Frame structure and photovoltaic module

Abstract

The embodiment of the utility model provides a frame structure and a photovoltaic module, and relates to the field of photovoltaic modules. The frame structure comprises a basic frame body and a plurality of fixing pieces, wherein the basic frame body comprises frame edges which are connected end to end; the fixing parts are distributed in the length direction of the frame edge, the bottoms of the fixing parts are fixed to the frame edge, the tops of the fixing parts are provided with bearing plates, the bearing plates of all the fixing parts jointly form a bearing face used for bearing the laminated part, and the bearing face is located above the basic frame body. According to the frame structure and the photovoltaic module provided by the embodiment of the invention, the module can realize the function of preventing water accumulation and dust accumulation under various installation conditions, and the back efficiency can be improved, so that the power generation efficiency of the module is improved.

Description

Technical Field

[0001] The present application relates to the field of photovoltaic modules. Specifically, it relates to a frame structure and a photovoltaic module. Background Art

[0002] As the core component of photovoltaic power generation, the main function of a photovoltaic module is to receive light and convert light energy into electrical energy. Since the photovoltaic module has a packaging structure, light needs to pass through the glass and encapsulant used for packaging before reaching the solar cell. Under the condition of the same light energy conversion rate, the more light energy received by the solar cell, the more power generated. When dust, water stains and other foreign matters adhere to the glass surface, additional scattering and refraction phenomena will occur during light propagation, resulting in light loss, that is, the light energy reaching the surface of the solar cell is reduced, and the power generation of the photovoltaic module is reduced.

[0003] 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; one way is to cancel the short side A surface of the frame, that is, there is no edge covering the laminate on the front of the short side of the frame; the second way is to cancel the full-screen design of the A surface of all sides of the frame, that is, there is no edge covering the laminate on the front of all sides of the frame.

[0004] However, the frame structure of the above-mentioned first method has requirements for the installation method of the module, and it is only effective for vertically installed modules. Moreover, the above two frame structures will support the back edges around the laminate, that is, the frame has a C surface. This frame structure has a large shielding area on the back of the photovoltaic module, and for the laminate of a bifacial photovoltaic module, it reduces the back efficiency of the module. Summary of the Utility Model

[0005] The purpose of the embodiments of the present application is to provide a frame structure and a photovoltaic module, so that the module can achieve the functions of preventing water accumulation and dust accumulation in various installation states, and can improve the back efficiency, thereby enhancing the power generation efficiency of the module.

[0006] In a first aspect, the embodiments of the present application provide a frame structure for fixing the laminate of a photovoltaic module. The frame structure includes:

[0007] A basic frame body, the basic frame body includes frame edges connected end to end;

[0008] A plurality of fixing members for fixing the laminate, the fixing members are dispersedly arranged along the length direction of the frame edge, the bottom of the fixing member is fixed on the frame edge, the top of the fixing member has a supporting plate, and the supporting plates of all the fixing members together form a bearing surface for supporting the laminate, and the bearing surface is located above the basic frame body.

[0009] In the above implementation process, the base frame is connected to the fixing member to form a frame structure together. The bearing surface composed of the supporting plates of the fixing members is used to support and fix the laminate. Among them, the fixing members for supporting the laminate are arranged dispersedly, and the gaps between adjacent fixing members can ensure at least partial non-blocking of the front surface and partial non-blocking of the back surface of the laminate, enabling the assembly to effectively drain water and ash in various installation states (horizontal or vertical installation), achieving the functions of preventing water accumulation and ash accumulation, and solving the problem that traditional photovoltaic modules are prone to water and ash accumulation, which affects the power generation of the modules; since there is a spacing between the bearing surface and the base frame, the base frame does not block the laminate, and the dispersed arrangement of the fixing members can ensure partial non-blocking of the back surface of the laminate, which can improve the back surface efficiency and thus enhance the power generation efficiency of the module.

[0010] In a possible implementation manner, the fixing member is selected from at least one of a first fixing member and a second fixing member. A covering plate is connected above the supporting plate of the first fixing member, and the covering plate and the supporting plate form a receiving groove for receiving the edge portion of the laminate. The opening of the receiving groove faces the inner direction of the frame of the base frame; the upper part of the supporting plate of the second fixing member is in an open form.

