Frame structure, photovoltaic module, and construction method

Abstract

Embodiments of the present application relate to the field of photovoltaic modules, and provide a frame structure, a photovoltaic module, and a construction method. The frame structure of the embodiments of the present application comprises a base frame body and multiple fixing members, the base frame body comprising frame edges connected end to end; the fixing members are distributed along a length direction of the frame edges, the bottoms of the fixing members being fixed to the frame edges, the tops of the fixing members being provided with bearing plates, the bearing plates of all the fixing members together forming a bearing surface for bearing a laminated piece, and the bearing surface being located above the base frame body. The frame structure and the photovoltaic module of the embodiments of the present application enable the module to achieve the function of preventing water accumulation and dust accumulation under various mounting conditions, and can improve the efficiency of a back surface, thereby improving power generation efficiency of the module.

Description

A frame structure, a photovoltaic module and a construction method

[0001] The present application claims priority to the Chinese patent application No. 202411102963.2, filed on August 12, 2024, entitled "A frame structure, a photovoltaic module and a construction method", and to the Chinese patent application No. 202421945116.8, filed on August 12, 2024, entitled "A frame structure and a photovoltaic module", the contents of all of which are incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to the field of photovoltaic modules, in particular to a frame structure, a photovoltaic module and a construction method. BACKGROUND

[0003] As a core component of photovoltaic power generation, the main role of a photovoltaic module is to receive light and convert light energy into electrical energy. Since the photovoltaic module has an encapsulation structure, light needs to pass through the glass and adhesive film used for encapsulation before reaching the cell. Under the same light energy conversion rate, the more light energy received by the cell, the more power generated. When dust, water stains and other foreign matter adhere to the surface of the glass, additional scattering and refraction phenomena occur in the propagation of light, resulting in a loss of light, i.e., a reduction in the amount of light energy reaching the surface of the cell, and a reduction in the power generation of the photovoltaic module.

[0004] Currently, in order to enable the photovoltaic module to have the functions of preventing water accumulation and dust accumulation, thereby improving the power generation of the photovoltaic module, the frame structure is usually specially designed. Mode one is to cancel the short side A surface of the frame, i.e., the short side front surface of the frame does not have an edge of a laminated part; mode two is to cancel all the A surfaces of the frame for a full-screen design, i.e., all the front surfaces of the frame do not have an edge of a laminated part.

[0005] However, the frame structure of mode one has requirements for the installation mode of the module, and is only effective for vertically installed modules. Moreover, the above two frame structures support the back edges of the laminated part around, i.e., the frame has a C surface. This frame structure has a large shading area on the back surface of the photovoltaic module, and reduces the back surface efficiency of the laminated part of the photovoltaic module for double-sided power generation.

[0006] SUMMARY

[0007] The purpose of the embodiments of the present application is to provide a frame structure, a photovoltaic module and a construction method, so that the module can achieve the functions of preventing water accumulation and dust accumulation in various installation states, and can improve the back surface efficiency, thereby improving the power generation efficiency of the module.

[0008] In a first aspect, the embodiments of the present application provide a frame structure for fixing a laminated part of a photovoltaic module, the frame structure comprising:

[0009] a base frame, the base frame comprising frame edges connected head to tail;

[0010] a plurality of fixing members for fixing the laminated component, the fixing members being dispersedly arranged along the length direction of the frame edges, the bottom of the fixing members being fixed on the frame edges, the top of the fixing members having supporting plates, the supporting plates of all the fixing members together forming a supporting surface for supporting the laminated component, the supporting surface being located above the base frame.

[0011] In the implementation process, the base frame and the fixing members are connected to form a frame structure, and the supporting surface formed by the supporting plates of the fixing members is used to support and fix the laminated component. The fixing members for supporting the laminated component are dispersedly arranged, and the gap between adjacent fixing members can ensure that the front surface of the laminated component is at least partially unobstructed and the back surface is partially unobstructed, so that the assembly can realize effective drainage and ash removal in various installation states (horizontal or vertical), achieve the functions of preventing water accumulation and ash accumulation, and solve the problem that the traditional photovoltaic assembly is prone to water and ash accumulation, affecting the power generation of the assembly. Since there is a gap between the supporting surface and the base frame, the base frame will not obstruct the laminated component, and the dispersed arrangement of the fixing members can ensure that the back surface of the laminated component is partially unobstructed, thereby improving the back surface efficiency and the power generation efficiency of the assembly.

