Frame for photovoltaic module, photovoltaic module and photovoltaic power generation system

Abstract

The utility model discloses a frame for a photovoltaic module, the photovoltaic module and a photovoltaic power generation system. The frame comprises a side wall, an upper wall and a lower wall, the upper wall and the lower wall are located at the upper end and the lower end of the side wall respectively, the upper wall and the lower wall extend towards one side of the side wall, the frame further comprises an installation part arranged between the upper wall and the lower wall, an installation groove is formed between the upper wall and the installation part, the installation groove is suitable for installing a photovoltaic laminated piece, and a connecting groove is formed between the lower wall and the installation part. The lower wall extends upwards to form a protruding part, and / or the bottom of the installation part extends downwards to form a tooth part. The frame has good load performance and can be matched with the first connecting piece, so that the two adjacent frames can be conveniently and rapidly connected.

Description

Technical Field

[0001] The present application relates to the photovoltaic field, and in particular to a frame for a photovoltaic module, a photovoltaic module and a photovoltaic power generation system. Background Art

[0002] Common photovoltaic modules include photovoltaic laminates and frames arranged around the photovoltaic laminates. The frames can fix and seal the photovoltaic laminates, enhance the strength of the photovoltaic modules, extend the practical life of the photovoltaic modules, and also facilitate the transportation and installation of the photovoltaic modules. The frame includes three surfaces: A, B, and C. The A surface is the front surface facing upwards, the B surface is the side support surface, and the C surface is the bottom surface. In order to meet the relevant requirements of photovoltaic modules, the structure of the frame needs to be specially designed to ensure that the photovoltaic modules can pass the load performance test to cope with various severe environments.

[0003] In addition, the photovoltaic power generation system is formed by a large number of photovoltaic modules arranged in an array. Each independent photovoltaic module is usually placed on a bracket, and four clamping block sets are installed at the mounting hole position. The clamping block set includes a clamp, a bolt, a spring washer, a flat washer and a bolt. Then an electric device is used to tighten the bolt. This installation method is complicated and inconvenient to disassemble. Summary of the invention

[0004] One object of the present application is to provide a frame for a photovoltaic module, a photovoltaic module and a photovoltaic power generation system, wherein the frame can give the photovoltaic module better load performance.

[0005] Another object of the present application is to provide a frame for a photovoltaic module, a photovoltaic module and a photovoltaic power generation system, wherein the frame is conducive to simplifying the connection between photovoltaic modules.

[0006] According to one aspect of the present application, a frame for a photovoltaic module is provided, the frame comprising a side wall and an upper wall and a lower wall respectively located at the upper and lower ends of the side wall, the upper wall and the lower wall both extending to one side of the side wall, the frame further comprising a mounting portion arranged between the upper wall and the lower wall, the mounting groove being formed between the upper wall and the mounting portion, the mounting groove being suitable for mounting a photovoltaic laminate, a connecting groove being formed between the lower wall and the mounting portion, the lower wall extending upward to form a protrusion, and / or the bottom of the mounting portion extending downward to form a tooth portion.

[0007] In some embodiments, the upper wall and the lower wall are perpendicular to the side wall.

[0008] In some embodiments, the cross-section of the protrusion is rectangular or arc-shaped, and the cross-section of the tooth portion is rectangular or arc-shaped.

[0009] In some embodiments, the bottom of the mounting portion is inclined so that the distance between the bottom of the mounting portion and the lower wall gradually increases along the extension direction of the lower wall.

[0010] In some embodiments, the top of the mounting portion extends in a direction away from the side wall, so that the length of the top of the mounting portion is greater than the length of the upper wall.

[0011] In some embodiments, the mounting portion forms a mounting cavity penetrating at both ends.

[0012] According to another aspect of the present application, a photovoltaic assembly is provided, comprising a photovoltaic laminate, a plurality of frames arranged around the photovoltaic laminate, and a plurality of second connectors connecting the frames. The second connector comprises two plug-in parts, and the two plug-in parts are adapted to be respectively plugged and matched with the mounting parts of the two frames, so that the second connector connects the two frames end to end.

