Photovoltaic module and photovoltaic system

Abstract

The present application relates to the technical field of photovoltaics, and particularly discloses a photovoltaic module and a photovoltaic system. The photovoltaic module comprises: a laminated member and a frame fitted with the laminated member. The frame comprises a bearing portion and a blocking portion connected to the bearing portion. The bearing portion and the blocking portion surround to form an accommodating recess. In the thickness direction of the laminated member, the height of the top of the blocking portion is not higher than the height of a light-receiving surface of the laminated member. A first protrusion is provided in the accommodating recess, and the first protrusion divides the accommodating recess into a first accommodating recess and a second accommodating recess. In the thickness direction of the laminated member, there is a first distance L1 between the first protrusion and the top of the blocking portion, and there is a second distance L2 between the first protrusion and the top of the bearing portion, the distances satisfying 0.2≤L2:L1≤1. 2.

Description

Photovoltaic panels and photovoltaic systems

[0001] This application claims priority to the Chinese patent application filed with the Patent Office of China on January 26, 2024, with application number 202410117736.0 and invention name “A photovoltaic module”, and the Chinese patent application filed with the Patent Office of China on January 26, 2024, with application number 202420204873.3 and invention name “Frame and photovoltaic module”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of photovoltaic technology, and in particular to a photovoltaic module and a photovoltaic system. Background Art

[0003] When photovoltaic modules are installed outdoors on rainy or snowy days, the bottom frame of the module is higher than the top surface of the laminate, causing water or snow to accumulate near the bottom frame. This snow accumulation reduces the amount of sunlight entering the module, reducing the module's power generation. Once the accumulated water dries, dust may accumulate on the laminate surface near the bottom frame, partially blocking the laminate. This also affects sunlight absorption, reducing the module's power generation and, in severe cases, may even cause hot spots.

[0004] The existing improvement direction is mainly to remove the bottom frame or make the bottom frame flush with the top surface of the laminate, thereby reducing the shielding effect of the bottom frame on rain, snow, and dust, so that rain, snow, and dust can flow away from the surface of the laminate. However, after the bottom frame is removed or the bottom frame is made flush, the laminate will have the problem of silicone overflow during the framing process. The silicone overflows to the top surface of the laminate, and a wiping process needs to be added during the processing of the photovoltaic module to wipe off the silicone that overflows to the top surface of the laminate. If the overflowed silicone is not discovered, the silicone remains on the surface of the laminate. During the use of the photovoltaic module, the dirt washed away by rainwater will not be able to flow away, and it will block the solar cells, affect the power generation of the solar cells, and even cause hot spots.

[0005] In response to the above problems, with reference to FIG1 , a schematic diagram of a dust-proof photovoltaic module frame structure disclosed in the prior art is provided (authorization publication number: CN212969542U). The photovoltaic module frame includes a bottom plane frame 40, a middle connecting frame 50, and a top support frame 60. The top support frame 60 includes a bottom support portion 61 and a side connection portion 62, and the side connection portion 62 is an inverted vertical hook member arranged on the outside of the bottom support portion 61. A rib-shaped protrusion, namely an overflow glue stopper 30, is provided on the inner side of the inverted vertical hook member, so that the adhesive is applied and placed in the overflow glue groove cavity. Since there is a gap between the free end of the overflow glue stopper 30 and the photovoltaic module, the adhesive is overflowed into the overflow glue groove cavity. The overflow glue groove cavity can not only assist in the bonding and fixing of the photovoltaic module glass but also absorb the overflow glue.

[0006] However, the above setting method makes it impossible for the silicone to completely fill the overflow groove cavity. On the one hand, the bonding effect of the laminate is poor. On the other hand, the sealing effect between the side of the laminate and the frame is poor. Water easily enters the interior of the laminate and causes a short circuit, and the reliability of the photovoltaic module is poor.

[0007] Summary of the Invention

[0008] The purpose of this application is to provide a photovoltaic module and a photovoltaic system.

[0009] Specifically, this application involves the following aspects:

[0010] In the first aspect, the present application discloses a photovoltaic module, which includes a laminate and a frame cooperating with the laminate, wherein the frame includes a bearing portion and a blocking portion connected to the bearing portion, the bearing portion and the blocking portion are arranged to form a receiving groove, and along the thickness direction of the laminate, the height of the top of the blocking portion is not higher than the height of the light-receiving surface of the laminate; a first protrusion is provided in the receiving groove, and the first protrusion divides the receiving groove into a first receiving groove and a second receiving groove; along the thickness direction of the laminate, the first protrusion and the top of the blocking portion have a first distance L1, and the first protrusion and the top of the bearing portion have a second distance L2, satisfying 0.2≤L2:L1≤1.2.

[0011] Optionally, the blocking portion includes a blocking portion extending vertically from the end of the bearing portion and a connecting portion extending horizontally from the blocking portion; along the thickness direction of the laminate, the height of the top of the connecting portion is not higher than the height of the light-receiving surface of the laminate.

[0012] Optionally, the laminate includes a front glass, a first adhesive film, a battery string layer, a second adhesive film and a back glass stacked in sequence, the thickness of the back glass is greater than or equal to 1.5 mm and less than or equal to 3 mm, and satisfies 0.8≤L2:L1≤1.1; or, the laminate includes a front glass, a first adhesive film, a battery string layer, a second adhesive film and a back panel stacked in sequence, the thickness of the back panel is greater than or equal to 0.3 mm and less than or equal to 1 mm, and satisfies 0.2≤L2:L1≤0.5.

[0013] Optionally, when the laminate is bonded to the supporting portion, a third distance L3 is present between the adhesive film in the laminate and the end of the supporting portion close to the connecting portion, satisfying 0.5≤L2:L3≤1.5.

[0014] Optionally, when the laminate is a single-glass laminate, 0.6≤L2:L3≤0.8 is satisfied; when the laminate is a double-glass laminate, 0.7≤L2:L3≤0.9 is satisfied.

[0015] Optionally, at least one first bus bar is provided in the laminate, the first bus bar is provided on one side of the laminate, the frame is provided at a position parallel to the laminate and the first bus bar, or the frame is provided at a position perpendicular to the laminate and the first bus bar; there is a fourth distance L4 between the first bus bar and the first protrusion, satisfying 15mm≤L4≤15.4mm.

[0016] Optionally, along the thickness direction of the laminate, a difference between the height of the blocking portion and the height of the laminate is L6, satisfying 0.5 mm ≤ L6 ≤ 1.5 mm.

[0017] Optionally, when the laminate is a single-glass laminate, 0.8 mm ≤ L6 ≤ 1.2 mm is satisfied; when the laminate is a double-glass laminate, 0.5 mm ≤ L6 ≤ 0.9 mm is satisfied.

[0018] Optionally, along the first direction, the width of the connecting portion is L7, which satisfies 3.5 mm ≤ L7 ≤ 5 mm; and / or, along the first direction, the width of the blocking portion is L8, which satisfies 1.1 mm ≤ L8 ≤ 1.5 mm; and / or, along the first direction, the width of the bearing portion is L 13 , meeting 6mm≤L 13 ≤12mm; the first direction is perpendicular to the thickness direction of the laminate and the extension direction of the frame.

[0019] Optionally, a second protrusion is provided on the bearing portion, the second protrusion protrudes toward the direction close to the connecting portion, and the height of the second protrusion is L 10 , meeting 0.2mm≤L 10 ≤1mm; and / or, along the thickness direction of the laminate, the height difference between the end of the second protrusion close to the connecting portion and the end of the connecting portion close to the bearing portion is L 11 , meeting 1.7mm≤L 11 ≤2.7mm; and / or, along the first direction, the distance between the second protrusion and the first protrusion is L 12 , meeting 0.5mm≤L 12 ≤1.5mm; the first direction is perpendicular to the thickness direction of the laminate and the extension direction of the frame.

[0020] In the second aspect, the present application discloses a photovoltaic module, which includes a laminate and a frame cooperating with the laminate, wherein the frame includes: a bearing portion, one end of the bearing portion is provided with a third protrusion; a blocking portion, one end of the blocking portion is connected to the end of the bearing portion away from the third protrusion, and the other end of the blocking portion is provided with a connecting portion, the third protrusion, the bearing portion, the blocking portion and the connecting portion form a receiving groove, and at least one second protrusion is also provided on the bearing portion, and / or at least one first protrusion is also provided on the blocking portion, and the distance between the protrusions is greater than or equal to 0.8 mm; a supporting structure, the supporting structure is connected to the side of the bearing portion away from the receiving groove.

[0021] Optionally, along the length direction of the frame, the length of the second protrusion is equal to or less than the length of the frame, and the length of the first protrusion is equal to or less than the length of the frame.

[0022] Optionally, the third protrusion has a first inclined surface on a side facing the blocking portion, and the distance between the top of the first inclined surface and the blocking portion is smaller than the distance between the bottom of the first inclined surface and the blocking portion.

[0023] Optionally, the angle between the first inclined surface and the bearing portion is greater than or equal to 70° and less than or equal to 80°; and / or, the first inclined surface includes a first arc segment and a second arc segment, the first arc segment is concave at the connection between the first inclined surface and the bearing portion, and the second arc segment is convex at the end of the first inclined surface away from the bearing portion.

[0024] Optionally, the top end of the first protrusion has a first top surface, the first top surface is connected to the first inclined surface, and the end of the first top surface away from the accommodating groove is lower than the connection between the first inclined surface and the first top surface; or, the first top surface is a horizontal surface; and / or, the end of the third protrusion away from the blocking portion protrudes from the side of the support structure.

[0025] Optionally, the inclination angle of the first top surface relative to the horizontal line is greater than or equal to 0° and less than or equal to 5°.

[0026] Optionally, the bearing portion has a first groove surface and a second adjacent groove surface on one side facing the accommodating groove, the first groove surface is connected to the third protrusion, the second groove surface is connected to the blocking portion, the second groove surface is inclined relative to the first groove surface, and the end of the second groove surface close to the first groove surface is higher than the end of the second groove surface close to the blocking portion.

[0027] Optionally, an inclination angle of the second groove surface relative to the first groove surface is greater than or equal to 10° and less than or equal to 20°.

[0028] Optionally, the connecting portion has a second inclined surface on a side facing the supporting portion, the bottom end of the second inclined surface is closer to the supporting portion than the top end of the second inclined surface, and a curved surface is provided at the connection between the second inclined surface and the blocking portion.

[0029] Optionally, the inclination angle of the second inclined surface relative to the horizontal line is greater than or equal to 10° and less than or equal to 20°; and / or, the thickness of the connecting portion gradually decreases in the direction away from the blocking portion, and the minimum thickness of the connecting portion is greater than or equal to 1 mm and less than or equal to 1.5 mm; along the width direction of the bearing portion, the width of the connecting portion is greater than or equal to 3 mm and less than or equal to 3.5 mm.

[0030] Optionally, the free end of the first protrusion is inclined toward the bearing portion; and the inclination angle of the first protrusion relative to the horizontal line is greater than or equal to 10° and less than or equal to 20°.

[0031] Optionally, along the width direction of the blocking portion, the width of the connecting portion is greater than the width of the first protrusion, and the width of the first protrusion does not exceed 0.7 times the width of the connecting portion; or, the difference between the width of the first protrusion and the width of the connecting portion is greater than 0.8 mm.

[0032] Optionally, the side of the blocking portion facing away from the accommodating groove has an arc segment, the starting end of the arc segment is located in the middle area of ​​the blocking portion, the ending end of the arc segment is connected to the root of the connecting portion, and the concave side of the arc segment faces the accommodating groove; the curvature of the arc segment is greater than or equal to 0° and less than or equal to 90°.

[0033] In a third aspect, the present application discloses a photovoltaic module, which includes a frame and a laminate bonded to the frame, the frame including a blocking portion, a bearing portion and a connecting portion, the blocking portion extending vertically from the end of the bearing portion, and the connecting portion extending horizontally from the end of the blocking portion; the bottom wall of the laminate is located on the bearing portion, and the side wall of the laminate abuts against the end of the connecting portion facing away from the blocking portion; the side wall of the laminate, the blocking portion, the connecting portion and the bearing portion together form a receiving groove, along the direction from the top wall to the bottom wall of the laminate, the receiving groove includes a first receiving groove and a second receiving groove arranged in sequence, the first receiving groove and the second receiving groove are connected by a glue flow channel, the orthographic projection area of ​​the first receiving groove on a plane perpendicular to the blocking portion is larger than the orthographic projection area of ​​the second receiving groove on a plane perpendicular to the blocking portion, a first protrusion is provided on the side of the blocking portion close to the laminate, and the gap between the first protrusion and the side wall of the laminate forms the glue flow channel.

[0034] Optionally, along a direction perpendicular to the side wall of the laminate, the width of the glue flow channel is greater than or equal to 0.7 mm and less than or equal to 2 mm.

[0035] Optionally, a ratio of an orthographic projection area of ​​the first accommodating groove on a plane perpendicular to the blocking portion to an orthographic projection area of ​​the second accommodating groove on a plane perpendicular to the blocking portion is greater than or equal to 1.05 and less than or equal to 3.5.

[0036] Optionally, the orthographic projection area of ​​the first receiving groove on a plane perpendicular to the blocking portion is greater than or equal to 2.32 mm. 2 and less than or equal to 8.4 mm 2 and / or, the orthographic projection area of ​​the second receiving groove on a plane perpendicular to the blocking portion is greater than or equal to 1.856 mm 2 and less than or equal to 5.33 mm 2 and / or the difference between the orthographic projection area of ​​the first receiving groove on the plane perpendicular to the blocking portion and the orthographic projection area of ​​the second receiving groove on the plane perpendicular to the blocking portion is greater than or equal to 0.4 mm 2 .

[0037] Optionally, along the thickness direction of the laminate, the maximum height of the accommodating groove is greater than or equal to 3.09 mm and less than or equal to 5.61 mm; and / or, along the direction perpendicular to the side wall of the laminate, the maximum width of the accommodating groove is greater than or equal to 0.3 mm and less than or equal to 5.74 mm.

[0038] In a fourth aspect, the present application discloses a photovoltaic system, which includes the photovoltaic assembly according to any one of the first to third aspects.

[0039] The present application discloses a photovoltaic module and a photovoltaic system, wherein the photovoltaic module includes a laminate and a frame matched with the laminate, the frame includes a bearing portion and a blocking portion connected to the bearing portion, the bearing portion and the blocking portion are arranged to form a receiving groove, and along the thickness direction of the laminate, the height of the top of the blocking portion is not higher than the height of the light-receiving surface of the laminate; a first protrusion is arranged in the receiving groove, and the receiving groove is divided into a first receiving groove and a second receiving groove by the first protrusion; along the thickness direction of the laminate, the ratio of the second distance L2 between the first protrusion and the top of the bearing portion to the first distance L1 between the first protrusion and the top of the blocking portion is set to be greater than or equal to 0.2 and less than or equal to 1.2.

[0040] In this application, due to the special placement of the first protrusion, when the laminate is bonded to the support portion using silicone, the silicone completely fills the second receiving groove, ensuring a reliable bond between the laminate and the frame and a high degree of sealing on the sides of the laminate. Excess silicone can flow from the second receiving groove into the first receiving groove, where it is contained, preventing it from flowing onto the light-receiving surface of the laminate and affecting the appearance of the photovoltaic module and the photovoltaic conversion efficiency of the laminate.

