Photovoltaic module frame and photovoltaic module

Abstract

An embodiment of the present application provides a photovoltaic module frame and a photovoltaic module. The photovoltaic module frame includes a frame body made of a polyurethane resin matrix and glass fibers by a pultrusion process, and a metal layer. The frame body includes a top bearing portion, a first limiting portion, a second limiting portion, a first side portion, a second side portion, and a bottom bearing portion. The first limiting portion faces the top bearing portion, and the top bearing portion, the second limiting portion, and the first limiting portion are sequentially joined to enclose a receiving groove. The top bearing portion, the first side portion, the bottom bearing portion, and the second side portion are sequentially joined to enclose a cavity. The top bearing portion is located between the cavity and the receiving groove, and the second side portion is joined to the second limiting portion. The metal layer is at least attached to the surface of the frame body except for the receiving groove and the cavity. The embodiment of the present application can at least improve the strength of the photovoltaic module frame.

Description

Technical Field

[0001] Embodiments of the present application relate to the technical field of photovoltaic modules, and in particular to a photovoltaic module frame and a photovoltaic module. Background Art

[0002] As a component of a photovoltaic module, the photovoltaic module frame can fix and seal the photovoltaic laminate, enhance the strength of the photovoltaic module, extend the service life of the photovoltaic module, and facilitate the transportation and installation of the photovoltaic module. Among them, the photovoltaic module frame usually consists of a receiving groove and a cavity. The receiving groove is used to snap and hold the laminate, and the cavity is used to fix the photovoltaic module frame.

[0003] However, there is currently a problem of poor strength of the photovoltaic module frame. Summary of the Invention

[0004] Embodiments of the present application provide a photovoltaic module frame and a photovoltaic module, which are at least beneficial to solving the problem of poor strength of the photovoltaic module frame.

[0005] According to some embodiments of the present application, on the one hand, an embodiment of the present application provides a photovoltaic module frame, including: a frame body, the frame body is made of a polyurethane resin matrix and glass fiber by a pultrusion process; wherein, the frame body includes a top bearing portion, a first limiting portion, a second limiting portion, a first side portion, a second side portion, and a bottom bearing portion. The first limiting portion faces the top bearing portion, and the top bearing portion, the second limiting portion, and the first limiting portion are sequentially joined to form a receiving groove. The top bearing portion, the first side portion, the bottom bearing portion, and the second side portion are sequentially joined to form a cavity. The top bearing portion is located between the cavity and the receiving groove, and the second side portion is connected to the second limiting portion; a metal layer, the metal layer is at least coated on the surface of the frame body except for the receiving groove and the cavity.

[0006] In some embodiments, the metal layer is also coated on at least a part of the surface of the receiving groove.

[0007] In some embodiments, the metal layer is a single piece of metal.

[0008] In some embodiments, the metal layer includes multiple pieces of metal, and each piece of metal is sequentially coated on at least a part of the surface of the frame body around the surface of the frame body.

[0009] In some embodiments, a first piece of metal, the first piece of metal is at least coated on the surface of the second limiting portion and the surface of the second side portion; a second piece of metal, the second piece of metal is at least coated on the surface of the first side portion and the surface of the bottom bearing portion; wherein, the thickness of the first piece of metal is greater than the thickness of the second piece of metal.

[0010] In some embodiments, the metal layer attached to the second limiting portion and the second side portion has a first thickness; the metal layer attached to the first limiting portion, the bottom bearing portion, and the first side portion has a second thickness; the second thickness is less than the first thickness.

[0011] In some embodiments, the first thickness is 0.02 mm to 0.2 mm, and the second thickness is 0.01 mm to 0.1 mm.

[0012] In some embodiments, the thickness of the metal layer is 0.01 mm to 0.1 mm.

[0013] In some embodiments, the material of the metal layer is aluminum, copper, stainless steel, or nickel-plated iron.

[0014] According to some embodiments of the present application, on the other hand, the present application embodiments further provide a photovoltaic module, including: a laminate, the laminate includes a cell layer, an encapsulant film, and a cover plate, wherein the encapsulant film covers the surface of the cell layer, and the cover plate covers the surface of the encapsulant film facing away from the cell layer; the photovoltaic module frame as described in any one of the above embodiments, and an edge portion of the laminate is located in the receiving groove.

