.

[0043] Figure 5 It is a structural schematic view of a limiting member of an embodiment.

[0044] Figure 6 It is a structural schematic view of a limiting member of another embodiment.

[0045] Figure 7 It is a structural schematic view of the limiting member of other embodiments.

[0046] Figure 8 It is a cross-sectional schematic view of a frame body of an embodiment.

[0047] Figure 9 It is a cross-sectional schematic view of a photovoltaic module of the fifth embodiment.

[0048] Figure 10 It is a schematic view of the assembly process of a photovoltaic module of an embodiment.

[0049] Explanation of reference numerals

[0050] 10. Frame body; 11. Mounting wall; 12. Outer wall; 13. Inner wall; 14. Bottom wall; 15. Support part; 151. Second concave-convex part; 152. Blocking piece; 161. Glue application groove; 162. Glue overflow groove; 17. Positioning part; 171. Concave arc surface; 18. Clamping part; 181. Card slot; 182. Second limiting part; 191. First cavity; 192. Second cavity; 193. Opening; 20. Limiting piece; 21. Clamping part; 211. First limiting groove; 212. Second limiting groove; 213. Protruding part; 214. First concave-convex part; 215. Slope surface; 216. Hollow cavity; 22. Insertion part; 221. First limiting part; 30. Laminated part; 31. Back cover plate; 32. Battery string; 33. Front cover plate; 40. Sealant. Detailed implementation manner

[0051] To make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manner of the present application in conjunction with the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0052] In the description of the present application, it should be understood that if these 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. appear, the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application.

[0053] In addition, if these terms "first" and "second" appear, these terms are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0054] In this application, unless otherwise clearly defined and limited, if terms such as "installed", "connected", "linked", "fixed", etc. appear, these terms 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 communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0055] In this application, unless otherwise clearly defined and limited, if there is a description such as the first feature being "on" or "under" the second feature, its meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over", and "on top of" the second feature can mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher horizontal level than the second feature. The first feature being "under", "beneath", and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower horizontal level than the second feature.

[0056] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If so, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.

[0057] In a first aspect, this application provides a frame for surrounding the periphery of the laminate 30 to provide sealing protection for the laminate 30. Specifically, referring to Figure 1 , the frame of an embodiment includes a frame body 10 and a limiting member 20. A support portion 15, a positioning portion 17, and a clamping portion 18 are convexly provided on one side of the frame body 10. The support portion 15 is used to support the laminate 30. The positioning portion 17 is arranged between the support portion 15 and the clamping portion 18. The positioning portion 17 is used to abut against the side surface of the laminate 30 to position the laminate 30. A clamping groove 181 is formed in the clamping portion 18. The limiting member 20 is clamped in the clamping groove 181. The limiting member 20 is used for limiting cooperation with the side surface of the laminate 30, and in the thickness direction of the laminate 30, the limiting member 20 is lower than or flush with the front surface of the laminate 30. Specifically, the limiting member 20 is used to abut against the side surface of the laminate 30 and limit the laminate 30 in the thickness direction of the laminate 30.

[0058] Continue to refer to Figure 1 In the second aspect of the present application, a photovoltaic module is further provided. The photovoltaic module of an embodiment includes a laminate 30 and the above-mentioned frame. The laminate 30 is disposed on the support portion 15, and the side surface of the laminate 30 is in limit fit with the limiting member 20, and the front surface of the laminate 30 is higher than or flush with the limiting member 20.

[0059] In the above-mentioned frame and photovoltaic module, the frame is configured as a split frame body 10 and a limiting member 20. By providing a support portion 15, a positioning portion 17, and a clamping portion 18 on the frame body 10, the support portion 15 can support the laminate 30, the positioning portion 17 can be in contact with the side surface of the laminate 30 to accurately position the laminate 30, and the limiting member 20 can be fixed on the frame body 10 by the insertion fit of the card slot 181 on the clamping portion 18 and the limiting member 20. Then, the limiting member 20 is in limit fit with the laminate 30, so that the laminate 30 can be fixed on the frame. Moreover, since the limiting member 20 abuts against the side surface of the laminate 30 and the limiting member 20 is lower than or flush with the front surface of the laminate 30, the limiting member 20 is prevented from blocking the front surface of the laminate 30, ensuring that the dust falling on the front surface of the laminate 30 can flow out of the front surface of the laminate 30 quickly with the washing of rainwater. Thus, while ensuring the structural stability of the photovoltaic module, the phenomenon of dust accumulation on the front surface of the photovoltaic module is reduced, and the power generation efficiency of the photovoltaic module is improved.

