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 clamping part and a supporting part in a protruding manner, the supporting part is used for supporting a laminated piece, the clamping part and the supporting part are arranged on the same side of the frame main body at an interval, and a clamping groove is formed in the side, opposite to the supporting part, of the clamping part; and the clamping groove extends towards the direction from the clamping part 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 in limiting fit with the side face of the laminating piece, 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 is disposed around 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 prone to fall off from the frame, resulting in 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 clamping portion and a supporting portion are protrudingly provided. The supporting portion is used to support the laminate. The clamping portion and the supporting portion are spaced apart on the same side of the frame body. A card slot is formed on the side of the clamping portion facing away from the supporting portion, and the card slot extends in the direction from the clamping portion towards the supporting portion, and

[0007] A limiting member which is clamped in the card slot, and the limiting member is supported and cooperated with the 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 portion, the clamping portion abuts against the top end of the clamping portion, and the limiting member is used to limit the side of the laminate, and in the thickness direction of the laminate, the top end of the clamping portion is lower than or flush with the front side of the laminate;

[0011] The plug-in portion includes an extension section and an insertion section, one end of the extension section is connected to the clamping portion, the other end of the extension section extends toward the direction close to the frame body and is connected to the insertion section, the insertion section extends in the direction close to the support portion, and the insertion section is inserted in 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, and the first limiting groove and the second limiting groove are spaced apart along the height direction of the frame, and the first limiting groove is used to accommodate the side edge of the front cover plate of the laminate, and the second limiting groove is used to accommodate 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 protrusion is protruding between the first limiting groove and the second limiting groove. The protrusion is used to be inserted between the front cover plate and the back cover plate, and the protrusion is used to abut and cooperate with a side of the back cover plate close to the front cover plate.

[0016] In one embodiment, an inclined surface is formed on a side of the clamping portion away from the clamping portion, and the height of the inclined surface gradually decreases in a direction away from the laminate; and / or,

[0017] The interior of the clamping portion is provided with a hollow cavity and / or,

[0018] The inserting section is provided with a first limiting portion, and the slot wall of the clamping slot is provided with a second limiting portion which cooperates with the first limiting portion.

[0019] In one embodiment, the frame body is further provided with a partition protruding therefrom, the partition being located between the support portion and the clamping portion, a glue coating groove being formed between the partition and the support portion, and a glue overflow groove being formed between the partition and the clamping portion.

[0020] In one embodiment, the clamping portion includes a protruding section, a connecting section, and a bearing section. The protruding section protrudes from the frame body. The connecting section connects the protruding section and the bearing section. The bearing section supports the limiting member. One end of the bearing section extends away from the supporting portion and cooperates with the protruding section and the connecting section to form the clamping groove. The other end of the bearing section extends towards the supporting portion and is used to abut against the side surface of the lamination.

[0021] In one embodiment, a concave arc surface is provided at one end of the bearing section close to the supporting portion; and / or,

[0022] At least one of the contact surfaces between the bearing section 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,

[0023] The separating portion is located below the bearing section, and an overflow opening communicating the glue application groove and the overflow groove is formed between one end of the separating portion away from the frame body and the bearing section.

[0024] In one embodiment, a slope surface is formed at one end of the separating portion away from the frame body, and the height of the slope surface gradually decreases along the direction from the clamping portion to the supporting portion.

[0025] In one embodiment, the supporting portion includes a bearing surface for bearing the lamination;

[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, and the blocking member protrudes from the bearing surface. The blocking member is used for fitting and cooperating with the back surface of the lamination.

[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 supporting portion both protrude from the mounting wall, and the clamping portion and the supporting 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 together 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 supporting portion both protrude from the mounting wall, and the clamping portion and the supporting 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 limit fit 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 on top of each other;

[0033] Wherein, the side edges of the back cover plate are flush with the side edges of the front cover plate; or, 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 also provides an assembly method for a 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 from the side of the clamping portion facing away from the supporting portion towards the direction close to the supporting portion, and make the limiting member in limit fit with the side edge 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 protruding a supporting portion and a clamping portion on the frame body, and opening a card slot on the side of the clamping portion facing away from the supporting portion, the supporting portion can support the laminate, the clamping portion can support the limiting member, and the limiting member is inserted into the card slot, so that the limiting member can be fixed on the frame body. The limiting member is then in limit fit with the laminate, and the laminate can be fixed on the frame body. And because the limiting member is in limit fit 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, ensures that the dust falling on the front surface of the laminate can flow out quickly along with the rainwater washing, and further reduces 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.