[0015] The technical solutions provided by the embodiments of the present application have at least the following advantages:

[0016] The photovoltaic module frame provided by the embodiments of the present application is made of a polyurethane resin matrix and glass fiber through a pultrusion process to form a frame body, and a metal layer is also attached to at least a part of the surface of the frame body. Among them, the metal layer is attached to at least the surface of the frame body except for the receiving groove and the cavity. In this way, on the one hand, the metal layer can enhance the overall strength of the photovoltaic module, and on the other hand, the metal layer can also play a role in protecting the frame body, protecting the frame body from being eroded by light, wind, rain, etc., improving the weather resistance of the photovoltaic module frame, and being beneficial to extending the service life of the photovoltaic module frame. Description of the Drawings

[0017] One or more embodiments are exemplarily illustrated by the pictures in the corresponding drawings. These exemplary illustrations do not constitute limitations on the embodiments. Unless otherwise stated, the figures in the drawings do not constitute a scale limitation; in order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 Schematic structural diagram of a photovoltaic module frame provided by an embodiment of the present application;

[0019] Figure 2 Schematic structural diagram of a photovoltaic module frame provided by an embodiment of the present application;

[0020] Figure 3 Schematic structural diagram of a photovoltaic module frame provided by an embodiment of the present application;

[0021] Figure 4 Schematic structural diagram of a photovoltaic module frame provided by an embodiment of the present application;

[0022] Figure 5 Schematic structural diagram of a photovoltaic module frame provided by an embodiment of the present application;

[0023] Figure 6 Schematic structural diagram of a photovoltaic module frame provided by an embodiment of the present application;

[0024] Figure 7 Schematic partial structural diagram of a photovoltaic module provided by another embodiment of the present application;

[0025] Figure 8 Schematic structural diagram of a laminate provided by another embodiment of the present application. Detailed implementation manners

[0026] As can be seen from the background art, the strength of the current photovoltaic module frame still needs to be improved.

[0027] An embodiment of the present application provides a photovoltaic module frame, which is made of a polyurethane resin matrix and glass fiber through a pultrusion process. A metal layer is also attached to at least part of the surface of the frame body, wherein the metal layer is attached to at least the surface of the frame body except for the accommodation groove and the cavity. In this way, by attaching a metal layer to part of the surface of the frame body, the overall strength of the photovoltaic module can be enhanced. In addition, the metal layer can also play a protective role for the frame body, protecting the frame body from being eroded by light, wind and rain, etc., improving the weather resistance of the photovoltaic module frame, and being beneficial to extending the service life of the photovoltaic module frame.

[0028] The following will elaborate on the embodiments of the present application in conjunction with the accompanying drawings. However, those of ordinary skill in the art can understand that in the embodiments of the present application, many technical details are proposed for the reader to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical solutions claimed in the present application can still be implemented.

[0029] Figure 1 Schematic structural diagram of a photovoltaic module frame provided by an embodiment of the present application,Figure 2 The structural schematic diagram of a photovoltaic module frame provided by an embodiment of the present application, Figure 3 The structural schematic diagram of a photovoltaic module frame provided by an embodiment of the present application, Figure 4 The structural schematic diagram of a photovoltaic module frame provided by an embodiment of the present application, Figure 5 The structural schematic diagram of a photovoltaic module frame provided by an embodiment of the present application, Figure 6 The structural schematic diagram of a photovoltaic module frame provided by an embodiment of the present application.

[0030] Refer to Figures 1 to 6 , the photovoltaic module frame 101 may include: a frame body, which is made of a polyurethane resin matrix and glass fiber by a pultrusion process; wherein, the frame body includes a top bearing part 102, a first limiting part 103, a second limiting part 104, a first side part 105, a second side part 106, and a bottom bearing part 107. Among them, the first limiting part 103 faces the top bearing part 102, and the top bearing part 102, the second limiting part 104, and the first limiting part 103 are sequentially joined to enclose a receiving groove 108. The top bearing part 102, the first side part 105, the bottom bearing part 107, and the second side part 106 are sequentially joined to enclose a cavity 109. The top bearing part 102 is located between the cavity 109 and the receiving groove 108, and the second side part 106 is joined to the second limiting part 104; a metal layer 110, and the metal layer 110 can be at least adhered to the surface of the frame body except for the receiving groove 108 and the cavity 109.

[0031] In this way, compared with the frame body made of metal materials such as aluminum alloy, by using a polyurethane resin matrix and glass fiber to make the frame body, the cost of preparing the photovoltaic module frame 101 can be reduced, and using a polyurethane resin matrix and glass fiber to make the frame body has better corrosion resistance. And by adhering a metal layer 110 on the surface of the frame body, the overall strength of the photovoltaic module frame 101 can be enhanced, and the metal layer 110 can also play a role in protecting the frame body from being eroded by light, wind, rain, etc., improving the weather resistance of the photovoltaic module frame 101, which is beneficial to extending the service life of the photovoltaic module frame 101.