[0013] According to another aspect of the present application, a photovoltaic power generation system is provided, comprising a plurality of adjacent photovoltaic components and a first connector for connecting adjacent photovoltaic components, the first connector comprising a connecting portion and a joining portion extending upward and toward each other from both ends of the connecting portion, the joining portions at both ends of the first connector being suitable for respectively penetrating into the connecting grooves in two adjacent frame frames to connect the two adjacent frame frames.

[0014] In some embodiments, a transverse limiting cavity is formed between the two joining parts and the connecting parts respectively, and a longitudinal limiting cavity is formed between the two joining parts. When the first connecting member connects two adjacent frame frames, the two fitted side walls are at least partially clamped in the longitudinal limiting cavity, and at least part of the lower walls of the two frames are respectively clamped in the corresponding transverse limiting cavity.

[0015] In some embodiments, when the first connecting member connects two adjacent frames, at least a portion of the surface of the joint portion of the first connecting member is in contact with the bottom of the mounting portion.

[0016] Compared with the prior art, one or more embodiments of the present application include at least one of the following beneficial technical effects: the frame of the present application has good load-bearing performance, and the connecting groove can cooperate with the first connecting member, so that two adjacent frames can be connected conveniently and quickly, which is conducive to simplifying the connection between photovoltaic components; in addition, after the two photovoltaic components are connected through the first connecting member, there is almost no gap between the two photovoltaic components, which is conducive to improving space utilization.

[0017] The above beneficial effects and other beneficial effects of the frame, photovoltaic assembly and photovoltaic power generation system of the present application will be further described in the specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present application, rather than limiting the present application.

[0019] Figure 1 It is a front view of a first embodiment of the frame of the present application;

[0020] Figure 2 It is a front view of a second embodiment of the frame of the present application;

[0021] Figure 3 It is a three-dimensional schematic diagram of a second embodiment of the frame of the present application;

[0022] Figure 4 A variation of the second embodiment of the frame of the present application;

[0023] Figure 5 It is a front view of a third embodiment of the frame of the present application;

[0024] Figure 6 It is a front view of the fourth embodiment of the frame of the present application;

[0025] Figure 7 It is a front view of the fifth embodiment of the frame of the present application;

[0026] Figure 8 This is a partial schematic diagram of the photovoltaic power generation system of the present application, in which only two adjacent photovoltaic modules and a first connector connecting the two photovoltaic modules are shown, and only a partial frame of each photovoltaic module is shown;

[0027] Fig. 9 This is a partial schematic diagram of the photovoltaic assembly of the present application, in which only two frames and a second connecting member for connecting the two frames are shown;

[0028] Fig.10 This is a schematic diagram of an embodiment of the first connecting member of the present application connecting two frames;

[0029] Fig.11 This is a schematic diagram of an embodiment of the first connecting member of the present application connecting two frames;

[0030] Fig.12 A schematic diagram of an embodiment of a first connecting member of the present application;

[0031] Fig.13 A schematic diagram of an embodiment of a first connecting member of the present application;

[0032] Fig.14A schematic diagram of the connection between the first connecting member of the present application and the frame of Example 5;

[0033] In the figure: 100, frame; 110, side wall; 120, upper wall; 130, mounting portion; 131, top surface of mounting portion; 132, bottom surface of mounting portion; 133, inner side surface of mounting portion; 134, tooth portion; 135, extension portion; 136, mounting cavity; 140, lower wall; 141, raised portion; 101, mounting groove; 102, connecting groove; 200, photovoltaic laminate; 300, second connecting member; 310, plug-in portion; 400, first connecting member; 410, connecting portion; 420, joining portion; 421, vertical section; 422, transition section; 423, longitudinal abutting section; 424, transverse abutting section; 401, transverse limiting cavity; 402, longitudinal limiting cavity; 403, raised portion accommodating cavity. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings showing multiple embodiments of the present application. It should be understood that the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments described in the present application, all other embodiments obtained by ordinary technicians in this field without spending creative work will fall within the scope of protection of the present application.

