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 main body and a limiting piece, the frame main body is provided with a supporting part and a clamping part in a protruding manner, the supporting part and the clamping part are arranged on the same side of the frame main body at an interval, the supporting part is used for supporting a laminated piece, and the clamping part is used for clamping the laminated piece. A clamping groove is formed in the end, back on to the frame body, of the clamping part, and the clamping groove obliquely extends in the direction close to the supporting part. The limiting piece is clamped in the clamping groove, the limiting piece is supported and matched at the end, away from the frame body, of the clamping part, 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] The present application relates to the technical field of solar cells, in particular to a frame, a photovoltaic module, and an assembly method of the photovoltaic module. Background Art

[0002] A photovoltaic module is one of the core components of a solar cell. A photovoltaic module generally includes a laminate and a frame. Among them, the laminate includes a back glass, a battery string, and a front glass which are stacked. The frame surrounds the periphery of the laminate, and functions to increase the strength of the photovoltaic module and further seal the photovoltaic module.

[0003] Currently, a conventional frame usually has an A surface which presses against the top of the laminate to limit the laminate. After the photovoltaic module is exposed to wind, sun, rain, etc., due to the blocking effect of the A surface of the frame, it is easy to cause dust particles to accumulate on the front surface of the laminate, thereby affecting the power generation efficiency of the photovoltaic module. With the development of solar cell technology, some photovoltaic modules begin to use frames without an A surface. However, after removing the A surface of the frame, although the dust accumulation problem of the photovoltaic module can be reduced to a certain extent, due to the lack of the limiting effect of the A surface of the frame, the laminate is likely to fall off from the frame, resulting in an unstable structure of the photovoltaic module. 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, the present application provides a frame for surrounding the periphery of a laminate, including:

[0006] A frame body, on which a support portion and a clamping portion are protrudingly provided. The support portion and the clamping portion are spaced apart on the same side of the frame body. The support portion is used to support the laminate, and a clamping groove is formed at one end of the clamping portion facing away from the frame body, and the clamping groove extends obliquely in a direction approaching the support portion; and

[0007] A limiting member which is clamped in the clamping groove, and the limiting member is supported and cooperated with one end of the clamping portion facing away from the frame body. The limiting member is used for limiting and cooperating with the side surface of the laminate, and 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 solutions are further described below:

[0009] In one embodiment, the limiting member includes:

[0010] A clamping part, the clamping part abuts against one end of the clamping joint part away from the frame body, and the clamping part is used for limiting and cooperating with the side surface of the laminate. In the thickness direction of the laminate, one end of the clamping part away from the clamping joint part is lower than or flush with the front surface of the laminate;

[0011] A plugging part, one end of the plugging part is connected to the clamping part, and the other end of the plugging part extends obliquely towards the side of the supporting part.

[0012] In one embodiment, a first limiting groove and a second limiting groove are provided on one side of the clamping part facing the supporting part. 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 part is provided between the first limiting groove and the second limiting groove. The protruding part is used for being inserted between the front cover plate and the back cover plate, and the protruding part 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 part 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 part; and / or,

[0018] The plugging part is provided with a first limiting part, and the groove wall of the clamping groove is provided with a second limiting part for limiting and cooperating with the first limiting part.

[0019] In one embodiment, the clamping joint part includes a blocking wall and a partition wall. The partition wall is located between the blocking wall and the supporting part. A clamping groove is formed between the partition wall and the blocking wall, and a glue application groove is formed between the partition wall and the supporting part.

[0020] In one embodiment, the partition wall includes a partition portion for partitioning the glue application groove and the card slot, and an extension portion for supporting the limiting member. One end of the extension portion is connected to the partition portion, and the other end of the extension portion extends towards the support portion and is used for abutting and cooperating with the side surface of the laminate.

[0021] In one embodiment, a concave arc surface is provided at one end of the extension portion facing away from the partition portion; and / or,

[0022] At least one of the contact surfaces of the extension portion and the limiting member is provided with a first concave-convex portion, and the first concave-convex portion has a concave-convex structure.