[0032] In some embodiments, the frame body may include 70% - 80% by mass of glass fiber. For example, the mass fraction of glass fiber may be 70.6%, 75.9% or 79.7%, and 20% - 30% by mass of polyurethane resin matrix. For example, the mass fraction of polyurethane resin matrix may be 20.2%, 25.61% or 29.92%.

[0033] The receiving groove 108 of the frame body can carry a photovoltaic module. In some embodiments, at least one recessed portion 114 can be provided on the surface of the first limiting portion 103 facing the receiving groove 108, so that the surface of the first limiting portion 103 facing the receiving groove 108 has a concave-convex structure. In this way, when the laminate of the photovoltaic module is engaged in the receiving groove 108, a cavity can be formed between the concave-convex structure of the first limiting portion 103 facing the top bearing portion 102 and the surface of the laminate. The cavity can be used as a glue storage groove for storing excess sealant, which can not only improve the glue overflow phenomenon, but also increase the sealant reserve to improve the bonding strength. On the other hand, the surface of the first limiting portion 103 facing the glue storage groove 108 is a concave-convex structure, which can play an anti-slip effect and further improve the bonding strength of the receiving groove 108 to the photovoltaic module.

[0034] In some embodiments, the photovoltaic component frame 101 may further include an angle code (not shown), and the cavity 109 of the frame body may be used to accommodate the angle code to form a continuous photovoltaic component assembly structure, wherein the frame body may further include at least one raised portion 115, and the raised portion 115 may be located on the surface of the top bearing portion 102 or the bottom bearing portion 107 facing the cavity 109. By providing the raised portion 115, it can be ensured that the angle code in the cavity 109 is not easily misaligned with the frame body.

[0035] In some embodiments, the metal layer 110 may be made of aluminum, copper, stainless steel, or nickel-plated iron.

[0036] In some embodiments, the metal layer 110 can be attached to the surface of the frame body except the receiving groove 108 and the cavity 109, that is, the metal layer 110 can be attached to the surface of the first limiting portion 103 outside the receiving groove 108, the surface of the second limiting portion 104 outside the receiving groove 108, the surface of the second side portion 106 away from the cavity 109, the surface of the bottom bearing portion 107 away from the cavity 109, and the surface of the first side portion 105 away from the cavity 109

[0037] In some embodiments, the metal layer 110 may be attached to the surface of the frame body except the receiving groove 108 and the cavity 109, and the metal layer 110 may also be attached to at least part of the surface of the receiving groove 108. For example, in addition to being attached to the surface of the first limiting portion 103 outside the receiving groove 108, the surface of the second limiting portion 104 outside the receiving groove 108, the surface of the second side portion 106 away from the cavity 109, the surface of the bottom bearing portion 107 away from the cavity 109, and the surface of the first side portion 105 away from the cavity 109, the metal layer 110 may also be attached to the surface of the first limiting portion 103 in the receiving groove 108, the surface of the second limiting portion 104 in the receiving groove 108, or the surface of the top bearing portion 102 in the receiving groove 108.

[0038] Reference Figure 1 and Figure 2 , in some embodiments, the metal layer 110 may be a single piece of metal. For example, a single piece of metal may continuously cover the surface of the first limiting portion 103 outside the receiving groove 108, the surface of the second limiting portion 104 outside the receiving groove 108, the surface of the second side portion 106 facing away from the cavity 109, the surface of the bottom bearing portion 107 facing away from the cavity 109, and the surface of the first side portion 105 facing away from the cavity 109 in sequence.

[0039] In some embodiments, the metal layer 110 may be a single piece of metal, and the metal layer 110 may be attached to the surface of the frame body except for the cavity 109. For example, a single piece of metal may continuously cover the surface of the second limiting portion 104 inside the receiving groove 108, the surface of the first limiting portion 103 in the receiving groove 108, the surface of the first limiting portion 103 outside the receiving groove 108, the surface of the second limiting portion 104 outside the receiving groove 108, the surface of the second side portion 106 facing away from the cavity 109, the surface of the bottom bearing portion 107 facing away from the cavity 109, the surface of the first side portion 105 facing away from the cavity 109, and the surface of the top bearing portion 102 in the receiving groove 108 in sequence.