[0060] At the same time, since the frame body 10 and the limiting member 20 are of a split design, when assembling the photovoltaic module, the laminate 30 can be placed on the support portion 15 of the frame from top to bottom. During this process, the positioning portion 17 is in contact with the side surface of the laminate 30 to position the laminate 30 and ensure the accurate placement position of the laminate 30. Then, the limiting member 20 is installed on the frame body 10. In this way, the laminate 30 is prevented from being squeezed during the assembly process, the risk of the laminate 30 bursting is reduced, and the convenience of assembling the photovoltaic module is also improved.

[0061] Refer to Figure 1, optionally, in an embodiment, the card slot 181 is formed on the side of the clamping portion 18 away from the frame body 10, that is, the card slot 181 is formed on the top surface of the clamping portion 18, and the card slot 181 extends obliquely towards the positioning portion 17. Exemplarily, the included angle between the depth direction of the card slot 181 and the top surface of the clamping portion 18 can be greater than 0° and less than 90°. For example, it can be 30°, 45°, 60°, 75°, 80°, etc., which are not limited herein. Specifically, by obliquely arranging the card slot 181 towards the positioning portion 17, when installing the limiting member 20, the limiting member 20 can be inserted obliquely into the card slot 181 from top to bottom along the depth direction of the card slot 181, avoiding the vertical extrusion of the limiting member 20 inserted vertically on the laminate 30, and further reducing the risk of the laminate 30 bursting. After the limiting member is inserted into the card slot 181, the inclined card slot 181 can also ensure that the limiting member 20 is not easily detached in the vertical direction, thereby improving the limiting stability of the limiting member 20 to the laminate 30.

[0062] Optionally, in combination with Figure 1 and Figure 5 , in an embodiment, the limiting member 20 includes a clamping portion 21 and a plugging portion 22. The clamping portion 21 abuts against the end of the clamping portion 18 away from the frame body 10, and the clamping portion 21 is used for limiting cooperation with the side surface of the laminate 30. In the thickness direction of the laminate 30, the end of the clamping portion 21 away from the clamping portion 18 is lower than or flush with the front surface of the laminate 30. The plugging portion 22 protrudes from the bottom surface of the clamping portion 18, and the plugging portion 22 is inserted into the card slot 181. Correspondingly, in an embodiment, the plugging portion 22 can also be obliquely arranged, and the included angle between the plugging portion 22 and the bottom surface of the clamping portion 21 is greater than 0° and less than 90°. For example, the included angle between the plugging portion 22 and the bottom surface of the clamping portion 21 is 30°, 45°, 60°, 75°, 80°, etc., which are not limited herein.

[0063] See Figure 5 and Figure 8 , optionally, in an embodiment, the plugging portion 22 is provided with a first limiting portion 221, and the groove wall of the card slot 181 is provided with a second limiting portion 182 that is in limiting cooperation with the first limiting portion 221, so as to improve the stability of the plugging portion 22 inserted into the card slot 181 and prevent the limiting member 20 from easily detaching from the frame body 10. Exemplarily, in an embodiment, the first limiting portion 221 can be a tooth pattern provided on the plugging portion 22, and the second limiting portion 182 can be a protrusion provided on the groove wall of the card slot 181. By engaging the tooth pattern with the protrusion, the plugging portion 22 can be limited in the card slot 181. Further, in Figure 5In the illustrated embodiment, the tooth pattern is provided on one side of the insertion portion 22, and the protrusion is correspondingly provided on one side wall of the card slot 181. In other embodiments, tooth patterns may also be provided on both sides of the insertion portion 22. Correspondingly, protrusions for engaging with the tooth patterns are provided on both side walls of the card slot 181, thereby further improving the installation stability of the limiting member 20.