[0038] At the same time, since the frame body and the limiter are of split design, when assembling the photovoltaic module, the laminate can be placed from top to bottom on the supporting part of the frame, and then the limiter can be installed on the frame body. In this way, the laminate is prevented from being squeezed during the assembly process, the risk of bursting of the laminate is reduced, and the convenience of assembling the photovoltaic module is improved.

[0039] Furthermore, since the slot extends in the direction from the snap-fitting portion to the supporting portion, when installing the limiting member, the limiting member can be inserted into the slot from the side of the snap-fitting portion facing away from the supporting portion toward the direction close to the supporting portion, that is, the limiting member can be horizontally inserted into the slot from the outside of the frame to the inside and limited by the laminate, thus avoiding the limiting member from being inserted in the thickness direction of the laminate to squeeze the front of the laminate, which can further reduce the risk of the laminate exploding. At the same time, after the plug-in portion of the limiting member is inserted into the slot, the slot wall of the slot extending from the snap-fitting portion to the supporting portion can limit the limiting member in the vertical direction, ensuring that the limiting member will not separate from the frame body in the vertical direction, thereby improving the limiting stability of the limiting member on the laminate. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application.

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0042] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the various elements are drawn only as examples in the drawings and are not necessarily drawn according to the true scale.

[0043] Figure 1 FIG. 4 is a schematic cross-sectional view of a photovoltaic module according to the first embodiment.

[0044] Figure 2 FIG. 4 is a schematic cross-sectional view of a photovoltaic module according to a second embodiment.

[0045] Figure 3 FIG. 4 is a schematic cross-sectional view of a photovoltaic module according to a third embodiment.

[0046] Figure 4 FIG. 4 is a schematic cross-sectional view of a photovoltaic module according to a fourth embodiment.

[0047] Figure 5 It is a schematic structural diagram of a limiter according to an embodiment.

[0048] Figure 6 Schematic structural diagram of the limiting member for another embodiment.

[0049] Figure 7 Schematic diagram of the structure of the limiting member for other embodiments.

[0050] Figure 8 Schematic cross-sectional view of the frame body of the first embodiment.

[0051] Figure 9 Schematic cross-sectional view of the frame body of the second embodiment.

[0052] Figure 10 Schematic cross-sectional view of the frame body of the third embodiment.

[0053] Figure 11 Schematic cross-sectional view of the frame body of the fourth embodiment.

[0054] Figure 12 Schematic cross-sectional view of the frame body of the fifth embodiment.

[0055] Figure 13 Schematic diagram of the assembly process of the photovoltaic module for one embodiment.

[0056] Explanation of reference numerals:

[0057] 10. Frame body; 11. Installation wall; 12. Outer side wall; 13. Inner side wall; 14. Bottom wall; 15. Support part; 151. Second concave-convex part; 152. Blocking member; 161. Glue application groove; 162. Glue overflow groove; 17. Partition part; 171. Slope surface; 172. Glue overflow port; 18. Clamping part; 181. Card slot; 182. Protruding section; 183. Connection section; 184. Bearing section; 185. Second limiting part; 186. Concave arc surface; 191. First cavity; 192. Second cavity; 193. Opening; 20. Limiting member; 21. Clamping part; 211. First limiting groove; 212. Second limiting groove; 213. Protruding part; 214. First concave-convex part; 215. Inclined surface; 216. Hollow cavity; 22. Insertion part; 221. Extension section; 222. Insertion section; 223. First limiting part; 30. Laminated part; 31. Back cover plate; 32. Battery string; 33. Front cover plate; 40. Sealant. Detailed implementation manners

[0058] To make the above objects, features, and advantages of the present application more apparent and understandable, the following provides a detailed description of the specific embodiments of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a thorough understanding of 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 spirit of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0059] 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 accompanying drawings. These are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the present application.

[0060] In addition, if terms such as "first" and "second" appear, these terms are only used for descriptive purposes 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 the present application, if the term "plural" appears, the meaning of "plural" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0061] In the present application, unless otherwise clearly specified and limited, if terms such as "install", "connect", "join", "fix", 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 elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0062] 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 be that the first feature is directly above or obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of 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 horizontal height of the first feature is less than that of the second feature.