[0041] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following is a brief introduction to the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0043] FIG1 is a schematic diagram showing the structure of a photovoltaic module frame in the prior art;

[0044] FIG2 shows a first diagram of the sealing effect between the photovoltaic module frame and the laminate in the prior art;

[0045] FIG3 shows a second diagram of the sealing effect between the photovoltaic module frame and the laminate in the prior art;

[0046] FIG4 shows a first structural diagram of the photovoltaic assembly according to an embodiment of the present application;

[0047] FIG5 shows a second structural diagram of the photovoltaic assembly according to an embodiment of the present application;

[0048] FIG6 is a first structural diagram of the frame according to an embodiment of the present application;

[0049] FIG7 shows a partially enlarged view of a cross-sectional view of a single-glass photovoltaic module along the KK direction according to an embodiment of the present application;

[0050] FIG8 shows a second partially enlarged cross-sectional view of the double-glass photovoltaic module along the KK direction in an embodiment of the present application;

[0051] FIG9 shows a third partially enlarged cross-sectional view of a single-glass photovoltaic module along the HH direction according to an embodiment of the present application;

[0052] FIG10 shows a partial enlarged view of a cross-sectional view of the double-glass photovoltaic module along the HH direction according to an embodiment of the present application;

[0053] FIG11 is a second structural diagram of the frame according to an embodiment of the present application;

[0054] FIG12 shows a partially enlarged fifth cross-sectional view of a single-glass photovoltaic module along the KK direction according to an embodiment of the present application;

[0055] FIG13 shows a partial enlarged sixth cross-sectional view of a double-glass photovoltaic module along the KK direction according to another embodiment of the present application;

[0056] FIG14 shows a seventh partial enlarged cross-sectional view of a single-glass photovoltaic module along the HH direction according to another embodiment of the present application;

[0057] FIG15 is a partial enlarged view of a cross-sectional view of a double-glass photovoltaic module along the HH direction in another embodiment of the present application;

[0058] FIG16 is a schematic diagram of the cross-sectional structure of the frame described in an embodiment of the present application;

[0059] FIG17 is a structural diagram 1 of the frame and the laminate shown in FIG16 when assembled;

[0060] FIG18 is a second structural diagram of the frame and the laminate shown in FIG16 when assembled;

[0061] FIG19 is a schematic diagram of a cross-sectional structure of a frame in an optional embodiment;

[0062] FIG20 is a second schematic cross-sectional structural diagram of a frame in an optional embodiment;

[0063] FIG21 is a third schematic diagram of the cross-sectional structure of a frame in an optional embodiment;

[0064] FIG22 is a fourth schematic cross-sectional structural diagram of a frame in an optional embodiment;

[0065] FIG23 is a fifth schematic cross-sectional structure diagram of a frame in an optional embodiment;

[0066] FIG24 is a schematic diagram of the cross-sectional structure of a photovoltaic module in one embodiment;

[0067] FIG25 is another schematic cross-sectional view of a photovoltaic module;

[0068] FIG26 is a cross-sectional schematic diagram of a photovoltaic module according to an embodiment of the present application;

[0069] FIG27 is a second cross-sectional schematic diagram of a photovoltaic module according to an embodiment of the present application;

[0070] FIG28 shows a third structural diagram of the photovoltaic assembly according to an embodiment of the present application;

[0071] FIG29 shows a partial cross-sectional view of a photovoltaic module when the long frame is a dust-proof frame;

[0072] FIG30 is a partial cross-sectional view of a photovoltaic module in which the short frame is a dust-proof frame;

[0073] FIG31 is a partial cross-sectional view of a photovoltaic module according to another embodiment of the present application;

[0074] FIG32 shows a partial cross-sectional view of a photovoltaic module according to another embodiment of the present application;

[0075] FIG33 is a partial cross-sectional view of a photovoltaic module according to another embodiment of the present application;

[0076] FIG34 is a schematic diagram showing the position of the shielding member in an embodiment of the present application. Specific embodiments

[0077] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0078] Referring to Figure 1, a structural schematic diagram of the photovoltaic module frame in the prior art is shown; referring to Figure 2, a sealing effect diagram 1 between the photovoltaic module frame and the laminate in the prior art is shown; and referring to Figure 3, a sealing effect diagram 2 between the photovoltaic module frame and the laminate in the prior art is shown.

[0079] As shown in Figure 1, the conventional photovoltaic module frame includes a bottom planar frame 40, a middle connecting frame 50, and a top support frame 60. An inverted vertical hook is provided on the bottom planar frame 40, and a rib-like protrusion, or overflow glue stopper 30, is provided inside the inverted vertical hook. This allows adhesive to be deposited in the overflow glue groove. Because there is a gap between the free end of the overflow glue stopper and the photovoltaic module, the overflow adhesive can flow into the lower overflow glue groove. The lower overflow glue groove not only helps to bond and secure the photovoltaic module glass but also absorbs excess adhesive.

[0080] As shown in FIG2 and FIG3, using the existing photovoltaic module frame, in actual products, the silicone cannot completely fill the overflow glue groove cavity, resulting in poor bonding between the laminate and the frame, and weak load resistance of the entire module.

[0081] Referring to FIG4, a schematic structural diagram of the photovoltaic assembly in the embodiment of the present application is shown; referring to FIG5, a schematic structural diagram of the photovoltaic assembly in the embodiment of the present application is shown; referring to FIG6, a schematic structural diagram of the frame in the embodiment of the present application is shown; referring to FIG7, a partially enlarged view of the cross-sectional view of the single-glass photovoltaic assembly in the KK direction in the embodiment of the present application is shown; referring to FIG8, a partially enlarged view of the cross-sectional view of the double-glass photovoltaic assembly in the KK direction in the embodiment of the present application is shown; referring to FIG9, a partially enlarged view of the cross-sectional view of the single-glass photovoltaic assembly in the embodiment of the present application is shown along the HH direction; referring to FIG10, a partially enlarged view of the cross-sectional view of the double-glass photovoltaic assembly in the embodiment of the present application is shown. A partially enlarged view of the cross-sectional view along the HH direction of the double-glass photovoltaic module; referring to FIG11 , a structural schematic diagram of the frame described in another embodiment of the present application is shown; referring to FIG12 , a partially enlarged view of the cross-sectional view along the KK direction of the single-glass photovoltaic module described in another embodiment of the present application is shown; referring to FIG13 , a partially enlarged view of the cross-sectional view along the KK direction of the double-glass photovoltaic module described in another embodiment of the present application is shown; referring to FIG14 , a partially enlarged view of the cross-sectional view along the HH direction of the single-glass photovoltaic module described in another embodiment of the present application is shown; referring to FIG15 , a partially enlarged view of the cross-sectional view along the HH direction of the double-glass photovoltaic module described in another embodiment of the present application is shown.

[0082] As shown in Figures 4 to 15, an embodiment of the present application discloses a photovoltaic module, including a laminate 20 and a frame 10 cooperating with the laminate 20, the frame 10 including a bearing portion 12 and a blocking portion connected to the bearing portion 12, the bearing portion 12 and the blocking portion are arranged to form a receiving groove 11, along the thickness direction of the laminate 20, the height of the top of the blocking portion is not higher than the height of the light-receiving surface of the laminate 20; a first protrusion 15 is provided in the receiving groove 11, the first protrusion 15 divides the receiving groove 11 into a first receiving groove 111 and a second receiving groove 112; along the thickness direction of the laminate 20, there is a first distance L1 between the first protrusion 15 and the top of the blocking portion, and a second distance L2 between the first protrusion 15 and the top of the bearing portion 12, wherein 0.2≤L2: L1≤1.2.

[0083] As shown in Figures 4 to 15 , the photovoltaic module in the embodiment of the present application includes a frame 10 and a laminate 20. The laminate 20 is connected to the frame 10 so as to be fixed and supported by the frame 10.

[0084] It should be noted that, in order to facilitate the removal of rainwater and wind-blown sand from the surface of the laminate 20, the height of the top of the frame 10 is usually set to be no higher than the top surface of the laminate 20 in the direction perpendicular to the plane where the laminate 20 is located. Photovoltaic modules are usually installed outdoors at an angle, and there are mainly two ways of arrangement: vertical arrangement, that is, the short frame is located at the bottom, as shown in Figure 4. It can also be arranged horizontally, that is, the long frame is located at the bottom, as shown in Figure 5. When the photovoltaic modules are arranged vertically, the frame 10 in the embodiment of the present application is a short frame. When the photovoltaic modules are arranged horizontally, the frame 10 in the embodiment of the present application is a long frame.

[0085] In addition, the long and short frames of the photovoltaic module can also be set to the frame 10 in the embodiment of the present application to improve the appearance of the photovoltaic module. Furthermore, the shading of the laminate 20 can be reduced, thereby improving the photoelectric conversion efficiency of the photovoltaic module.

[0086] For example, along the thickness direction of the laminate 20, the height of the top of the barrier portion can be set to be equal to the height of the light receiving surface of the laminate 20. The height of the top of the barrier portion can also be set to be slightly smaller than the height of the light receiving surface of the laminate 20.

[0087] As shown in Figures 4 to 15 , the frame 10 in the embodiment of the present application includes a supporting portion 12 and a blocking portion connected to the supporting portion 12 . The supporting portion 12 and the blocking portion enclose a receiving groove 11 . When the laminate 20 is bonded to the frame 10 using silicone, the receiving groove 11 can accommodate excess silicone. This prevents the excess silicone from flowing onto the light-receiving surface of the laminate 20, obstructing the laminate 20 and affecting the appearance of the photovoltaic module and the photovoltaic conversion efficiency of the laminate 20.

[0088] As shown in Figures 4 to 15, a first protrusion 15 is provided in the receiving groove 11 in the embodiment of the present application, dividing the receiving groove 11 into a first receiving groove 111 and a second receiving groove 112. Furthermore, along the thickness direction of the laminate 20, the ratio of a second distance L2 between the first protrusion 15 and the top of the bearing portion 12 to a first distance L1 between the first protrusion 15 and the top of the blocking portion is set to be greater than or equal to 0.2 and less than or equal to 1.2.

[0089] It should be noted that when measuring the second distance between the first protrusion 15 and the top of the bearing portion 12 and the first distance between the first protrusion 15 and the top of the blocking portion, the end point of the first protrusion 15 closest to the opening of the accommodating groove 11 is used as the reference point for measurement.

[0090] Furthermore, the vertical dimension of the first protrusion gradually decreases along the A direction, and the end of the first protrusion is arc-shaped, which facilitates a certain guiding effect on the silicone, and the structure can make the first receiving groove 111 and the second receiving groove 112 the largest in size at the opening. During the framing process of the laminate, the silicone can better fill the receiving groove, avoiding the phenomenon of empty glue and resulting in weak adhesion to the laminate, thereby affecting the overall load-bearing capacity.

[0091] Exemplarily, the ratio of the second distance L2 between the first protrusion 15 and the top of the bearing portion 12 to the first distance L1 between the first protrusion 15 and the top of the blocking portion can be set to 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, etc.

[0092] It should be noted that in the embodiment of the present application, along the extension direction of the frame 10, the length of the first protrusion 15 is adapted to the length of the frame 10. For example, along the extension direction of the frame 10, the length of the first protrusion 15 can be set to be equal to the length of the frame 10. Of course, the length of the first protrusion 15 can also be set to be slightly less than the length of the frame 10. This is not a specific limitation, and in actual applications, technicians can set it as needed.

[0093] In addition, in some embodiments of the present application, the area of ​​the first receiving groove 111 is set to be larger than the area of ​​the second receiving groove 112 in a direction perpendicular to the plane where the laminate 20 is located. Among them, the second receiving groove 112 is a lower receiving groove, and the area of ​​the second receiving groove 112 is smaller. It can be understood that the second receiving groove 112 is easily filled with silicone. After the second receiving groove 112 is filled with silicone, the excess silicone will flow into the first receiving groove 111, that is, the upper receiving groove, to fill the first receiving groove 111. The silicone in the first receiving groove 111 can not only accommodate excess silicone, but also prevent excess silicone from overflowing to the surface of the laminate 20. The laminate 20 can also be bonded to the frame 10 to achieve a better sealing effect between the laminate 20 and the frame 10.

[0094] The photovoltaic module disclosed in the embodiments of the present application includes a frame 10, which is provided with a receiving groove 11. The receiving groove 11 is formed by a support portion 12 and a connecting portion 14, which are spaced apart from each other, and a stop portion 13 connected between the support portion 12 and the connecting portion 14. A first protrusion 15 is provided within the receiving groove 11, dividing the receiving groove 11 into a first receiving groove 111 and a second receiving groove 112. Along the thickness direction of the photovoltaic module, the ratio of a second distance L2 between the first protrusion 15 and the end surface of the support portion 12 closest to the connecting portion 14 to a first distance L1 between the first protrusion 15 and the end surface of the connecting portion 14 remote from the support portion 12 is set to be greater than or equal to 0.2 and less than or equal to 1.2. Due to the special positioning of the first protrusion 15, when the laminate 20 is bonded to the support portion 12 using silicone, the silicone can completely fill the second receiving groove 112, thereby ensuring a reliable bond between the laminate 20 and the frame 10 and enhancing the sealing performance of the side surfaces of the laminate 20. The excess silicone can flow from the second receiving groove 112 to the first receiving groove 111, and the first receiving groove 111 can accommodate the excess silicone to prevent the excess silicone from flowing to the light-receiving surface of the laminate 20 and affecting the appearance of the photovoltaic module and the photoelectric conversion efficiency of the laminate 20.

[0095] Furthermore, because the area of ​​the second receiving groove 112 is smaller than that of the first receiving groove 111, the second receiving groove 112 is easily filled with silicone. After the second receiving groove 112 is filled with silicone, the excess silicone will flow into the first receiving groove 111, thereby filling the first receiving groove 111. This allows the silicone in the first receiving groove 111 to better adhere the laminate 20 to the frame 10, thereby improving the sealing effect between the laminate 20 and the frame 10.

[0096] Optionally, as shown in Figures 4 to 15, the blocking portion in the embodiment of the present application includes a blocking portion 13 extending vertically from the end of the load-bearing portion 12 and a connecting portion 14 extending horizontally from the blocking portion 13; along the thickness direction of the laminate 20, the height of the top of the connecting portion 14 is not higher than the height of the light-receiving surface of the laminate 20.

[0097] As shown in Figures 4 to 15 , the blocking portion in this embodiment of the present application includes a blocking portion 13 and a connecting portion 14. The connecting portion 14 is spaced apart from a portion of the load-bearing portion 12, and the blocking portion 13 is connected between the load-bearing portion 12 and the connecting portion 14. The load-bearing portion 12, the blocking portion 13, and the connecting portion 14 enclose a receiving groove 11.

[0098] It should be noted that in the embodiment of the present application, as shown in Figures 4 to 15 , the width of the support portion 12 is greater than the width of the connecting portion 14 along the first direction A. The laminate 20 is placed on the support portion 12 and bonded to the support portion 12 using silicone. As shown in Figures 2 to 13 , after the laminate 20 is bonded to the support portion 12, the side surface of the laminate 20 abuts the connecting portion 14.

[0099] In the embodiment of the present application, the height of the top of the connecting portion 14 is set to be no higher than the height of the light-receiving surface of the laminate 20 along the thickness direction of the laminate 20. This ensures that the frame 10 does not have a light-receiving surface and does not block the light-receiving surface of the laminate 20, thereby improving the photoelectric conversion efficiency of the laminate 20. Furthermore, the deposition of dust, rain, snow, and wind-blown sand in the area of ​​the laminate 20 near the frame 10 can be reduced.

[0100] For example, along the thickness direction of the laminate 20, the height of the top of the connection portion 14 can be set to be equal to the height of the light-receiving surface of the laminate 20. The height of the top of the connection portion 14 can also be set to be slightly smaller than the height of the light-receiving surface of the laminate 20.

[0101] Alternatively, as shown in FIG. 4 to FIG. 15 , when the laminate 20 is a single-glass laminate, the range of L2:L1 is 0.2-0.5, preferably L2:L1=0.3.

[0102] As shown in Figures 4 to 15, when the laminate 20 is a single-glass laminate, the ratio of the second distance L2 between the first protrusion 15 and the top of the carrier portion 12 to the first distance L1 between the first protrusion 15 and the top of the barrier portion is set to 0.3. This allows the silicone to better fill the second receiving groove 112, improves the reliability of the bonding between the laminate 20 and the frame 10, and enhances the sealing performance of the side of the laminate 20.

[0103] Furthermore, excess silicone in the second receiving groove 112 can flow from the second receiving groove 112 to the first receiving groove 111, and the excess silicone is accommodated by the first receiving groove 111 to avoid the excess silicone flowing to the light-receiving surface of the laminate 20, affecting the appearance of the photovoltaic module and the photoelectric conversion efficiency of the laminate 20.

[0104] It should be noted that the laminate 20 in the embodiment of the present application includes a front glass 25, a first adhesive film 23, a battery string 22, a second adhesive film 24, and a backsheet 27, which are stacked in sequence. In other words, the laminate 20 is a single-glass laminate. The thickness of the backsheet 27 is greater than or equal to 0.3 mm and less than or equal to 1 mm. This ensures that the backsheet 27 is sufficiently thick to support the laminate 20, while not being too thick to prevent the silicone from flowing into the second receiving groove 112.

[0105] For example, the thickness of the back plate 27 can be 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, etc. In the embodiment of the present application, there are no excessive restrictions on the specific value of the thickness of the back plate 27. In actual applications, technicians can set the thickness of the back plate 27 to any value between greater than or equal to 0.5 mm and less than or equal to 1 mm.

[0106] Alternatively, as shown in FIG. 4 to FIG. 15 , in the case where the laminate 20 is a double-glass laminate, the range of L2:L1 is 0.6-1.1, preferably L2:L1=1.

[0107] As shown in Figures 4 to 15 , when the laminate 20 is a double-glass laminate, the ratio of the second distance L2 between the first protrusion 15 and the top of the carrier portion 12 to the first distance L1 between the first protrusion 15 and the top of the barrier portion is set to 0.55. This allows the silicone to better fill the second receiving groove 112, improves the reliability of the bonding between the laminate 20 and the frame 10, and enhances the sealing performance of the side of the laminate 20.

[0108] Furthermore, excess silicone in the second receiving groove 112 can flow from the second receiving groove 112 to the first receiving groove 111, and the excess silicone is accommodated by the first receiving groove 111 to avoid the excess silicone flowing to the light-receiving surface of the laminate 20, affecting the appearance of the photovoltaic module and the photoelectric conversion efficiency of the laminate 20.

[0109] It should be noted that the laminate 20 in the embodiment of the present application includes a front glass 25, a first adhesive film 23, a battery string 22, a second adhesive film 24, and a back glass 26, which are stacked in sequence. In other words, the laminate 20 is a double-glass laminate. The back glass 26 has a thickness greater than or equal to 1.5 mm and less than or equal to 3 mm. This ensures that the back glass 26 is sufficiently thick to support the laminate 20, while not being too thick to prevent the silicone from flowing into the second receiving groove 112.

[0110] For example, the thickness of the back glass 26 can be 1.5 mm, 1.7 mm, 2 mm, 2.5 mm, 2.7 mm, 3 mm, etc. In the embodiments of the present application, there are no excessive restrictions on the specific thickness of the back glass 26. In actual applications, technicians can set the thickness of the back glass 26 to any value between greater than or equal to 1.5 mm and less than or equal to 3 mm.