[0064] It can be understood that in other embodiments, the first limiting portion 221 and the second limiting portion 182 may also be in the form of a male buckle and a female buckle that are engaged with each other, or a boss and a groove that are embedded in each other, etc., which are not limited herein.

[0065] Continue to refer to Figure 1 , a laminate 30 of an embodiment includes a back cover plate 31, a battery string 32, and a front cover plate 33 that are stacked. Exemplarily, when the photovoltaic module is in normal use, the front cover plate 33 usually faces away from the ground, so that more sunlight can be received to a greater extent. Further, the front cover plate 33 is a light-transmitting plate, such as a glass plate, etc., so that sunlight can pass through the front cover plate 33 and irradiate the battery string 32, thereby realizing power generation. In addition, when the photovoltaic module is in normal use, the back cover plate 31 usually faces the ground. Therefore, the back cover plate 31 can be either a light-transmitting plate or an opaque plate, which is not limited herein. Further, encapsulation adhesive films (not shown) are provided on both sides of the battery string 32. During lamination, the encapsulation adhesive films are melted and adhered to bond the back cover plate 31 and the front cover plate 33, and encapsulate the battery string 32.

[0066] Combined with Figure 5 , in one embodiment, a first limiting groove 211 and a second limiting groove 212 are provided on one side of the clamping portion 21 facing the supporting portion 15. The first limiting groove 211 and the second limiting groove 212 are spaced along the height direction of the frame. The first limiting groove 211 is used to accommodate the side edge of the front cover plate 33 of the laminate 30, and the second limiting groove 212 is used to accommodate the side edge of the back cover plate 31 of the laminate 30. By accommodating the side edge of the front cover plate 33 of the laminate 30 in the first limiting groove 211 and the side edge of the back cover plate 31 of the laminate 30 in the second limiting groove 212, the clamping portion 21 can exert a downward binding force on the laminate 30, preventing the laminate 30 from detaching from the frame and improving the stability of the photovoltaic module.

[0067] Continue to refer to Figure 5, the first limiting groove 211 and the second limiting groove 212 are both arc-shaped grooves. Specifically, the sides of the front cover plate 33 and the back cover plate 31 of the laminate 30 are usually arc-shaped surfaces. By configuring both the first limiting groove 211 and the second limiting groove 212 as arc-shaped grooves, it can ensure that the groove wall of the first limiting groove 211 fits the side of the front cover plate 33, and the groove wall of the second limiting groove 212 fits the side of the back cover plate 31, improving the limiting effect of the clamping portion 21 on the laminate 30, and at the same time improving the sealing performance between the clamping portion 21 and the laminate 30.

[0068] See Figure 1 , optionally, in an embodiment, the side of the back cover plate 31 protrudes from the side of the front cover plate 33. Exemplarily, the center of the back cover plate 31 is aligned with the center of the front cover plate 33, and the width of the back cover plate 31 is greater than the width of the front cover plate 33, etc., and the length of the back cover plate 31 is greater than the length of the front cover plate 33, so that the side of the back cover plate 31 protrudes from the side of the front cover plate 33 in the laminate 30.

[0069] Correspondingly, combined with Figure 5 , the depth of the second limiting groove 212 is greater than the depth of the first limiting groove 211, so as to ensure that the contour of the side of the clamping portion 21 facing the laminate 30 matches the side contour of the laminate 30. While the groove wall of the first limiting groove 211 fits the side of the front cover plate 33, it is ensured that the groove wall of the second limiting groove 212 can also fit the side of the back cover plate 31. Further, a protruding portion 213 is provided protruding between the first limiting groove 211 and the second limiting groove 212. The protruding portion 213 is used to be inserted between the front cover plate 33 and the back cover plate 31, and the protruding portion 213 is used to abut and cooperate with the side of the back cover plate 31 close to the front cover plate 33. In this way, the groove wall of the first limiting groove 211, the groove wall of the second limiting groove 212, and the protruding portion 213 simultaneously limit the laminate 30, further improving the limiting effect on the laminate 30 and preventing the laminate 30 from detaching from the frame.