[0063] 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.

[0064] In a first aspect, the present 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. The frame body 10 is convexly provided with a clamping portion 18 and a supporting portion 15. The supporting portion 15 is used to support the laminate 30. The clamping portion 18 and the supporting portion 15 are spaced apart on the same side of the frame body 10. A clamping groove 181 is formed on the side of the clamping portion 18 facing away from the supporting portion 15, and the clamping groove 181 extends in the direction from the clamping portion 18 pointing to the supporting portion 15. Exemplarily, the clamping portion 18 and the supporting portion 15 are spaced apart in the horizontal direction, and the clamping portion 18 is located outside the supporting portion 15. The extending direction of the clamping groove 181 is horizontally extending from the outside of the frame body 10 to the inside of the frame body 10.

[0065] Furthermore, the limiting member 20 is clamped in the clamping groove 181, and the limiting member 20 is supported and cooperated with the end of the clamping portion 18 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 for abutting against the side surface of the laminate 30 and limiting the laminate 30 in the thickness direction.

[0066] Continue to refer to Figure 1In a second aspect, the present application further provides a photovoltaic module. A photovoltaic module of one embodiment includes a laminate 30 and the frame mentioned above. The laminate 30 is arranged on the support portion 15. The side surface of the laminate 30 is limited by the limit member 20, and the front surface of the laminate 30 is higher than or flush with the limit member 20.

[0067] In the above-mentioned frame and photovoltaic assembly, the frame is configured as a split frame body 10 and a limit member 20. By protruding a support portion 15 and a clamping portion 18 on the frame body 10, and opening a clamping groove 181 on the side of the clamping portion 18 facing away from the support portion 15, the support portion 15 can support the laminate 30. By supporting the limit member 20 with the snap-fit ​​portion 18 and inserting the limit member 20 into the snap-fitting slot 181, the limit member 20 can be fixed on the frame body 10. The limit member 20 is then limited and matched with the laminate 30, so that the laminate 30 can be fixed on the frame body 10. In addition, since the limit member 20 is limited and matched with the side of the laminate 30, and the limit member 20 is lower than or flush with the front of the laminate 30, the limit member 20 is prevented from blocking the front of the laminate 30, thereby ensuring that dust falling on the front of the laminate 30 can quickly flow out of the front of the laminate 30 with the flushing of rainwater, thereby ensuring the stability of the photovoltaic module structure while reducing the dust accumulation on the front of the photovoltaic module, thereby improving the power generation efficiency of the photovoltaic module.

[0068] At the same time, since the frame body 10 and the limiter 20 are split designs, when assembling the photovoltaic module, the laminate 30 can be placed from top to bottom on the support portion 15 of the frame, and then the limiter 20 can be installed on the frame body 10. In this way, the laminate 30 is prevented from being squeezed during the assembly process, the risk of bursting of the laminate 30 is reduced, and the convenience of assembling the photovoltaic module is improved.

[0069] Furthermore, since the slot 181 extends in the direction from the clamping portion 18 to the support portion 15, when installing the limiter 20, the limiter 20 can be inserted into the slot 181 from the side of the clamping portion 18 facing away from the support portion 15 toward the direction close to the support portion 15, that is, the limiter 20 can be inserted into the slot 181 from the width direction or the length direction of the laminate 30 and limited from the laminate 30, avoiding the problem of the limiter 20 being inserted from the thickness direction of the laminate 30 and causing compression on the front of the laminate 30, and can further reduce the risk of the laminate 30 exploding. At the same time, after the plug-in portion 22 of the limiter 20 is inserted into the slot 181, the slot wall of the slot 181 can limit the limiter 20 from the vertical direction, ensuring that the limiter 20 will not separate from the frame body 10 in the vertical direction, thereby improving the limiting stability of the limiter 20 on the laminate 30.

[0070] Specifically, combined Figure 1 as well as Figure 5In one embodiment, the limiting member 20 includes a clamping portion 21 and an inserting portion 22, the clamping portion 21 abuts against the end of the clamping portion 18 that faces away from the frame body 10, and the clamping portion 21 is used to cooperate with the side limiting portion of the laminate 30. In the thickness direction of the laminate 30, the end of the clamping portion 21 that faces away from the clamping portion 18 is lower than or flush with the front side of the laminate 30.