[0011] In the above implementation process, the first fixing member or the second fixing member or a combination of both can be freely selected according to requirements: the first fixing member with a covering plate forms a locking structure, which has a good fixing effect on the laminate and can improve the backload reliability; the second fixing member does not block the front surface of the laminate, which not only improves the front surface efficiency but also can improve the water and ash accumulation prevention effect. Impurities such as water and ash on the front surface of the laminate can be cleaned out not only from the edge of the base frame but also from the edge of the second fixing member.

[0012] In a possible implementation manner, at least a part of the fixing members are the first fixing members.

[0013] In the above implementation process, the laminate is segmented and clamped by multiple first fixing members to form a frame design with a local A surface. The first fixing member has a good fixing effect on the laminate, ensuring the backload reliability of the assembly and solving the problem of insufficient backload of existing full-screen assemblies; the areas where the first fixing members are not provided (the vacant areas between the fixing members and the areas where the second fixing members are provided) achieve partial non-blocking of the front surface of the laminate, and the areas where neither the first fixing member nor the second fixing member is provided achieve partial non-blocking of the back surface of the laminate, thereby realizing the performance of preventing water and ash accumulation and enhancing the power generation efficiency of the module.

[0014] In a possible implementation manner, the base frame is rectangular, and the base frame includes two long frame sides and two short frame sides, and the fixing members are respectively arranged on the long frame sides and the short frame sides.

[0015] In the above implementation process, the frame structure matches the structural design of a conventional photovoltaic module, enabling the module to achieve the functions of preventing water accumulation and dust accumulation in various installation states, and can improve the backside efficiency, thereby enhancing the power generation efficiency of the module.

[0016] In a possible implementation manner, at least a partial number of the fixing members located on the long frame edge are the first fixing members.

[0017] In the above implementation process, for the stress concentration area of the laminate, such as the long frame edge position, the first fixing member is used for fixing. The first fixing member has an A side, that is, the front side has a portion capable of covering the edge of the laminate, improving the fixing and protection effects on the laminate, and ensuring the backload reliability of the module. Moreover, when the photovoltaic modules are stacked and packaged, the laminates are separated by the first fixing members, reducing the occurrence of collision and explosion of the plates.

[0018] In a possible implementation manner, at least a partial number of the fixing members on the short frame edge are the second fixing members.

[0019] In the above implementation process, for the area with relatively small stress of the laminate, such as the short frame edge position, the second fixing member is used for fixing. The second fixing member does not block the front side of the laminate, and the front side of the laminate is flush with or higher than the second fixing member, so that impurities such as water and dust can flow out smoothly from the edge, ensuring that the module can achieve the performance of preventing water accumulation and dust accumulation in various installation states, enhancing the power generation efficiency of the module, and reducing the operation and maintenance cost of the module.

[0020] In a possible implementation manner, the bottom ends of a partial number of the fixing members are connected with mounting plates. The mounting plates are located below the base frame and extend towards the inner direction of the frame of the base frame, and mounting holes are provided on the mounting plates.

[0021] In the above implementation process, the laminate is installed and fixed through the fixing members. At the same time, through the mounting plates and mounting holes at the bottom ends of the fixing members, the overall installation of the photovoltaic module can be realized.

[0022] In a possible implementation manner, adjacent frame edges are connected by corner codes. The corner codes are outer sleeve type corner codes, and the frame edges are inserted into the corner codes.

[0023] In the above implementation process, the outer sleeve type corner codes achieve at least two functions: First, to realize the connection between adjacent frame edges and ensure the connection strength; Second, to protect the corners of the laminate, effectively reducing the collision and explosion of the component corners; In addition, the outer sleeve type corner codes ensure that there are no acute angles at the corner positions, and the corner filing process can be omitted.

[0024] In a possible implementation manner, the bottom of the fixing member has a fixing tube, and the frame edge passes through the pipeline of the fixing tube and is fixed together;

[0025] And / or, a detachable fixing method is adopted between the fixing member and the frame edge to adjust the position of the fixing member on the frame edge.

[0026] In the above implementation process, through the cooperation of the fixing tube design of the fixing member and the frame edge, the fixing effect of the fixing member on the frame edge can be ensured, and the adjustable function of the fixing member on the frame edge is also easy to achieve.

[0027] In a second aspect, an embodiment of the present application provides a photovoltaic module, which includes a laminate and the frame structure provided in the first aspect, and the laminate is located on the bearing surface of the frame structure and is fixed together with the fixing member.