[0111] Optionally, as shown in Figures 4 to 15, when the laminate 20 is bonded to the carrier 12, a third distance L3 is present between the adhesive film in the laminate 20 and the end of the carrier 12 close to the connection portion 14, wherein 0.5≤L2:L3≤1.5.

[0112] The laminate 20 in the embodiment of the present application can be a single-glass laminate or a double-glass laminate. The laminate 20 includes a backsheet 27 or back glass 26, a first adhesive film 23, a battery string 22, a second adhesive film 24, and a front glass 25, which are stacked in sequence. The first adhesive film 23 bonds the backsheet 27 or back glass 26 to one side of the battery string 22, and the second adhesive film 24 bonds the front glass 25 to the other side of the battery string 22. This protects the battery string 22 through the backsheet 27 or back glass 26 and the front glass 25.

[0113] As shown in FIG. 4 to FIG. 15 , when the laminate 20 is bonded to the carrier 12 , the distance between the first adhesive film or the second adhesive film in the laminate 20 and the end of the carrier 12 close to the connection portion 14 is a third distance L3 .

[0114] In an embodiment of the present application, the ratio of the second distance L2 between the first protrusion 15 and the top of the load-bearing portion 12 to the third distance L3 between the first adhesive film or the second adhesive film in the laminate 20 and the end of the load-bearing portion 12 close to the connecting portion 14 is set to be greater than or equal to 0.5 and less than or equal to 1.5.

[0115] For example, the ratio of the second distance L2 between the first protrusion 15 and the top of the support portion 12 to the third distance L3 between the first adhesive film or the second adhesive film in the laminate 20 and the end of the support portion 12 near the connection portion 14 can be set to 0.5, 0.8, 1.0, 1.2, 1.4, 1.5, etc. Of course, the above are only individual examples of the embodiments of the present application and are not intended to limit the present application. In actual applications, technicians can set the ratio to any value greater than or equal to 0.5 and less than or equal to 1.5.

[0116] Silicone is a viscous material with poor fluidity. In this embodiment, the ratio of the second distance L2 between the first protrusion 15 and the top of the support portion 12 to the third distance L3 between the first or second adhesive film in the laminate 20 and the end of the support portion 12 near the connection portion 14 is set to be greater than or equal to 0.5 and less than or equal to 1.5. This allows the silicone in the first and / or second adhesive films to flow smoothly into the second receiving groove 112.

[0117] Furthermore, through the above arrangement, the gap between the laminate 20 and the connecting portion 14 is moderate, the appearance of the photovoltaic module is better, and the reliability of the photovoltaic module is higher.

[0118] Alternatively, as shown in FIG. 4 to FIG. 15 , in the case where the laminate 20 is a single-glass laminate, the range of L2:L3 is 0.6-0.8, preferably L2:L3=0.7.

[0119] As shown in Figures 4 to 15, when the laminate 20 is a single-glass laminate, the ratio of the second distance L2 between the first protrusion 15 and the top of the support portion 12 to the third distance L3 between the first adhesive film or the second adhesive film in the laminate 20 and the end of the support portion 12 near the connection portion 14 is set to 1. This allows the silicone in the first adhesive film and / or the second adhesive film in the single-glass laminate to flow more smoothly into the second receiving groove 112, allowing the second receiving groove 112 to be filled with a sufficient amount of silicone, thereby improving the reliability of the bonding between the laminate 20 and the frame 10 and enhancing the sealing performance of the side of the laminate 20.

[0120] As shown in FIG. 4 to FIG. 15 , in the case where the laminate 20 is a double-glass laminate, L2:L3 is in the range of 0.7-0.9, and optionally, L2:L3=0.8.

[0121] As shown in Figures 4 to 15, when the laminate 20 is a double-glass laminate, the ratio of the second distance L2 between the first protrusion 15 and the top of the support portion 12 to the third distance L3 between the first adhesive film or the second adhesive film in the laminate 20 and the end of the support portion 12 near the connection portion 14 is set to 0.7. This allows the silicone in the first adhesive film and / or the second adhesive film in the double-glass laminate to flow more smoothly into the second receiving groove 112, allowing the second receiving groove 112 to be filled with sufficient silicone, thereby improving the reliability of the bonding between the laminate 20 and the frame 10 and enhancing the sealing performance of the side of the laminate 20.

[0122] Furthermore, through the above arrangement, the gap between the laminate 20 and the connecting portion 14 is moderate, the appearance of the photovoltaic module is better, and the reliability of the photovoltaic module is higher.

[0123] Optionally, as shown in Figures 4 to 15, at least one first bus bar 21 is provided in the laminate 20 in the embodiment of the present application, the first bus bar 21 is provided on one side of the laminate 20, and the frame 10 is provided at a position parallel to the laminate 20 and the first bus bar 21, or the frame 10 is provided at a position perpendicular to the laminate 20 and the first bus bar 21; there is a fourth distance L4 between the first bus bar 21 and the first protrusion 15, wherein 15mm≤L4≤15.4mm.

[0124] As shown in Figures 4 to 15, a first bus bar 21 is provided in the laminate 20 in the embodiment of the present application, and the first bus bar 21 is provided on one side of the laminate 20. Specifically, the laminate 20 has a long side and a short side, and the first bus bar 21 is provided in the area of ​​the laminate 20 close to the short side and is parallel to the short side of the laminate 20. The frame 10 can be provided at a position where the laminate 20 is parallel to the first bus bar 21, that is, the frame 10 is connected to the short side of the laminate 20. Alternatively, the frame 10 can also be provided at a position where the laminate 20 is perpendicular to the first bus bar 21, that is, the frame 10 is connected to the long side of the laminate 20. The first bus bar 21 is connected to at least two battery strings to collect the current generated by the at least two battery strings through the first bus bar 21.

[0125] In the embodiment of the present application, a fourth distance L4 is provided between the first bus bar 21 and the first protrusion 15. The length of the fourth distance L4 is greater than or equal to 15 mm and less than or equal to 15.4 mm. By setting the fourth distance L4 between the first bus bar 21 and the first protrusion 15 to be greater than or equal to 15 mm and less than or equal to 15.4 mm, the creepage distance is increased, thereby better ensuring the insulation performance of the photovoltaic module.

[0126] Illustratively, the fourth distance L4 between the first bus bar 21 and the first protrusion 15 may be set to 15 mm, 15.1 mm, 15.2 mm, 15.3 mm, 15.4 mm, and so on.

[0127] Optionally, a fifth distance L5 is present between the side of the connecting portion 14 away from the blocking portion 13 and the first bus bar 21 , where 11 mm≤L5≤15 mm.

[0128] In the embodiment of the present application, a fifth distance L5 is provided between the side of the connecting portion 14 away from the blocking portion 13 and the first busbar 21, and the fifth distance L5 is set to be greater than or equal to 11 mm and less than or equal to 15 mm to increase the creepage distance and better ensure the insulation performance of the photovoltaic module.

[0129] For example, the fifth distance L5 between the side of the connecting portion 14 away from the blocking portion 13 and the first bus bar 21 can be set to 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, etc.

[0130] Optionally, along the thickness direction of the laminate 20 , a difference between the height of the blocking portion 13 and the height of the laminate 20 is L6, wherein 0.5 mm≤L6≤1.5 mm.

[0131] In the embodiment of the present application, the difference between the height of the blocking portion 13 and the height of the laminate 20 along the thickness direction of the laminate is set to L6, and L6 is set to be greater than or equal to 0.5 mm and less than or equal to 1.5 mm. For example, L6 can be set to 0.5 mm, 0.7 mm, 0.9 mm, 1.1 mm, 1.3 mm, 1.5 mm, etc.

[0132] Since silicone is a viscous material and has poor fluidity. If the difference between the height of the blocking portion 13 and the height of the laminate 20 is small, the normal outflow of the silicone cannot be guaranteed. If the difference between the height of the blocking portion 13 and the height of the laminate 20 is large, the appearance and reliability of the photovoltaic module are affected. Therefore, in the embodiment of the present application, the difference between the height of the blocking portion 13 and the height of the laminate 20 is set to be greater than or equal to 0.5 mm and less than or equal to 1.5 mm. This allows the silicone to flow out smoothly, and the reliability and aesthetics of the photovoltaic module are better.

[0133] Alternatively, in the case where the laminate 20 is a single glass laminate, L6 is in the range of 0.8-1.2 mm, preferably L6=1 mm.

[0134] When laminate 20 is a single-glass laminate, the difference between the height of blocking portion 13 and the height of laminate 20 is set to 1 mm. This allows for smooth silicone flow out of laminate 20. This also enhances the appearance and reliability of the photovoltaic module.

[0135] Alternatively, in the case where the laminate 20 is a double-glass laminate, L6 is in the range of 0.5-0.9 mm, preferably L6=0.7 mm.

[0136] When laminate 20 is a double-glass laminate, the difference between the height of blocking portion 13 and the height of laminate 20 is set to 0.7 mm. This allows for smooth silicone flow when laminate 20 is a double-glass laminate. This also enhances the appearance and reliability of the photovoltaic module.

[0137] Optionally, along the first direction A, the width of the connecting portion 14 is L7, wherein 3.5 mm≤L7≤5 mm; the first direction A is perpendicular to the thickness direction of the laminate 20 and the extension direction of the frame 10 .

[0138] In the embodiment of the present application, the width of the connecting portion 14 is set to be greater than or equal to 3.5 mm and less than or equal to 5 mm along the first direction A perpendicular to the thickness direction of the laminate 20 and the extension direction of the frame 10. For example, along the first direction A, the width of the connecting portion 14 can be set to 3.5 mm, 4 mm, 4.5 mm, 5 mm, etc.

[0139] If the width of the connecting portion 14 along the first direction A is too large, the photovoltaic module's photoelectric conversion efficiency will be low and the manufacturing cost of the photovoltaic module will be high. If the width of the connecting portion 14 along the first direction A is too small, it will be difficult to grasp the photovoltaic module during processing, affecting the processing efficiency of the photovoltaic module. Therefore, in the embodiment of the present application, the width of the connecting portion 14 along the first direction A is set to be greater than or equal to 3.5 mm and less than or equal to 5 mm. This balances the photoelectric conversion efficiency of the photovoltaic module and facilitates the processing of the photovoltaic module.

[0140] Optionally, an end surface of the connecting portion 14 close to the bearing portion 12 has a rubber guiding slope 141 , and an angle between the rubber guiding slope 141 and the first direction A is greater than or equal to 45 degrees and less than or equal to 60 degrees.

[0141] In the embodiment of the present application, a rubber guiding slope 141 is provided on the end surface of the connecting portion 14 near the supporting portion 12, and the angle between the rubber guiding slope 141 and the first direction A is set to be greater than or equal to 45 degrees and less than or equal to 60 degrees. For example, the angle between the rubber guiding slope 141 and the first direction A can be set to 45 degrees, 48 ​​degrees, 52 degrees, 55 degrees, 58 degrees, 60 degrees, etc.

[0142] If the angle between the adhesive guiding slope 141 and the first direction A is too large, the sealing between the side of the laminate 20 and the frame 10 will be poor. If the angle between the adhesive guiding slope 141 and the first direction A is too small, the silicone rubber will easily overflow onto the light-receiving surface of the laminate 20, affecting the photovoltaic conversion efficiency and the appearance of the photovoltaic module. Therefore, in the embodiment of the present application, the angle between the adhesive guiding slope 141 and the first direction A is set to be greater than or equal to 45 degrees and less than or equal to 60 degrees, so as to take into account the sealing between the side of the laminate 20 and the frame 10, and at the same time, prevent the silicone rubber from overflowing onto the light-receiving surface of the laminate 20.

[0143] Optionally, along the first direction A, the width of the blocking portion 13 is L8, wherein 1.1 mm≤L8≤1.5 mm.

[0144] In the embodiment of the present application, the width of the blocking portion 13 is set to be greater than or equal to 1.1 mm and less than or equal to 1.5 mm along the first direction A. For example, along the first direction A, the width of the blocking portion 13 can be set to 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, etc.

[0145] Optionally, the bearing portion 12 is provided with a U-shaped groove 121 , and the distance between the end surface of the laminate 20 close to the bearing portion 12 and the highest point of the U-shaped groove 121 is L9, wherein 0.2 mm≤L9≤1 mm.

[0146] In the embodiment of the present application, a U-shaped groove 121 is provided on the carrier portion 12 , and silicone is filled into the U-shaped groove 121 and onto the end surface of the carrier portion 12 to bond the laminate 20 to the carrier portion 12 via the silicone.

[0147] In the embodiment of the present application, the distance between the end surface of the laminate 20 close to the bearing portion 12 and the highest point of the U-shaped groove 121 is set to L9, and the length of L9 is set to be greater than or equal to 0.2 mm and less than or equal to 1 mm. For example, L9 can be set to 0.2 mm, 0.4 mm, 0.6 mm, 0.8 mm, or 1 mm.

[0148] If the distance between the end face of the laminate 20 close to the bearing portion 12 and the highest point of the U-shaped groove 121 is too large, the weight of the frame 10 will be large, and the amount of silicone used will be large, which will increase the cost of the photovoltaic module. If the distance between the end face of the laminate 20 close to the bearing portion 12 and the highest point of the U-shaped groove 121 is too small, the reliability of the bonding between the laminate 20 and the bearing portion 12 cannot be guaranteed. Therefore, in the embodiment of the present application, the distance L9 between the end face of the laminate 20 close to the bearing portion 12 and the highest point of the U-shaped groove 121 is set to be greater than or equal to 0.2 mm and less than or equal to 1 mm, so that the cost of the photovoltaic module is more reasonable and the bonding between the laminate 20 and the bearing portion 12 is more reliable.

[0149] Optionally, the distance L9 between the end surface of the laminate 20 close to the bearing portion 12 and the highest point of the U-shaped groove 121 may be set to be greater than or equal to 0.2 mm and less than or equal to 0.5 mm.

[0150] Optionally, the end surface of the bearing portion 12 close to the connecting portion 14 is an inclined surface; along the thickness direction of the laminate 20 , the height of the inclined surface close to the blocking portion 13 is less than the height of the inclined surface away from the blocking portion 13 .

[0151] In the embodiment of the present application, the end surface of the supporting portion 12 near the connecting portion 14 is configured as an inclined surface. Along the thickness direction of the laminate 20, the height of the inclined surface near the blocking portion 13 is configured to be smaller than the height of the inclined surface away from the blocking portion 13, so that the silicone rubber can flow more easily into the second receiving groove 112.

[0152] Optionally, a second protrusion 122 is provided on the bearing portion 12, and the second protrusion 122 protrudes toward the direction close to the connecting portion 14, and the height of the second protrusion 122 is L 10 , where 0.2mm≤L 10 ≤1mm.

[0153] In the embodiment of the present application, a second protrusion 122 is provided on the bearing portion 12, and the second protrusion 122 protrudes toward the direction close to the connecting portion 14. Along the thickness direction of the laminate 20, the height L of the second protrusion 122 is 10 The height L of the second protrusion 122 can be set to be greater than or equal to 0.2 mm and less than or equal to 1 mm. 10 Settings include 0.2mm, 0.4mm, 0.6mm, 0.8mm, 1.0mm, etc.

[0154] If the second protrusion 122 is too high, the frame 10 will be heavier, the amount of silicone used will be higher, and the cost of the photovoltaic module will be too high. If the second protrusion 122 is too low, the reliability of the bonding between the laminate 20 and the carrier 12 cannot be guaranteed. Therefore, in the embodiment of the present application, the height L of the second protrusion 122 is increased along the thickness direction of the laminate 20. 10 The thickness is set to be greater than or equal to 0.2 mm and less than or equal to 1 mm, so that the cost of the photovoltaic module is more reasonable and the bonding between the laminate 20 and the carrier 12 is more secure.

[0155] Optionally, along the thickness direction of the laminate 20, the height difference between the end of the second protrusion 122 close to the connecting portion 14 and the end surface of the connecting portion 14 close to the bearing portion 12 is L 11 , where 1.7mm≤L 11 ≤2.7mm.

[0156] Along the thickness direction of the laminate 20, the height difference L between the end of the second protrusion 122 close to the connecting portion 14 and the end surface of the connecting portion 14 close to the bearing portion 12 is 11 The thickness is set to be greater than or equal to 1.7 mm and less than or equal to 2.7 mm to ensure that the film inside the laminate 20 is effectively wrapped by the silicone and the sealing performance of the side of the laminate 20 is better.

[0157] For example, along the thickness direction of the laminate 20, the height difference L between the end of the second protrusion 122 close to the connecting portion 14 and the end surface of the connecting portion 14 close to the bearing portion 12 can be 11 Settings include 1.7mm, 1.9mm, 2.1mm, 2.3mm, 2.5mm, 2.7mm, etc.

[0158] Optionally, along the first direction A, the distance between the second protrusion 122 and the first protrusion 15 is L 12 , where 0.5mm≤L 12 ≤1.5mm; the first direction A is perpendicular to the thickness direction of the laminate 20 and the extension direction of the frame 10.