[0023] In one embodiment, the frame body is further provided with an overflow glue groove, and the overflow glue groove is communicated with the bottom of the card slot; and / or,

[0024] The height by which the blocking wall protrudes from the frame body is not less than the height by which the partition wall protrudes from the frame body.

[0025] In one embodiment, the support portion includes a bearing surface for bearing the laminate; wherein,

[0026] The bearing surface is provided with a second concave-convex portion, and the second concave-convex portion has a concave-convex structure; and / or,

[0027] A blocking member is provided at one end of the bearing surface away from the clamping portion, the blocking member protrudes from the bearing surface, and the blocking member is used for fitting and cooperating with the back surface of the laminate.

[0028] 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 disposed opposite to the mounting wall and connecting the outer side wall and the inner side wall. The clamping portion and the support portion both protrude from the mounting wall, and the clamping portion and the support portion are sequentially spaced 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,

[0029] 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 and the support portion both protrude from the mounting wall, and the clamping portion and the support portion are sequentially spaced 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 disposed opposite to the mounting wall.

[0030] In one embodiment, the side of the clamping portion facing away from the supporting portion is flush with or protrudes from the outer side wall.

[0031] In a second aspect, the present application provides a photovoltaic module, including a laminate and the above-mentioned frame. The laminate is disposed on the supporting portion, and the side surface of the laminate is in limiting cooperation with the limiting member, and the front surface of the laminate is higher than or flush with the limiting member.

[0032] In one embodiment, the laminate includes a back cover plate, a battery string, and a front cover plate stacked together;

[0033] 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.

[0034] In a third aspect, the present application further provides an assembling method for the above-mentioned photovoltaic module, including the following steps:

[0035] Place the laminate on the supporting portion of the frame from top to bottom;

[0036] Insert the limiting member into the card slot along the depth direction of the card slot, and make the limiting member in limiting cooperation with the side of the laminate.

[0037] In the above-mentioned frame and photovoltaic module, the frame is configured as a split frame body and a limiting member. By providing a supporting portion and a clamping portion on the frame body, the supporting portion can support the laminate, and the card slot on the clamping portion is inserted and matched with the limiting member, so that the limiting member can be fixed on the frame body. The limiting member is then in limiting cooperation with the laminate, and thus the laminate can be fixed 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, it avoids 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 quickly along with the rainwater scouring, thereby reducing the phenomenon of dust accumulation on the front surface of the photovoltaic module while ensuring the structural stability of the photovoltaic module, and improving the power generation efficiency of the photovoltaic module.

[0038] At the same time, since the frame body and the limiting member are of a split design, when assembling the photovoltaic module, the laminate can be placed on the supporting portion of the frame from top to bottom first, and then the limiting member can be installed on the frame body. In this way, the laminate is avoided from being squeezed during the assembling process, reducing the risk of the laminate bursting, and also improving the convenience of assembling the photovoltaic module.

[0039] Furthermore, since the card slot is inclined towards the inner side wall, when installing the limiting member, the limiting member can be inserted into the card slot of the frame body obliquely from top to bottom along the depth direction of the card slot, avoiding the vertical extrusion of the laminated part caused by the vertical insertion of the limiting member, and further reducing the risk of explosion of the laminated part. After the limiting member is inserted into the card slot, the inclined card slot can also ensure that the limiting member is not easily detached in the vertical direction, thereby improving the limiting stability of the limiting member to the laminated part. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The drawings forming 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 of this application.

[0041] In order to more clearly illustrate the technical solutions in the embodiments of this application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0042] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the respective elements are only schematically drawn in the drawings and not necessarily drawn to the actual scale. In the drawings:

[0043] Figure 1 It is a cross-sectional schematic view of a photovoltaic module according to an embodiment.

[0044] Figure 2 It is a cross-sectional schematic view of a photovoltaic module according to another embodiment.

[0045] Figure 3 It is a cross-sectional schematic view of a photovoltaic module according to yet another embodiment.

[0046] Figure 4 It is a cross-sectional schematic view of a photovoltaic module according to still another embodiment.