[0035] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0036] Figure 1-Figure 7 Embodiments 1 to 5 of the frame 100 of the present application for a photovoltaic module are illustrated. As shown in the figure, the upper portion of the frame 100 of the present application has a mounting groove 101 opening toward the inside, the middle portion of the frame 100 has a mounting portion 130, and the lower portion of the frame 100 has a connecting groove 102 opening toward the inside.

[0037] The mounting groove 101 of the frame 100 is used to mount the photovoltaic laminate 200, such as Figure 8 As shown, the edges of each photovoltaic laminate 200 are respectively installed in the installation groove 101 of the frame 100. It can be understood by those skilled in the art that the four sides of each photovoltaic laminate 200 are installed in the frame 100. Figure 8For a clearer illustration, the frames 100 for mounting the other two sides of the photovoltaic laminate 200 are not shown.

[0038] The mounting portion 130 of the frame 100 is used to cooperate with the second connecting member 300 to achieve the end-to-end connection of the two frames 100. Fig. 9 As shown, two ends of the second connecting member 300 are suitable for being respectively inserted into the member installation portions 130 of the two frame frames 100 , thereby connecting the two frame frames 100 .

[0039] The connection groove 102 of the frame 100 is used to cooperate with the first connecting member 400 to achieve the connection of two back-to-back frames 100. Fig.10 As shown, when the B surfaces of the frames 100 of two photovoltaic modules are fitted together, the joining portions 420 at both ends of the first connecting member 400 can be respectively inserted into the connecting grooves 102 of the two adjacent frames 100, and the connecting portion 410 connecting the two joining portions 420 is suitable for extending from the opening of one connecting groove 102 through the C surfaces of the two frames 100 to the opening of the other connecting groove 102, so that the two ends of the connecting portion 410 are respectively connected to the two joining portions 420, thereby limiting the relative distance between the two frames 100 through the first connecting member 400, and thus realizing the connection of the two photovoltaic modules.

[0040] The present application provides a connection groove 102 at the lower part of the frame 100, so that two frames 100 that are bonded to the B surface can be quickly connected, which is beneficial to improving the assembly efficiency of multiple photovoltaic modules. In addition, the mounting groove 101, the mounting portion 130 and the connection groove 102 of the present application are arranged in sequence from top to bottom, and the mounting portion 130 is arranged in the middle, which is beneficial to improving the load performance of the frame 100.

[0041] The frame 100 of the present application is further introduced below in combination with various embodiments.

[0042] [Example 1]

[0043] like Figure 1As shown, the frame 100 includes a side wall 110 and an upper wall 120 and a lower wall 140 located at the upper and lower ends of the side wall 110, and the upper wall 120 and the lower wall 140 both extend along one side of the side wall 110 and are perpendicular to the side wall 110. The mounting portion 130 is connected to the side wall 110 and is located between the upper wall 120 and the lower wall 140. The mounting portion 130 forms a mounting cavity 136 that penetrates at both ends, so that the second connecting member 300 is suitable for inserting into the mounting cavity 136 from the end of the mounting portion 130. It is worth mentioning that the second connecting member 300 includes two plug-in portions 310, and the angle between the two plug-in portions 310 is 90°. The two plug-in portions 310 are suitable for inserting into the mounting cavity 136 from one end of the mounting portion 130 of the two frames 100, so that the two frames 100 are connected end to end through the second connecting member 300, and the angle between the two frames 100 after connection is 90°.

[0044] The lower wall 140 extends horizontally perpendicular to the side wall 100 , so that the lower wall 140 can be stably placed on a plane for easy installation. In addition, it is also helpful to simplify the processing of the frame 100 .