[0012] In a possible implementation, the fixing member is selected from at least one of a first fixing member and a second fixing member, a cover plate is connected above the supporting plate of the first fixing member, the cover plate and the supporting plate form a containing groove for containing the edge portion of the laminated component, and the opening of the containing groove faces the frame-in direction of the base frame; the top of the supporting plate of the second fixing member is in an open form.

[0013] In the implementation process, the first fixing member or the second fixing member or a combination of the two can be freely selected according to requirements: the first fixing member with the cover plate forms a locking structure, has a good fixing effect on the laminated component, and can improve the back load reliability; the second fixing member does not obstruct the front surface of the laminated component, which not only improves the front surface efficiency, but also improves the effect of preventing water and ash accumulation. The water, ash and other impurities on the front surface of the laminated component can be cleaned not only from the edge of the base frame, but also from the edge of the second fixing member.

[0014] In a possible implementation, at least a part of the number of fixing members are the first fixing members.

[0015] In the implementation process, the frame structure matches the structure design of the conventional photovoltaic module, so that the module can realize the water accumulation prevention and dust accumulation prevention function in various installation states, and the back surface efficiency can be improved, thereby improving the power generation efficiency of the module.

[0016] In a possible implementation, the base frame body is rectangular, and the base frame body includes two long frame sides and two short frame sides, and the fixing members are arranged on the long frame sides and the short frame sides respectively.

[0017] In the implementation process, the frame structure matches the structure design of the conventional photovoltaic module, so that the module can realize the water accumulation prevention and dust accumulation prevention function in various installation states, and the back surface efficiency can be improved, thereby improving the power generation efficiency of the module.

[0018] In a possible implementation, at least part of the fixing members arranged on the long frame sides are the first fixing members.

[0019] In the implementation process, the first fixing members are used to fix the stress concentration areas of the laminated components, for example, the long frame sides, the first fixing members have A surfaces, that is, the front surfaces of the first fixing members can cover part of the edges of the laminated components, so that the fixing and protection effects of the laminated components are improved, and the back load reliability of the module is ensured. When the photovoltaic module is laminated and packaged, the laminated components are separated by the first fixing members, so that the occurrence of the broken boards due to the collision is reduced.

[0020] In a possible implementation, at least part of the fixing members arranged on the short frame sides are the second fixing members.

[0021] In the implementation process, the second fixing members are used to fix the areas with relatively small stress of the laminated components, for example, the short frame sides, the second fixing members do not block the front surfaces of the laminated components, the front surfaces of the laminated components are flush with or higher than the second fixing members, and the water, dust and other impurities can flow out from the edges, so that the module can realize the water accumulation prevention and dust accumulation prevention function in various installation states, the power generation efficiency of the module is improved, and the operation and maintenance cost of the module is reduced.

[0022] In a possible implementation, the bottom ends of part of the fixing members are connected with mounting plates, the mounting plates are located below the base frame body and extend to the inside of the base frame body, and mounting holes are arranged on the mounting plates.

[0023] In the implementation process, the fixing member is used to fix the laminated member, and the mounting plate and the mounting hole at the bottom end of the fixing member are used to mount the photovoltaic module.

[0024] In a possible implementation, the adjacent frame edges are connected by corner codes, the corner codes are sleeve-type corner codes, and the frame edges are inserted into the corner codes.

[0025] In the implementation process, the sleeve-type corner code has at least two functions: first, the connection between the adjacent frame edges is realized, and the connection strength is ensured; and second, the corners of the laminated member are protected, and the damage of the module corners to the panel is effectively reduced. In addition, the sleeve-type corner code ensures that the corner position has no sharp corner, and the corner grinding process can be omitted.

[0026] In a possible implementation, the bottom of the fixing member has a fixing tube, and the frame edges are inserted into the pipe of the fixing tube and fixed together.