[0028] In the above implementation process, the component can achieve the functions of preventing water accumulation and dust accumulation in various installation states, and can improve the back efficiency, thereby improving the power generation efficiency of the component. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 FIG. is a schematic structural diagram of a frame structure provided in the first embodiment of the present application with a laminate fixed thereto;

[0030] Figure 2 is Figure 1 a schematic cross-sectional structure diagram of the frame structure in along the XX line;

[0031] Figure 3 is Figure 1 a schematic structural diagram of the long frame edge part of the frame structure in;

[0032] Figure 4 is Figure 2 a schematic cross-sectional structure diagram of the first fastener part in;

[0033] Figure 5 is Figure 4 a schematic structural diagram of the first fastener in with a laminate fixed thereto;

[0034] Figure 6 is Figure 1 a schematic cross-sectional structure diagram of the frame structure in along the YY line;

[0035] Figure 7 is Figure 1 a schematic structural diagram of the short frame edge part of the frame structure in;

[0036] Figure 8 is Figure 6 a schematic cross-sectional structure diagram of the first mounting part in;

[0037] Figure 9 is Figure 7 a schematic structural diagram of the corner fitting in;

[0038] Figure 10 Schematic diagram of a structure in which a laminate is fixed to a frame structure provided in the second embodiment of the present application;

[0039] Figure 11 For Figure 10 Cross-sectional structure diagram of the frame structure in along line XX;

[0040] Figure 12 For Figure 11 Cross-sectional structure diagram of a part of the second fastener in ;

[0041] Figure 13 For Figure 11 Schematic diagram of a structure in which a laminate is fixed to the second fastener in ;

[0042] Figure 14 For Figure 10 Cross-sectional structure diagram of the frame structure in along line YY;

[0043] Figure 15 For Figure 14 Cross-sectional structure diagram of a part of the second mounting member in ;

[0044] Figure 16 Schematic diagram of a structure in which a laminate is fixed to a frame structure provided in the third embodiment of the present application.

[0045] Icons: 111 - long frame side; 112 - short frame side; 121 - supporting plate; 122 - covering plate; 123 - receiving groove; 124 - side plate; 130 - first mounting member; 131 - mounting plate; 132 - mounting hole; 140 - first fastener; 150 - corner joint; 151 - outer sleeve part; 152 - insertion part; 161 - supporting plate; 162 - side plate; 170 - second mounting member; 180 - second fastener; 001 - laminate. Detailed implementation manners

[0046] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Usually, the components of the embodiments of the present application described and illustrated herein can be arranged and designed in various different configurations.

[0047] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is customarily placed during use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present application. In addition, terms such as "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be construed as indicating or implying relative importance.

[0048] In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "linked" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0049] First Embodiment

[0050] Please refer to Figure 1 、 Figure 2 and Figure 6 , a frame structure provided in this embodiment is used to fix the laminate 001 of a photovoltaic module. The frame structure includes a base frame and several fixing members for fixing the laminate 001. Among them, the base frame includes frame edges connected end to end; the fixing members are dispersedly arranged along the length direction of the frame edge, the bottom of the fixing member is fixed on the frame edge, and the top of the fixing member has a supporting plate. The supporting plates of all the fixing members together form a bearing surface for supporting the laminate 001, and the bearing surface is located above the base frame.

[0051] In the embodiment of the present application, the role of the base frame is to arrange and fix several fixing members, and it will not directly act on the laminate 001; the present application does not make specific limitations on the shape and size of the base frame. The shape of the base frame can be the same as or different from the shape of the laminate 001.

[0052] In the embodiments of the present application, the function of the fixing member is to support and fix the laminate 001. The bottom and top of the fixing member refer to different positions of the fixing member, rather than defining the installation state of the fixing member. The fixing members are dispersedly arranged on the basic frame to form a partial frame design. At least the border of the area without the fixing member has no A side and the border of the area without the fixing member has no C side, that is, at least partially on the front of the border structure, there is no part covering the front of the laminate 001, and partially on the back of the border structure, there is no part covering the back of the laminate 001, ensuring that water and ash on the front of the laminate 001 can flow out of the border through the gaps in different installation states of the component, achieving the purpose of waterproof and dustproof; moreover, the back of the laminate 001 is partially unobstructed, reducing the backside shading of the bifacial power generation component, improving the back efficiency of the component, and reducing the operation and maintenance cost of the component.