[0047] Figure 5 It is a structural schematic view of a limiting member according to an embodiment.

[0048] Figure 6 It is a structural schematic view of a limiting member according to another embodiment.

[0049] Figure 7 It is a result schematic view of a limiting member according to other embodiments.

[0050] Figure 8 It is a cross-sectional schematic view of a frame body according to an embodiment.

[0051] Figure 9 It is a cross-sectional schematic view of a frame body according to some embodiments.

[0052] Figure 10 Cross-sectional schematic diagram of the frame body for other embodiments.

[0053] Figure 11 Schematic diagram of the assembly process of a photovoltaic module according to an embodiment.

[0054] Description of reference numerals:

[0055] 10. Frame body; 11. Installation wall; 12. Outer wall; 13. Inner wall; 14. Bottom wall; 15. Support part; 151. Second concave-convex part; 152. Blocking part; 16. Clamping part; 161. Card slot; 162. Glue application groove; 163. Glue overflow groove; 164. Second limiting part; 17. Partition wall; 171. Partition part; 172. Extension part; 173. Concave arc surface; 18. Blocking wall; 191. First cavity; 192. Second cavity; 193. Opening; 20. Limiting part; 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 manners

[0056] To make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description 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.

[0057] In the description of the present application, it should be understood that if terms such as "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 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 should not be construed as a limitation of the present application.

[0058] In addition, if the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0059] In this application, unless otherwise clearly specified and defined, 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 defined. 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.

[0060] In this application, unless otherwise clearly specified and defined, if there is a description such as a first feature being "on" or "under" a second feature, its meaning can be that the first and second features are in direct contact, or the first and second features are in indirect 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 indicates that the first feature has a higher horizontal height 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 indicates that the first feature has a lower horizontal height than the second feature.

[0061] It should be noted that if an element is referred to as being "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.

[0062] 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, refer to Figure 1, the frame of an embodiment includes a frame body 10 and a limiting member 20. The frame body 10 is protrudingly provided with a support portion 15 and a clamping portion 16. The support portion 15 and the clamping portion 16 are spaced apart and arranged on the same side of the frame body 10. The support portion 15 is used to support the laminate 30. One end of the clamping portion 16 facing away from the frame body 10 is provided with a clamping groove 161, and the clamping groove 161 extends obliquely towards the direction close to the support portion 15. The limiting member 20 is clamped in the clamping groove 161, and the limiting member 20 is supported and cooperated with one end of the clamping portion 16 facing away from the frame body 10. 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.

[0063] Continue to refer to Figure 1 , the second aspect of the present application further provides a photovoltaic module. A photovoltaic module of an embodiment includes a laminate 30 and the above-mentioned frame. The laminate 30 is arranged on the support portion 15, and the side surface of the laminate 30 is in limiting cooperation with the limiting member 20. The front surface of the laminate 30 is higher than or flush with the limiting member 20.

[0064] 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 and a clamping portion 16 on the frame body 10, the support portion 15 can support the laminate 30, and by using the clamping groove 161 on the clamping portion 16 to be inserted and cooperated with the limiting member 20, the limiting member 20 can be fixed on the frame body 10, and then the limiting member 20 is in limiting cooperation with the laminate 30, so that the laminate 30 can be fixed on the frame. And because the limiting member 20 is in limiting cooperation with the side surface of the laminate 30, and at the same time the limiting member 20 is lower than or flush with the front surface of the laminate 30, thus avoiding the limiting member 20 from blocking the front surface of the laminate 30, ensuring that the dust falling on the front surface of the laminate 30 can quickly flow out of the front surface of the laminate 30 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.

[0065] 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 first, and then the limiting member 20 is installed on the frame body 10. In this way, it is avoided that the laminate 30 is squeezed during the assembly process, reducing the risk of the laminate 30 bursting, and also improving the convenience of assembling the photovoltaic module.