[0045] The mounting portion 130 includes a top surface 131 , a bottom surface 132 , and an inner side surface 133 . The top surface 131 , the bottom surface 132 , the inner side surface 133 and the side wall 110 form a mounting cavity 136 . The cross section of the mounting cavity 136 is rectangular.

[0046] The upper wall 120 and the top surface 131 of the mounting portion 130 form a mounting groove 101, and the lower wall 140 and the bottom surface 132 of the mounting portion 130 form a connecting groove 102. In other words, the upper wall 120 is the A surface of the frame 100, the side wall 110 is the B surface of the frame 100, and the lower wall 140 is the C surface of the frame 100.

[0047] The top surface 131 of the mounting portion 130 extends toward one end away from the side wall 110 to form an extension portion 135, and the extension portion 135 protrudes inwardly from the inner side surface 133 of the mounting portion 130, and the distance from the end of the extension portion 135 to the side wall 110 is greater than the distance from the end of the upper wall 120 to the side wall 110. The provision of the extension portion 135 is conducive to improving the installation stability of the photovoltaic laminate 200, and also avoids the mounting portion 130 being too large in size, resulting in material waste.

[0048] In other words, the top of the mounting portion 130 extends in a direction away from the side wall 110 , so that the length of the top of the mounting portion 130 is greater than the length of the upper wall 120 .

[0049] Further, the length of the inner side of the lower wall 140 does not exceed the length of the extension portion 135. In other words, the distance from the end of the lower wall 140 to the side wall 110 does not exceed the distance from the end of the extension portion 135 to the side wall 110. Such a configuration is conducive to saving materials and is also convenient for the installation of the first connecting member 400. If the lower wall 140 is too long, the length of the first connecting member 400 will increase, which is not conducive to the installation of the first connecting member 400. Of course, the length of the inner side of the lower wall 140 should not be too short, otherwise it will not be conducive to improving the load performance of the frame 100. Preferably, the distance from one end of the inner side of the lower wall 140 to the side wall 110 is not less than the distance from the inner side 133 of the mounting portion 130 to the side wall 110.

[0050] [Example 2]

[0051] like Figure 2 , 3 4, the frame 100 of the second embodiment is different from the first embodiment in that: the end of the lower wall 140 away from the side wall 110 extends upward to form a protrusion 141, and the end of the bottom surface 132 of the mounting portion 130 away from the side wall 110 extends downward to form a tooth portion 134, and the tooth portion 134 is opposite to the protrusion 141, and the entrance of the connecting groove 102 is formed therebetween. The function of the tooth portion 134 and the protrusion 141 is to limit the first connecting member 400.

[0052] like Fig.10 , 11 As shown, when the first connecting member 400 connects two frames 100, different positions of its joint portion 420 are limited by the tooth portion 134 and the protrusion 141 respectively, which is beneficial to improve the stability of the first connecting member 400 after installation, so that the first connecting member 400 is not easy to fall off.

[0053] In addition, the provision of the protrusion 141 and the tooth portion 134 is also helpful in improving the load performance of the frame 100 .

[0054] The present application does not limit the specific shapes of the protrusion 141 and the tooth portion 134 . For example, the cross-section of the protrusion 141 and the tooth portion 134 may be rectangular, semicircular, triangular, etc.

[0055] [Example 3]

[0056] like Figure 5 As shown, the frame 100 of the third embodiment is different from the first embodiment in that one end of the lower wall 140 away from the side wall 110 extends upward to form a protrusion 141. The protrusion 141 mainly serves to limit the joint 420 of the first connecting member 400 when the first connecting member 400 connects the two frames 100, which is beneficial to improve the stability of the first connecting member 400 after installation, so that the first connecting member 400 is not easy to fall off.

[0057] In addition, the provision of the protrusion 141 is also helpful in improving the load performance of the frame 100 .