[0040] Wherein, the metal layer 110 may have a sealing edge opening 111 with the head and tail facing each other, and the sealing edge opening 111 is located inside the receiving groove 108. Thus, during the process of the receiving groove 108 of the photovoltaic module frame 101 provided in this embodiment bearing the laminate of the photovoltaic module, a sealant may be filled between the receiving groove 108 and the laminate, and the sealant may also seal the sealing edge opening 111 of the metal layer 110, preventing the metal layer 110 from falling off the frame body, which is beneficial to enhancing the reliability of the photovoltaic module frame 101.

[0041] In some embodiments, the metal layer 110 can be a single piece of metal, and the metal layer 110 can be attached to the surface of the frame body except for the cavity 109. Among them, the metal layer 110 can have a sealing edge opening 111 with the head and tail facing each other, and the sealing edge opening 111 is located in the receiving groove 108 near the second limiting portion 104. For example, the sealing edge opening 111 can be located on the first limiting portion 103 in the receiving groove 108 near the second limiting portion 104. For example, the sealing edge opening 111 can be located on the second limiting portion 104 in the receiving groove 108. Or, for example, the sealing edge opening 111 can be located on the top bearing portion 102 in the receiving groove 108 near the second limiting portion 104. Thus, when the receiving groove 108 of the photovoltaic module frame 101 provided in this embodiment is used to carry the laminate of the photovoltaic module, a sealant can be filled between the receiving groove 108 and the laminate, and the sealant can also seal the sealing edge opening of the metal layer 110 to prevent the metal layer 110 from falling off the frame body. Moreover, compared with the case where the sealing edge opening 111 is located in the receiving groove 108 far from the second limiting portion 104, when the sealing edge opening 111 is located in the receiving groove 108 near the second limiting portion 104, the possibility of the metal layer 110 falling off the frame body can be further reduced, which is beneficial to enhancing the reliability of the photovoltaic module frame 101.

[0042] It can be understood that the thickness of the metal layer 110 is relatively thin, which is not conducive to improving the strength of the photovoltaic module frame 101 with the metal layer 110 attached. If the thickness of the metal layer 110 is relatively thick, it may affect the effect of the receiving groove 108 of the photovoltaic module frame 101 in carrying the laminate.

[0043] In some embodiments, the metal layer 110 can be a single piece of metal. Among them, the thickness of the metal layer 110 attached to different parts of the frame body can be the same. In some embodiments, the thickness of the metal layer 110 can be 0.01 mm to 0.1 mm. For example, the thickness can be 0.011 mm, 0.056 mm, or 0.097 mm. Within this thickness range, the photovoltaic module frame 101 with the metal layer 110 attached has relatively high strength, and the thickness of the metal layer 110 has little influence on the effect of the receiving groove 108 of the photovoltaic module frame 101 in carrying the laminate.

[0044] It can be understood that the strength of the second limiting portion 104 of the frame body and the strength of the second side portion 106 are less than the strength of the rest of the frame body. Refer to Figure 2, in some embodiments, the metal layer 110 can be a single piece of metal, and the metal layer 110 attached to different positions of the frame body has different thicknesses. Among them, the metal layer 110 attached to the second limiting portion 104 and the second side portion 106 can have a first thickness, and the metal layer 110 attached to the first limiting portion 103, the bottom bearing portion 107, and the first side portion 105 can have a second thickness. Among them, the second thickness can be less than the first thickness. In this way, the strength difference of each part of the photovoltaic module frame 101 can be made smaller.

[0045] In some embodiments, the first thickness can be 0.02 mm to 0.2 mm. For example, the first thickness can be 0.023 mm, 0.014 mm, or 0.019 mm, and the second thickness can be 0.01 mm to 0.1 mm. For example, the thickness can be 0.011 mm, 0.056 mm, or 0.098 mm.

[0046] Reference Figures 3 to 5 , in some embodiments, the metal layer 110 can include multiple pieces of metal, and each piece of metal is sequentially attached to at least part of the surface of the frame body around the surface of the frame body. In this way, compared with attaching a single piece of metal to the frame body, using multiple pieces of metal to attach to the frame body in this embodiment can make the multiple pieces of metal more flatly attached to the surface of the frame body. For example, each piece of metal can be sequentially attached to the surface of the frame body except for the receiving groove 108 and the cavity 109 around the surface of the frame body. For another example, each piece of metal can be sequentially attached to the surface of the frame body except for the cavity 109 around the surface of the frame body.