[0159] In the embodiment of the present application, along the first direction A, the distance L between the second protrusion 122 and the first protrusion 15 is12 The distance L between the second protrusion 122 and the first protrusion 15 is set to be greater than or equal to 0.5 mm and less than or equal to 1.5 mm. 12 Settings include 0.5mm, 0.7mm, 0.9mm, 1.1mm, 1.3mm, 1.5mm, etc.

[0160] If the distance between the second protrusion 122 and the first protrusion 15 along the first direction A is too small, the silicone will not easily flow into the second receiving groove 122. If the distance between the second protrusion 122 and the first protrusion 15 is too large, the silicone consumption will be high, which is not conducive to controlling the cost of the photovoltaic module. Therefore, in the embodiment of the present application, the distance between the second protrusion 122 and the first protrusion 15 along the first direction A is set to be greater than or equal to 0.5 mm and less than or equal to 1.5 mm. This makes it easier for the silicone to flow into the second receiving groove 122, and the cost of the photovoltaic module is more reasonable.

[0161] Optionally, along the first direction A, the width of the carrying portion 12 is L 13 , where 6mm≤L 13 ≤12mm.

[0162] In the embodiment of the present application, the width L of the carrying portion 12 is increased along the first direction A. 13 The thickness is set to be greater than or equal to 6 mm and less than or equal to 12 mm to ensure the reliability of the bonding between the load-bearing portion 12 and the laminate 20 and at the same time, to ensure the load-bearing capacity of the load-bearing portion 12 .

[0163] For example, along the first direction A, the width L of the carrying portion 12 can be 13 Settings include 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, etc.

[0164] During the installation process of the frame of the present application, the silicone is first squeezed near the middle of the load-bearing portion 12, and then the laminate is installed into the frame. The silicone is pushed by the laminate 20 and gradually covers the entire load-bearing portion 12. Due to the rational arrangement of the protrusions, the silicone preferentially fills the second receiving groove 112 completely. As a result, the lower surface of the laminate and the load-bearing portion 12 can be completely filled with silicone, greatly improving the adhesion of the silicone to the laminate and strengthening the overall load-bearing capacity of the assembly. The first receiving groove 111 is used to accommodate excess silicone to prevent it from overflowing onto the light-receiving surface of the laminate 20.

[0165] Referring to Figures 16 to 25 , an embodiment of the present application discloses a photovoltaic module, comprising a laminate 20 and a frame 10 configured to cooperate with the laminate 20. The frame 10 includes a load-bearing portion 12, one end of which is provided with a third protrusion 123; a stop portion 13, one end of which is connected to an end of the load-bearing portion 12 away from the third protrusion 123, and the other end of the stop portion 13 is provided with a connecting portion 14. The third protrusion 123, the load-bearing portion 12, the stop portion 13, and the connecting portion 14 form a receiving groove 11. The load-bearing portion 12 is further provided with at least one second protrusion 122, and / or the stop portion 13 is further provided with at least one first protrusion 15, with the distance between the protrusions being greater than or equal to 0.8 mm. A support structure 16 is connected to the side of the load-bearing portion 12 facing away from the receiving groove 11.

[0166] The distance between the protrusions may be the distance between the third protrusion 123 and the second protrusion 122 , the distance between the connecting portion 14 and the first protrusion 15 , or the distance between any adjacent protrusions.

[0167] When the laminate 20 is assembled with the frame 10, it can be partially disposed in the receiving groove 11, with the third protrusion 123 or the second protrusion 122 abutting against the lower surface 63 of the supporting laminate 20, and the connecting portion 14 abutting against the side of the laminate 20, so that the entire upper surface 64 of the laminate 20 is exposed, avoiding obstruction and reducing the problem of dust accumulation on the upper surface 64 of the laminate 20. The receiving groove 11 is filled with an adhesive layer 70 to bond the laminate 20 and the supporting portion 12 and the blocking portion 13. The provision of the second protrusion 122 and / or the first protrusion 15 can increase the contact area between the receiving groove 11 and the adhesive layer 70, improve the bonding reliability, and also allow the adhesive layer 70 to fully fill the space between adjacent protrusions by limiting the spacing parameters between the protrusions, avoiding the problem that the adhesive layer 70 cannot fill the space between the protrusions, reducing the occurrence of gaps, and ensuring the firmness of the connection between the laminate 20 and the frame 10.

[0168] Optionally, the distance between the convex portions is greater than or equal to 1.5 mm. For example, the distance between the convex portions is greater than or equal to 2 mm, so that the adhesive layer 70 with a higher viscosity can smoothly flow into and fill the space between adjacent convex portions, further reducing the generation of gaps. For another example, the distance between the convex portions can be 0.8 mm, 0.9 mm, 1.0 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm, 2 mm, 2.1 mm, 2.1 mm, 2.2 mm, 2.3 mm, 2.4 mm, 2.5 mm, 2.6 mm, 2.7 mm, 2.8 mm, 2.9 mm, 3 mm, etc.

[0169] Optionally, the distance between the first protrusion 15 and the bearing portion 12 and the distance between the second protrusion 122 and the blocking portion 13 are also greater than or equal to 0.8 mm, or greater than or equal to 1.5 mm. For example, the distance is greater than or equal to 2 mm, so that the adhesive layer 70 can fully fill each space in the receiving groove 11.

[0170] In the embodiment of the present application, the support portion 12 is arranged generally horizontally, and the stop portion 13 is arranged generally vertically. The third protrusion 123 and the second protrusion 122 extend upward from the support portion 12, and the connecting portion 14 and the first protrusion 15 extend from the stop portion 13 toward the side 65 of the laminate 20. The receiving groove 11 formed between the support portion 12 and the stop portion 13 is generally L-shaped. The second protrusion 122 and / or the first protrusion 15 are located within the receiving groove 11 to increase the internal surface area of ​​the receiving groove 11, thereby improving the bonding strength with the adhesive layer 70.

[0171] In other embodiments, a greater number of protrusions may be provided on the bearing portion 12 and / or the blocking portion 13 to further increase the inner surface area of ​​the receiving groove 11, provided that the distance between adjacent protrusions satisfies the aforementioned constraints. For example, the protrusions may be arranged in an array, or may be bent and extended.

[0172] In some embodiments, along the length direction of the frame 10, that is, perpendicular to the paper direction of Figure 16, the length of the second protrusion 122 is equal to or less than the length of the frame 10, and the length of the first protrusion 15 is equal to or less than the length of the frame 10, so that the second protrusion 122 and the first protrusion 15 can fully increase the inner surface area of ​​the accommodating groove 11 while avoiding the second protrusion 122 and the first protrusion 15 protruding in the length direction of the frame 10, thereby maintaining the beautiful appearance of the frame 10 and facilitating transportation and assembly.

[0173] In some embodiments, as shown in Figures 16 to 25, the side of the third protrusion 123 facing the second protrusion 122 has a first inclined surface 1231. The distance between the top of the first inclined surface 1231 and the stop portion 13 is smaller than the distance between the bottom of the first inclined surface 1231 and the stop portion 13, so that the top of the first inclined surface 1231 is tilted relative to the bottom toward the second protrusion 122. The provision of the first inclined surface 1231 allows the adhesive layer 70 to fill the space between the third protrusion 123 and the second protrusion 122, with the adhesive layer 70 being smaller at the top and larger at the bottom, thus providing a gripping effect and preventing the adhesive layer 70 from moving when the laminate 20 is subjected to external forces.

[0174] Specifically, the first inclined surface 1231 is located on the side of the third protrusion 123 facing the receiving groove 11. The included angle A between the first inclined surface 1231 and the supporting portion 12 is 70°-80°, illustratively 75°. The top of the first inclined surface 1231 is disposed toward the retaining portion 13, so that the third protrusion 123 forms a hook-shaped structure at the horizontal end of the receiving groove 11. This restricts both horizontal and vertical movement of the adhesive layer 70 within the receiving groove 11, effectively confining the adhesive layer 70 within the receiving groove 11 and preventing it from slipping, thereby improving the connection reliability between the laminate 20 and the frame 10. In other embodiments, the included angle A between the first inclined surface 1231 and the supporting portion 12 can also be 70°, 71°, 72°, 73°, 74°, 76°, 77°, 78°, 79°, 80°, etc.

[0175] In some embodiments, the first inclined surface 1231 includes a first arc segment 1231a and a second arc segment 1231b. The first arc segment 1231a is concavely disposed at the junction of the first inclined surface 1231 and the first groove surface 17 (the support portion 12), while the second arc segment 1231b is convexly disposed at the end of the first inclined surface 1231 away from the support portion 12. The concave-convex matching structure of the first arc segment 1231a and the second arc segment 1231b gives the side of the third protrusion 123 near the stop portion 13 a similar hook shape, allowing for sufficient contact with the adhesive layer 70 and enhancing the connection reliability between the third protrusion 123 and the adhesive layer 70. During assembly of the laminate 20, the squeezed adhesive layer 70 can also be guided by the second arc segment 1231b to fill the gap between the third protrusion 123 and the laminate 20, allowing the third protrusion 123 to stably support the laminate 20.

[0176] In some embodiments, the first arc segment 1231a and the second arc segment 1231b may be quarter-circle arc segments with a radius of 0.3 mm, and the connection between the first arc segment 1231a and the second arc segment 1231b may be tangent to each other, thereby forming the first inclined surface 1231. It is understood that in other embodiments, the radius and shape of the first arc segment 1231a and the second arc segment 1231b may be adjusted according to design requirements, and the present application is not limited thereto.

[0177] In some embodiments, as shown in Figures 16 to 19, the top of the third protrusion 123 has a first top surface 1232. The first top surface 1232 is connected to the second arc segment 1231b of the first inclined surface 1231, and the end of the first top surface 1232 away from the receiving groove 11 is lower than the connection between the second arc segment 1231b of the first inclined surface 1231 and the first top surface 1232. On the one hand, the inclined first top surface 1232 can conform to the laminate 20 when the laminate 20 is pressed downward, distributing the force on the laminate 20 at the first top surface 1232 and reducing the problem of damage to the laminate 20 caused by stress concentration. On the other hand, the inclined first top surface 1232 can increase the thickness of the adhesive layer 70 between the third protrusion 123 and the laminate 20, thereby improving the cushioning effect on the laminate 20.

[0178] Specifically, the inclination angle D of the first top surface 1232 relative to the horizontal line is 0°-5°, illustratively 4°. The inclination angle D of the first top surface 1232 relative to the horizontal line can also be 0.5°, 1°, 1.5°, 2°, 2.5°, 3°, 3.5°, 4.5°, 5°, etc. Controlling the inclination angle of the first top surface 1232 within a restricted range can avoid the appearance of sharp corners at the top of the third protrusion 123, reducing the risk of stress concentration. In other embodiments, the first top surface 1232 can also be a horizontal plane, in which case the inclination angle D of the first top surface 1232 relative to the horizontal line is 0°, so as to reduce the problem of overflow of the adhesive layer 70. In other embodiments, as shown in Figure 20, the first top surface 1232 of the third protrusion 123 is a horizontal plane, so as to increase the contact area between the third protrusion 123 and the laminate 20, and also to reduce the amount of overflow of the adhesive layer 70.

[0179] In some embodiments, the end of the third protrusion 123 away from the retaining portion 13 protrudes from the side of the support structure 16. From the perspective of Figure 16, the right side of the third protrusion 123 protrudes from the right side of the support structure 16, so that the third protrusion 123 protrudes beyond the bottom of the support structure 16. This not only increases the support area of ​​the frame 10 for the laminate 20, but also prevents the adhesive layer 70 in the receiving groove 11 from overflowing onto the support structure 16.

[0180] In some embodiments, the side of the bearing portion 12 facing the receiving groove 11 has adjacent first and second groove surfaces 17 and 18, that is, the upper side of the bearing portion 12 has the first and second groove surfaces 17 and 18. The first groove surface 17 is connected to the third protrusion 123, and the second groove surface 18 is connected to the blocking portion 13. The second groove surface 18 is tilted relative to the first groove surface 17, and the end of the second groove surface 18 close to the first groove surface 17 is higher than the end of the second groove surface 18 close to the blocking portion 13. The tilted second groove surface 18 can increase the volume of the receiving groove 11, allowing more adhesive layer 70 to be filled in the receiving groove 11, while improving the bonding strength and acting as a buffer for the laminate 20. In addition, from the perspective of Figure 16, the second groove surface 18, which is lower on the left and higher on the right, can also cause the adhesive layer 70 to have a tendency to move toward the blocking portion 13, reducing the probability of the adhesive layer 70 escaping from the receiving groove 11.

[0181] In some embodiments, the first groove surface 17 is arranged horizontally, and the second groove surface 18 has an inclination angle B relative to the first groove surface 17 of 10°-20°, illustratively 15°. By limiting the size of the inclination angle B, the strength of the retaining portion 13 can be maintained while preventing the adhesive layer 70 from being stored in the receiving groove 11. In other embodiments, the inclination angle B of the second groove surface 18 relative to the first groove surface 17 can also be 10°, 11°, 12°, 13°, 14°, 16°, 17°, 18°, 19°, 20°, etc.

[0182] In some embodiments, as shown in Figures 16, 17, 18, 19, 22, and 23, the first groove surface 17 and the second groove surface 18 are separated by a second protrusion 122. The second protrusion 122 is located between the first groove surface 17 and the second groove surface 18, and is approximately in the middle of the support portion 12. This ensures a relatively uniform amount of adhesive on both sides of the second protrusion 122 and increases the spacing between adjacent protrusion structures, allowing the adhesive layer 70 to enter and fill the space between adjacent protrusions.

[0183] In other embodiments, as shown in Figures 20 and 21, the second protrusion 122 is eliminated from the middle portion of the support portion 12 of the frame 10, and the first groove surface 17 and the second groove surface 18 of the support portion 12 are directly connected. This can increase the volume of the receiving groove 11, increase the filling amount of the adhesive layer 70, and further enhance the bonding strength between the frame 10 and the laminate 20.

[0184] The second protrusion 122 has a first side surface 1221 on the side facing the third protrusion 123, and a second side surface 1222 on the side facing away from the third protrusion 123. The distance between the first side surface 1221 and the second side surface 1222 gradually increases as the protrusion moves away from the support portion 12. This creates a tapered protrusion structure that is wider at the top and narrower at the bottom, providing a grip for the adhesive. The second protrusion 122 also separates and blocks the adhesive layer 70 within the receiving groove 11, further limiting its movement within the receiving groove 11.

[0185] In some embodiments, a curved surface is provided at the connection between the first side surface 1221 and the first groove surface 17, and a curved surface is provided at the connection between the second side surface 1222 and the second groove surface 18, so that the adhesive layer 70 can fully fill the space between the second protrusion 122 and the supporting portion 12, reducing the generation of bubbles or gaps.

[0186] In some embodiments, the second protrusion 122 can have a bilaterally symmetrical structure, and the first side surface 1221 and the second side surface 1222 have the same inclination angle C relative to the horizontal plane, which is 70°-80°, illustratively 75°. The inclination angle C of the first side surface 1221 and the second side surface 1222 relative to the horizontal plane can also be 70°, 71°, 72°, 73°, 74°, 76°, 77°, 78°, 79°, 80°, etc.

[0187] In some embodiments, the end face of the second protrusion 122 can also be an arc surface, which can be connected to the first side surface 1221 and the second side surface 1222 in an arc shape. When the laminate 20 is assembled into the accommodating groove 11, a small amount of the adhesive layer 70 can be squeezed to move and adhere to the end surface of the second protrusion 122, forming an adhesive layer between the second protrusion 122 and the laminate 20, which is beneficial to improving the connection strength between the second protrusion 122 and the laminate 20, and can also play a buffering role.

[0188] In some embodiments, the height of the second protrusion 122 is greater than the height of the third protrusion 123. In some embodiments, the height of the second protrusion 122 is 1.5-1.6 mm, and the height difference between the second protrusion 122 and the third protrusion 123 does not exceed 0.5 mm, such as 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, etc. Specifically, it can be 0.3-0.5 mm, such as 0.3 mm, 0.35 mm, 0.4 mm, 0.45 mm, 0.5 mm, etc. In this way, when the second protrusion 122 contacts the lower surface 63 of the top laminate 20, a gap is formed between the third protrusion 123 and the laminate 20, which can serve as a buffer space between the third protrusion 123 and the laminate 20, as shown in Figures 17 and 18. The adhesive layer 70 can be filled between the third protrusion 123 and the laminate 20 as a buffer medium to reduce stress concentration when the laminate 20 is subjected to external force, so that the laminate 20 will not be broken by the resistance force of the frame 10.

[0189] In some embodiments, as shown in FIG23 , the height of the second protrusion 122 is less than the height of the third protrusion 123 in a direction away from the support portion 12, and the top of the third protrusion 123 is a horizontal plane. That is, the first top surface 1232 of the third protrusion 123 is a horizontal plane. The height difference between the second protrusion 122 and the third protrusion 123 is 0.4-1.2 mm, and can also be 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1 mm, 1.1 mm, 1.2 mm, or a range consisting of any two of these values. Thus, the horizontal first top surface 1232 can increase the contact area between the third protrusion 123 and the lower surface 63 of the laminate 20, optimizing the load. The second protrusion 122 with a reduced height can form a space between the second protrusion 122 and the lower surface 63 of the laminate 20, and the adhesive layer 70 can fill this space. On the one hand, it can increase the capacity of the adhesive layer 70, enhance the bonding force and the firmness of the connection. On the other hand, it can form a buffer layer between the top of the second protrusion 122 and the lower surface 63 of the laminate 20, thereby reducing the impact on the laminate 20.