[0071] The plug-in portion 22 includes an extension section 221 and an insertion section 222. One end of the extension section 221 is connected to the clamping portion 21. The other end of the extension section 221 extends toward the frame body 10 and is connected to the insertion section 222. The insertion section 222 extends toward the support portion 15. The insertion section 222 is inserted into the card slot 181. Exemplarily, the plug-in portion 22 is formed as a whole in an L-shaped structure, so that the plug-in portion 22 of the L-shaped structure is clamped with the slot wall of the card slot 181, thereby preventing the stopper 20 from escaping upward from the frame body 10.

[0072] Continue to see Figure 1 Optionally, in one embodiment, the insertion section 222 is provided with a first limiting portion 223. Figure 8 The slot wall of the card slot 181 is provided with a second limiting portion 185 that cooperates with the first limiting portion 223 to improve the stability of the plug-in portion 22 inserted in the card slot 181 and prevent the limiting member 20 from detaching from the frame body 10 outward.

[0073] For example, in one embodiment, the first limiting portion 223 may be a protrusion disposed on the insertion section 222, and the second limiting portion 185 may be a tooth pattern disposed on the wall of the slot 181, and the insertion section 222 may be limited in the slot 181 by the engagement between the tooth pattern and the protrusion. Figure 5 In the illustrated embodiment, the protrusion is provided on one side of the insertion section 222, and the tooth pattern is correspondingly provided on one side of the groove wall of the slot 181. In other embodiments, the protrusions may be provided on both sides of the plug-in portion 22, and correspondingly, the groove walls on both sides of the slot 181 may be provided with tooth patterns that engage with the tooth patterns, thereby further improving the installation stability of the limiter 20.

[0074] Understandably, if Figure 9 As shown, in other embodiments, the second limiting portion 185 can also be a boss protruding from the wall of the slot 181, and correspondingly, the first limiting portion 223 can be a groove opened on the insertion section 222. By embedding the boss in the groove, the insertion section 222 can also be limited in the slot 181. Of course, the first limiting portion 223 and the second limiting portion 185 can also be in the form of male buckles and female buckles that are connected to each other, which is not limited here.

[0075] Continue to see 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 set as a light-transmitting plate or an opaque plate, which is not limited herein.

[0076] 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 thickness direction of the laminate 30. 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 limit the laminate 30 and prevent the laminate 30 from detaching from the frame, thereby improving the stability of the photovoltaic module.

[0077] See Figure 5 , in one embodiment, 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.

[0078] See 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.

[0079] Correspondingly, combined with Figure 5, the depth of the second limiting groove 212 is greater than that of the first limiting groove 211, so as to ensure that the contour of the clamping portion 21 facing the lamination 30 matches the side contour of the lamination 30. While the groove wall of the first limiting groove 211 fits the side edge of the front cover plate 33, it is ensured that the groove wall of the second limiting groove 212 can also fit the side edge 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 lamination 30, further improving the limiting effect on the lamination 30 and preventing the lamination 30 from detaching from the frame.

[0080] See Figure 2 , in another embodiment, the side edge of the back cover plate 31 and the side edge 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 edge of the back cover plate 31 and the side edge of the front cover plate 33 are flush at the lamination 30.

[0081] Correspondingly, in combination with 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 lamination 30 matches the side contour of the lamination 30. While the groove wall of the first limiting groove 211 fits the side edge of the front cover plate 33, it is ensured that the groove wall of the second limiting groove 212 can also fit the side edge of the back cover plate 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 lamination 30, and can also prevent the lamination 30 from detaching from the frame.

[0082] Optionally, see Figure 7 a, in one embodiment, on the side of the clamping portion 21 facing away from the clamping portion 18, that is, the top side of the clamping portion 21, an inclined surface 215 is formed, and the height of the inclined surface 215 gradually decreases along the direction away from the lamination 30. In this way, when there is rainwater on the front side of the lamination 30, the rainwater can quickly flow out of the front side of the lamination 30 along the inclined surface 215, further preventing dust and dirt in the rainwater from remaining on the front side of the lamination 30.