[0053] In the embodiments of the present application, the "front" and "back" of the laminate 001 refer to two opposite surfaces of the laminate 001. Generally, the "front" refers to the surface of the laminate 001 that mainly receives sunlight, and usually faces the sun in normal circumstances. The "back" refers to the surface opposite to the front. For a bifacial power generation component, the "back" can also receive sunlight and ambient scattered light for power generation. The "front" and "back" of the border structure also refer to its two opposite surfaces. The "front" of the border structure and the "front" of the laminate are on the same side surface, and the "back" of the border structure and the "back" of the laminate are on the same side surface.

[0054] In the embodiments of the present application, the materials of the basic frame and the fixing member are both hard materials, such as metal or plastic. Exemplarily, the basic frame is a steel part, such as a galvanized magnesium aluminum zinc steel; the fixing member is an aluminum part, such as an aluminum alloy profile, to ensure the overall strength of the border structure and reduce the overall mass.

[0055] In some embodiments of the present application, the basic frame is rectangular. The basic frame includes two long frame sides 111 and two short frame sides 112, and fixing members are respectively arranged on the long frame sides 111 and the short frame sides 112.

[0056] Please refer to Figure 7 , in some embodiments of the present application, adjacent frame sides are connected by corner codes 150. The corner codes 150 are outer sleeve type corner codes, and the frame sides are inserted into the corner codes 150. Please refer to Figure 9, in this embodiment, the corner fitting 150 is an integrally injection-molded part. The corner fitting 150 is L-shaped, with two ends respectively having an outer sleeve part 151 with an opening facing outwards, and an insertion part 152 extending from within the outer sleeve part 151. The surface of the insertion part 152 has positioning teeth, and a groove is formed between the outer sleeve part 151 and the insertion part 152. The structure of the corner fitting 150 connecting the frame edge is as follows: the insertion part 152 is inserted into the frame edge, and the groove accommodates the frame edge, presenting the effect of the frame edge being inserted into the outer sleeve part 151. Through the length of the insertion part 152 inserted into the frame edge and the function of the positioning teeth, the formed basic frame body is overall stable and does not affect the laminate. When the photovoltaic modules are stacked and packaged, each laminate 001 is separated by a fixing member, and there is no need for corner protection paper to separate them. In the embodiment of the present application, the traditional insertion-type corner fitting is adjusted to an outer sleeve-type corner fitting, avoiding conventional risks such as corner joint misalignment. When assembling the frame edge, the same fitting mode is adopted, which is consistent with the assembly action of the existing frame mounting machine, reducing the disturbance to the frame mounting machine.

[0057] In some embodiments of the present application, the fixing member is selected from at least one of the first fixing member and the second fixing member. Please refer to Figure 4 , Figure 5 and Figure 8 , above the supporting plate 121 of the first fixing member, a covering plate 122 is connected. The specific connection method is as follows: the supporting plate 121 serves as the C surface of the frame, a side plate 124 is connected to the outside of the supporting plate 121, the side plate 124 is the B surface of the frame, the side plate 124 is then connected to the covering plate 122, the covering plate 122 serves as the A surface of the frame, and the covering plate 122, the side plate 124, and the supporting plate 121 form a receiving groove 123 for accommodating the edge part of the laminate 001. The opening of the receiving groove 123 faces the inner direction of the basic frame body. The inner wall of the receiving groove 123 can be provided with a design that can increase the fixing effect on the laminate 001, such as a caulking groove for accommodating caulking or a pattern for increasing friction. In this embodiment, a caulking groove is provided on the inner wall of the covering plate 122. The upper part of the supporting plate of the second fixing member is in an open form, that is, there is no part (no A surface) that will cover the front surface of the laminate 001. In other embodiments, the cross-section of the fixing member can be C-shaped or H, S, E-shaped. As an implementation manner, all the fixing members are the first fixing members, and the laminate 001 is fixed by clamping the corresponding positions of the four peripheral edges of the laminate 001 with multiple first fixing members, and the formed photovoltaic module has high backload stability; as another implementation manner, all the fixing members are the second fixing members, and the laminate 001 is fixed by caulking and bonding the corresponding positions of the four peripheral edges of the laminate 001 with multiple second fixing members, and the formed photovoltaic module is a full-screen design.