[0190] In some embodiments, the connecting portion 14 has a second inclined surface 142 on the side opposite the supporting portion 12. The bottom of the second inclined surface 142 is closer to the supporting portion 12 than the top of the second inclined surface 142, causing the second inclined surface 142 to tilt upward. Furthermore, a curved surface is provided at the connection between the second inclined surface 142 and the second side panel retaining portion 13. Thus, when the laminate 20 is assembled into the receiving slot 11, the connecting portion 14 can prevent the adhesive layer 70 from flowing upward and contaminating the surface of the laminate 20. The second inclined surface 142 guides the adhesive layer 70 to fill the space between the retaining portion 13, the connecting portion 14, and the side of the laminate 20, thereby improving adhesion. The inclination angle E of the second inclined surface 142 relative to the horizontal is also between 10° and 20°, exemplarily 15°, and can be as low as 10°, 11°, 12°, 13°, 14°, 16°, 17°, 18°, 19°, 20°, and so on. Thus, the upwardly inclined second bevel 142 can improve the fluidity of the adhesive layer 70 on the stop portion 13 during assembly, increase the volume of the receiving groove 11 on the stop portion 13, fill more adhesive layer 70, and thus improve the adhesion between the frame 10 and the laminate 20. Under conditions of assembly process tolerance, the second bevel 142 can also guide a small amount of squeezed adhesive layer 70 to move and adhere to the end surface of the connecting portion 14, filling the micro-gap between the connecting portion 14 and the side surface 65 of the laminate 20.

[0191] In some embodiments, the thickness of the connecting portion 14 gradually decreases. That is, the farther away from the blocking portion 13, the thinner the connecting portion 14 becomes. This allows the base of the connecting portion 14 to have better stress-bearing conditions while guiding the adhesive layer 70 to fill the top of the connecting portion 14, reducing gaps, improving the connection reliability between the laminate 20 and the frame 10, and reducing the weight of the frame 10 to a certain extent.

[0192] Optionally, along the height direction of the blocking portion 13, the minimum thickness of the connecting portion 14 is 1-1.5 mm, so that the connecting portion 14 can not only serve as a glue barrier, but also avoid the contact area between the connecting portion 14 and the laminate 20 being too small, thereby reducing the risk of damage to the laminate 20. The minimum thickness of the connecting portion 14 can also be 1 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, or 1.5 mm. Along the width direction of the blocking portion 13, the width of the connecting portion 14 is 3-3.5 mm, illustratively 3.2 mm, to meet the installation requirements of the frame 10. The width of the connecting portion 14 can be 3 mm, 3.1 mm, 3.2 mm, 3.3 mm, 3.4 mm, 3.5 mm, etc.

[0193] In some embodiments, a first protrusion 15 is further provided on the side of the blocking portion 13 facing the receiving groove 11. The first protrusion 15 is spaced apart from the connecting portion 14. The distance between the first protrusion 15 and the connecting portion 14 is greater than or equal to 0.8 mm, or greater than or equal to 1.5 mm, and illustratively, greater than or equal to 2 mm. The distance between the first protrusion 15 and the connecting portion 14 can be 0.8 mm, 0.9 mm, 1.0 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm, 2 mm, 2.1 mm, 2.1 mm, 2.2 mm, 2.3 mm, 2.4 mm, 2.5 mm, 2.6 mm, 2.7 mm, 2.8 mm, 2.9 mm, 3 mm, etc. The free end of the first protrusion 15 is inclined toward the supporting portion 12. That is, the end of the first protrusion 15 away from the blocking portion 13 is inclined toward the supporting portion 12. The first protrusion 15 has an inclination angle relative to the horizontal of 10°-20°, illustratively 15°. Specifically, the first protrusion 15 has a third slope 151 on the side closest to the connection portion 14. The top of the third slope 151 is closer to the support portion 12 than the bottom of the third slope 151, resulting in the third slope 151 being tilted downward as a whole. The first protrusion 15 serves to prevent the upward flow of the adhesive layer 70, preventing excessive adhesive 70 from flowing into the connection portion 14 and causing adhesive overflow. The downwardly inclined third slope 151 can induce a downward movement of the adhesive layer 70 between the connection portion 14 and the first protrusion 15, further preventing the adhesive layer 70 from flowing upward. The inclination angle F of the third slope 151 relative to the horizontal is also 10°-20°, illustratively 15°, and can also be 10°, 11°, 12°, 13°, 14°, 16°, 17°, 18°, 19°, 20°, and so on.

[0194] The first protrusion 15 further has a fourth inclined surface 152 on the side facing away from the connecting portion 14. The inclination direction and angle of the fourth inclined surface 152 can be the same as those of the third inclined surface 151, so that the first protrusion 15 presents an overall downward inclination. This allows for a larger space in the third recess 115 formed between the connecting portion 14 and the first protrusion 15, allowing a sufficient amount of adhesive layer 70 to fill the third recess 115. In this way, a hook-shaped structure can be formed between the first protrusion 15 and the blocking portion 13, preventing the adhesive layer 70 bonded to the blocking portion 13 from moving horizontally, thereby improving the bonding reliability between the blocking portion 13 and the laminate 20.

[0195] In some embodiments, the top of the connecting portion 14 extends beyond the top of the first protrusion 15. That is, along the width direction of the supporting portion 12, the width of the connecting portion 14 is greater than the width of the first protrusion 15, and the width of the first protrusion 15 does not exceed 0.7 times the width of the connecting portion 14. For example, the width of the first protrusion 15 is 0.7 times, 0.6 times, 0.5 times, 0.4 times, 0.3 times, 0.2 times, etc., of the width of the connecting portion 14.

[0196] In some embodiments, the difference between the width of the first protrusion 15 and the width of the connecting portion 14 is greater than 0.8 mm, and is illustratively 0.95-1 mm. For example, the difference between the width of the first protrusion 15 and the width of the connecting portion 14 is 0.8 mm, 0.82 mm, 0.84 mm, 0.86 mm, 0.88 mm, 0.92 mm, 0.93 mm, 0.95 mm, 0.96 mm, 0.97 mm, 0.98 mm, 0.99 mm, or 1 mm. In this way, when the connecting portion 14 abuts against the side 65 of the laminate 20, a gap exists between the top of the first protrusion 15 and the side 65 of the laminate 20, forming a buffer space. The adhesive layer 70 can smoothly enter the first adhesive groove 111 above the first protrusion 15. At the same time, the buffer space is filled with the adhesive layer 70, which not only prevents the edge of the laminate 20 from colliding with the first protrusion 15 and causing fragmentation, but also improves the bonding and fixing effect.

[0197] In some embodiments, the side of the retaining portion 13 near the receiving groove 11 includes a first connecting section 131 and a second connecting section 132. The first connecting section 131 connects between the second inclined surface 142 and the third inclined surface 151, and the first connecting section 131, the second inclined surface 142, and the third inclined surface 151 are all formed with curved surfaces. The second connecting section 132 connects between the fourth inclined surface 152 and the second groove surface 18, and the second connecting section 132, the fourth inclined surface 152, and the second groove surface 18 are all formed with curved surfaces. The arc connection structure between these surface areas ensures that the adhesive layer 70 fully contacts the retaining portion 13.

[0198] Referring again to Figures 16, 17, and 18, in the embodiment of the present application, the receiving groove 11 includes a first recess 113, a second recess 114, and a third recess 115. The first recess 113 is formed between the first inclined surface 1231, the first groove surface 17, and the first side surface 1221. The second recess 114 is formed between the second side surface 1222, the second groove surface 18, the second connecting section 132, and the first protrusion 15. The third recess 115 is formed between the second inclined surface 142, the first connecting section 131, and the third inclined surface 151. When the laminate 20 is assembled with the frame 10, a certain amount of glue is injected into the first recessed portion 113 and the second recessed portion 114. The amount of glue in the second recessed portion 114 is greater than the amount of glue in the third recessed portion 115. When the laminate 20 is pushed into the frame 10, the first inclined surface 1231 of the third protrusion 123 plays a role in grabbing the glue under the pressure of the laminate 20. The excess glue in the first recessed portion 113 and the second recessed portion 114 flows toward the third recessed portion 115. The connecting portion 14 prevents the glue layer 70 from flowing upward. At the same time, the second inclined surface 142 of the connecting portion 14 guides a small amount of glue layer 70 to fill the micro gap between the connecting portion 14 and the side 65 of the laminate 20.

[0199] In some embodiments, as shown in Figures 19 and 20 , the side of the blocking portion 13 facing away from the receiving groove 11 has an arcuate segment 133. The starting end of the arcuate segment 133 is located in the middle area outside the blocking portion 13, and the terminating end of the arcuate segment 25 is connected to the root of the connecting portion 14, with the concave side of the arcuate segment 133 facing the receiving groove 11.

[0200] In the view shown in Figure 19, the upper end of the retaining portion 13 is formed into a curved arc, the top of which connects to the arc-shaped base of the connecting portion 14. This makes the outer structure of the frame 10 smoother, more aesthetically pleasing, and reduces the risk of collision during assembly. Furthermore, the curved structure on the outer side of the retaining portion 13 also reduces its volume to a certain extent, saving manufacturing materials.

[0201] In some embodiments, the arc segment 133 has an arc angle of 0°-90°. By restricting the arc angle of the arc segment 133, the connection between the arc segment 133 and the connecting portion 14 can be formed into a circular arc transition while preventing the top of the connecting portion 14 from tilting downward. This allows the top of the connecting portion 14 to remain flush with the laminate 20 as much as possible, reducing dust accumulation at the edge of the laminate 20. The frame 10 shown in Figure 19 is substantially identical to the embodiment shown in Figure 16 in other respects, and will not be further described here. The frame 10 shown in Figure 20, with the exception of the second protrusion 122, is substantially identical to the embodiment shown in Figure 19 in other respects.

[0202] In some embodiments, as shown in Figures 16, 17, 18, 21, 22, and 23, the connecting portion 14 extends in a horizontal direction, and the upper outer surface of the connecting portion 14 is roughly perpendicular to the outer surface of the blocking portion 13, so that the connecting portion 14 is connected to the blocking portion 13 to form an L-shaped structure, so as to enhance the effect of the connecting portion 14 in blocking the upward outflow of the adhesive layer 70.

[0203] Referring again to FIG. 16 , in some embodiments, the support structure 16 of the frame 10 includes a first support plate 161, a second support plate 162, and a third support plate 163. The first support plate 161 and the second support plate 162 are spaced apart and disposed on a side of the support portion 12 facing away from the receiving groove 11. The third support plate 163 connects the first support plate 161 and the second support plate 162 at ends away from the support portion 12. Specifically, the first support plate 161 and the second support plate 162 can be disposed in a vertical direction, and the third support plate 163 can be disposed in a horizontal direction. A frame structure is formed between the first support plate 161, the support portion 12, the second support plate 162, and the third support plate 163, serving as a base for the frame 10 and supporting the laminate 20 assembled in the receiving groove 10.

[0204] In the embodiment of the present application, the bearing portion 12, the blocking portion 13, and the support structure 16 are integrally formed and can be formed by casting, sheet metal processing, etc. In other embodiments, the bearing portion 12, the blocking portion 13, and the support structure 16 can also be separate structures and fixedly connected by welding or other methods to meet the design requirements, and this application is not limited to this.

[0205] In some embodiments, referring to FIG. 22 , the frame 10 shown in FIG. 22 is substantially the same as that shown in FIG. 16 , except that the length of the third support plate 163 in the embodiment shown in FIG. 22 is shorter than that of the third support plate 163 in FIG. 16 . The length of the third support plate 163 can be adjusted according to design requirements to accommodate different installation requirements.

[0206] Referring to Figures 24 and 25, the embodiments of the present application further disclose a photovoltaic module, comprising a laminate 10 and a frame 10 in any of the above embodiments or combinations of embodiments. The edge of the laminate 20 is fixed to the receiving groove 11 of the frame 10 by an adhesive layer 70. The third protrusion 123 or the second protrusion 122 of the frame 10 abuts against the lower surface 63 of the laminate 20, and the connecting portion 14 of the frame 10 abuts against the side 65 of the laminate 20. Along the height direction of the blocking portion 13, the connecting portion 14 is not higher than the upper surface 64 of the laminate 20, preventing the formation of a step surface at the edge of the upper surface 64 and causing dust accumulation. The upper surface 64 of the laminate 20 is completely exposed from the receiving groove 11, thereby avoiding the problem of dust accumulation on the upper surface 64 of the laminate 20 due to partial obstruction.

[0207] In some embodiments, the laminate 20 is a rectangular sheet structure, and different types of frames 10 are assembled on the long and short sides of the laminate 20. Specifically, the relatively long frames 10 of the third support plate 163 are assembled on the long sides of the laminate 20, and the relatively short frames 10 of the third support plate 163 are assembled on the short sides of the laminate 20. This matches the installation requirements at different positions of the laminate 20, allowing the long and / or short sides of the laminate 20 to be assembled with the frames 10 described in the above embodiments.

[0208] In some embodiments, adhesive layer 70 may be a structural adhesive that has good structural strength, can withstand heavy loads, and is resistant to aging, fatigue, and corrosion, providing stable performance over its expected lifespan. Adhesive layer 70 may also bond with the adhesive layer of laminate 20 to enhance bonding strength.

[0209] In some embodiments, the adhesive layer 70 may also partially penetrate between the cover plate and the back plate of the laminate 20 to further increase the contact area between the adhesive layer 70 and the laminate 20 and improve the connection reliability.

[0210] Please refer to Figures 26 and 27. The photovoltaic module provided in the embodiment of the present application includes a frame 10 and a laminate 20 bonded to the frame 10, that is, the edge of the laminate 20 is fixed to the frame 10 by bonding. Specifically, the frame 10 includes a blocking portion 13, a bearing portion 12, and a connecting portion 14. The connecting portion 14 and the bearing portion 12 are located on the same side of the blocking portion 13, that is, the connecting portion 14 and the bearing portion 12 are both located on the side of the blocking portion 13 close to the laminate 20, and the bearing portion 12 and the connecting portion 14 are arranged relative to each other. Specifically, the bearing portion 12 and the connecting portion 14 can be arranged in sequence along the thickness direction of the laminate 20, and the bearing portion 12 and the connecting portion 14 are arranged relative to each other at intervals. The connecting portion 14 is fixedly connected to the top of the blocking portion 13. The connecting portion 14 and the blocking portion 13 can be an integral structure, or the connecting portion 14 and the blocking portion 13 can be fixedly connected by welding, screw connection, interference fit, etc. The bearing portion 12 is fixedly connected to the stop portion 13, and the connection between the stop portion 13 and the bearing portion 12 is located between the top and bottom ends of the stop portion 13. The bearing portion 12 and the stop portion 13 can be an integral structure, or the bearing portion 12 and the stop portion 13 can be fixedly connected by welding, screw connection, interference fit, etc.

[0211] The bottom wall of the laminate 20 is located on the supporting portion 12, which is mainly used to support the bottom wall of the laminate 20. During the bonding process, the adhesive will flow into the gap between the bottom wall of the laminate 20 and the supporting portion 12. In addition, the side wall of the laminate 20 abuts against the end of the connecting portion 14 facing away from the blocking portion 13. One end of the connecting portion 14 is fixedly connected to the top of the blocking portion 13, and the other end of the connecting portion 14 abuts against the side wall of the laminate 20. The abutment between the side wall of the laminate 20 and the end of the connecting portion 14 facing away from the blocking portion 13 includes the situation where the side wall of the laminate 20 directly contacts and abuts against the end of the connecting portion 14 facing away from the blocking portion 13, and the situation where there is adhesive between the side wall of the laminate 20 and the end of the connecting portion 14 facing away from the blocking portion 13 but is not in direct contact.

[0212] The sidewalls, retaining portions 13, connecting portions 14, and supporting portions 12 of the laminate 20 collectively form a receiving groove 11. Specifically, the space between the sidewalls, retaining portions 13, connecting portions 14, and supporting portions 12 of the laminate 20 forms the receiving groove 11. From the top wall to the bottom wall of the laminate 20, the receiving groove 11 includes a first receiving groove 111 and a second receiving groove 112 arranged sequentially. Specifically, from top to bottom, the receiving groove 11 includes the first receiving groove 111 and the second receiving groove 112 arranged sequentially, and the first receiving groove 111 and the second receiving groove 112 are connected by a glue flow channel 116.

[0213] In the photovoltaic module provided in the present application, the side walls of the laminate 20 are against the connecting portion 14, and the edge of the top surface of the laminate 20 is not blocked, that is, the light-facing surface of the laminate 20 is not blocked by the frame 10, which can effectively prevent dust accumulation at the edge of the laminate 20.

[0214] During the process of bonding the frame 10 and the laminate 20, glue can be directly injected into the second receiving groove 112, and the adhesive enters the first receiving groove 111 through the glue flow channel 116, and finally the adhesive fills the first receiving groove 111, the second receiving groove 112, and the gap between the support portion 12 and the bottom wall of the laminate 20. During the glue injection process, since the adhesive enters the first receiving groove 111 through the glue flow channel 116, the glue flow channel 116 can control the speed and amount of the adhesive flowing into the first receiving groove 111 on the upper side. The glue flow channel 116 forms a buffering and regulating effect on the adhesive entering the first receiving groove 111, which can improve the problem of excessive and rapid adhesive entering the first receiving groove 111 and causing the adhesive to overflow and flow to the top surface of the laminate 20. At the same time, the adhesive fills the first receiving groove 111, the second receiving groove 112 and the glue flow channel 116, making the bonding between the frame 10 and the laminate 20 more firm and the side gluing effect of the laminate 20 better.