[0083] Optionally, 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, facilitating the handling and installation of the limiting member 20.

[0084] See Figure 8 , a partition portion 17 is further protrudingly provided on the frame body 10. The partition portion 17 is located between the support portion 15 and the clamping portion 18. A glue application groove 161 is formed between the partition portion 17 and the support portion 15, and a glue overflow groove 162 is formed between the partition portion 17 and the clamping portion 18. Specifically, the glue application groove 161 is used to accommodate the sealant. After being extruded, the sealant can fill the gaps between the laminate 30, the frame body 10, and the limiting member 20. After the sealant is cured, the connection stability and sealing performance of the laminate 30, the frame body 10, and the limiting member 20 can be improved. Further, when the sealant is extruded and overflows from the glue overflow groove 162, the glue overflow groove 162 can accommodate the outwardly overflowing sealant to prevent the sealant from overflowing outside the frame.

[0085] Exemplarily, the glue application groove 161 can be in the shape of an inverted trapezoid, a U-shape, a jar mouth shape, or other special-shaped groove shapes. Similarly, the glue overflow groove 162 can be in the shape of a rectangle, an ellipse, a triangle, an L-shape, or other special-shaped groove shapes, which are not limited herein.

[0086] See Figure 8 , the clamping portion 18 includes a protruding section 182, a connecting section 183, and a bearing section 184. The protruding section 182 protrudes from the frame body 10. The connecting section 183 connects the protruding section 182 and the bearing section 184. The bearing section 184 is used to support the limiting member 20. One end of the bearing section 184 extends in a direction away from the support portion 15 and jointly encloses a clamping groove 181 with the protruding section 182 and the connecting section 183. Specifically, the protruding section 182 constitutes one side wall of the clamping groove 181, the bearing section 184 constitutes the other side wall of the clamping groove 181, and the connecting section 183 constitutes the bottom wall 14 of the clamping groove 181. Further, the other end of the bearing section 184 extends in a direction close to the support portion 15 and is used to abut against the side surface of the laminate 30. Exemplarily, the end of the bearing section 184 close to the support portion 15 is used to abut against the side edge of the back cover plate 31 of the laminate 30.

[0087] By supporting the clamping portion 21 with the bearing section 184, the contact area between the clamping portion 21 and the partition portion 17 can be increased, thereby improving the stability of the limiting member 20. At the same time, by abutting and cooperating with the side surface of the laminate 30 at the end of the bearing section 184, the laminate 30 can be positioned, ensuring that the laminate 30 can be accurately placed at an appropriate position on the support portion 15, and further ensuring that the subsequent limiting member 20 can accurately limit the laminate 30.

[0088] Continue to refer to Figure 8 In one embodiment, a concave arc surface 186 is provided at one end of the bearing section 184 close to the support portion 15. The concave arc surface 186 can better fit the arc-shaped side edge of the back cover plate 31 of the laminate 30, thereby improving the positioning effect of the laminate 30. In addition, the concave arc surface 186 can also guide the sealant into the side surface of the laminate 30, improving the sealing effect on the side surface of the laminate 30.

[0089] Continue to refer to Figure 8 In one embodiment, the partition portion 17 is located below the bearing section 184. An overflow port 172 communicating the glue application groove 161 and the overflow groove 162 is formed between one end of the partition portion 17 facing away from the frame body 10 and the bearing section 184. That is, the bearing section 184 covers the partition portion 17. In this way, when the sealant in the glue application groove 161 is extruded, the bearing section 184 blocks the overflowing sealant, so that the overflowing sealant enters the overflow groove 162 through the overflow port 172, reducing the overflow of the sealant to the outside of the frame.

[0090] Furthermore, a slope surface 171 is formed at one end of the partition portion 17 facing away from the frame body 10. Along the direction from the clamping portion 18 to the support portion 15, the height of the slope surface 171 gradually decreases. Exemplarily, as Figure 10 shown, in one embodiment, the slope surface 171 can be an inclined straight surface, as Figure 12 shown, in another embodiment, the slope surface 171 can also be an arc surface. When the sealant overflows from the notch of the glue application groove 161, the slope surface 171 can guide the overflowing sealant into the overflow groove 162 through the overflow port 172, further reducing the overflow of the sealant to the outside of the frame.