[0066] Furthermore, since the slot 161 is tilted toward the inner side wall 13, when installing the stopper 20, the stopper 20 can be inserted into the slot 161 of the frame body 10 tilted from top to bottom along the depth direction of the slot 161, thereby avoiding vertical extrusion of the laminate 30 by the vertical insertion of the stopper 20, and further reducing the risk of the laminate 30 exploding. After the stopper is inserted into the slot 161, the tilted slot 161 can also ensure that the stopper 20 is not easy to fall off in the vertical direction, thereby improving the stability of the stopper 20 on the laminate 30.

[0067] Specifically, combined Figure 1 as well as Figure 5 In one embodiment, the limiting member 20 includes a clamping portion 21 and a plug-in portion 22. The clamping portion 21 abuts against the end of the clamping portion 16 that is away from the frame body 10, and the clamping portion 21 is used to cooperate with the side of the laminate 30. In the thickness direction of the laminate 30, the end of the clamping portion 21 that is away from the clamping portion 16 is lower than or flush with the front of the laminate 30. One end of the plug-in portion 22 is connected to the clamping portion 21, and the other end of the plug-in portion 22 extends obliquely toward the side of the support portion 15. Exemplarily, one end of the plug-in portion 22 is connected to the bottom surface of the clamping portion 21, and the angle between the plug-in portion 22 and the bottom surface of the clamping portion 21 is greater than 0° and less than 90°. For example, the angle between the plug-in portion 22 and the bottom surface of the clamping portion 21 is 30°, 45°, 60°, 75°, 80°, etc., which is not limited here.

[0068] See also Figure 5 as well as Figure 8 Optionally, in one embodiment, the plug-in portion 22 is provided with a first limiting portion 221, and the groove wall of the card slot 161 is provided with a second limiting portion 164 that cooperates with the first limiting portion 221 to limit the plug-in portion 22. This improves the stability of the plug-in portion 22 inserted in the card slot 161 and prevents the limiting member 20 from easily separating from the frame body 10. Exemplarily, in one embodiment, the first limiting portion 221 can be a tooth pattern provided on the plug-in portion 22, and the second limiting portion 164 can be a protrusion provided on the groove wall of the card slot 161. The plug-in portion 22 can be limited in the card slot 161 by the tooth pattern and the protrusion being engaged. Further, in Figure 5 In the illustrated embodiment, the tooth pattern is provided on one side of the plug-in portion 22, and the protrusion is correspondingly provided on one side of the groove wall of the slot 161. In other embodiments, the tooth pattern may be provided on both sides of the plug-in portion 22, and correspondingly, the groove walls on both sides of the slot 161 may be provided with protrusions that engage with the tooth pattern, thereby further improving the installation stability of the limiter 20.

[0069] It is understandable that in other embodiments, the first limiting portion 221 and the second limiting portion 164 may also be in the form of a male buckle and a female buckle that are connected to each other, or a boss and a groove that are embedded to each other, etc., which is not limited here.

[0070] Continue to refer to Figure 1 , the laminate 30 of one embodiment includes a back cover plate 31, a battery string 32, and a front cover plate 33 which are stacked. Exemplarily, when the photovoltaic module is in normal use, the front cover plate 33 usually faces away from the ground, so that it can receive sunlight 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.

[0071] 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 arranged at intervals 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 to prevent the laminate 30 from detaching from the frame and improve the stability of the photovoltaic module.

[0072] Refer to Figure 5 , both the first limiting groove 211 and the second limiting groove 212 are arc-shaped grooves. Specifically, the side edges 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 edge of the front cover plate 33, and the groove wall of the second limiting groove 212 fits the side edge of the back cover plate 31, improving the limiting effect of the clamping portion 21 on the laminate 30 and also improving the sealing performance between the clamping portion 21 and the laminate 30.

[0073] Refer to Figure 1 , optionally, in one embodiment, the side edge of the back cover plate 31 protrudes from the side edge 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 edge of the back cover plate 31 protrudes from the side edge of the front cover plate 33 in the laminate 30.

[0074] Correspondingly, combined with Figure 5The depth of the second limiting groove 212 is greater than the depth of the first limiting groove 211, so as to ensure that the profile of the clamping portion 21 facing the laminate 30 matches the side profile 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 protruded 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 of the laminate 30 and preventing the laminate 30 from detaching from the frame.