[0070] See Figure 2 , in another embodiment, the side of the back cover plate 31 and the side of the front cover plate 33 may also be flush. Exemplarily, the center of the back cover plate 31 is aligned with the center of the front cover plate 33, and the width of the back cover plate 31 is equal to the width of the front cover plate 33, and the length of the back cover plate 31 is equal to the length of the front cover plate 33, so that the side of the back cover plate 31 is flush with the side of the front cover plate 33.

[0071] Correspondingly, combined with Figure 6The depth of the second limiting groove 212 is equal to the depth of the first limiting groove 211, so as to ensure that the contour of the clamping portion 21 facing the laminate 30 matches the side contour of the laminate 30. While the groove wall of the first limiting groove 211 fits the side of the front cover 33, it is ensured that the groove wall of the second limiting groove 212 can also fit the side of the back cover 31. At this time, the groove wall of the first limiting groove 211 and the groove wall of the second limiting groove 212 simultaneously limit the laminate 30 and prevent the laminate 30 from detaching from the frame.

[0072] Alternatively, see Figure 7 a. In one embodiment, a side of the holding portion 21 facing away from the frame body 10, that is, the top side of the holding portion 21, is formed with a slope surface 215, and the height of the slope surface 215 gradually decreases in a direction away from the laminate 30. In this way, when there is rainwater on the front of the laminate 30, the rainwater can quickly flow out of the front of the laminate 30 along the slope surface 215, further preventing dust and dirt in the rainwater from remaining on the front of the laminate 30.

[0073] Alternatively, see Figure 7 b. In one embodiment, a hollow cavity 216 is provided inside the clamping portion 21. Specifically, the hollow cavity 216 may penetrate the outer wall of the clamping portion 21, or may not penetrate the clamping portion 21. By providing the hollow cavity 216 inside the clamping portion 21, the material cost of the limiter 20 can be reduced, and the weight of the limiter 20 can also be reduced, so that the handling and installation of the limiter 20 are facilitated.

[0074] See also Figure 8 A glue coating groove 161 is formed between the positioning portion 17 and the supporting portion 15. Figure 10 The glue coating groove 161 is used to accommodate the sealant 40. After being squeezed, the sealant 40 can fill the gap between the laminate 30, the frame body 10 and the stopper 20. After the sealant 40 is cured, the connection stability and sealing of the laminate 30, the frame body 10 and the stopper 20 can be improved.

[0075] Optionally, in one embodiment, the width of the glue coating groove 161 gradually decreases along the depth direction of the glue coating groove 161. For example, the glue coating groove 161 can be an inverted trapezoidal, U-shaped, jar-shaped or other special-shaped groove shapes, that is, the glue coating groove 161 is designed to be wide at the top and narrow at the bottom. On the one hand, this can increase the capacity of the sealant 40 that the glue coating groove 161 can accommodate. On the other hand, the larger groove can also increase the contact area between the sealant 40 and the laminate 30, thereby improving the sealing effect of the sealant 40 on the laminate 30.

[0076] Continue to see Figure 8, Further, an overflow glue groove 162 for accommodating overflowed glue is further provided between the positioning portion 17 and the clamping portion 18, and the glue application groove 161, the overflow glue groove 162, and the clamping groove 181 are sequentially arranged at intervals along the direction from the support portion 15 to the clamping portion 18. Specifically, when the sealant 40 in the glue application groove 161 is extruded and overflows outward, the overflowed sealant 40 can enter the overflow glue groove 162. When the overflow glue groove 162 is full, the overflowed sealant 40 can also enter the clamping groove 181, thus forming a double anti-overflow glue guarantee to prevent the overflowed sealant 40 from flowing out to the outer side wall 12 of the frame body 10.

[0077] Optionally, the specific shape of the overflow glue groove 162 can be L-shaped, rectangular, square, circular, oval or triangular, etc., which is not limited here.