[0047] In some embodiments, the metal layer 110 can include multiple pieces of metal, and the thickness of each piece of metal can be different.

[0048] Reference Figure 3 And Figure 4 , in some embodiments, the metal layer 110 can include a first piece of metal 112 and a second piece of metal 113. The first piece of metal 112 is at least attached to the surface of the second limiting portion 104 and the surface of the second side portion 106, and the second piece of metal 113 is at least attached to the surface of the first side portion 105 and the surface of the bottom bearing portion 107. Among them, the thickness of the first piece of metal 112 can be greater than the thickness of the second piece of metal 113. In this way, the strength difference between the second limiting portion 104 of the frame body 110 to which the metal layer 110 is attached, the strength of the second side portion 106, and the strength of the remaining parts of the frame body 110 can be reduced.

[0049] In some embodiments, the thickness of the first metal sheet 112 may be from 0.02 mm to 0.2 mm. For example, the thickness may be 0.023 mm, 0.014 mm or 0.019 mm. The thickness of the second metal sheet 113 may be from 0.01 mm to 0.1 mm. For example, the thickness may be 0.011 mm, 0.056 mm or 0.097 mm.

[0050] Reference Figure 3 , in some embodiments, the first metal sheet 112 may be attached to the surface of the second limiting portion 104, a partial surface of the first limiting portion 103 close to the second limiting portion 104, the surface of the second side portion 106, and a partial surface of the bottom bearing portion 107 close to the second side portion 106. The second metal sheet 113 may be attached to the surface of the first side portion 105 facing away from the cavity 109, at least a partial surface of the top bearing portion 102 close to the first side portion 105 and facing away from the cavity 109, the surface of the bottom bearing portion 107 facing away from the cavity 109, and the surface of the second side portion 106 close to the bottom bearing portion 107 and facing away from the cavity 109. Thus, one end of the second metal sheet 113 is located in the receiving groove 108. When the receiving groove 108 of the photovoltaic module frame 101 provided in this embodiment is used to carry the laminate of the photovoltaic module, a sealant may be filled between the receiving groove 108 and the laminate. Therefore, the laminate and the frame body can press the portion of the second metal sheet 113 located in the receiving groove 108, reducing the possibility of the second metal sheet 113 falling off from the frame body, which is beneficial to enhancing the reliability of the photovoltaic module frame 101.

[0051] Reference Figure 4, in some embodiments, the first piece of metal 112 may cover a partial surface of the second limiting portion 104, the surface of the first limiting portion 103, the surface of the second side portion 106, and a partial surface of the bottom bearing portion 107 close to the second side portion 106. The second piece of metal 113 may cover a partial surface of the second limiting portion 104 located in the receiving groove 108, the surface of the top bearing portion 102 located in the receiving groove, the surface of the first side portion 105 facing away from the cavity 109, and a partial surface of the bottom bearing portion 107 facing away from the cavity 109. Among them, the surface of the second limiting portion 104 covered by the first piece of metal 112 may include at least a partial surface of the second limiting portion 104 located in the receiving groove 108. In this way, one end of the first piece of metal 112 and one end of the second piece of metal 113 are both located in the receiving groove 108. During the process of using the receiving groove 108 of the photovoltaic module frame 101 provided in this embodiment to bear the laminate of the photovoltaic module, a sealant may be filled between the receiving groove 108 and the laminate. Thus, the laminate and the frame body can press the parts of the first piece of metal 112 and the second piece of metal 113 located in the receiving groove 108, reducing the possibility of the first piece of metal 112 and the second piece of metal 113 falling off from the frame body, which is beneficial to enhancing the reliability of the photovoltaic module frame 101.

[0052] In some embodiments, the metal layer 110 may include multiple pieces of metal. Each piece of metal is sequentially attached to at least a partial surface of the frame body around the surface of the frame body, and the thickness of each piece of metal may be the same. Among them, the thickness of each piece of metal in the metal layer 110 may be 0.01 mm to 0.1 mm. For example, the thickness may be 0.011 mm, 0.056 mm, or 0.097 mm. For example, the metal layer 110 may include the first piece of metal 112 and the second piece of metal 113. The thickness of the first piece of metal 112 may be the same as the thickness of the second piece of metal 113. Among them, the thickness of the first piece of metal 112 may be 0.01 mm to 0.1 mm, and the thickness of the second piece of metal 113 may be 0.01 mm to 0.1 mm. For example, the thickness of the first piece of metal 112 may be 0.011 mm, and the thickness of the second piece of metal 113 may be 0.011 mm; for example, the thickness of the first piece of metal 112 may be 0.056 mm, and the thickness of the second piece of metal 113 may be 0.056 mm; and for another example, the thickness of the first piece of metal 112 may be 0.097 mm, and the thickness of the second piece of metal 113 may be 0.097 mm.