[0058] In some embodiments of the present application, at least a portion of the fixings are first fixings. Specifically, among all the fixings, a portion of the fixings are first fixings, and the remaining number of fixings are second fixings, or all the fixings are first fixings. Specifically, at least a portion of the fixings on the long frame side 111 are first fixings, and at least a portion of the fixings on the short frame side 112 are second fixings. In embodiments where the basic frame is of other shapes, the fixings on each frame side can also be freely selected in style and combination. Usually, the first fixing is selected at the location where stress is concentrated, and either the first fixing or the second fixing can be selected at other locations.

[0059] In this embodiment, all the fixing members are first fixing members. Specifically, three first fixing members are arranged at intervals on each long frame side 111 , and two first fixing members are arranged at intervals on each short frame side 112 .

[0060] In other embodiments, different setting schemes can be selected according to actual needs: the fixing members on the long frame side 111 are in the form of a combination of a first fixing member and a second fixing member, and all fixing members on the short frame side 112 are second fixing members. This method uses the first fixing member to clamp and fix in the stress concentration area (long frame side 111) and cooperates with the second fixing member to fix by gluing, and uses the second fixing member to fix by gluing in the non-stress concentration area (short frame side 112), which can improve the back-load stability and reduce the weight of the component.

[0061] In some embodiments of the present application, please refer to Figure 3 , Figure 4 and Figure 6 The bottom ends of some of the fixings are connected with mounting plates 131, which are located below the base frame and extend toward the inside of the base frame. The mounting plates 131 are provided with mounting holes 132. The fixings with mounting plates 131 are mounting parts, and the fixings without mounting plates 131 are fasteners. As an optional embodiment, some of the fixings located on the long frame side 111 are connected with mounting plates 131, and the mounting parts are designed with C-surface mounting holes 132, and the mounting holes 132 meet the use standards.

[0062] Please see Figure 2 and Figure 3 , Figure 6 and Figure 7 In this embodiment, the first fixing members at both ends of each long frame side 111 have mounting plates 131, namely, the first mounting members 130, and the first fixing members in the middle and the first fixing members on the short frame side 112 do not have mounting plates 131, namely, the first fasteners 140.

[0063] In some embodiments of the present application, the bottom of the fixing member has a fixing tube, and the frame edge is inserted through the tube of the fixing tube and fixed together. As an implementation manner, the inner wall of the tube of the fixing tube has raised fixing points to increase the positioning effect between the fixing tube and the frame edge. In this embodiment, two fixing points are respectively provided on the inner wall of the fixing tube corresponding to the supporting plate 121 and its opposite inner wall; a detachable fixing method is adopted between the fixing member and the frame edge to adjust the position of the fixing member on the frame edge. Exemplarily, the fixing method between the frame edge and the fixing tube can be selected from wedge block fixing, rivet point fixing, rivet fixing and other methods. In this 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 national standard rectangular tube size to reduce the supply chain pressure, and high-strength steel is used as the main support body to improve the overall rigidity of the component.

[0064] In some embodiments of the present application, the height of the fixing member can be designed to be the same as the height of a conventional aluminum alloy frame. The height of the fixing member is greater than the height of the basic frame body and the corner fitting 150. During the packing process, the corners of the components do not directly contact, which can avoid the use of paper corner protectors. In addition, a silicone sticker is added at the transition position of the drop between the fixing member and the basic frame body to disperse stress and prevent the board from bursting.

[0065] The embodiment of the present application simplifies the original frame structure, and a first fixing member is provided on the basic frame body. Specifically, a first mounting member 130 and a first fastener 140 are added on the long frame edge 111, and a first fastener 140 is added on the short frame edge 112 to form a combined frame. Among them, the long frame edge 111 part is composed of a long frame edge 111, two first fixing members (first mounting members 130) with mounting plates 131, and a first fixing member (first fastener 140) without a mounting plate 131; the short frame edge 112 part is composed of a short frame edge 112, two first fixing members (first fasteners 140) without mounting plates 131, and two outer sleeve type corner fittings 150.

[0066] The embodiment of the present application can flexibly adjust the frame structure according to factors such as the size of the photovoltaic module and the usage scenario to meet the needs of users. The selection of the first fixing member and the second fixing member, as well as their positions and quantities, and the positions and quantities of the mounting member and the fastener can be increased or decreased as needed to ensure the reliability of the photovoltaic module and the installation requirements of customers.