[0078] Optionally, in an embodiment, the height by which the support portion 15 protrudes from the frame body 10 is not lower than the height by which the positioning portion 17 protrudes from the frame body 10. Specifically, as Figure 8 shown, the height of the support portion 15 is higher than or flush with the height of the positioning portion 17. By configuring the height of the support portion 15 to be higher than or flush with the height of the positioning portion 17, on the one hand, it can enable the support portion 15 to block the sealant 40 before the sealant 40 enters the overflow glue groove 162, ensure that the sealant 40 can enter the overflow glue groove 162 from the clamping groove 181, and prevent the sealant 40 from directly overflowing to the outer side wall 12 of the frame body 10, thereby reducing the occurrence of glue overflow; on the other hand, it can also avoid the positioning portion 17 from blocking the limiting member 20 and prevent the positioning member from hindering the side clamping fit between the limiting member 20 and the lamination member 30.

[0079] Continue to refer to Figure 8 , in an embodiment, a concave arc surface 171 is formed at one end of the positioning portion 17 facing away from the frame body 10, and the height of the concave arc surface 171 gradually decreases along the direction from the clamping portion 18 to the support portion 15. Specifically, the concave arc surface 171 can better fit the arc-shaped side of the back cover plate 31 of the lamination member 30, improve the positioning effect on the lamination member 30. At the same time, when the sealant 40 overflows from the notch of the glue application groove 161, the concave arc surface 171 can also guide the overflowed sealant 40 onto the side of the lamination member 30, improving the sealing effect on the side of the lamination member 30.

[0080] Combined with Figure 1 and Figure 5, in one embodiment, on one side of the clamping portion 21 of the limiting member 20 in contact with the clamping portion 18, there is a first concave-convex portion 214, and the first concave-convex portion 214 has a concave-convex structure. The first concave-convex portion 214 can increase the friction between the clamping portion 21 and the clamping portion 18, thereby enhancing the stability of the limiting member 20. At the same time, when the sealant 40 overflows between the clamping portion 21 and the clamping portion 18, the first concave-convex portion 214 can accommodate part of the sealant 40. After the sealant 40 cures, it can adhere the clamping portion 21 and the clamping portion 18, further enhancing the connection stability between the clamping portion 21 and the clamping portion 18. In addition, the first concave-convex portion 214 can also prevent the sealant 40 from further overflowing outward, reducing the amount of sealant 40 that overflows to the outer side wall 12 of the frame body 10. Exemplarily, the first concave-convex portion 214 includes a plurality of grooves, and the plurality of grooves are arranged at intervals along the direction from the glue application groove 161 to the card slot 181.

[0081] It can be understood that in other embodiments, a first concave-convex portion 214 may also be provided on one side of the clamping portion 18 in contact with the clamping portion 21. In this way, it can also achieve the effect of enhancing the stability of the limiting member 20 and preventing glue overflow, which will not be elaborated here.

[0082] Continue to refer to Figure 8 , the supporting portion 15 includes a bearing surface for bearing the laminate 30, and the bearing surface is provided with a second concave-convex portion 151, and the second concave-convex portion 151 has a concave-convex structure. Through the second concave-convex portion 151, the friction between the bearing surface and the laminate 30 can be increased, thereby enhancing the stability of the laminate 30. At the same time, when the sealant 40 overflows between the bearing surface and the laminate 30, the second concave-convex portion 151 can accommodate part of the sealant 40. After the sealant 40 cures, it can adhere the bearing surface and the laminate 30, improving the connection stability between the bearing surface and the laminate 30. In addition, the second concave-convex portion 151 can also hinder the flow of the sealant 40, reducing the amount of sealant 40 that overflows to the back surface of the laminate 30. Exemplarily, the second concave-convex portion 151 includes a plurality of grooves, and the plurality of grooves are arranged at intervals along the direction away from the glue application groove 161.

[0083] Furthermore, at one end of the bearing surface away from the glue application groove 161, there is also a blocking member 152, and the blocking member 152 protrudes from the bearing surface. The blocking member 152 is used for fitting and cooperating with the back surface of the laminate 30. Exemplarily, the blocking member 152 is located on the side of the second concave-convex portion 151 away from the glue application groove 161. By fitting the blocking member 152 with the back surface of the laminate 30, the sealant 40 can be further blocked from overflowing to the back surface of the laminate 30. Exemplarily, the blocking member 152 includes a colloid member, and the colloid member can fit more closely to the back surface of the laminate 30 to prevent glue overflow.