[0091] Combined with Figure 1 and Figure 5, in one embodiment, a first concavo-convex portion 214 is provided on the side of the clamping portion 21 in contact with the bearing section 184, and the first concavo-convex portion 214 has a concavo-convex structure. The first concavo-convex portion 214 can increase the friction between the clamping portion 21 and the bearing section 184, thereby enhancing the stability of the limiting member 20. At the same time, when the sealant overflows between the clamping portion 21 and the bearing section 184, the first concavo-convex portion 214 can accommodate part of the sealant. After the sealant cures, it can adhere the clamping portion 21 and the bearing section 184, further enhancing the connection stability between the clamping portion 21 and the bearing section 184. In addition, the first concavo-convex portion 214 can also prevent the sealant from further overflowing outward and reduce the sealant from overflowing to the outside 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 away from the glue application groove 161. Understandably, in other embodiments, a first concavo-convex portion 214 is also provided on the side of the bearing section 184 in contact with the clamping portion 21, which can also achieve the effect of enhancing the stability of the limiting member 20 and preventing glue overflow, and will not be elaborated here.

[0092] See Figure 7 c, in other embodiments, the side of the clamping portion 21 in contact with the bearing section 184 can also be a flat surface, so as to improve the fit between the clamping portion 21 and the bearing section 184 and prevent the sealant from overflowing therefrom.

[0093] Continue to see Figure 8 , the supporting portion 15 includes a bearing surface for bearing the laminate 30, and a second concavo-convex portion 151 is provided on the bearing surface. The second concavo-convex portion 151 has a concavo-convex structure. Through the second concavo-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 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 sealant from overflowing to the back of the laminate 30. Exemplarily, the second concavo-convex portion 151 includes a plurality of grooves, and the plurality of grooves are arranged at intervals in a direction away from the glue application groove 161.

[0094] Furthermore, a blocking member 152 is provided at one end of the bearing surface away from the clamping portion 18. The blocking member 152 protrudes from the bearing surface, and the blocking member 152 is used for fittingly cooperating 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 161. By fitting the blocking member 152 with the back surface of the laminate 30, the sealant 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 more closely fit the back surface of the laminate 30 to prevent glue overflow.

[0095] SeeFigure 11 , in another embodiment, the bearing surface can also be a flat surface, thereby improving the fitting of the clamping portion 21 and the bearing section 184 and preventing the sealant from overflowing therefrom.

[0096] See 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 and the supporting portion 15 both protrude from the mounting wall 11, and the clamping portion 18 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 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.

[0097] 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 and the supporting portion 15 both protrude from the mounting wall 11, and the clamping portion 18 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 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 a pressing block, simplifying the installation process of the photovoltaic module and improving the installation efficiency.

[0098] See Figure 8 , optionally, in one embodiment, the side of the clamping portion 18 facing away from the supporting portion 15 is flush with the outer side wall 12 of the frame body 10, thus ensuring the smooth and beautiful appearance of the frame.

[0099] See Figure 10 , in another embodiment, the side of the clamping portion 18 facing away from the supporting portion 15 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 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, enabling the outer side wall 12 to better support the mounting wall 11 and the structures on the mounting wall 11, improving the stability of the photovoltaic module.

[0100] 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:

[0101] S120: Refer to Figure 13 b. Place the laminate 30 on the supporting portion 15 of the frame from top to bottom;

[0102] Specifically, in the traditional 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 supporting 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, and at the same time improving the convenience of placing the laminate 30.

[0103] S130: Refer to Figure 13 c. Insert the limiting member 20 into the card slot 181 from the side of the card connecting portion 18 facing away from the supporting portion 15 towards the direction close to the supporting portion 15, and make the limiting member 20 be in limit cooperation with the side of the laminate 30.

[0104] Specifically, when installing the limiting member 20, the limiting member 20 can be inserted into the card slot 181 from the side of the card connecting portion 18 facing away from the supporting portion 15 towards the direction close to the supporting portion 15, that is, insert the limiting member 20 into the card slot 181 along the width direction or the length direction of the laminate 30, avoiding squeezing the front surface of the laminate 30 by the limiting member 20, and further reducing the risk of bursting of the laminate 30.

[0105] Refer to Figure 13 a. Optionally, in an embodiment, the following steps are further included before step S120:

[0106] S110: Fill the sealant 40 in the glue application groove 161 of the frame main body 10.