[0027] And / or, the fixing member and the frame edge are detachably fixed to adjust the position of the fixing member on the frame edge.

[0028] In the implementation process, the fixing tube of the fixing member is designed in cooperation with the frame edge, so that the fixing effect of the fixing member on the frame edge is ensured, and the adjustable function of the fixing member on the frame edge is realized.

[0029] In a second aspect, the embodiments of the present application provide a photovoltaic module, which comprises a laminated member and the frame structure provided in the first aspect, and the laminated member is located on the bearing surface of the frame structure and is fixed with the fixing member.

[0030] In the implementation process, the module can realize the water and dust accumulation prevention function in various installation states, and the back surface efficiency can be improved, so that the module power generation efficiency is improved.

[0031] In a third aspect, the embodiments of the present application provide a construction method of the frame structure provided in the first aspect, which comprises the following steps:

[0032] S1, selecting a matching basic frame body according to the specification size of the laminated member;

[0033] S2, dispersing a plurality of fixing members for fixing the laminated member on the basic frame body.

[0034] In the implementation process, the matching basic frame body is selected according to the specification size of the laminated member, and the fixing member is arranged to fix the laminated member, so that the frame structure suitable for different laminated members can be constructed, and the fixing member in the frame structure can be universal, thereby saving materials.

[0035] In a possible implementation, the fixing member is arranged according to stress concentration at different positions of the edge of the laminated piece: if the position is a stress concentration area, a first fixing member is arranged; if the position is a non-stress concentration area, a second fixing member is arranged or no fixing member is arranged; wherein the cover plate is connected above the supporting plate of the first fixing member, and the cover plate and the supporting plate form a containing groove for containing the edge part of the laminated piece, and the opening of the containing groove faces the frame-in direction of the base frame; the supporting plate of the second fixing member is in an open form.

[0036] In the implementation process, different fixing members are arranged according to stress concentration of the laminated piece, which not only ensures the reliability of the back load of the assembly, but also improves the effect of preventing water and dust accumulation. BRIEF DESCRIPTION OF DRAWINGS

[0037] Fig. 1 is a structural schematic diagram of a frame structure fixed with a laminated piece according to a first embodiment of the present application;

[0038] Fig. 2 is a sectional structural schematic diagram of the frame structure in Fig. 1 along the line XX;

[0039] Fig. 3 is a structural schematic diagram of a long frame edge part of the frame structure in Fig. 1;

[0040] Fig. 4 is a sectional structural schematic diagram of a first fastening member part in Fig. 2;

[0041] Fig. 5 is a structural schematic diagram of the first fastening member fixed with the laminated piece in Fig. 4;

[0042] Fig. 6 is a sectional structural schematic diagram of the frame structure in Fig. 1 along the line YY;

[0043] Fig. 7 is a structural schematic diagram of a short frame edge part of the frame structure in Fig. 1;

[0044] Fig. 8 is a sectional structural schematic diagram of a first mounting member part in Fig. 6;

[0045] Fig. 9 is a structural schematic diagram of a corner code in Fig. 7;

[0046] Fig. 10 is a structural schematic diagram of a frame structure fixed with a laminated piece according to a second embodiment of the present application;

[0047] Fig. 11 is a sectional structural schematic diagram of the frame structure in Fig. 10 along the line XX;

[0048] Fig. 12 is a sectional structural schematic diagram of a second fastening member part in Fig. 11;

[0049] Fig. 13 is a structural schematic diagram of the second fastening member fixed with the laminated piece in Fig. 11;

[0050] Fig. 14 is a sectional structural schematic diagram of the frame structure in Fig. 10 along the line YY;

[0051] Fig. 15 is a schematic view of a cross-sectional structure of the second mounting member part in Fig. 14;

[0052] Fig. 16 is a schematic view of a structure in which a frame structure according to the third embodiment of the present application is fixed with a laminate.

[0053] Fig. 17 is a schematic view of a structure in which a frame structure according to the fourth embodiment of the present application is fixed with a laminate. DETAILED DESCRIPTION

[0054] In order to make the objects, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0055] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present application is usually placed, and are merely intended to facilitate the description of the present application and simplify the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", and the like are only used to distinguish descriptions and cannot be understood as indicating or implying relative importance.