[0084] Refer to Figure 1 and Figure 2, in one embodiment, the frame body 10 includes a mounting wall 11, an outer side wall 12 connected to one end of the mounting wall 11, an inner side wall 13 connected to the other end of the mounting wall 11, and a bottom wall 14 disposed opposite to the mounting wall 11 and connecting the outer side wall 12 and the inner side wall 13. The clamping portion 18, the positioning portion 17, and the supporting portion 15 all protrude from the mounting wall 11, and the clamping portion 18, the positioning portion 17, and the supporting portion 15 are sequentially spaced along the direction from the outer side wall 12 to the inner side wall 13, that is, the clamping portion 18 is located outside the positioning portion 17, and the supporting portion 15 is located inside the positioning portion 17. Further, the mounting wall 11, the outer side wall 12, the inner side wall 13, and the bottom wall 14 together enclose a closed first cavity 191. The first cavity 191 can reduce the material cost of the frame body 10, and at the same time can also reduce the weight of the frame body 10, which is convenient for the handling and installation of the frame body 10.

[0085] See Figure 3 and Figure 4 , in another embodiment, the frame body 10 includes a mounting wall 11, an outer side wall 12 connected to one end of the mounting wall 11, an inner side wall 13 connected to the other end of the mounting wall 11. The clamping portion 18, the positioning portion 17, and the supporting portion 15 all protrude from the mounting wall 11, and the clamping portion 18, the positioning portion 17, and the supporting portion 15 are sequentially spaced along the direction from the outer side wall 12 to the inner side wall 13, that is, the clamping portion 18 is located outside the positioning portion 17, and the supporting portion 15 is located inside the positioning portion 17. The mounting wall 11, the outer side wall 12, and the inner side wall 13 enclose a second cavity 192 with an opening 193, and the opening 193 is disposed opposite to the mounting wall 11. The second cavity 192 can also reduce the material cost of the frame body 10 and reduce the weight of the frame body 10. In addition, when the photovoltaic module needs to be installed on the cross beam, the cross beam can be directly clamped into the second cavity 192 by using the opening 193, so that the frame can be fixed on the cross beam without using a pressing block, which simplifies the installation process of the photovoltaic module and improves the installation efficiency.

[0086] See Figure 1 , optionally, in one embodiment, the side of the clamping portion 18 facing away from the positioning portion 17 is flush with the outer side wall 12 of the frame body 10, so as to ensure the smooth and beautiful appearance of the frame.

[0087] See Figure 9 , in another embodiment, the side of the clamping portion 18 facing away from the positioning portion 17 can also protrude from the outer side wall 12 of the frame body 10, that is, the outer side wall 12 of the frame body 10 is indented inward relative to the clamping portion 18. In this way, the outer side wall 12 of the frame body 10 can be closer to the center of gravity of the mounting wall 11, so that the outer side wall 12 can better support the mounting wall 11 and the structures on the mounting wall 11, and improve the stability of the photovoltaic module.

[0088] An embodiment of the present application further provides an assembling method for a photovoltaic module, which is used to assemble the photovoltaic module in any of the above embodiments. Specifically, the assembling method for the photovoltaic module in an embodiment includes the following steps:

[0089] S120: Refer to Figure 10 b, Place the laminate 30 on the support portion 15 of the frame from top to bottom, and make the side surface of the laminate 30 abut against the positioning portion 17;

[0090] Specifically, in the conventional assembling process of a photovoltaic module, the laminate 30 usually needs to be inserted horizontally between the A surface and the E surface of the frame. During this process, the laminate 30 or the frame is easily squeezed and burst. In this application, by placing the laminate 30 on the support portion 15 of the frame from top to bottom, the laminate 30 is prevented from being squeezed during the assembling process, reducing the risk of bursting of the laminate 30. At the same time, the convenience of placing the laminate 30 is also improved. By making the side surface of the laminate 30 abut against the positioning portion 17 to position the laminate 30, the placement position of the laminate 30 is ensured to be accurate, further improving the convenience of placing the laminate 30.

[0091] S130: Refer to Figure 10 c, Insert the limiting member 20 into the card slot 181, and make the limiting member 20 cooperate with the side of the laminate 30 in a limiting manner.