[0215] The orthographic projection area of ​​the first receiving groove 111 on a plane perpendicular to the blocking portion 13 is larger than the orthographic projection area of ​​the second receiving groove 112 on a plane perpendicular to the blocking portion 13. With this arrangement, the capacity of the first receiving groove 111 is greater than that of the second receiving groove 112, allowing the adhesive to fill the second receiving groove 112 more quickly. After filling the second receiving groove 112, the adhesive continues to flow into the gap between the first receiving groove 111 and the bottom wall of the laminate 20 and the supporting portion 12, facilitating the adhesive to fill the first receiving groove 111, the second receiving groove 112, and the gap between the bottom wall of the laminate 20 and the supporting portion 12, thereby ensuring the bonding effect between the laminate 20 and the frame 10. Furthermore, the larger capacity of the first receiving groove 111 can prevent excessive adhesive from overflowing from the first receiving groove 111 and flowing onto the top surface of the laminate 20.

[0216] In a specific embodiment, the width of the glue flow channel 116 is 0.7mm-2mm along the direction perpendicular to the side wall of the laminate 20. Considering that the glue flow channel 116 is too wide, it cannot play a buffering role for the adhesive entering the first receiving groove 111, and the adhesive is likely to overflow to the front of the laminate 20; if the glue flow channel 116 is too narrow, the efficiency of glue injection will be reduced, thereby affecting the production efficiency of the photovoltaic module, and will also result in less glue on the side of the laminate 20, and poor sealing and bonding effects. Therefore, the width of the glue flow channel 116 is set within a reasonable range of 0.7mm-2mm to ensure that the amount of adhesive entering the first receiving groove 111 and the flow rate are moderate, further avoiding glue overflow on the front, ensuring the thickness of the glue on the side of the laminate 20, and improving the sealing and bonding effects of the laminate 20. Exemplarily, the width of the glue flow channel 116 is 0.7 mm, 0.8 mm, 0.9 mm, 1 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm or 2 mm.

[0217] As shown in Figures 26 and 27, along the thickness direction of the laminate 20, the glue flow channel 116 is closer to the bottom wall of the laminate 20. Specifically, along the thickness direction of the laminate 20, the glue flow channel 116 is closer to the supporting portion 12 and farther away from the connecting portion 14. With the above technical solution, the adhesive can fill the second receiving groove 112 more quickly. After filling the second receiving groove 112, the adhesive continues to flow into the gap between the first receiving groove 111 and the bottom wall of the laminate 20 and the supporting portion 12, which is conducive to the adhesive filling the first receiving groove 111, the second receiving groove 112, and the gap between the bottom wall of the laminate 20 and the supporting portion 12, thereby ensuring the bonding effect between the laminate 20 and the frame 10. At the same time, the first receiving groove 111 accommodates more adhesive, which can improve the bonding strength between the frame 10 and the upper portion of the laminate 20 and improve the bonding reliability of the laminate 20. Of course, along the thickness direction of the laminate 20 , the glue flow channel 116 may also be provided closer to the top wall of the laminate 20 , or the glue flow channel 116 may be flush with the middle position of the thickness of the laminate 20 , which is not limited here.

[0218] As shown in Figures 26 and 27, a first protrusion 15 is provided on the side of the blocking portion 13 near the laminate 20. The gap between the first protrusion 15 and the side wall of the laminate 20 forms a glue flow channel 116, that is, the adhesive enters the first receiving groove 111 through the gap between the first protrusion 15 and the side wall of the laminate 20. Alternatively, the side wall of the laminate 20 may be provided with a first protrusion 15, and the gap between the first protrusion 15 and the blocking portion 13 forms a glue flow channel 116, that is, the adhesive enters the first receiving groove 111 through the gap between the first protrusion 15 and the blocking portion 13. Alternatively, a first protrusion 15 is provided on both the side of the blocking portion 13 near the laminate 20 and the side wall of the laminate 20, and the gap between the two first protrusions 15 forms a glue flow channel 116, that is, the adhesive enters the first receiving groove 111 through the gap between the first protrusion 15 on the blocking portion 13 and the first protrusion 15 on the side wall of the laminate 20. Specifically, the first protrusion 15 may be provided only on the retaining portion 13, or only on the sidewall of the laminate 20, or both on the retaining portion 13 and the sidewall of the laminate 20, with the first protrusion 15 forming the glue flow channel 116. The first protrusion 15 and the retaining portion 13 or the sidewall of the laminate 20 may be integrally formed, or they may be fixedly connected to the retaining portion 13 or the sidewall of the laminate 20 by welding, screw connection, interference fit, or the like. The above technical solution provides a simple structure and facilitates fabrication.

[0219] In the above embodiment, the first protrusion 15 provided on the blocking portion 13 gradually tilts away from the supporting portion 12 along the direction approaching the laminate 20, that is, the first protrusion 15 on the blocking portion 13 gradually tilts diagonally upward. Along the direction approaching the blocking portion 13, the first protrusion 15 provided on the laminate 20 gradually tilts away from the supporting portion 12, that is, the first protrusion 15 on the side wall of the laminate 20 also gradually tilts diagonally upward. With this arrangement, the first protrusion 15 can better guide the adhesive to flow into the first receiving groove 111, which is conducive to the adhesive being evenly filled into the first receiving groove 111 and the second receiving groove 112, thereby improving the firmness of the bond between the frame 10 and the laminate 20.

[0220] The ratio of the orthographic projection area of ​​the first receiving groove 111 on a plane perpendicular to the blocking portion 13 to the projected area of ​​the second receiving groove 112 on a plane perpendicular to the blocking portion 13 is 3.5 to 1.05. This arrangement further improves the bonding effect between the laminate 20 and the frame 10 and controls the distribution of the adhesive on the sides and bottom of the laminate 20. Furthermore, this ratio further controls adhesive overflow from the front of the laminate 20.

[0221] Exemplarily, the ratio of the orthographic projection area of ​​the first accommodating groove 111 on the plane perpendicular to the blocking portion 13 to the projection area of ​​the second accommodating groove 112 on the plane perpendicular to the blocking portion 13 is 1.05, 1.2, 1.4, 1.5, 1.6, 1.8, 2.0, 2.2, 2.5, 2.8, 3.0, 3.2, 3.4 or 3.5.

[0222] Furthermore, the orthographic projection area of ​​the first receiving groove 111 on the plane perpendicular to the blocking portion 13 is 2.32 mm 2 -8.4mm 2 The orthographic projection area of ​​the second receiving groove 112 on the plane perpendicular to the blocking portion 13 is 1.856 mm 2 -5.33mm 2 Considering that if the capacity of the first receiving groove 111 and the second receiving groove 112 is too large, the adhesive will be wasted, and if the capacity of the first receiving groove 111 and the second receiving groove 112 is too small, the firmness of the bonding between the frame 10 and the laminate 20 cannot be guaranteed, the orthographic projection area of ​​the first receiving groove 111 on the plane perpendicular to the blocking portion 13 is set at 2.32mm 2 -8.4mm 2 The orthographic projection area of ​​the second receiving groove 112 on the plane perpendicular to the blocking portion 13 is set to 1.856mm within a reasonable range. 2 -5.33mm 2 The reasonable range is used to ensure the firmness of the bonding between the frame 10 and the laminate 20, improve the glue overflow on the front side of the laminate 20, and prevent the waste of adhesive.

[0223] For example, the orthographic projection area of ​​the first receiving groove 111 on the plane perpendicular to the blocking portion 13 is 2.32 mm 2 , 2.4mm 2 , 2.5mm 2 , 2.8mm 2 , 3.0mm 2 , 3.2mm 2 , 3.5mm 2 , 3.8mm 2 , 4.0mm 2 , 4.2mm 2 , 4.5mm 2 , 4.8mm 2 , 5.0mm 2 , 5.2mm 2 , 5.5mm 2 , 5.8mm 2 , 6.0mm 2 , 6.2mm 2 , 6.5mm 2 , 6.8mm 2 , 7.0mm 2 , 7.2mm 2 , 7.5mm 2 , 7.8mm 2 , 8.0mm 2 , 8.2mm 2 or 8.4mm 2 The orthographic projection area of ​​the second receiving groove 112 on the plane perpendicular to the blocking portion 13 is 1.856 mm 2 , 2.0mm 2 , 2.2mm 2 , 2.5mm 2 , 2.8mm 2 , 3.0mm 2 , 3.2mm 2 , 3.5mm 2 , 3.8mm 2 , 4.0mm 2 , 4.2mm 2 , 4.5mm 2 , 4.8mm 2 , 5.0mm 2 , 5.2mm 2 or 5.33mm 2 .

[0224] In addition, the difference between the orthographic projection area of ​​the first receiving groove 111 on the plane perpendicular to the blocking portion 13 and the orthographic projection area of ​​the second receiving groove 112 on the plane perpendicular to the blocking portion 13 is greater than or equal to 0.4 mm. 2. In this way, when the capacity difference between the first receiving groove 111 and the second receiving groove 112 is within this range, it can further prevent excessive adhesive from entering the first receiving groove 111 in a short period of time and the adhesive from overflowing and flowing to the top surface of the laminate 20. For example, the difference between the orthographic projection area of ​​the first receiving groove 111 on the plane perpendicular to the blocking portion 13 and the orthographic projection area of ​​the second receiving groove 112 on the plane perpendicular to the blocking portion 13 is 0.4mm 2 , 0.5mm 2 , 0.6mm 2 wait.

[0225] As shown in Figures 26 and 27, along the thickness direction of laminate 20, the maximum height of accommodating groove 11 is 3.09mm-5.61mm.Wherein, the maximum height of accommodating groove 11 refers to the maximum extension distance of accommodating groove 11 along the thickness direction of laminate 20.If the maximum height of accommodating groove 11 is too high, then bonding glue easily overflows and flows to the top surface of laminate 20. If the maximum height of accommodating groove 11 is too small, then the firmness of bonding between the sidewall of laminate 20 and frame 10 cannot be guaranteed. Therefore, the maximum height of accommodating groove 11 is set within the reasonable range of 3.09mm-5.61mm.Exemplary, the maximum height of accommodating groove 11 is 3.09mm, 3.2mm, 3.5mm, 3.8mm, 4.0mm, 4.2mm, 4.5mm, 4.8mm, 5.0mm, 5.2mm, 5.5mm or 5.61mm.

[0226] In the direction perpendicular to the side wall of the laminate 20, the maximum width of the accommodating groove 11 is 0.3mm-5.74mm. Wherein, the maximum width of the accommodating groove 11 refers to the maximum extension distance of the accommodating groove 11 in the direction perpendicular to the side wall of the laminate 20. Considering that the maximum width of the accommodating groove 11 is too wide, the adhesive is wasted, and the maximum width of the accommodating groove 11 is too narrow, the firmness of the bond between the frame 10 and the laminate 20 cannot be guaranteed. Therefore, the maximum width of the accommodating groove 11 is set within a reasonable range of 0.3mm-5.74mm. At this time, the amount of adhesive can be further regulated to improve the adhesive overflow and flow to the top surface of the laminate 20, while ensuring the firmness and sealing effect of the bond between the side wall of the laminate 20 and the frame 10. Exemplary, the maximum width of the accommodating groove 11 is 0.3mm, 3.2mm, 3.5mm, 3.8mm, 4.0mm, 4.2mm, 4.5mm, 4.8mm, 5.0mm, 5.2mm, 5.5mm or 5.74mm.

[0227] Optionally, an adhesive layer 70 is provided between the bottom wall of the laminate 20 and the supporting portion 12, as well as on the sidewalls of the laminate 20. The peel strength between the adhesive layer 70 and the laminate 20 is greater than or equal to 20 N / cm. In this case, the reliability of the bond between the laminate 20 and the frame 10 can be further ensured throughout the life cycle of the photovoltaic module, preventing the laminate 20 from falling off the frame. For example, the peel strength between the adhesive layer 70 and the laminate 20 is 20 N / cm, 21 N / cm, 22 N / cm, 23 N / cm, 25 N / cm, etc.

[0228] In addition, the thickness of the adhesive layer 70 between the bottom wall of the laminate 20 and the load-bearing portion 12 is 0.9mm-1.1mm. The thickness of the adhesive layer 70 on the side wall of the laminate 20 is 0.3mm-5.74mm. The adhesive can provide better bonding strength at this thickness. Of course, the thickness of the adhesive layer 70 can be set arbitrarily according to actual conditions. Specifically, the thickness of the adhesive layer 70 between the bottom wall of the laminate 20 and the load-bearing portion 12 is 0.9mm, 0.95mm, 1.0mm, 1.05mm or 1.1mm. The thickness of the adhesive layer 70 on the side wall of the laminate 20 is 0.3mm, 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm or 5.74mm.

[0229] For example, a first protrusion 15 is provided on the blocking portion 13 of the frame 10, and the width of the glue flow channel 161 is 0.7mm-2mm, and for example is 1.3mm. The orthographic projection area of ​​the first receiving groove 111 on the plane perpendicular to the blocking portion 13 is 6.4mm. 2 -8.4mm 2 The orthographic projection area of ​​the second receiving groove 112 on the plane perpendicular to the blocking portion 13 is 3.33 mm 2 -5.33mm 2 Along the thickness direction of the laminate 20, the maximum height of the accommodating groove 11 is 3.09mm-5.09mm; along the direction perpendicular to the side wall of the laminate 20, the maximum width of the accommodating groove 11 is 1.74mm-5.74mm.

[0230] For example, a first protrusion 15 is provided on the stop portion 13 of the frame 10, and the width of the glue flow channel 161 is 0.7mm-2mm, and for example is 0.7mm. The orthographic projection area of ​​the first receiving groove 111 on the plane perpendicular to the stop portion 13 is 2.32mm. 2 -4.32mm 2 The orthographic projection area of ​​the second receiving groove 112 on the plane perpendicular to the blocking portion 13 is 1.856 mm 2 -3.856mm 2, along the thickness direction of the laminate 20, the maximum height of the accommodating groove 11 is 3.3mm-5.3mm; along the direction perpendicular to the side wall of the laminate 20, the maximum width of the accommodating groove 11 is 0.3mm-4.3mm.

[0231] For example, a first protrusion 15 is provided on the stop portion 13 of the frame 10, and the width of the glue flow channel 161 is 0.7mm-2mm, and for example is 0.7mm. The orthographic projection area of ​​the first receiving groove 111 on the plane perpendicular to the stop portion 13 is 4.06mm. 2 -6.06mm 2 The orthographic projection area of ​​the second receiving groove 112 on the plane perpendicular to the blocking portion 13 is 1.72 mm 2 -3.72mm 2 Along the thickness direction of the laminate 20, the maximum height of the accommodating groove 11 is 3.61mm-5.61mm; along the direction perpendicular to the side wall of the laminate 20, the maximum width of the accommodating groove 11 is 0.54mm-4.54mm.

[0232] Optionally, the connecting portion 14 abuts against the side wall of the laminate 20, and the top of the connecting portion 14 is the side of the connecting portion 14 facing away from the bearing portion 12. The top of the connecting portion 14 can be flush with the top surface of the laminate 20 or lower than the top surface of the laminate 20. In this arrangement, rainwater can flow directly down from the laminate 20, thereby removing dust. That is, rainwater will not be blocked by the frame 10 in the process of flushing dust, thereby improving the dust removal effect of the photovoltaic module frame 10.

[0233] Furthermore, the thickness of the connecting portion 14 gradually increases or decreases as it moves away from the blocking portion 13. When the thickness of the connecting portion 14 increases, the thickness is greatest where the connecting portion 14 abuts the sidewall of the laminate 20. This arrangement creates a larger contact area between the connecting portion 14 and the sidewall of the laminate 20, preventing stress concentration and damage to the laminate 20. When the thickness of the connecting portion 14 decreases, the space in the receiving groove 11 can be further increased, reducing glue overflow from the front. Of course, the thickness of the connecting portion 14 can also remain consistent, and this is not limited here.

[0234] As shown in FIG26 , the top wall of the carrier portion 12 may be provided with an adhesive-receiving groove. This allows more adhesive to flow between the top wall of the carrier portion 12 and the bottom wall of the laminate 20, further improving the bond strength between the top wall of the carrier portion 12 and the bottom wall of the laminate 20. One or more adhesive-receiving grooves may be provided, and the shape of the adhesive-receiving grooves may be square, circular, or the like, without limitation.

[0235] As shown in FIG27 , the top wall of the support portion 12 is provided with a second protrusion 122 and / or a third protrusion 123. The second protrusions 122 and the third protrusions 123 support the bottom wall of the laminate 20, thereby facilitating more adhesive to flow into the gaps around the second protrusions 122 and the third protrusions 123, thereby improving the bond strength between the top wall of the support portion 12 and the bottom wall of the laminate 20. One or more second protrusions 122 and the third protrusions 123 may be provided, and the top surfaces of the second protrusions 122 and the third protrusions 123 are preferably flat, thereby increasing the support area of ​​the second protrusions 122 and the third protrusions 123 and preventing stress concentration and hidden cracks in the bottom wall of the laminate 20.