[0067] The frame structure of the embodiment of the present application can be prepared by a method of prefabrication first and then assembly: the long frame edge 111 part and the short frame edge 112 part are prefabricated in the frame factory, and the existing frame loading machine can be slightly modified (clamping the aluminum alloy section) during the frame assembly process, which can be basically consistent with the existing process.

[0068] This embodiment also provides a photovoltaic module, which includes a laminate 001 and the frame structure of the foregoing embodiment. The laminate 001 is located on the bearing surface of the frame structure and is fixed together with the fixing member.

[0069] In some embodiments of the present application, the laminate 001 and the fixing member can be fixedly installed using bolts according to actual situations and requirements, or can be fixedly installed using a pressing block, or fixedly bonded with glue; the overall installation method of the photovoltaic module is the same as that of existing mass-produced modules, and it can be installed using a cross beam or a pressing block.

[0070] In this embodiment, the structural settings of all the frame structures are the same (the installation positions of the fixing members on the basic frame are the same). When packing multiple photovoltaic modules, all the packing belts are placed on the short frame side 112, 4 horizontally and 5 vertically; position marks of the short frame side 112 need to be added on the outer box to ensure the position accuracy of the packing belts. Due to the isolation effect of the fixing member, the laminates 001 are separated after packing; the height of the fixing member is greater than the height of the basic frame and the corner code 150, and the corners of the components do not directly contact during the packing process, so the use of paper corner protectors can be avoided; there is no glue application at the corners of the components, and the risk of secondary glue overflow can be avoided during fastening, so a packaging method with the glass surface facing inwards can be adopted, thereby reducing the risk of component explosion; there is no mutual contact between the basic frames (for example, in the case of magnesium-aluminum-zinc-coated steel), avoiding the situation of blackening due to contact; under the same conditions of the laminate 001, the component size is the same as that of the mass-produced component.

[0071] In addition, this embodiment of the present application provides a method for constructing the frame structure of the foregoing embodiment, which includes the following steps:

[0072] S1. Select a matching basic frame according to the specification size of the laminate 001.

[0073] In the present application, the shape of the basic frame can be the same as or different from the shape of the laminate 001. However, the basic frame affects the installation position of the fixing member, which will affect the fixing effect of the fixing member on the laminate 001. Therefore, the specification size of the basic frame needs to match the specification size of the laminate to ensure that the fixing members thereon can fix different laminates 001.

[0074] S2. Dispersedly arrange a number of fixing members for fixing the laminate on the basic frame.

[0075] Among them, fixing members are arranged according to the stress concentration conditions at different positions on the edge of the laminate: 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, a covering plate 122 is connected above the supporting plate 121 of the first fixing member, and the covering plate 122 and the supporting plate 121 form a receiving groove 123 for receiving a part of the edge of the laminate, and the opening of the receiving groove 123 faces the inner direction of the base frame; the upper part of the supporting plate of the second fixing member is in an open form.

[0076] In some embodiments of the present application, the stress concentration conditions at different positions on the edge of the laminate can be determined through a bearing experiment, and the stress concentration conditions at different positions on the laminate can also be calculated through a stress distribution model.

[0077] Second Embodiment

[0078] Please refer to Figures 10 - 15 In this embodiment, a frame structure is provided. The difference from the first embodiment is that all the fixing members are second fixing members, and the upper part of the supporting plate 161 of the second fixing member is in an open form.

[0079] Please refer to Figure 12 and Figure 13 As shown in, the upper part of the supporting plate 161 of the second fixing member is in an open form, that is, there is no part that will cover the front side of the laminate 001 (no A side). A side plate 162 can be connected to the outside of the supporting plate 161. The side plate 162 is the B side of the frame, or the side plate can be not provided. The front side of the laminate 001 is flush with or slightly higher than the side plate 162, ensuring that water, ash and other impurities on the front side of the laminate 001 can flow out smoothly from the edge of the frame.

[0080] In some embodiments of the present application, the surface of the supporting plate 161 and / or the side plate 162 can be designed to increase the fixing effect on the laminate 001, such as a caulking groove for accommodating caulking or a pattern for increasing friction. In this embodiment, a pattern is provided on the surface of the supporting plate 161, and a caulking groove is provided on the surface of the side plate 162. Among them, the role of the pattern is to increase the bonding area and bonding strength, ensuring bonding reliability; the role of the caulking groove is to serve as a side overflow caulking groove, ensuring the storage of glue when the glue is extruded, ensuring the bonding of the side silicone, and at the same time controlling the upward overflow of the silicone to ensure the beauty of the assembly.