[0058] [Example 4]

[0059] like Figure 6 As shown, the frame 100 of the fourth embodiment is different from the first embodiment in that the bottom surface 132 of the mounting portion 130 extends downward from one end of the side wall 110 to form a tooth portion 134. The tooth portion 134 is mainly used to limit the joint portion 420 of the first connecting member 400 when the first connecting member 400 connects the two frames 100, which is beneficial to improve the stability of the first connecting member 400 after installation, so that the first connecting member 400 is not easy to fall off.

[0060] In addition, by providing the teeth 134 , it is also helpful to improve the load performance of the frame 100 .

[0061] [Example 5]

[0062] like Figure 7 As shown, the difference between the frame of Example 5 and Example 2 is that the bottom surface 132 of the mounting portion 130 is inclined so that the distance between the bottom surface 132 of the mounting portion 130 and the lower wall 140 gradually increases from the side wall 110 to the inside. In other words, the distance between the bottom of the mounting portion 130 and the lower wall 140 gradually increases along the extension direction of the lower wall 140. Setting the bottom surface 132 to be inclined can make the shape of the connecting groove 102 more closely fit the first connecting member 400, so that the bottom surface 132 of the mounting portion 130 can also limit the joint portion 420 of the first connecting member 400, further improving the stability of the first connecting member 400 after installation, so that the first connecting member 400 is not easy to fall off.

[0063] Furthermore, the bottom surface 132 of the mounting portion 130 is tilted, which is also beneficial to further improve the load performance of the frame 100 .

[0064] The present application also provides a photovoltaic assembly, including a photovoltaic laminate 200, a plurality of frames 100 arranged on the sides of the photovoltaic laminate 200, and a plurality of second connectors 300 for connecting the frames 100. The photovoltaic laminate 200 is usually rectangular. In this case, the photovoltaic assembly generally includes four frames 100 arranged around the photovoltaic laminate 200, and the four frames 100 are connected end to end by four second connectors 300. It is worth mentioning that the four frames 100 generally include a pair of longer long frames and a pair of shorter short frames. Of course, the present application does not limit the specific shape of the photovoltaic laminate 200. Those skilled in the art can rotate the frames 100 of the appropriate number and length according to the actual shape of the photovoltaic laminate 200. In addition, the method of connecting the two frames 100 using the second connector 300 belongs to the prior art in the art, and the specific structure and shape of the second connector 300 can refer to the prior art in the art. In one embodiment, the second connector 300 includes two plug-in portions 310 , which are suitable for respectively plugging into the mounting portions 130 of the two frames 100 , that is, inserted into the mounting cavities 136 of the mounting portions 130 , thereby connecting the two frames 100 end to end through the second connector 310 .

[0065] It is worth mentioning that since the first connecting member 400 needs to be inserted from the end of the frame 100, in some embodiments, the first connecting member 400 can be installed first, and then the second connecting member 300 can be installed; in other embodiments, after the second connecting member 300 connects the two frames 100, the lower end surface of the second connecting member 300 is not lower than the bottom surface 132 of the mounting portion 130, thereby avoiding interference between the lower end of the second connecting member 300 and the first connecting member 400.

[0066] The present application also provides a photovoltaic power generation system, which includes a plurality of adjacent photovoltaic modules and a first connector 400 for connecting adjacent photovoltaic modules, and the frame of each photovoltaic module adopts the frame 100 provided in the present application. The first connector 400 is suitable for the B surface of the frame of the module to fit the two photovoltaic modules tightly, and after being connected by the first connector 400, there is almost no gap between the frames of the two photovoltaic modules, which greatly improves the space utilization rate and is conducive to setting more photovoltaic modules in a limited space.

[0067] It is worth mentioning that the following Fig.10 , 11 Only one embodiment of the frame 100 is used, but it does not mean that only the frame 100 of the embodiment in the figure can cooperate with the first connecting member 400. Each embodiment of the frame 100 provided in the present application can cooperate with the first connecting member 400, so as to be connected through the first connecting member 400.