[0075] See also Figure 2 In another embodiment, the side of the back cover 31 and the side of the front cover 33 may also be flush. Exemplarily, the center of the back cover 31 and the center of the front cover 33 are aligned, and the width of the back cover 31 is equal to the width of the front cover 33, and the length of the back cover 31 is equal to the length of the front cover 33, so that the side of the back cover 31 is flush with the side of the front cover 33.

[0076] Correspondingly, combined Figure 6 The 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.

[0077] 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.

[0078] Alternatively, see Figure 7b. 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 limiting member 20 can be reduced, and at the same time, the weight of the limiting member 20 can be reduced, which is convenient for the handling and installation of the limiting member 20.

[0079] See Figure 8 , the clamping portion 16 includes a blocking wall 18 and a partition wall 17. The partition wall 17 is located between the blocking wall 18 and the supporting portion 15. A clamping groove 161 is formed between the partition wall 17 and the blocking wall 18. By using the partition wall 17 and the blocking wall 18 to jointly support the clamping portion 21, the installation stability of the limiting member 20 can be improved.

[0080] Further, an adhesive application groove 162 is formed between the partition wall 17 and the supporting portion 15. Specifically, the adhesive application groove 162 is used to accommodate sealant. After the sealant is extruded, it can fill the gaps between the laminate 30, the frame body 10, and the limiting member 20. After the sealant cures, the connection stability and sealing performance between the laminate 30, the frame body 10, and the limiting member 20 can be improved.

[0081] Optionally, in one embodiment, along the depth direction of the adhesive application groove 162, the width of the adhesive application groove 162 gradually decreases. For example, the adhesive application groove 162 can be trapezoidal in reverse, U-shaped, or jar-mouth-shaped or other special-shaped groove shapes, that is, the adhesive application groove 162 is designed with a wider upper part and a narrower lower part. In this way, on the one hand, the capacity of the sealant that the adhesive application groove 162 can accommodate can be increased, and on the other hand, the larger groove opening can also increase the contact area between the sealant and the laminate 30, improving the sealing effect of the sealant on the laminate 30.

[0082] Optionally, see Figure 8 , in one embodiment, the partition wall 17 and the blocking wall 18 are arranged at intervals. Specifically, the partition wall 17 and the blocking wall 18 are arranged at intervals on the installation wall 11 of the frame body 10. In this way, the depth of the clamping groove 161 can be effectively increased, ensuring that the buckle 20 can be stably inserted into the clamping groove 161.

[0083] See Figure 9 f. In another embodiment, the partition wall 17 can also be directly connected to the blocking wall 18, and there is an interval between the partition wall 17 and the installation wall 11 of the frame body 10. In this way, the volume of the adhesive application groove 162 can be increased, enabling the adhesive application groove 162 to accommodate more sealant.

[0084] Continue to see Figure 8In one embodiment, the partition wall 17 includes a partition portion 171 for separating the glue coating groove 162 from the clamping groove 161 and an extension portion 172 for supporting the clamping portion 21, one end of the extension portion 172 is connected to the partition portion 171, and the other end of the extension portion 172 extends toward the support portion 15 and is used to abut against the side of the laminate 30. Exemplarily, the end of the support portion 15 away from the partition portion 171 is used to abut against the side edge of the back cover plate 31 of the laminate 30.

[0085] By supporting the holding portion 21 through the extension portion 172, the contact area between the holding portion 21 and the partition wall 17 can be increased, thereby improving the stability of the stopper 20. At the same time, the end of the extension portion 172 can be abutted against the side of the laminate 30 to position the laminate 30, ensuring that the laminate 30 can be accurately placed on the appropriate position of the support portion 15, thereby ensuring that the subsequent stopper 20 can accurately limit the laminate 30. In addition, since the extension portion 172 extends toward the support portion 15, it can cover at least part of the glue groove 162. In this way, when the sealant in the glue groove 162 is squeezed, the extension portion 172 can block part of the sealant to reduce the overflow of the sealant.