[0056] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "provided", "mounted", "connected", "linked" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or can be connected inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0057] First Embodiment

[0058] Please refer to FIG. 1, FIG. 2 and FIG. 6, the edge frame structure provided by the embodiment is used for fixing the laminated piece 001 of the photovoltaic module, and the edge frame structure comprises a base frame and a plurality of fixing pieces used for fixing the laminated piece 001, wherein the base frame comprises frame edges connected in a head-to-tail manner; the fixing pieces are arranged in a scattered manner along the length direction of the frame edge, the bottom of the fixing piece is fixed on the frame edge, and the top of the fixing piece is provided with a supporting plate, and the supporting plates of all the fixing pieces jointly form a bearing surface used for bearing the laminated piece 001, and the bearing surface is located above the base frame.

[0059] In the embodiment of the present application, the base frame is used for arranging and fixing the plurality of fixing pieces, and the base frame does not directly act on the laminated piece 001; the shape and size of the base frame are not specifically limited in the present application, and the shape of the base frame can be the same as or different from the shape of the laminated piece 001.

[0060] In the embodiment of the present application, the fixing piece is used for bearing and fixing the laminated piece 001, and the bottom and the top of the fixing piece refer to different positions of the fixing piece, and are not limited to the setting state of the fixing piece after installation; the fixing pieces are arranged in a scattered manner on the base frame to form a partial frame design, and at least the area frame without the fixing piece is free of the A surface and the area frame without the fixing piece is free of the C surface, that is, at least part of the front surface of the edge frame structure is free of the laminated piece 001, part of the back surface of the edge frame structure is free of the laminated piece 001, so that water and dust on the front surface of the laminated piece 001 can flow out of the edge frame from the vacancy in different installation states of the module, thereby achieving the purpose of waterproof and dustproof; and the back surface of the laminated piece 001 is partially unobstructed, thereby reducing the back surface obstruction of the bifacial module and improving the back surface efficiency of the module and reducing the operation and maintenance cost of the module.

[0061] In the embodiment of the present application, the “front surface” and the “back surface” of the laminated piece 001 refer to the two opposite surfaces of the laminated piece 001, and under normal circumstances, the “front surface” refers to the surface of the laminated piece 001 mainly receiving sunlight, and under normal circumstances, it faces the sun, and the “back surface” refers to the surface opposite to the front surface; for the bifacial module, the “back surface” can also receive sunlight and environmental scattered light to generate electricity. The “front surface” and the “back surface” of the edge frame structure also refer to the two opposite surfaces thereof, the “front surface” of the edge frame structure and the “front surface” of the laminated piece are the surfaces on the same side, and the “back surface” of the edge frame structure and the “back surface” of the laminated piece are the surfaces on the same side.

[0062] In the embodiment of the present application, the base frame and the fixing piece are made of hard materials such as metal or plastic. For example, the base frame is a steel piece, such as magnesium-aluminum-zinc plated steel, and the fixing piece is an aluminum piece, such as an aluminum alloy profile, so as to ensure the strength of the whole edge frame structure and reduce the overall weight.

[0063] In some embodiments of the present application, the base frame is rectangular, and the base frame includes two long frame edges 111 and two short frame edges 112, and the long frame edges 111 and the short frame edges 112 are respectively provided with fixing members.

[0064] Please refer to FIG. 7, in some embodiments of the present application, adjacent frame edges are connected by corner codes 150, the corner codes 150 are sleeve type corner codes, and the frame edges are inserted into the corner codes 150. Please refer to FIG. 9, in the present embodiment, the corner codes 150 are one-piece injection molded parts, the corner codes 150 are L-shaped, and each end has a sleeve part 151 with an opening facing outward, and an insertion part 152 extending from the sleeve part 151, the surface of the insertion part 152 has positioning teeth, and a groove is formed between the sleeve part 151 and the insertion part 152. The structure of the corner code 150 connecting the frame edge is that the insertion part 152 is inserted into the frame edge, the groove accommodates the frame edge, and the effect of the frame edge being inserted into the sleeve part 151 is achieved, and the formed base frame is stable as a whole and does not affect the laminated parts. When the photovoltaic module is laminated and packaged, each laminated part 001 is separated by the fixing member, and does not need to be separated by corner paper. The present embodiment adjusts the traditional plug-in type corner code to a sleeve type corner code, avoids conventional risks such as corner seam misalignment, and uses the same fitting mode when assembling the frame edge, which is consistent with the assembly action of the existing frame assembling machine, thereby reducing the disturbance to the frame assembling machine.