[0068] like Fig.10 , 11As shown, the first connecting member 400 includes a connecting portion 410 and a joining portion 420 extending upward and toward each other from both ends of the connecting portion 410. The joining portions 420 at both ends of the first connecting member 410 are suitable for respectively penetrating into the connecting grooves 102 of the two frames 100 that are fitted on the B surface, thereby connecting the two frames 100 through the first connecting member 400.

[0069] like Fig.12 , 13 As shown, a transverse limiting cavity 401 is formed between the two joining parts 420 and the connecting part 410 respectively, and a longitudinal limiting cavity 402 is formed between the two joining parts 420. Both the transverse limiting cavity 401 and the longitudinal limiting cavity 402 penetrate from front to back, so that when the side walls 110 of the two frames 100 are fitted together, the two fitted side walls 110 are suitable for passing through the longitudinal limiting cavity 402, and the lower walls 140 on both sides are suitable for being inserted into the transverse limiting cavity 401.

[0070] By reasonably controlling the sizes of the transverse limiting cavity 401 and the longitudinal limiting cavity 402, so that the longitudinal size of the transverse limiting cavity 401 is slightly larger than the thickness of the lower wall 140, and the transverse size of the longitudinal limiting cavity 402 is slightly larger than twice the thickness of the side wall 110, it can be ensured that the first connecting member 400 can be smoothly inserted into the connecting groove 102 of the two frame frames 100, and after the connection, there is basically no transverse and longitudinal relative displacement between the two frame frames 100.

[0071] Furthermore, the joining portion 420 includes a vertical section 421, a transition section 422, a longitudinal abutting section 423 and a transverse abutting section 424 extending in sequence from the end of the connecting portion 410, a longitudinal limiting cavity 402 is formed between the longitudinal abutting sections 423 of the two joining portions 420, a transverse limiting cavity 401 is formed between the transverse abutting section 424 and the connecting portion 410, a raised portion accommodating cavity 403 is formed between the end of the transverse abutting section 424 and the vertical section 421, and when the first connecting member 400 connects the two frame frames 100, the raised portion 141 at one end of the lower wall 140 is suitable for being inserted into the raised portion accommodating cavity 403.

[0072] It is worth mentioning that the free end of the transverse abutment section 424 of the first connection member 400 is opposite to the protrusion 141 on the lower wall 140 of the frame 100, and the protrusion 141 can limit the transverse abutment section 424, which is beneficial to increase the connection stability of the first connection member 400. The transition section 422 of the first connection member 400 is opposite to the bottom surface 132 of the mounting portion 130 of the frame 100, and the bottom surface 132 or the teeth 134 on the bottom surface 132 can be limited by the transition section 422, thereby improving the connection stability of the first connection member 400.

[0073] In some embodiments, when the first connecting member 400 connects two adjacent frames 100, at least a portion of the surface of the joint portion 420 of the first connecting member 400 is in contact with the bottom of the mounting portion 130. Fig.14 The bottom surface of the mounting portion 130 limits the coupling portion 420, which is beneficial to improving the connection stability of the first connecting member 400.

[0074] When the frame 100 is subjected to a large external force, the lower wall 140, the side wall 110, the protrusion 141, the tooth portion 134, and the bottom surface 132 of the mounting portion used to limit the first connecting member 400 can limit the deformation of the first connecting member 400, thereby preventing the first connecting member 400 from undergoing a large deformation and failing.

[0075] In some embodiments, in order to reduce the friction between the first connecting member 400 and the frame 100 during installation, the longitudinal abutment section 424 is arranged at an angle so that when the first connecting member 400 connects the two frame frames 100, the lower end of the longitudinal abutment section 424 is away from the side wall 110 located in the longitudinal limiting cavity 402, that is, the friction between the first connecting member 400 and the frame 100 is reduced by reducing the contact area, thereby improving the installation efficiency of the first connecting member 400.