[0086] Continue to see Figure 8 In one embodiment, a concave arc surface 173 is provided at one end of the extension portion 172 away from the partition portion 171. The concave arc surface 173 can better fit the curved side of the back cover plate 31 of the laminate 30, thereby improving the positioning effect of the laminate 30. At the same time, when the sealant overflows from the notch of the glue coating groove 162, the concave arc surface 173 can also guide the overflowed sealant into the side of the laminate 30, thereby improving the sealing effect on the side of the laminate 30.

[0087] Combination Figure 1 as well as Figure 5 In one embodiment, a first concavo-convex portion 214 is provided on the side of the retaining portion 21 of the stopper 20 that contacts the extension portion 172. The first concavo-convex portion 214 is a concavo-convex structure. The first concavo-convex portion 214 can increase the friction between the retaining portion 21 and the extension portion 172, thereby enhancing the stability of the stopper 20. At the same time, when the sealant overflows between the retaining portion 21 and the extension portion 172, the first concavo-convex portion 214 can accommodate part of the sealant. After the sealant is cured, it can adhere to the retaining portion 21 and the extension portion 172, which can further enhance the connection stability between the retaining portion 21 and the extension portion 172. In addition, the first concavo-convex portion 214 can also prevent the sealant from further overflowing outward, thereby reducing the sealant from overflowing to the outer side wall 12 of the frame body 10. Exemplarily, the first concavo-convex portion 214 includes a plurality of grooves, and the plurality of grooves are arranged at intervals along the direction from the glue coating groove 162 to the retaining groove 161.

[0088] Understandably, in other embodiments, a first concavo-convex portion 214 may also be provided on the side of the extension portion 172 in contact with the clamping portion 21, which can also enhance the stability of the limiting member 20 and prevent glue overflow. Details are not described herein.

[0089] Continuing to refer to Figure 8 , the support portion 15 includes a bearing surface for bearing the laminate 30. The bearing surface is provided with a second concavo-convex portion 151, and the second concavo-convex portion 151 has a concavo-convex structure. The second concavo-convex portion 151 can increase the friction between the bearing surface and the laminate 30, thereby enhancing the stability of the laminate 30. At the same time, when the sealant overflows between the bearing surface and the laminate 30, the second concavo-convex portion 151 can accommodate part of the sealant. After the sealant 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 concavo-convex portion 151 can also hinder the flow of the sealant and reduce the overflow of the sealant to the back surface of the laminate 30. Exemplarily, the second concavo-convex portion 151 includes a plurality of grooves, and the plurality of grooves are spaced apart in a direction away from the glue application groove 162.

[0090] Further, a blocking member 152 is provided at one end of the bearing surface away from the clamping portion 16. The blocking member 152 protrudes from the bearing surface, and the blocking member 152 is used for fitting with the back surface of the laminate 30. Exemplarily, the blocking member 152 is located on the side of the second concavo-convex portion 151 away from the glue application groove 162. By fitting the blocking member 152 with the back surface of the laminate 30, the overflow of the sealant to the back surface of the laminate 30 can be further blocked. Exemplarily, the blocking member 152 includes a colloid member, and the colloid member can fit more closely with the back surface of the laminate 30 to prevent glue overflow.

[0091] Refer to Figure 8 , in one embodiment, the frame body 10 is further provided with a glue overflow groove 163, and the glue overflow groove 163 is communicated with the bottom of the card slot 161. Thus, when the sealant in the glue application groove 162 is extruded and overflows outward, the overflowed sealant can enter the glue overflow groove 163 through the card slot 161, thereby preventing the overflowed sealant from flowing out to the outer side wall 12 of the frame body 10.