[0236] The frame 10 and the laminate 20 may be bonded together by structural adhesive and / or silicone, and a suitable adhesive may be selected according to actual conditions.

[0237] After the photovoltaic module is installed, the two short sides of the laminate 20 are distributed vertically and the two long sides are distributed horizontally. Therefore, the frame 10 can be bonded to the short sides of the laminate 20. In this way, the lower edge of the laminate 20 is not blocked by the frame 10, and rainwater can flow directly from the lower edge of the laminate 20, thereby removing dust. That is, rainwater will not be blocked by the frame 10 in the process of flushing dust, which improves the dust removal effect of the photovoltaic module frame 10. Of course, the frame 10 can also be bonded to the long sides of the laminate 20. In this way, the two side edges of the laminate 20 are not blocked by the frame 10, and some rainwater can flow directly from the two side edges of the laminate 20, thereby removing dust.

[0238] In the above embodiments, the frame 10 can be made of aluminum alloy or steel to protect the laminate 20. The retaining portion 13, the connecting portion 14 and the bearing portion 12 included in the frame 10 can be integrally formed or separately manufactured and then fixedly connected by welding or other methods.

[0239] As shown in Figures 26 and 27, the frame 10 may further include a first support plate 161, a third support plate 163, and a second support plate 162. The top of the first support plate 161 is fixedly connected to the blocking portion 13, the bottom of the first support plate 161 is fixedly connected to the third support plate 163, the top of the second support plate 162 is fixedly connected to the bottom wall of the supporting portion 12, and the bottom of the second support plate 162 is fixedly connected to the third support plate 163. In this way, the second support plate 162 and the first support plate 161 jointly support the supporting portion 12, making the frame 10 more stable. Reinforcing ribs may be provided on the bottom of the supporting portion 12 and the top of the third support plate 163.

[0240] In addition, the present invention also provides a photovoltaic system comprising any of the photovoltaic modules provided in the above embodiments. Compared with the prior art, the photovoltaic system provided in the present invention has the same beneficial effects as the photovoltaic modules described above, which will not be described in detail here.

[0241] The photovoltaic system may further include a rooftop or floating installation platform, so that the photovoltaic components can be installed on a rooftop or on the water surface, and of course can also be installed on the ground, which is not limited here.

[0242] Referring to Figure 28, there is shown a structural schematic diagram of the photovoltaic assembly described in an embodiment of the present application; referring to Figure 29, there is shown a partial cross-sectional view of the photovoltaic assembly when the long frame is an anti-dust frame; referring to Figure 30, there is shown a partial cross-sectional view of the photovoltaic assembly when the short frame is an anti-dust frame; referring to Figure 31, there is shown a partial cross-sectional view of the photovoltaic assembly described in another embodiment of the present application; referring to Figure 32, there is shown a partial cross-sectional view of the photovoltaic assembly described in yet another embodiment of the present application; referring to Figure 33, there is shown a partial cross-sectional view of the photovoltaic assembly described in yet another embodiment of the present application; referring to Figure 34, there is shown a schematic diagram of the position of the shielding member described in an embodiment of the present application.

[0243] As shown in Figures 28 to 34, the embodiment of the present application discloses a laminate, which includes a back glass 26, a first adhesive film 23, a battery string group 22, a second adhesive film 24 and a front glass 25 stacked in sequence, wherein the back glass 26 is connected to the back of the battery string group 22 through the first adhesive film 23, and the front glass 25 is connected to the front of the battery string group 22 through the second adhesive film 24; along the extension direction of the laminate 20, there is a sixth distance D1 between the edge of the battery string group 22 and the edge of the laminate 20; the laminate Component 20 also includes a shielding member 28, which is connected to the area near the edge of the laminate 20. Along the extension direction of the laminate 20, the shielding member 28 has a first side 284 and a second side 285 that are relatively arranged. There is a seventh distance D2 between the first side 284 and the edge of the laminate 20, and the seventh distance D2 is greater than or equal to the sixth distance D1. There is an eighth distance D3 between the second side 285 and the edge of the laminate 20, and the eighth distance D3 is greater than or equal to 0 mm and less than or equal to 2 mm.

[0244] As shown in Figures 28 to 34 , along the thickness direction of the laminate 20, the laminate 20 comprises a back glass 26, a first adhesive film 23, a battery string 22, a second adhesive film 24, and a front glass 25 stacked in sequence. The battery string 22 is the core component of the laminate 20, and it converts solar energy into electricity. The back glass 26 is connected to the back of the battery string 22 via the first adhesive film 23, and the front glass 25 is connected to the front of the battery string 22 via the second adhesive film 24. Thus, the back glass 26 and the front glass 25 support and protect the battery string 22, thereby improving the reliability of the photovoltaic module.

[0245] It should be noted that the front side of the battery string group 22 is the light-receiving side of the battery string group 22, that is, the side of the battery string group 22 facing the sunlight. The back side of the battery string group 22 is the backlight side of the battery string group 22, that is, the side of the battery string group 22 facing away from the sunlight.

[0246] The battery string 22 comprises a plurality of cells arranged at intervals and connected in series or in parallel via electrical connectors to form a battery string. The battery string is then laid flat within the laminate 20, thereby forming the battery string 22 within the laminate 20. The battery string 22 absorbs solar energy and converts it into electrical energy.

[0247] As shown in Figures 28 to 34, along the extension direction of the laminate 20, there is a sixth distance D1 between the edge of the battery string group 22 and the edge of the laminate 20. In other words, along the extension direction of the laminate 20, the battery string group 22 does not extend to the edge of the laminate 20. In the embodiment of the present application, the setting of the sixth distance D1 can position the battery string group 22 inside the laminate 20, preventing the battery string group 22 from being too close to the edge of the laminate 20, which may cause water to enter the battery string group 22 and cause a short circuit.

[0248] As shown in Figures 28 to 34, the laminate 20 disclosed in the embodiment of the present application further includes a shielding member 28. The shielding member 28 is connected to a region near the edge of the laminate 20. Along the extension direction of the laminate 20, the shielding member 28 has a first side 284 and a second side 285 that are oppositely disposed. As shown in Figure 34, along the extension direction of the laminate 20, the first side 284 of the shielding member 28 is a side relatively far from the edge of the laminate 20, and the second side 285 of the shielding member 28 is a side relatively close to the edge of the laminate 20. A seventh distance D2 is defined between the first side 284 and the edge of the laminate 20.

[0249] In the embodiment of the present application, the seventh distance D2 is set to be greater than or equal to the sixth distance D1, so that the edge area of ​​the battery string group 22 close to the laminate 20 can be shielded by the shielding member 28, avoiding the adhesive layer 70 that bonds the laminate 20 to the frame 10 from being seen from the outside of the photovoltaic module, thereby improving the appearance consistency of the photovoltaic module and making the photovoltaic module more beautiful.

[0250] As shown in FIG31 , in this embodiment of the present application, an eighth distance D3 is defined between the second side 285 of the shielding member 28 and the corresponding edge of the laminate 20. The eighth distance D3 is greater than or equal to 0 mm and less than or equal to 2 mm. For example, the eighth distance D3 may be 0 mm, 0.5 mm, 0.8 mm, 1 mm, 1.2 mm, 1.5 mm, 1.7 mm, 2 mm, etc.

[0251] In the embodiment of the present application, an eighth distance D3 is defined between the second side 285 of the shielding member 28 and the edge of the laminate 20. This eighth distance D3 is set to be greater than or equal to 0 mm and less than or equal to 2 mm. The setting of this eighth distance D3 can improve the reliability of the photovoltaic module and prevent the setting of the shielding member 28 from affecting the reliability of the photovoltaic module.

[0252] It should be noted that the shielding member 28 in the embodiment of the present application can be disposed within the laminate 20, that is, between the front glass 25 and the back glass 26, or can be attached to the surface of the laminate 20. For example, the shielding member 28 can be attached to the side of the back glass 26 away from the battery string group 22. In the embodiment of the present application, there are no additional restrictions on the specific location of the shielding member 28. In actual applications, technicians can arrange it as needed.

[0253] In addition, it should be noted that the shielding member 28 in the embodiment of the present application can be a tape, polyethylene foam, a glazed layer, or an insulating strip. In the embodiment of the present application, there are no excessive restrictions on the specific material of the shielding member 28. In actual applications, technicians can also select an appropriate material according to their needs.

[0254] To further enhance the appearance consistency of the photovoltaic module, in the embodiment of the present application, the color of the shielding member 28 can be set to be consistent with the color of the laminate 20. For example, if the laminate 20 is black, the shielding member 28 can also be set to black to achieve a more consistent overall appearance of the photovoltaic module. Of course, to enhance the appearance of the photovoltaic module, the color of the shielding member 28 can also be set to be different from the color of the laminate 20. For example, if the laminate 20 is black, the shielding member 28 can be set to white, or the shielding member 28 can be set to red.

[0255] Optionally, the difference between the seventh distance D2 and the sixth distance D1 is greater than or equal to 1 mm.

[0256] As shown in FIG34 , in an embodiment of the present application, the difference between the seventh distance D2 between the first side 284 of the shielding member 28 and the edge of the laminate 20 and the sixth distance D1 between the edge of the cell string 22 and the corresponding edge of the laminate 20 is set to be greater than or equal to 1 mm. During the process of attaching the shielding member 28 to the laminate 20, or during the lamination of the laminate 20, the first adhesive film 23 and the second adhesive film 25 flow, causing the cell string 22 to shift. Misalignment between the cell string 22 and the shielding member 28 is prone to occur. If misalignment occurs, a gap will appear between the cell string 22 and the shielding member 28, affecting the appearance of the photovoltaic module. Therefore, in an embodiment of the present application, the difference between the seventh distance D2 and the sixth distance D1 is optionally set to be greater than or equal to 1 mm. This redundant design can improve the fault tolerance of the photovoltaic module without increasing costs, thereby further improving the appearance consistency and aesthetics of the photovoltaic module.

[0257] For example, the difference between the seventh distance D2 and the sixth distance D1 can be 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, etc. In the embodiment of the present application, there are no excessive restrictions on the specific difference between the seventh distance D2 and the sixth distance D1, and any value greater than or equal to 1 mm is acceptable. In actual applications, technicians can set it as needed.

[0258] Optionally, as shown in Figures 29 to 34, the sixth distance D1 in the embodiment of the present application is greater than or equal to 18 mm and less than or equal to 22 mm; the width of the shielding member 28 is greater than or equal to 16 mm and less than or equal to 23 mm.

[0259] As shown in Figures 29 to 34, in an embodiment of the present application, along the extension direction of the laminate 20, a sixth distance D1 between the edge of the battery string group 22 and the edge of the laminate 20 is set to be greater than or equal to 18 mm and less than or equal to 22 mm to improve the reliability of the laminate 20.

[0260] For example, along the extension direction of the laminate 20 , the sixth distance D1 between the edge of the battery string 22 and the edge of the laminate 20 may be set to 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, and so on.

[0261] As shown in Figures 29 to 34 , in the embodiment of the present application, the width of the shielding member 28 is set to be greater than or equal to 16 mm and less than or equal to 23 mm along the extension direction of the laminate 20. This width of the shielding member 28 is greater than the sixth distance D1, thereby shielding the gap between the edge of the battery string 22 and the edge of the laminate 20 by the shielding member 28, thereby improving the appearance consistency of the photovoltaic module.

[0262] For example, along the extension direction of the laminate 20 , the width of the shielding member 28 may be set to 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 22 mm, 23 mm, and so on.

[0263] Optionally, as shown in Figures 29 and 31, the shielding member 28 in the embodiment of the present application includes a first shielding member 281, wherein the first shielding member 281 is arranged between the first adhesive film 23 and the second adhesive film 24, or the first shielding member 281 is arranged between the first adhesive film 23 and the back glass 26.

[0264] As shown in Figures 29 and 30, in this embodiment of the present application, a first shielding member 281 can be positioned near the edge of the laminate 20 and between the first adhesive film 23 and the second adhesive film 24. That is, both the battery string 22 and the first shielding member 281 are positioned between the first adhesive film 23 and the second adhesive film 24, and along the extension direction of the laminate 20, the first shielding member 281 at least partially overlaps the battery string 22. This allows the first shielding member 281 to block the gap between the edge of the battery string 22 and the edge of the laminate 20, thereby improving the appearance consistency of the photovoltaic module.

[0265] As shown in FIG31 , in the embodiment of the present application, a first shielding member 281 can also be positioned near the edge of the laminate 20, and between the back glass 26 and the first adhesive film 23. Furthermore, the first shielding member 281 has a projection on the plane where the battery string 22 is located, and this projection can cover the gap between the edge of the battery string 22 and the edge of the laminate 20. Thus, the first shielding member 281 can block the gap between the edge of the battery string 22 and the edge of the laminate 20, thereby improving the appearance consistency of the photovoltaic module.

[0266] It should be noted that the first shielding member 281 in the embodiment of the present application may be a tape, polyethylene foam, or an insulating gasket. If the first shielding member 281 is a tape, polyethylene foam, or insulating gasket, the tape, polyethylene foam, or insulating gasket may be disposed between the first adhesive film 23 and the second adhesive film 24, or between the first adhesive film 23 and the back glass 26.

[0267] Of course, the above are only individual examples of the specific material and specific configuration of the first shielding member 281 and are not intended to limit the present application. In actual applications, technicians can also select appropriate materials as the first shielding member 281 as needed.

[0268] Optionally, as shown in Figures 32 and 33, the shielding member 28 in the embodiment of the present application includes a second shielding member 282 and a third shielding member 283, wherein the second shielding member 282 is connected to the area of ​​the back glass 26 close to the edge of the laminate 20, and the third shielding member 283 is arranged in the laminate 20; on the plane where the battery string group 22 is located, the third shielding member 283 has a first projection, and the second shielding member 282 has a second projection, the first projection is located between the battery string group 22 and the second projection, and the first projection at least partially falls within the battery string group 22 and the second projection.

[0269] As shown in Figures 32 and 33, in this embodiment of the present application, a second shielding member 282 can be connected to the area of ​​the back glass 26 near the edge of the laminate 20. Specifically, as shown in Figure 31, the second shielding member 282 can be connected to the front of the back glass 26 near the edge of the laminate 20. As shown in Figure 32, the second shielding member 282 can also be connected to the back of the back glass 26 near the edge of the laminate 20. A third shielding member 283 is disposed within the laminate 20.

[0270] On the plane where the battery string group 22 is located, the third shielding member 283 has a first projection, and the second shielding member 282 has a second projection. The first projection is located between the battery string group 22 and the second projection, and the first projection at least partially falls within the battery string group 22 and the second projection. Thus, the second shielding member 282 and the third shielding member 283 can block the gap between the edge of the battery string group 22 and the edge of the laminate 20.

[0271] It should be noted that the second shielding member 282 in the embodiment of the present application can be one of adhesive tape, polyethylene foam, and insulating gaskets. The third shielding member 283 can be one of adhesive tape, polyethylene foam, glaze coating, and insulating gaskets. The material of the second shielding member 282 can be the same as that of the third shielding member 283, or the material of the second shielding member 282 can be different from that of the third shielding member 283. In this regard, the embodiment of the present application does not impose any specific restrictions. In actual applications, technicians can set the specific materials of the second shielding member 282 and the third shielding member 283 as needed.

[0272] Alternatively, as shown in FIG. 32 and FIG. 33 , along the extension direction of the laminate 20 , the sum of the width of the second blocking member 282 and the width of the third blocking member 283 is greater than the sixth distance D1 .

[0273] As shown in Figures 32 and 33 , in this embodiment of the present application, the sum of the widths of the second shielding member 282 and the third shielding member 283 along the extension direction of the laminate 20 is set to be greater than the sixth distance D1. The second shielding member 282 and the third shielding member 283 block the gap between the battery string 22 and the edge of the laminate 20, thereby improving the appearance consistency of the photovoltaic module and making the photovoltaic module more aesthetically pleasing.

[0274] Optionally, as shown in Figures 32 and 33, the second shielding member 282 and the third shielding member 283 in the embodiment of the present application are both connected to the back glass 26; and the second shielding member 282 and the third shielding member 283 are located on the same side of the back glass 26, or, the second shielding member 282 and the third shielding member 283 are located on different sides of the back glass 26.

[0275] As shown in FIG32 , in the embodiment of the present application, the second shielding member 282 can be connected to the front area of ​​the back glass 26 near the edge of the back glass 26, and the third shielding member 283 can be connected to the front area of ​​the back glass 26 near the edge of the second shielding member 282. The second shielding member 282 and the third shielding member 283 are located on the same side of the back glass 26, and the projections of the second shielding member 282 and the third shielding member 283 on the plane where the battery string group 22 is located overlap with the battery string group 22. In this way, the second shielding member 282 and the third shielding member 283 can block the gap between the edge of the battery string group 22 and the edge of the laminate 20.