[0065] In some embodiments of the present application, the fixing member is selected from at least one of a first fixing member and a second fixing member. Please refer to FIGS. 4, 5 and 8, the supporting plate 121 of the first fixing member is connected with a cover plate 122 above, and the specific connection mode is that the supporting plate 121 is the C face of the frame, the outer side of the supporting plate 121 is connected with a side plate 124, the side plate 124 is the B face of the frame, the side plate 124 is connected with the cover plate 122, the cover plate 122 is the A face of the frame, and the cover plate 122 and the side plate 124, the supporting plate 121 form a containing groove 123 for containing the edge part of the laminated part 001, the opening of the containing groove 123 faces the frame inner direction of the base frame, and the inner wall of the containing groove 123 can be provided with a design capable of increasing the fixing effect on the laminated part 001, such as a glue groove for containing glue or a pattern for increasing friction. In the present embodiment, a glue groove is provided on the inner wall of the cover plate 122. The supporting plate of the second fixing member is in an open form, i.e., there is no part covering the front of the laminated part 001 (no A face). In other embodiments, the cross section of the fixing member can be C-shaped or H-, S- or E-shaped. As an implementation, all the fixing members are first fixing members, and the laminated part 001 is fixed by clamping the corresponding positions of the four edges of the laminated part 001 with multiple first fixing members, and the formed photovoltaic module has high back load stability; as another implementation, all the fixing members are second fixing members, and the laminated part 001 is fixed by gluing and bonding the corresponding positions of the four edges of the laminated part 001 with multiple second fixing members, and the formed photovoltaic module is a full screen design.

[0066] In some embodiments of the present application, at least part of the number of fixing members are first fixing members. Specifically, part of the number of fixing members are first fixing members, and the rest are second fixing members, or all of the fixing members are first fixing members. Specifically, at least part of the number of fixing members on the long frame edge 111 are first fixing members, and at least part of the number of fixing members on the short frame edge 112 are second fixing members. In other embodiments of the present application, the fixing members on each frame edge can be freely selected and combined, and the first fixing members are usually selected at the stress concentration position, and the first fixing members or the second fixing members can be selected at other positions.

[0067] In the present embodiment, all of the fixing members are first fixing members. Specifically, three first fixing members are arranged on each long frame edge 111, and two first fixing members are arranged on each short frame edge 112.

[0068] In other embodiments, different setting schemes can be selected according to actual needs. The fixing members on the long frame edge 111 are combined with the first fixing members and the second fixing members, and all of the fixing members on the short frame edge 112 are second fixing members. This scheme can improve the back load stability and reduce the weight of the assembly by using the first fixing members to be clamped and fixed in the stress concentration area (the long frame edge 111) and cooperating with the second fixing members to be glued and fixed, and using the second fixing members to be glued and fixed in the non-stress concentration area (the short frame edge 112).

[0069] In some embodiments of the present application, please refer to FIG. 3, FIG. 4 and FIG. 6, the bottom end of part of the number of fixing members is connected with a mounting plate 131, the mounting plate 131 is located below the base frame and extends to the inside of the base frame, the mounting plate 131 is provided with a mounting hole 132, the fixing member with the mounting plate 131 is a mounting member, and the fixing member without the mounting plate 131 is a fastening member. As an optional implementation, part of the number of fixing members located on the long frame edge 111 are connected with the mounting plate 131, the mounting member is designed as a C-face mounting hole 132, and the mounting hole 132 meets the use standard.

[0070] Please refer to FIG. 2 and FIG. 3, FIG. 6 and FIG. 7. In the present embodiment, the first fixing members located at both ends of each long frame edge 111 are provided with the mounting plate 131, which are the first mounting members 130, and the first fixing members located in the middle and the first fixing members on the short frame edge 112 are not provided with the mounting plate 131, which are the first fastening members 140.