[0081] In this embodiment, 3 second fixing members are arranged at intervals on each long frame side 111, and 2 second fixing members are arranged at intervals on each short frame side 112. The second fixing members at both ends on each long frame side 111 are provided with mounting plates 131, which are second mounting members 170, and the second fixing members in the middle and the second fixing members on the short frame side 112 are not provided with mounting plates 131, which are second fastening members 180.

[0082] Third Embodiment

[0083] Please refer to Figure 16 , the difference between the frame structure provided in this embodiment and the first embodiment is that: the fixing parts are selected in the form of a combination of the first fixing parts and the second fixing parts, that is, a part of the fixing parts are the first fixing parts, and the remaining fixing parts are the second fixing parts. Specifically, 3 first fixing parts are arranged at intervals on each long frame side 111. The first fixing parts at both ends on each long frame side 111 are provided with mounting plates 131, that is, the first mounting parts 130, and the first fixing parts in the middle do not have mounting plates 131, that is, the first fasteners 140. 2 second fixing parts are arranged at intervals on each short frame side 112, and these second fixing parts do not have mounting plates, that is, the second fasteners 180. Of course, a plurality of first fixing parts and a plurality of second fixing parts can be arranged on the long frame side 111 according to actual conditions; a plurality of first fixing parts and a plurality of second fixing parts can be arranged on the short frame side 112.

[0084] In summary, the frame structure, photovoltaic module and construction method of the embodiments of the present application enable the module to achieve the functions of preventing water accumulation and dust accumulation under various installation conditions, and can improve the back efficiency, thereby enhancing the power generation efficiency of the module.

[0085] The above are only the embodiments of the present application and are not intended to limit the protection scope of the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A frame structure for fixing a laminate of a photovoltaic module, characterized in that: The frame structure comprises: A basic frame, wherein the basic frame includes frame edges connected end to end; A plurality of fixing parts for fixing the laminate, wherein the fixing parts are dispersedly arranged along the length direction of the frame edge, the bottom of the fixing parts is fixed on the frame edge, and the top of the fixing parts has a supporting plate, and the supporting plates of all the fixing parts together constitute a bearing surface for supporting the laminate, and the bearing surface is located above the basic frame.

2. The frame structure according to claim 1, characterized in that: The fixing member is selected from at least one of a first fixing member and a second fixing member, a covering plate is connected above the supporting plate of the first fixing member, the covering plate and the supporting plate form a receiving groove for accommodating the edge portion of the laminate, and the opening of the receiving groove faces the inner direction of the basic frame; the supporting plate of the second fixing member is open above.

3. The frame structure according to claim 2, characterized in that: At least part of the fixing members are the first fixing members.

4. The frame structure according to claim 2, characterized in that: The basic frame is rectangular and includes two long frame sides and two short frame sides. The fixing members are arranged on the long frame sides and the short frame sides respectively.

5. The frame structure according to claim 4, characterized in that: At least part of the fixing members located on the edge of the long frame are the first fixing members.

6. The frame structure according to claim 4, characterized in that: At least part of the fixing members on the short frame sides are second fixing members.

7. The frame structure according to claim 1, characterized in that: The bottom ends of a portion of the fixing members are connected with a mounting plate, the mounting plate is located below the base frame and extends toward the inside of the base frame, and the mounting plate is provided with mounting holes.

8. The frame structure according to claim 1 or 4, characterized in that: Adjacent frame edges are connected by angle codes, which are jacket-type angle codes, and the frame edges are inserted into the angle codes.

9. The frame structure according to claim 1, characterized in that: The bottom of the fixing member has a fixing pipe, and the frame edges are inserted through the pipe of the fixing pipe and fixed together; And / or, a detachable fixing method is adopted between the fixing member and the frame edge to adjust the position of the fixing member on the frame edge.

10. A photovoltaic module, characterized in that: It comprises a laminate and a frame structure as claimed in any one of claims 1 to 9, wherein the laminate is located on the bearing surface of the frame structure and is fixed together with the fixing member.

Images