[0276] As shown in FIG33 , in an embodiment of the present application, the second shielding member 282 can be connected to the back surface of the rear glass 26 near the edge of the rear glass 26, and the third shielding member 283 can be connected to the front surface of the rear glass 26, with the projection of the third shielding member 283 on the rear glass 26 overlapping the projection of the second shielding member 282 on the rear glass 26. The second shielding member 282 and the third shielding member 283 are positioned on opposite sides of the rear glass 26. Furthermore, the projections of the second shielding member 282 and the third shielding member 283 on the plane where the battery string group 22 is located overlap with the battery string group 22. Thus, the second shielding member 282 and the third shielding member 283 can block the gap between the edge of the battery string group 22 and the edge of the laminate 20.

[0277] For example, as shown in Figures 32 and 33, the second shielding member 282 in the embodiment of the present application may be a glaze layer, and the third shielding member 283 may be an adhesive tape. The glaze layer is attached to the side of the back glass 26 close to the battery string group 22, or the glaze layer is attached to the side of the back glass 26 away from the battery string group 22; the adhesive tape is attached to the side of the back glass 26 close to the battery string group 22.

[0278] As shown in FIG32 , in an embodiment of the present application, the glaze layer can be connected to the front of the back glass 26 near the edge of the back glass 26, and the tape can be connected to the front of the back glass 26 near the edge of the glaze layer. The glaze layer and the tape are located on the same side of the back glass 26, and the projections of the glaze layer and the tape on the plane where the battery string 22 is located overlap with the battery string 22. Thus, the gap between the edge of the battery string 22 and the edge of the laminate 20 can be blocked by the glaze layer and the tape.

[0279] As shown in FIG33 , in an embodiment of the present application, the glaze layer can be attached to the back surface of the rear glass 26 near the edge of the rear glass 26, and the tape can be attached to the front surface of the rear glass 26, with the projection of the tape on the rear glass 26 overlapping the projection of the glaze layer on the rear glass 26. The glaze layer and the tape are positioned on opposite sides of the rear glass 26. Furthermore, the projections of the glaze layer and the tape on the plane where the battery string 22 is located overlap with the battery string 22. Thus, the gap between the edge of the battery string 22 and the edge of the laminate 20 can be blocked by the glaze layer and the tape.

[0280] Of course, the above embodiment of configuring the second shielding member 282 as a glaze layer and configuring the third shielding member 283 as a tape is merely an example of the present application and does not limit the present application. In actual applications, technicians can also choose the specific materials of the second shielding member 282 and the third shielding member 283.

[0281] The embodiment of the present application further discloses a photovoltaic module, which includes the laminate 20 and the frame 10 described in the above embodiment, wherein the laminate 20 is connected to the frame 10 .

[0282] As shown in FIG. 28 to FIG. 33 , the photovoltaic module in the embodiment of the present application includes the laminate 20 and the frame 10 described in the above embodiment. The laminate 20 is connected to the frame 10 so as to support and protect the laminate 20 through the frame 10 .

[0283] For example, as shown in Figures 29 and 33, in the embodiment of the present application, the laminate 20 can be bonded to the frame 10 via an adhesive layer 70. However, the adhesive layer 70 can be seen from the light-receiving surface of the photovoltaic module through the gap between the battery string group 22 and the edge of the laminate 20, resulting in a less than aesthetically pleasing appearance of the photovoltaic module. Therefore, in the embodiment of the present application, in order to improve the appearance of the photovoltaic module, a shielding member 28 is connected to the area near the edge of the laminate 20. The shielding member 28 blocks the gap between the battery string group 22 and the edge of the laminate 20, thereby improving the aesthetic appearance of the photovoltaic module.

[0284] Optionally, as shown in FIG. 34 , along the extension direction of the frame 10 , the length of the shielding member 28 is greater than the length of the battery string group 22 and less than the length of the laminate 20 .

[0285] As shown in FIG34 , in the embodiment of the present application, the length of the shielding member 28 is set to be greater than the length of the battery string group 22 along the extension direction of the frame 10. Along the extension direction of the frame 10, the shielding member 28 can shield the entire area of ​​the battery string group 22 near the edge of the laminate 20, thereby improving the appearance consistency and aesthetics of the photovoltaic module.

[0286] Furthermore, along the extension direction of the frame 10 , the length of the shielding member 28 is set to be smaller than the length of the laminate 20 , so as to avoid the setting of the shielding member 28 affecting the reliability of the photovoltaic module.

[0287] Optionally, as shown in Figures 29 and 33, the frame 10 in the embodiment of the present application includes a bearing portion 12 and a blocking portion connected to the bearing portion 12, wherein the back side of the laminate 20 is connected to the bearing portion 12, and the side of the laminate 20 is connected to the blocking portion; along the thickness direction of the laminate 20, the height of the top of the blocking portion is not higher than the height of the light-receiving surface of the laminate 20.

[0288] As shown in Figures 29 and 33, the frame 10 in the embodiment of the present application includes a bearing portion 12 and a blocking portion connected to the bearing portion 12. For example, the blocking portion is vertically connected to the bearing portion 12. The back surface of the laminate 20 is connected to the bearing portion 12 to support the laminate 20 through the bearing portion 12. The side surface of the laminate 20 is connected to the blocking portion to limit the position of the laminate 20 through the blocking portion, and the blocking portion can seal the side surface of the laminate 20 to improve the reliability of the photovoltaic module.

[0289] It should be noted that the photovoltaic module in the embodiments of the present application is dust-proof. That is, along the thickness direction of the laminate 20, the height of the top of the blocking portion is no higher than the height of the light-receiving surface of the laminate 20. Rainwater and other liquids can wash away dust and impurities from the light-receiving surface of the laminate 20, allowing them to flow away from the light-receiving surface of the laminate 20, thereby preventing obstruction of the light-receiving surface of the laminate 20 and improving the photovoltaic module's photoelectric conversion efficiency.

[0290] Optionally, as shown in Figures 28 and 33, the frame 10 in the embodiment of the present application includes a first frame 80 and a second frame 81 connected to the first frame 80, wherein, along the thickness direction of the laminate 20, the height of the first frame 80 is not higher than the height of the light-receiving surface of the laminate 20; and / or, the height of the second frame 81 is not higher than the height of the light-receiving surface of the laminate 20.

[0291] As shown in Figures 28 to 34, the frame 10 in the embodiment of the present application includes a first frame 80 and a second frame 81 connected to the first frame 80. When the first frame 80 is the short frame of the photovoltaic module, the second frame 81 is the long frame of the photovoltaic module. When the first frame 80 is the long frame of the photovoltaic module, the second frame 81 is the short frame of the photovoltaic module.

[0292] The following description will be made by taking the example that the first frame 80 is a short frame and the second frame 81 is a long frame.

[0293] The photovoltaic module in the embodiment of the present application is a dust-proof photovoltaic module. That is, the height of at least one frame of the photovoltaic module is no higher than the height of the light-receiving surface of the laminate 20. The frame can be a short frame of the photovoltaic module or a long frame of the photovoltaic module. In other words, along the thickness direction of the laminate 20, the height of the first frame 80 is no higher than the height of the light-receiving surface of the laminate 20, and / or the height of the second frame 81 is no higher than the height of the light-receiving surface of the laminate 20. This allows dust and impurities to flow away from the light-receiving surface of the laminate 20, preventing the light-receiving surface of the laminate 20 from being blocked, thereby improving the photoelectric conversion efficiency of the photovoltaic module.

[0294] Optionally, as shown in Figure 30, the laminate 20 in the embodiment of the present application also includes a first bus bar 21, wherein the first bus bar 21 is spaced apart from the battery string group 22 along the extension direction of the second frame 81, and the first bus bar 21 is located between the first adhesive film 23 and the second adhesive film 24; along the direction perpendicular to the plane where the battery string group 22 is located, the shielding member 28 is located below the first bus bar 21.

[0295] As shown in Figure 30, when the short frame is an anti-dust frame, along the extension direction of the second frame 81, that is, along the extension direction of the long frame, the first bus bar 21 and the battery string group 22 are spaced apart, and the battery string group 22 is connected to the first bus bar 21 through a welding strip, so as to collect the current generated by the battery string group 22 through the first bus bar 21 and transmit the current to the external circuit.

[0296] As shown in Figure 30, the first bus bar 21 is located between the first adhesive film 23 and the second adhesive film 24, and the shielding member 28 is positioned below the first bus bar 21 in a direction perpendicular to the plane of the battery string 22. This prevents the shielding member 28 from affecting the reliability of the photovoltaic module.

[0297] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, i.e., they may be located in one location or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of the present embodiment. Persons of ordinary skill in the art will be able to understand and implement the present invention without inventive effort.

[0298] References herein to "one embodiment," "an embodiment," or "one or more embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Furthermore, please note that examples of the phrase "in one embodiment" herein do not necessarily all refer to the same embodiment. In the description provided herein, numerous specific details are described. However, it is understood that embodiments of the present application may be practiced without these specific details. In some instances, well-known methods, structures, and techniques are not shown in detail so as not to obscure the understanding of this description.

[0299] In the claims, any reference signs placed between brackets shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in the claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present application may be implemented by means of hardware comprising several different elements and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means may be embodied by one and the same item of hardware. The use of the words first, second, and third etc. does not indicate any order. These words may be interpreted as names.

[0300] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A photovoltaic module, comprising a laminate and a frame cooperating with the laminate, wherein, The frame includes a bearing part and a blocking part connected to the bearing part. The bearing part and the blocking part enclose a receiving groove. Along the thickness direction of the laminate, the height of the top of the blocking part is not higher than the height of the light-receiving surface of the laminate; A first protrusion is arranged in the receiving groove, and the first protrusion divides the receiving groove into a first receiving groove and a second receiving groove; Along the thickness direction of the laminate, there is a first distance L1 between the first protrusion and the top of the blocking part, and a second distance L2 between the first protrusion and the top of the bearing part, satisfying 0.2 ≤ L2:L1 ≤ 1.

2.

2. The photovoltaic module according to claim 1, wherein, The blocking part includes a blocking connection part vertically extending from the end of the bearing part and a connecting part horizontally extending from the blocking connection part; Along the thickness direction of the laminate, the height of the top of the connecting part is not higher than the height of the light-receiving surface of the laminate.

3. The photovoltaic module according to claim 1, wherein The laminate includes a front glass, a first encapsulant film, a battery string layer, a second encapsulant film, and a back glass stacked in sequence. The thickness of the back glass is greater than or equal to 1.5 mm and less than or equal to 3 mm, satisfying 0.8 ≤ L2:L1 ≤ 1.1; Alternatively, the laminate includes a front glass, a first encapsulant film, a battery string layer, a second encapsulant film, and a backsheet stacked in sequence. The thickness of the backsheet is greater than or equal to 0.3 mm and less than or equal to 1 mm, satisfying 0.2 ≤ L2:L1 ≤ 0.

5.

4. The photovoltaic module according to claim 2, wherein, When the laminate is bonded to the bearing part, there is a third distance L3 between the encapsulant film in the laminate and the end of the bearing part close to the connecting part, satisfying 0.5 ≤ L2:L3 ≤ 1.

5.

5. The photovoltaic module according to claim 4, wherein, When the laminate is a single-glass laminate, 0.6 ≤ L2:L3 ≤ 0.8 is satisfied; When the laminate is a double-glass laminate, 0.7 ≤ L2:L3 ≤ 0.9 is satisfied.

6. The photovoltaic module according to claim 2, wherein, At least one first busbar is arranged in the laminate. The first busbar is arranged on one side of the laminate, and the frame is arranged at a position parallel to the first busbar of the laminate, or the frame is arranged at a position perpendicular to the first busbar of the laminate; There is a fourth distance L4 between the first busbar and the first protrusion, satisfying 15 mm ≤ L4 ≤ 15.4 mm.

7. The photovoltaic module according to claim 2, wherein, Along the thickness direction of the laminate, the difference between the height of the blocking connection part and the height of the laminate is L6, satisfying 0.5 mm ≤ L6 ≤ 1.5 mm.

8. The photovoltaic module according to claim 7, wherein When the laminate is a single-glass laminate, 0.8 mm ≤ L6 ≤ 1.2 mm is satisfied; When the laminate is a double-glass laminate, 0.5 mm ≤ L6 ≤ 0.9 mm is satisfied.

9. The photovoltaic module according to claim 2, wherein, Along the first direction, the width of the connecting part is L7, satisfying 3.5 mm ≤ L7 ≤ 5 mm; And / or, along the first direction, the width of the blocking connection part is L8, satisfying 1.1 mm ≤ L8 ≤ 1.5 mm; And / or, along the first direction, the width of the carrying part is L 13 , satisfying 6mm ≤ L 13 ≤ 12mm; The first direction is perpendicular to the thickness direction of the laminate and the extending direction of the frame.

10. The photovoltaic module according to claim 2, wherein, A second protrusion is provided on the bearing portion, and the second protrusion protrudes in a direction close to the connecting portion. The height of the second protrusion is L 10 , satisfying 0.2 mm ≤ L 10 ≤ 1 mm; And / or, in the thickness direction of the laminate, the height difference between the end of the second protrusion close to the connection part and the end of the connection part close to the bearing part is L 11 , satisfying 1.7 mm ≤ L 11 ≤ 2.7 mm; And / or, along the first direction, the distance between the second protrusion and the first protrusion is L 12 , satisfying 0.5mm ≤ L 12 ≤ 1.5mm; The first direction is perpendicular to the thickness direction of the laminate and the extending direction of the frame.

11. A photovoltaic module, comprising a laminate and a frame cooperating with the laminate, wherein, The frame includes: A bearing part, one end of the bearing part is provided with a third protrusion; [[ID= ​ ​ 12. The photovoltaic module according to claim 11, wherein, ​ 13. The photovoltaic module according to claim 11, wherein, ​ 14. The photovoltaic module according to claim 13, wherein, ​ ​ 15. The photovoltaic module according to claim 13, wherein, ​ ​ ​ 16. The photovoltaic module according to claim 15, wherein, ​ 17. The photovoltaic module according to any one of claims 11-16, wherein, ​ 18. The photovoltaic module according to claim 17, wherein, ​ 19. The photovoltaic module according to any one of claims 11-16, wherein, ​ 20. The photovoltaic module according to claim 19, wherein, ​ ​ ​ 21. The photovoltaic module according to any one of claims 11-16, wherein, ​ ​ 22. The photovoltaic module according to any one of claims 11-16, wherein, In the width direction of the blocking portion, the width of the connecting portion is greater than the width of the first protrusion, and the width of the first protrusion does not exceed 0.7 times the width of the connecting portion; Alternatively, the difference between the width of the first protrusion and the width of the connecting portion is greater than 0.8 mm.

23. The photovoltaic module according to any one of claims 11-16, wherein, One side of the blocking portion facing away from the receiving groove has an arc segment, the starting end of the arc segment is located in the middle area of the blocking portion, the terminating end of the arc segment is connected to the root of the connecting portion, and the concave side of the arc segment faces the receiving groove; The radian of the arc segment is greater than or equal to 0° and less than or equal to 90°.

24. A photovoltaic module, wherein, It includes a frame and a laminate bonded to the frame. The frame includes a blocking portion, a bearing portion, and a connecting portion. The blocking portion extends vertically from the end of the bearing portion, and the connecting portion extends horizontally from the end of the blocking portion; The bottom wall of the laminate is located on the bearing portion, and the side wall of the laminate abuts against the end of the connecting portion facing away from the blocking portion; The side wall of the laminate, the blocking portion, the connecting portion, and the bearing portion together define a receiving groove. Along the direction from the top wall to the bottom wall of the laminate, the receiving groove includes a first receiving groove and a second receiving groove arranged in sequence. The first receiving groove and the second receiving groove are communicated through a glue flow channel. The area of the positive projection of the first receiving groove on a plane perpendicular to the blocking portion is greater than the area of the positive projection of the second receiving groove on a plane perpendicular to the blocking portion. A first protrusion is provided on the side of the blocking portion close to the laminate, and a glue flow channel is formed by a gap between the first protrusion and the side wall of the laminate.

25. The photovoltaic module according to claim 24, wherein, Along the direction perpendicular to the side wall of the laminate, the width of the glue flow channel is greater than or equal to 0.7 mm and less than or equal to 2 mm.

26. The photovoltaic module according to claim 24, wherein, The ratio of the area of the positive projection of the first receiving groove on a plane perpendicular to the blocking portion to the area of the positive projection of the second receiving groove on a plane perpendicular to the blocking portion is greater than or equal to 1.05 and less than or equal to 3.

5.

27. The photovoltaic module according to claim 26, wherein, The orthographic projection area of the first receiving groove on a plane perpendicular to the blocking portion is greater than or equal to 2.32 mm 2 and less than or equal to 8.4 mm 2 ; And / or, the orthographic projection area of the second receiving groove on a plane perpendicular to the blocking portion is greater than or equal to 1.856 mm 2 and less than or equal to 5.33 mm 2 ; And / or, the difference between the orthographic projection area of the first receiving groove on a plane perpendicular to the blocking portion and the orthographic projection area of the second receiving groove on a plane perpendicular to the blocking portion is greater than or equal to 0.4 mm 2 .

28. The photovoltaic module according to claim 24, wherein, Along the thickness direction of the laminate, the maximum height of the receiving groove is greater than or equal to 3.09 mm and less than or equal to 5.61 mm; And / or, along the direction perpendicular to the side wall of the laminate, the maximum width of the receiving groove is greater than or equal to 0.3 mm and less than or equal to 5.74 mm.

29. A photovoltaic system, wherein, It includes a photovoltaic module as described in any one of claims 1 to 29.

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