[0107] Specifically, by filling the sealant 40 in the glue application groove 161, after placing the laminate 30 on the supporting portion 15 and installing the limiting member 20 on the frame main body 10, the sealant 40 adheres the laminate 30 and the frame main body 10, improving the connection stability and sealing performance between the laminate 30 and the frame main body 10, and the sealant 40 can spread to between the clamping portion 21 and the side surface of the laminate 30, further improving the connection stability and sealing performance between the clamping portion 21 and the laminate 30.

[0108] 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-described 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.

[0109] The above-described embodiments merely represent several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to 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), the frame body (10) being protrudingly provided with a clamping portion (18) and a supporting portion (15), the supporting portion (15) being used to support the laminate (30), the clamping portion (18) and the supporting portion (15) being arranged at a distance on the same side of the frame body (10), the clamping portion (18) being provided with a clamping groove (181) on a side of the clamping portion (18) facing away from the supporting portion (15), the clamping groove (181) extending in a direction from the clamping portion (18) to the supporting portion (15), and A limiting member (20), the limiting member (20) being snap-fitted into the snap-fitting groove (181), and the limiting member (20) being supported and matched with an end of the snap-fitting portion (18) that is away from the frame body (10), the limiting member (20) being used to be position-limited and 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 (18) that is 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) that is away from the clamping portion (18) is lower than or flush with a front surface of the laminate (30); A plug-in portion (22), the plug-in portion (22) comprising an extension section (221) and an insertion section (222), one end of the extension section (221) being connected to the clamping portion (21), the other end of the extension section (221) extending in a direction close to the frame body (10) and connected to the insertion section (222), the insertion section (222) extending in a direction close to the support portion (15), and the insertion section (222) 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: An inclined surface (215) is formed on a side of the clamping portion (21) facing away from the clamping portion (18), and the height of the inclined 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 insertion section (222) is provided with a first limiting portion (223), and the slot wall of the locking slot (181) is provided with a second limiting portion (185) that cooperates with the first limiting portion (223).

7. The frame according to claim 1, characterized in that: The frame body (10) is further provided with a protruding partition portion (17), the partition portion (17) being located between the support portion (15) and the clamping portion (18), a glue coating groove (161) being formed between the partition portion (17) and the support portion (15), and a glue overflow groove (162) being formed between the partition portion (17) and the clamping portion (18).

8. The frame according to claim 7, characterized in that: The clamping portion (18) comprises a protruding section (182), a connecting section (183) and a bearing section (184); the protruding section (182) is protrudingly arranged on the frame body (10); the connecting section (183) connects the protruding section (182) and the bearing section (184); the bearing section (184) supports the limiting member (20); one end of the bearing section (184) extends in a direction away from the supporting portion (15) and is enclosed together with the protruding section (182) and the connecting section (183) to form the clamping groove (181); the other end of the bearing section (184) extends in a direction close to the supporting portion (15) and is used to abut against a side surface of the laminate (30).

9. The frame according to claim 8, characterized in that: An end of the bearing section (184) close to the support portion (15) is provided with a concave arc surface (186); and / or, At least one of the contact surfaces of the bearing section (184) and the limiting member (20) is provided with a first concave-convex portion (214), the first concave-convex portion (214) being a concave-convex structure; and / or, The partition (17) is located below the bearing section (184), and a glue overflow opening (172) communicating with the glue coating groove (161) and the glue overflow groove (162) is formed between an end of the partition (17) facing away from the frame body (10) and the bearing section (184).

10. The frame according to claim 8, characterized in that: An end of the partition portion (17) facing away from the frame body (10) is formed with a slope surface (171), and the height of the slope surface (171) gradually decreases along the direction from the clamping portion (18) to the supporting portion (15).

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 (18); 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 (18) and the supporting portion (15) are both protrudingly arranged on the mounting wall (11), and the clamping portion (18) 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) and the supporting portion (15) are both protrudingly arranged on the mounting wall (11), and the clamping portion (18) 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 (18) 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 clamping groove (181) from the side of the clamping portion (18) facing away from the supporting portion (15) towards the supporting portion (15), and the limiting member (20) is matched with the side edge of the laminate (30) in a limiting manner.

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