[0053] It can also be understood that the metal layer 110 may include multiple pieces of metal with the number of pieces greater than 2, and each piece of metal is sequentially attached to at least a part of the surface of the frame body around the surface of the frame body. For example, the metal layer 110 may include three pieces of metal, and each piece of metal is sequentially attached to at least a part of the surface of the frame body around the surface of the frame body. For example, the metal layer 110 may include four pieces of metal, and each piece of metal is sequentially attached to at least a part of the surface of the frame body around the surface of the frame body. For another example, the metal layer 110 may include six pieces of metal, and each piece of metal is sequentially attached to at least a part of the surface of the frame body around the surface of the frame body.

[0054] Reference Figure 5 , in some embodiments, the metal layer 110 may include a first piece of metal 112, a second piece of metal 113, and a third piece of metal 120. The first piece of metal 112 may be attached to a part of the surface of the first limiting portion 103 close to the second limiting portion 104 and outside the receiving groove 108, the surface of the second limiting portion 104 outside the receiving groove 108, the surface of the second side portion 106 outside the cavity 109, and a part of the surface of the bottom bearing portion 107 close to the second side portion 106 and outside the cavity 109. The second piece of metal 113 may be attached to a part of the surface of the bottom bearing portion 107 close to the first side portion 105 and outside the cavity 109, the surface of the first side portion 105 outside the cavity 109, the surface of the top bearing portion 102 inside the receiving groove 108, and a part of the surface of the second limiting portion 104 inside the receiving groove 108 and close to the top bearing portion 102. The third piece of metal 120 may be attached to a part of the surface of the first limiting portion 103 outside the receiving groove 108, the surface of the first limiting portion 103 inside the receiving groove 108, and a part of the surface of the second limiting portion 104 inside the receiving groove 108 and close to the first limiting portion 103. Thus, compared with the metal layer 110 being a single piece of metal, the first piece of metal 112, the second piece of metal 113, and the third piece of metal 120 are respectively attached to different parts of the frame body, which is more convenient for bending the first piece of metal 112, the second piece of metal 113, and the third piece of metal 120, so that the first piece of metal 112, the second piece of metal 113, and the third piece of metal 120 can be more smoothly attached to the frame body, which is beneficial to improving the reliability and aesthetics of the photovoltaic module frame 101.

[0055] Among them, the thickness of the first piece of metal 112 may be greater than the thickness of the second piece of metal 113, and may also be greater than the thickness of the third piece of metal 120. Thus, the strength difference between the second limiting portion 104 of the frame body 110 with the metal layer 110 attached thereto, the strength of the second side portion 106, and the strength of the remaining parts of the frame body 110 can be reduced.

[0056] In some embodiments, the thickness of the first metal sheet 112 may also be equal to the thickness of the second metal sheet 113 and may also be equal to the thickness of the third metal sheet 120.

[0057] In some embodiments, the metal layer 110 may include multiple metal sheets. Among them, one metal sheet covers a part of the surface of the frame body except for the cavity 109, and the remaining metal sheets may be sequentially attached to the part of the surface of the one metal sheet facing away from the frame body.

[0058] Reference Figure 6 , in some embodiments, the metal layer 110 may include a first metal sheet 112 and a second metal sheet 113. The first metal sheet 112 may be attached to the surface of the frame body except for the cavity 109. The second metal sheet 113 may be attached to the surface of the second limiting portion 104 facing away from the receiving groove 108 and the surface of the second side portion 106 facing away from the cavity 109. Among them, the first metal sheet 112 may have sealing edges 111 with their heads and tails facing each other, and the sealing edges 111 are located at a position in the receiving groove 108 close to the second limiting portion 104. Thus, during the process of using the receiving groove 108 of the photovoltaic module frame 101 provided in this embodiment to carry the laminate of the photovoltaic module, a sealant may be filled between the receiving groove 108 and the laminate, and the sealant may also seal the sealing edges 111 of the first metal sheet 112 to prevent the first metal sheet 112 from falling off the frame body. Moreover, by providing the second metal sheet 113 and the first metal sheet 112, the overall strength and weather resistance of the photovoltaic module frame 101 can be improved. In addition, the setting of the second metal sheet 113 can also reduce the strength difference between the second limiting portion 104 and the second side portion 106 where the second metal sheet 113 and the first metal sheet 112 are attached and the remaining part of the frame body where the first metal sheet 112 is attached.