[0092] Specifically, in an embodiment, the card slot 181 can extend obliquely towards the positioning portion 17. In this way, when inserting the limiting member 20, the limiting member 20 can be inserted obliquely from top to bottom along the depth direction of the card slot 181 into the card slot 181 of the frame body 10, avoiding the vertical extrusion of the laminate 30 caused by the vertical insertion of the limiting member 20, and thus reducing the risk of bursting of the laminate 30.

[0093] Refer to Figure 10 a, Optionally, in an embodiment, the following steps are further included before step S120:

[0094] S110: Fill the sealing glue 40 in the glue application groove 161 of the frame body 10.

[0095] Specifically, by filling the sealing glue 40 in the glue application groove 161, after placing the laminate 30 on the support portion 15 and installing the limiting member 20 on the frame body 10, the sealing glue 40 can adhere the laminate 30, the frame body 10 and the limiting member 20, improving the connection stability and sealing performance between the laminate 30 and the frame body 10 and the limiting member 20.

[0096] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the various technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as falling within the scope described in this specification.

[0097] The above-described embodiments merely represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A frame, used to surround the periphery of a laminate (30), characterized in that: include: A frame body (10), wherein a support portion (15), a positioning portion (17) and a clamping portion (18) are protrudingly provided on one side of the frame body (10), wherein the support portion (15) is used to support the laminate (30), the positioning portion (17) is provided between the support portion (15) and the clamping portion (18), the positioning portion (17) is used to abut against a side surface of the laminate (30) to position the laminate (30), and the clamping portion (18) is provided with a clamping groove (181); and A limiting member (20), the limiting member (20) being snap-engaged in the snap-engagement slot (181), the limiting member (20) being used to abut against a side surface of the laminate (30) and to limit the position of the laminate (30) in the thickness direction of the laminate (30), and in the thickness direction of the laminate (30), the limiting member (20) is lower than or flush with the front surface of the laminate (30).

2. The frame according to claim 1, characterized in that: The limiting member (20) comprises: a clamping portion (21), the clamping portion (21) being supported and matched with an end of the clamping portion (18) facing away from the frame body (10), and the clamping portion (21) being used for limiting and matching with a side surface of the laminate (30), and in a thickness direction of the laminate (30), an end of the clamping portion (21) facing away from the clamping portion (18) is lower than or flush with a front surface of the laminate (30); An inserting portion (22), the inserting portion (22) being protrudingly arranged on the bottom surface of the clamping portion (18), and the inserting portion (22) being inserted into the clamping slot (181).

3. The frame according to claim 2, characterized in that: A first limiting groove (211) and a second limiting groove (212) are provided on one side of the clamping portion (21) facing the supporting portion (15); the first limiting groove (211) and the second limiting groove (212) are arranged at intervals along the thickness direction of the laminate (30); the first limiting groove (211) is used to accommodate a side edge of a front cover plate (33) of the laminate (30); and the second limiting groove (212) is used to accommodate a side edge of a back cover plate (31) of the laminate (30).

4. The frame according to claim 3, characterized in that: The first limiting groove (211) and the second limiting groove (212) are both arc-shaped grooves.

5. The frame according to claim 3, characterized in that: The depth of the second limiting groove (212) is equal to the depth of the first limiting groove (211); or, The depth of the second limiting groove (212) is greater than the depth of the first limiting groove (211); a protruding portion (213) is provided between the first limiting groove (211) and the second limiting groove (212); the protruding portion (213) is used to be inserted between the front cover plate (33) and the back cover plate (31); and the protruding portion (213) is used to abut against a side of the back cover plate (31) close to the front cover plate (33).

6. The frame according to claim 2, characterized in that: A slope surface (215) is formed on a side of the clamping portion (21) facing away from the frame body (10), and the height of the slope surface (215) gradually decreases in a direction away from the laminate (30); and / or, The interior of the clamping portion (21) is provided with a hollow cavity (216); and / or, The plug-in portion (22) is provided with a first limiting portion (221), and the slot wall of the clamping slot (181) is provided with a second limiting portion (182) that cooperates with the first limiting portion (221) in limiting manner.