[0092] Optionally, the shape of the glue overflow groove 163 is not limited. For example Figure 9 as shown in Figure 9 a, the shape of the glue overflow groove 163 can be rectangular or square. For example Figure 9 as shown in

[0093] Refer to Figure 9c. In one embodiment, the extending direction of the glue overflow groove 163 may be the same as the depth direction of the card slot 161. In other embodiments, the extending direction of the glue overflow groove 163 may form an angle with the depth direction of the card slot 161. For example, Figure 9 as shown in Figure 9 a, the glue overflow groove 163 may extend horizontally towards the outer side wall 12. Or as

[0094] shown in Figure 8 d, the glue overflow groove 163 may also extend in the vertical direction. Figure 9 Optionally, the height by which the blocking wall 18 protrudes from the frame body 10 is not lower than the height by which the partition wall 17 protrudes from the frame body 10. Specifically, as

[0095] shown in 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 16 and the supporting portion 15 both protrude from the mounting wall 11, and the clamping portion 16 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 16 is located outside the supporting portion 15. 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, facilitating the handling and installation of the frame body 10.

[0096] shown in 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, and an inner side wall 13 connected to the other end of the mounting wall 11. The clamping portion 16 and the supporting portion 15 both protrude from the mounting wall 11, and the clamping portion 16 and the supporting portion 15 are sequentially spaced along the direction from the outer side wall 12 to the inner side wall 13. The mounting wall 11, the outer side wall 12, and the inner side wall 13 enclose to form 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 snapped 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, simplifying the installation process of the photovoltaic module and improving the installation efficiency.

[0097] See Figure 9 a. Optionally, in one embodiment, the side of the blocking wall 18 facing away from the partition wall 17 is flush with the outer side wall 12 of the frame body 10, thus ensuring the smooth and beautiful appearance of the frame.

[0098] See Figure 9 b. In another embodiment, the side of the blocking wall 18 facing away from the partition wall 17 protrudes 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 blocking wall 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, enabling the outer side wall 12 to better support the mounting wall 11 and the structures on the mounting wall 11, and improving the stability of the photovoltaic module.

[0099] See Figure 9 a to Figure 9 e. In some embodiments, there is a certain distance between the notch of the card slot 161 and the side of the blocking wall 18 facing away from the partition wall 17, thereby increasing the contact area between the blocking wall 18 and the clamping portion 21 and further improving the stability of the limiting member 20.

[0100] See Figure 10 a to Figure 10 e. In other embodiments, the notch of the card slot 161 can also be arranged close to the side of the blocking wall 18 facing away from the partition wall 17, so as to ensure that the insertion portion 22 of the limiting member 20 can be more easily inserted into the card slot 161.

[0101] 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 of the photovoltaic module in one embodiment includes the following steps:

[0102] S120: See Figure 11 b. Place the laminate 30 on the supporting portion 15 of the frame from top to bottom;

[0103] Specifically, during the assembly process of traditional photovoltaic modules, the laminate 30 usually needs to be inserted horizontally between the A side and the E side of the frame. During this process, the laminate 30 or the frame is prone to being squeezed and burst. In this application, by placing the laminate 30 on the supporting part 15 of the frame from top to bottom, the laminate 30 is avoided from being squeezed during the assembly process, the risk of the laminate 30 bursting is reduced, and at the same time, the convenience of placing the laminate 30 is improved.

[0104] S130: Refer to Figure 11 c, insert the limiting member 20 into the card slot 161 along the depth direction of the card slot 161, and make the limiting member 20 be in limiting cooperation with the side of the laminate 30.

[0105] Specifically, when inserting the limiting member 20, the limiting member 20 can be inserted into the card slot 161 of the frame body 10 obliquely from top to bottom along the depth direction of the card slot 161, which avoids the vertical extrusion of the laminate 30 caused by the vertical insertion of the limiting member 20, and thus can reduce the risk of the laminate 30 bursting.

[0106] Refer to Figure 11 a. Optionally, in one embodiment, the following steps are further included before step S120:

[0107] S110: Fill the sealant 40 in the glue application groove 162 of the frame body 10.

[0108] Specifically, by filling the sealant in the glue application groove 162, after placing the laminate 30 on the supporting part 15 and installing the limiting member 20 on the frame body 10, the sealant 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.