[0071] In some embodiments of the present application, the bottom of the fixing member has a fixing tube, the frame edge passes through the pipe of the fixing tube and is fixed together, as an implementation, the inner wall of the pipe of the fixing tube has a protruding fixing point to increase the positioning effect between the fixing tube and the frame edge, in the present embodiment, the fixing tube corresponds to the inner wall of the supporting plate 121, and two fixing points are respectively arranged on the opposite inner walls thereof; the fixing member and the frame edge are fixed in a detachable manner to adjust the position of the fixing member on the frame edge, for example, the fixing manner between the frame edge and the fixing tube can be wedge fixing, rivet fixing and rivet fixing, etc. In the present embodiment, the frame edge is a rectangular tube, the fixing member is an aluminum profile, and the fixing tube at the bottom matches the frame edge of the rectangular tube. The frame edge adopts the size of the national standard rectangular tube, reduces the supply chain pressure, and improves the overall rigidity of the assembly by using high-strength steel as the main support body.

[0072] In some embodiments of the present application, the height of the fixing member can be designed to be consistent with the height of the conventional aluminum alloy frame, the height of the fixing member is greater than the height of the base frame and the corner code 150, and the assembly corner part does not directly contact during the packaging process, which can avoid the use of paper corner protection.

[0073] The present embodiment simplifies the original frame structure, and a first fixing member is arranged on the base frame, specifically, a first mounting member 130 and a first fastener 140 are added to the long frame edge 111, and a first fastener 140 is added to the short frame edge 112, to form a combined frame. The long frame edge 111 is composed of a long frame edge 111, two first fixing members (first mounting members 130) with mounting plates 131, and one first fixing member (first fastener 140) without a mounting plate 131; the short frame edge 112 is composed of a short frame edge 112, two first fixing members (first fasteners 140) without mounting plates 131, and two sleeve type corner codes 150.

[0074] The present embodiment can flexibly adjust the frame structure according to the size of the photovoltaic assembly, the use scene and other factors to meet the needs of users. The selection, position and number of the first fixing member and the second fixing member, and the position and number of the mounting member and the fastener can be increased or reduced as needed to ensure the reliability of the photovoltaic assembly and the installation needs of customers.

[0075] The frame structure of the present embodiment can be prepared by pre-fabrication and assembly: the long frame edge 111 part and the short frame edge 112 part are pre-fabricated at the frame factory, and the existing frame assembling machine is slightly modified (clamping aluminum alloy segments) during the frame assembly process, which is basically consistent with the existing process.

[0076] The embodiment also provides a photovoltaic module, which comprises the laminate 001 and the frame structure of the foregoing embodiment, and the laminate 001 is located on the bearing surface of the frame structure and is fixed together with the fixing member.

[0077] In some embodiments of the present application, the laminate 001 and the fixing member can be fixed by bolts, pressing blocks or adhesive according to actual conditions and requirements. The installation mode of the photovoltaic module as a whole is consistent with that of the existing mass-produced module, and the photovoltaic module can be installed by using a beam or a pressing block.

[0078] In the embodiment, the frame structures are all arranged in the same manner (the fixing member is arranged at the same position on the base frame), and when the photovoltaic modules are packed, all the packing tapes are arranged on the short frame edge 112, which is arranged in 4 horizontal rows and 5 vertical rows. The position of the short frame edge 112 on the outer box needs to be marked to ensure the position accuracy of the packing tape. Due to the isolation effect of the fixing member, the laminate 001 is separated after packing. The height of the fixing member is greater than the height of the base frame and the corner code 150, so the modules are not in direct contact at the corner during the packing process, and the use of paper corner guards can be avoided. There is no glue on the corners of the modules, so the risk of secondary overflow of glue can be avoided when the modules are fastened, and therefore the modules can be packed with the glass facing inward, thereby reducing the risk of module panel explosion. The base frames (for example, the magnesium-aluminum-zinc plated steel) are not in contact with each other, so that the contact blackening of the base frames can be avoided. The size of the module is consistent with that of the mass-produced module under the condition that the laminate 001 is the same.