[0059] In some embodiments, the metal layer 110 may include a first metal sheet 112 and a second metal sheet 113. The first metal sheet 112 may be attached to the surface of the frame body except for the cavity 109. The second metal sheet 113 may be attached to the surface of the second limiting portion 104 facing away from the receiving groove 108 and the surface of the second side portion 106 facing away from the cavity 109. Among them, the thickness of the first metal sheet 112 may be equal to the thickness of the second metal sheet 113. The thickness of the first metal sheet 112 may be 0.01 mm to 0.1 mm, and the thickness of the second metal sheet 113 may be 0.01 mm to 0.1 mm. For example, the thickness of the first metal sheet 112 may be 0.011 mm, and correspondingly, the thickness of the second metal sheet 113 may be 0.011 mm; for example, the thickness of the first metal sheet 112 may be 0.056 mm, and the thickness of the second metal sheet 113 may be 0.056 mm; for another example, the thickness of the first metal sheet 112 may be 0.097 mm, and the thickness of the second metal sheet 113 may be 0.097 mm.

[0060] In some embodiments, the metal layer 110 may include a first piece of metal 112 and a second piece of metal 113. The first piece of metal 112 may be attached to the surface of the frame body except for the cavity 109, and the second piece of metal 113 may be attached to the surface of the second limiting portion 104 facing away from the receiving groove 108 and the surface of the second side portion 106 facing away from the cavity 109. Among them, the thickness of the first piece of metal 112 may also be different from the thickness of the second piece of metal 113.

[0061] In some embodiments, an adhesive may also be coated between the metal layer 110 and the frame body. By coating the adhesive, the adhesion between the metal layer 110 and the frame body can be enhanced, and the metal layer 110 can be prevented from falling off the frame body. Among them, the material of the adhesive may be polyurethane resin, silicone, etc.

[0062] It can be understood that since the frame body is made of a polyurethane resin matrix and glass fiber by a pultrusion process, and the polyurethane resin matrix has adhesiveness, after being made of a polyurethane resin matrix and glass fiber by a pultrusion process, the metal layer 110 may not be attached to the frame body through an adhesive, and the metal layer 110 can be directly attached to the frame body by using the adhesiveness of the polyurethane resin matrix.

[0063] The photovoltaic module frame 101 provided in the above embodiments is made of a polyurethane resin matrix and glass fiber to form the frame body. Compared with the frame body made of metal materials such as aluminum alloy, the frame body 110 provided in the above embodiments can reduce the cost of manufacturing the photovoltaic module frame 101, and the frame body made of a polyurethane resin matrix and glass fiber has better corrosion resistance. In addition, a metal layer 110 is attached to the surface of the frame body. The metal layer 110 may be attached to the surface of the frame body 110 except for the receiving groove 108 and the cavity 109, and the metal layer 110 may also be attached to the surface of the frame body 110 located in the receiving groove 108. By providing the metal layer 110 on the surface of the frame body, the overall strength of the photovoltaic module frame 101 can be enhanced, which is beneficial to improving the reliability of the photovoltaic module frame 101, and the metal layer 110 can also play a role in protecting the frame body, protecting the frame body from erosion by light, wind, rain, etc., improving the weather resistance of the photovoltaic module frame 101, and being beneficial to extending the service life of the photovoltaic module frame 101.

[0064] Correspondingly, the embodiment of the present application also provides a photovoltaic module, and the photovoltaic module includes the photovoltaic module frame provided in any one of the above embodiments. The following will describe in detail the photovoltaic module provided in another embodiment of the present application with reference to the accompanying drawings. For the same or corresponding parts as those in the previous embodiment, reference may be made to the corresponding description of the previous embodiment, and the following will not be described in detail. Figure 7A partial structural schematic diagram of a photovoltaic module provided by another embodiment of the present application. Figure 8 A structural schematic diagram of a laminate provided by another embodiment of the present application.