[0076] In some embodiments, in order to reduce the friction between the first connecting member 400 and the frame 100 when installed, the transition section 422 extends downward from the middle to the vertical section 421 and the longitudinal abutment section 423 on both sides, so that when the first connecting member 400 connects the two frames 100, both ends of the transition section 422 are away from the bottom surface 132 of the mounting portion 130, and the middle part of the transition section 422 is close to the bottom surface 132 of the mounting portion 130. In this way, the transition section 422 can be limited by the bottom surface 132, and the difficulty in installation caused by excessive contact area can be avoided.

[0077] It is worth mentioning that the first connecting member 400 can be formed by bending a metal plate, and its processing method is simple.

[0078] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. A frame for a photovoltaic module, characterized in that: The frame includes a side wall and an upper wall and a lower wall respectively located at the upper and lower ends of the side wall, the upper wall and the lower wall are both extended to one side of the side wall, the frame also includes a mounting portion arranged between the upper wall and the lower wall, a mounting groove is formed between the upper wall and the mounting portion, the mounting groove is suitable for installing a photovoltaic laminate, a connecting groove is formed between the lower wall and the mounting portion, the lower wall extends upward to form a protrusion, and / or the bottom of the mounting portion extends downward to form a tooth portion.

2. The frame according to claim 1, characterized in that: The upper wall and the lower wall are both perpendicular to the side wall.

3. The frame according to claim 1, characterized in that: The cross section of the protrusion is rectangular or arc-shaped, and the cross section of the tooth portion is rectangular or arc-shaped.

4. The frame according to claim 2, characterized in that: The bottom of the mounting portion is arranged to be inclined, so that the distance between the bottom of the mounting portion and the lower wall gradually increases along the extending direction of the lower wall.

5. The frame according to any one of claims 1 to 4, characterized in that: The top of the mounting portion is extended in a direction away from the side wall, so that the length of the top of the mounting portion is greater than the length of the upper wall.

6. The frame according to claim 5, characterized in that: The mounting portion forms a mounting cavity with two ends passing through.

7. A photovoltaic module, characterized in that: It includes a photovoltaic laminate, a plurality of frames arranged on the peripheral sides of the photovoltaic laminate, and a plurality of second connectors connecting the frames, the frames are frames as described in any one of claims 1-6, the second connectors include two plug-in parts, and the two plug-in parts are suitable for respectively plugging and cooperating with the mounting parts of two adjacent frames, so that the second connector connects the two frames end to end.

8. A photovoltaic power generation system, comprising a plurality of adjacent photovoltaic modules and a first connector for connecting the adjacent photovoltaic modules, characterized in that: The photovoltaic component is the photovoltaic component described in claim 7, and the first connecting member includes a connecting portion and joining portions extending upward and toward each other from both ends of the connecting portion, and the joining portions at both ends of the first connecting member are suitable for respectively penetrating into the connecting grooves in two adjacent frames to connect the two adjacent photovoltaic components.

9. The photovoltaic power generation system according to claim 8, characterized in that: The frame includes a side wall and an upper wall and a lower wall located at the upper and lower ends of the side wall, the mounting portion is located between the upper wall and the lower wall, the lower wall extends perpendicular to the side wall, and the connecting groove is formed between the lower wall and the mounting portion; A transverse limiting cavity is formed between the two joining parts and the connecting parts respectively, and a longitudinal limiting cavity is formed between the two joining parts. When the first connecting member connects two adjacent frame frames, the two fitted side walls are at least partially clamped in the longitudinal limiting cavity, and at least part of the lower walls of the two frames are respectively clamped in the corresponding transverse limiting cavity.

10. The photovoltaic power generation system according to claim 9, characterized in that: When the first connecting member connects two adjacent frames, at least a portion of the surface of the joint portion of the first connecting member is in contact with the bottom of the mounting portion.

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