[0079] In addition, the embodiment of the present application provides a construction method of the frame structure of the foregoing embodiment, which comprises the following steps:

[0080] S1, selecting a base frame matched with the size of the laminate 001.

[0081] In the present application, the shape of the base frame can be the same as or different from that of the laminate 001, but the base frame affects the arrangement position of the fixing member, thereby affecting the fixing effect of the fixing member on the laminate 001. Therefore, the size of the base frame needs to be matched with the size of the laminate 001 to ensure that the fixing member on the base frame can fix different laminates 001.

[0082] S2, arranging a plurality of fixing members for fixing the laminate on the base frame in a scattered manner.

[0083] The fixed part is arranged according to stress concentration at different positions of the edge of the laminated piece, that is, a first fixed part is arranged if the position is a stress concentration area, and a second fixed part or no fixed part is arranged if the position is a non-stress concentration area, wherein the cover plate 122 is connected above the supporting plate 121 of the first fixed part, and the cover plate 122 and the supporting plate 121 form a containing groove 123 for containing the edge part of the laminated piece, and the opening of the containing groove 123 faces the frame-in direction of the base frame body; the supporting plate of the second fixed part is in an open form.

[0084] In some embodiments of the present application, the stress concentration at different positions of the edge of the laminated piece can be determined by a bearing experiment, and the stress concentration at different positions of the laminated piece can also be calculated by a stress distribution model.

[0085] Second embodiment

[0086] Please refer to FIGS. 10-15, the difference between the frame structure provided in the present embodiment and the first embodiment is that all the fixed parts are second fixed parts, and the supporting plate 161 of the second fixed part is in an open form.

[0087] Please refer to FIGS. 12 and 13, the supporting plate 161 of the second fixed part is in an open form, that is, there is no part covering the front of the laminated piece (no A surface), and the outer side of the supporting plate 161 can be connected with a side plate 162, and the side plate 162 is the B surface of the frame, or the side plate can not be provided, the front of the laminated piece 001 is flush with or slightly higher than the side plate 162, so as to ensure that the water, dust and other impurities on the front of the laminated piece 001 can flow out smoothly from the edge of the frame.

[0088] In some embodiments of the present application, the surface of the supporting plate 161 and / or the side plate 162 can be provided with a design for increasing the fixing effect of the laminated piece 001, such as a glue injection groove for injecting glue or a pattern for increasing friction. In the present embodiment, the surface of the supporting plate 161 is provided with a pattern, and the surface of the side plate 162 is provided with a glue injection groove, wherein the pattern serves to increase the bonding area and bonding strength, and ensure the bonding reliability; the glue injection groove serves as a side overflow glue groove, ensures the glue extrusion to store the glue, ensures the bonding of the side silicone, controls the upward overflow of the silicone, and ensures the assembly appearance.

[0089] In the present embodiment, three second fixed parts are arranged on each long frame edge 111 at intervals, and two second fixed parts are arranged on each short frame edge 112 at intervals. The second fixed parts located at both ends of each long frame edge 111 are provided with mounting plates 131, that is, the second mounting parts 170, and the second fixed part located in the middle and the second fixed parts on the short frame edges 112 are not provided with mounting plates 131, that is, the second fastening parts 180.

[0090] Third embodiment

[0091] Please refer to FIG. 16, the frame structure provided by the embodiment is different from the first embodiment in that the fixing members are combined in the form of the first fixing members and the second fixing members, that is, part of the fixing members are the first fixing members, and the rest of the fixing members are the second fixing members. Specifically, three first fixing members are arranged on each long frame side 111 at intervals, the first fixing members at both ends of each long frame side 111 are provided with mounting plates 131, that is, the first mounting members 130, and the first fixing member in the middle is not provided with a mounting plate 131, that is, the first fastening member 140. Two second fixing members are arranged on each short frame side 112 at intervals, and the second fixing members are not provided with mounting plates, that is, the second fastening members 180. Of course, according to the actual situation, a plurality of first fixing members and a plurality of second fixing members can be arranged on the long frame side 111; a plurality of first fixing members and a plurality of second fixing members can be arranged on the short frame side 112.