[0109] 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 technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0110] The above-described embodiments only represent several implementation manners of this application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting 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 this application, several deformations and improvements can still be made, and these all belong to the protection scope of this application. Therefore, the protection scope of the patent of this application should 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), the frame body (10) being protrudingly provided with a supporting portion (15) and a clamping portion (16), the supporting portion (15) and the clamping portion (16) being arranged at a distance from each other on the same side of the frame body (10), the supporting portion (15) being used to support the laminate (30), the clamping portion (16) being provided with a clamping groove (161) at one end facing away from the frame body (10), the clamping groove (161) extending obliquely in a direction close to the supporting portion (15); and A limiting member (20), the limiting member (20) being clamped in the clamping groove (161), and the limiting member (20) being supported and matched with an end of the clamping portion (16) facing away from the frame body (10), the limiting member (20) being used to be limitedly matched 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).

2. The frame according to claim 1, characterized in that: The limiting member (20) comprises: a clamping portion (21), the clamping portion (21) being in contact with an end of the clamping portion (16) facing away from the frame body (10), and the clamping portion (21) being used for being limitedly matched 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 (16) is lower than or flush with a front surface of the laminate (30); An inserting portion (22), one end of the inserting portion (22) being connected to the clamping portion (21), and the other end of the inserting portion (22) extending obliquely in a direction close to one side of the supporting portion (15).

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 (161) is provided with a second limiting portion (164) that cooperates with the first limiting portion (221) in limiting manner.

7. The frame according to claim 1, characterized in that: The clamping portion (16) comprises a blocking wall (18) and a partition wall (17); the partition wall (17) is located between the blocking wall (18) and the support portion (15); the clamping groove (161) is formed between the partition wall (17) and the blocking wall (18); and a glue coating groove (162) is formed between the partition wall (17) and the support portion (15).

8. The frame according to claim 7, characterized in that: The partition wall (17) comprises a partition portion (171) for separating the glue coating groove (162) from the clamping groove (161) and an extension portion (172) for supporting the limiting member (20); one end of the extension portion (172) is connected to the partition portion (171), and the other end of the extension portion (172) extends in a direction close to the supporting portion (15) and is used to abut against the side surface of the laminate (30).

9. The frame according to claim 8, characterized in that: An end of the extension portion (172) facing away from the partition portion (171) is provided with a concave arc surface (173); and / or, At least one of the contact surfaces of the extension portion (172) and the limiting member (20) is provided with a first concave-convex portion (214), and the first concave-convex portion (214) is in a concave-convex structure.

10. The frame according to claim 7, characterized in that: The frame body (10) is further provided with a glue overflow groove (163), wherein the glue overflow groove (163) is connected to the bottom of the card slot (161); and / or, The height of the blocking wall (18) protruding from the frame body (10) is not lower than the height of the partition wall (17) protruding from the frame body (10).

11. The frame according to claim 1, characterized in that: The support portion (15) comprises a bearing surface for bearing the laminate (30); wherein: The bearing surface is provided with a second concave-convex portion (151), the second concave-convex portion (151) being a concave-convex structure; and / or, A blocking member (152) is provided at one end of the bearing surface away from the clamping portion (16); the blocking member (152) protrudes from the bearing surface; the blocking member (152) is used to fit with the back surface of the laminate (30).

12. The frame according to any one of claims 1 to 11, 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 (16) and the supporting portion (15) are both protrudingly arranged on the mounting wall (11), and the clamping portion (16) 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 (16) and the supporting portion (15) are both protrudingly arranged on the mounting wall (11), and the clamping portion (16) 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 arranged to form a second cavity (192) having an opening (193); the opening (193) is arranged opposite to the mounting wall (11).

13. The frame according to claim 12, characterized in that: The side of the clamping portion (16) facing away from the supporting portion (15) is flush with or protrudes from the outer side wall (12).

14. A photovoltaic module, characterized in that: The invention comprises a laminate (30) and a frame according to any one of claims 1 to 13, 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).

15. The photovoltaic module according to claim 14, 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).

16. 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; The limiting member (20) is inserted into the locking slot (161) along the depth direction of the locking slot (161), and the limiting member (20) is matched with the side edge of the laminate (30) in a limiting manner.

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