7. The frame according to claim 1, characterized in that: The card slot (181) is provided on a side of the card connection portion (18) away from the frame body (10), and the card slot (181) extends obliquely towards a direction close to the positioning portion (17).

8. The frame according to claim 1, characterized in that: A concave arc surface (171) is formed at one end of the positioning portion (17) away from the frame body (10), and the height of the concave arc surface (171) gradually decreases along the direction from the clamping portion (18) to the supporting portion (15).

9. The frame according to claim 1, characterized in that: A glue coating groove (161) for accommodating the sealant (40) is formed between the positioning portion (17) and the supporting portion (15), and a glue overflow groove (162) for accommodating overflow glue is formed between the positioning portion (17) and the clamping portion (18). The glue coating groove (161), the glue overflow groove (162) and the clamping groove (181) are arranged in sequence and spaced apart in a direction from the supporting portion (15) to the clamping portion (18).

10. The frame according to claim 9, characterized in that: The height of the positioning portion (17) protruding from the frame body (10) is not less than the height of the clamping portion (18) protruding from the frame body (10).

11. The frame according to claim 9, characterized in that: The clamping portion (18) is also supported and matched with the limiting member (20), and at least one of the contact surfaces of the clamping portion (18) and the limiting member (20) is provided with a first concave-convex portion (214), and the first concave-convex portion (214) is a concave-convex structure; and / or, The support portion (15) comprises a bearing surface for bearing the laminate (30); the bearing surface is provided with a second concave-convex portion (151), and the second concave-convex portion (151) is a concave-convex structure; and / or, A blocking member (152) is provided at one end of the bearing surface away from the glue coating groove (161), the blocking member (152) protruding from the bearing surface, and the blocking member (152) is used to fit with the back surface of the laminate (30).

12. The frame according to claim 1, characterized in that: The frame body (10) comprises a mounting wall (11), an outer wall (12) connected to one end of the mounting wall (11), an inner wall (13) connected to the other end of the mounting wall (11), and a bottom wall (14) arranged opposite to the mounting wall (11) and connecting the outer wall (12) and the inner wall (13); the clamping portion (18), the positioning portion (17) and the supporting portion (15) are all protrudingly arranged on the mounting wall (11); and the clamping portion (18), the positioning portion (17) and the supporting portion (15) are sequentially spaced from the outer wall (12) to the inner wall (13); the mounting wall (11), the outer wall (12), the inner wall (13) and the bottom wall (14) together enclose a closed first cavity (191); or, The frame body (10) comprises the mounting wall (11), an outer wall (12) connected to one end of the mounting wall (11), and an inner wall (13) connected to the other end of the mounting wall (11); the clamping portion (18), the positioning portion (17) and the supporting portion (15) are all protrudingly arranged on the mounting wall (11); and the clamping portion (18), the positioning portion (17) and the supporting portion (15) are sequentially spaced from the outer wall (12) to the inner wall (13); the mounting wall (11), the outer wall (12) and the inner wall (13) are surrounded to form a second cavity (192) having an opening (193); and the opening (193) is arranged opposite to the mounting wall (11).

13. A photovoltaic module, characterized in that: The invention comprises a laminate (30) and a frame according to any one of claims 1 to 12, wherein the laminate (30) is arranged on the support portion (15), the side surface of the laminate (30) is limitedly matched with the limiting member (20), and the front surface of the laminate (30) is higher than or flush with the limiting member (20).

14. The photovoltaic module according to claim 13, characterized in that: The laminate (30) comprises a back cover plate (31), a battery string (32) and a front cover plate (33) which are stacked; Wherein, the side edge of the back cover plate (31) is arranged flush with the side edge of the front cover plate (33); or, the side edge of the back cover plate (31) protrudes from the side edge of the front cover plate (33).

15. A method for assembling a photovoltaic module according to claim 14 or 15, characterized in that: The following steps are involved: Placing the laminate (30) from top to bottom on the support portion (15) of the frame, and making the side surface of the laminate (30) abut against the positioning portion (17); The limiting member (20) is inserted into the clamping groove (181), and the limiting member (20) is matched with the side edge of the laminate (30) in a limiting manner.

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