[0092] In summary, the frame structure and the photovoltaic module and the construction method of the embodiment of the present application can realize the functions of preventing water accumulation and dust accumulation under various installation conditions, and can improve the back efficiency, thereby improving the power generation efficiency of the module.

[0093] The above only describes the embodiments of the present application and does not limit the protection scope of the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application. Industrial applicability

[0094] The present application provides a frame structure and a photovoltaic module and a construction method, which can realize the functions of preventing water accumulation and dust accumulation under various installation conditions by the load-bearing surface composed of the fixing members arranged at intervals to support the fixed laminated member, can improve the back efficiency, thereby improving the power generation efficiency of the module, and has industrial applicability.

Claims

1. A frame structure for securing a laminate of a photovoltaic module, characterized by, The frame structure comprises: a base frame comprising frame edges connected head to tail; a plurality of fixing members for fixing the laminated member, the fixing members being arranged dispersedly along the length direction of the frame edges, the bottom of the fixing members being fixed on the frame edges, and the top of the fixing members having a supporting plate, the supporting plates of all the fixing members together forming a supporting surface for supporting the laminated member, the supporting surface being located above the base frame.

2. The bezel structure of claim 1, wherein The fixing members are selected from at least one of a first fixing member and a second fixing member, the supporting plate of the first fixing member being connected with a cover plate above, the cover plate and the supporting plate forming a containing groove for containing the edge part of the laminated member, the opening of the containing groove being directed towards the inside of the base frame; the supporting plate of the second fixing member being in an open form.

3. The bezel structure according to claim 2, wherein At least part of the fixing members are the first fixing members.

4. The bezel structure according to claim 2 or 3, characterized by The base frame is rectangular, the base frame comprising two long frame edges and two short frame edges, the long frame edges and the short frame edges being respectively provided with the fixing members.

5. The bezel structure according to claim 4, wherein At least part of the fixing members located on the long frame edges are the first fixing members.

6. The bezel structure according to claim 4 or 5, characterized by At least part of the fixing members on the short frame edges are the second fixing members.

7. The frame structure according to any one of claims 1 to 6, wherein The bottom end of part of the fixing members is connected with a mounting plate, the mounting plate being located below the base frame and extending towards the inside of the base frame, the mounting plate being provided with mounting holes.

8. The bezel structure according to claim 1 or 4, wherein The adjacent frame edges are connected through corner codes, the corner codes being outer sleeve type corner codes, the frame edges being inserted into the corner codes.

9. The frame structure according to any one of claims 1 to 8, wherein The bottom of the fixing members has a fixing tube, the frame edges being inserted through the tube of the fixing tube and fixed together.

10. The bezel structure of claim 9, wherein, The inner wall of the tube of the fixing tube has a protruding fixing point.

11. The bezel structure according to any one of claims 1 to 10, wherein The fixing members and the frame edges adopt a detachable fixing mode to adjust the position of the fixing members on the frame edges.

12. The bezel structure according to any one of claims 9 to 11, wherein The fixing mode between the frame edges and the fixing tube comprises wedge block fixing, rivet point fixing and rivet fixing.

13. A photovoltaic module, characterized by It comprises a laminated member and the frame structure according to any one of claims 1-12, the laminated member being located on the supporting surface of the frame structure and fixed with the fixing members.

14. A method of constructing a frame structure as claimed in any one of claims 1-12, characterized in that It comprises the following steps: S1, selecting a matching base frame according to the specification size of the laminated member; S2, arranging a plurality of fixing members for fixing the laminated member dispersedly on the base frame.

15. The method of claim 14, wherein, The fixing members are arranged according to the stress concentration situation of different sites of the edge of the laminated member: if the site is a stress concentration area, a first fixing member is arranged; if the site is a non-stress concentration area, a second fixing member is arranged or no fixing member is arranged; wherein the supporting plate of the first fixing member is connected with a cover plate above, the cover plate and the supporting plate forming a containing groove for containing the edge part of the laminated member, the opening of the containing groove being directed towards the inside of the base frame; the supporting plate of the second fixing member being in an open form.

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