[0065] Referring to Figure 7 and Figure 8 , the photovoltaic module may include: a laminate 116, the laminate 116 may include a cell layer 117, an encapsulant film 118, and a cover plate 119. Among them, the encapsulant film 118 covers the surface of the cell layer 117, and the cover plate 119 covers the surface of the encapsulant film 118 facing away from the cell layer 117; a photovoltaic module frame 101, and an edge portion of the laminate 116 is located in the receiving groove 108. The photovoltaic module frame 101 provided in the foregoing embodiment has a metal layer 110 attached to a partial surface of the frame body. Thus, the photovoltaic module frame 101 has relatively high strength and good weather resistance. Further, using the photovoltaic module frame 101 provided in the foregoing embodiment to carry the laminate 116 is conducive to improving the reliability and lifespan of the photovoltaic module.

[0066] Referring to Figure 2 , the photovoltaic module frame 101 may include a frame body, and the frame body is made of a polyurethane resin matrix and glass fibers through a pultrusion process; among them, the frame body includes a top bearing portion 102, a first limiting portion 103, a second limiting portion 104, a first side portion 105, a second side portion 106, and a bottom bearing portion 107. Among them, the first limiting portion 103 faces the top bearing portion 102, and the top bearing portion 102, the second limiting portion 104, and the first limiting portion 103 are sequentially joined to enclose the receiving groove 108. The top bearing portion 102, the first side portion 105, the bottom bearing portion 107, and the second side portion 106 are sequentially joined to enclose a cavity 109. The top bearing portion 102 is located between the cavity 109 and the receiving groove 108, and the second side portion 106 is joined to the second limiting portion 104; a metal layer 110, and the metal layer 110 is attached to at least the surface of the frame body except for the receiving groove 108 and the cavity 109.

[0067] In some embodiments, a sealant (not shown) may also be filled between the contact surface of the receiving groove 108 in the photovoltaic module frame 101 and the surface of the laminate 116 to provide mechanical support and encapsulation protection for the photovoltaic module.

[0068] Those of ordinary skill in the art can understand that the above-described embodiments are specific embodiments for implementing the present application. In actual applications, various changes may be made to them in form and details without departing from the spirit and scope of the present application. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application. Therefore, the protection scope of the present application should be subject to the scope defined by the claims.

Claims

1. A photovoltaic module frame, characterized in that, Comprising: A frame body, the frame body is made of a polyurethane resin matrix and glass fiber through a pultrusion process; wherein, the frame body includes a top bearing portion, a first limiting portion, a second limiting portion, a first side portion, a second side portion and a bottom bearing portion, wherein, the first limiting portion faces the top bearing portion, and the top bearing portion, the second limiting portion and the first limiting portion are sequentially joined to enclose a receiving groove, the top bearing portion, the first side portion, the bottom bearing portion and the second side portion are sequentially joined to enclose a cavity, the top bearing portion is located between the cavity and the receiving groove, and the second side portion is joined to the second limiting portion; A metal layer, the metal layer is at least adhered to the surface of the frame body except for the receiving groove and the cavity; The metal layer includes: A first piece of metal, the first piece of metal is at least adhered to the surface of the second limiting portion and the surface of the second side portion; A second piece of metal, the second piece of metal is at least adhered to the surface of the first side portion and the surface of the bottom bearing portion; Wherein, the thickness of the first piece of metal is greater than the thickness of the second piece of metal.

2. The photovoltaic module frame according to claim 1, wherein The metal layer is also adhered to at least a part of the surface of the receiving groove.

3. The photovoltaic module frame according to claim 1 or 2, wherein The metal layer is a whole piece of metal.

4. The photovoltaic module frame according to claim 3, wherein, The metal layer adhered to the second limiting portion and the second side portion has a first thickness; the metal layer adhered to the first limiting portion, the bottom bearing portion and the first side portion has a second thickness; the second thickness is less than the first thickness.

5. The photovoltaic module frame according to claim 4, wherein, The first thickness is 0.02 mm to 0.2 mm, and the second thickness is 0.01 mm to 0.1 mm.

6. The photovoltaic module frame according to claim 1, wherein The thickness of the metal layer is 0.01 mm to 0.1 mm.

7. The photovoltaic module frame according to claim 1, wherein, The material of the metal layer is aluminum, copper, stainless steel or nickel-plated iron.

8. A photovoltaic module, characterized in that, Comprising: A laminate, the laminate includes a battery cell layer, an encapsulation adhesive film and a cover plate, wherein, the encapsulation adhesive film covers the surface of the battery cell layer, and the cover plate covers the surface of the encapsulation adhesive film facing away from the battery cell layer; The photovoltaic module frame according to any one of claims 1 to 7, an edge portion of the laminate is located in the receiving groove.

Images