Photovoltaic frame, photovoltaic module and mounting structure thereof

Abstract

The application discloses a photovoltaic frame, a photovoltaic module and a mounting structure thereof. The photovoltaic frame comprises a cavity and a clamping piece located at one side of the cavity. The cavity comprises a rectangular accommodating cavity which is surrounded by a first sidewall, a second sidewall, a third sidewall and a fourth sidewall arranged oppositely. The clamping piece is fixedly connected to the third sidewall away from the fourth sidewall. The clamping piece comprises a fifth sidewall and a sixth sidewall which are connected. The fifth sidewall is coplanar with the first sidewall, and the sixth sidewall is arranged oppositely to the third sidewall. The first sidewall and the second sidewall comprise an opening part arranged oppositely. The opening part comprises a first opening which penetrates the first sidewall along a direction perpendicular to the plane where the first sidewall is located. The opening part comprises a second opening which penetrates the second sidewall along a direction perpendicular to the plane where the second sidewall is located. The outer side of the outer wall of the cavity is cancelled, so that the double-side rate of the corresponding photovoltaic module of the photovoltaic frame is improved.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic technology, and more specifically, to a photovoltaic frame, a photovoltaic module, and an installation structure thereof. Background Technology

[0002] In the existing technology, in the manufacturing of photovoltaic modules, the metal frame of the photovoltaic module is limited by the mounting holes. The extended surface of the long frame that contacts the back of the photovoltaic module is relatively wide, which will cause a relatively wide area of ​​the back of the photovoltaic module to be blocked, thus affecting the bifaciality of the photovoltaic module. Summary of the Invention

[0003] In view of this, the present invention provides a photovoltaic frame, a photovoltaic module and its mounting structure to improve the problem of low bifaciality of photovoltaic modules, while ensuring the assembly stability between the photovoltaic frame and other structural components.

[0004] In a first aspect, the present invention provides a photovoltaic frame, including a cavity and a retaining member located on one side of the cavity;

[0005] The cavity includes a rectangular receiving cavity, which is surrounded by a first sidewall, a second sidewall, and a third sidewall and a fourth sidewall that are arranged opposite to each other. The retaining member is fixedly connected to the third sidewall on the side away from the fourth sidewall.

[0006] The retaining member includes a fifth sidewall and a sixth sidewall that are in contact with each other. The fifth sidewall and the first sidewall are coplanar, and the sixth sidewall is disposed opposite to the third sidewall.

[0007] The first sidewall and the second sidewall include openings disposed opposite to each other. The first opening of the opening penetrates the first sidewall in a direction perpendicular to the plane of the first sidewall, and the second opening of the opening penetrates the second sidewall in a direction perpendicular to the plane of the second sidewall.

[0008] In a second aspect, the present invention provides a photovoltaic module, including the aforementioned photovoltaic frame;

[0009] The photovoltaic module further includes a laminate, and the retaining member engages with at least one side of the laminate along the direction of the plane in which the laminate is located;

[0010] Along the direction from the third sidewall to the fourth sidewall, the laminate includes at least a glass plate, a first adhesive film layer, a battery cell, a second adhesive film layer, and a backplate stacked sequentially.

[0011] Thirdly, the present invention provides an installation structure for a photovoltaic module, for use with the photovoltaic module;

[0012] The mounting structure further includes a mounting connector, which includes a first bottom surface and a seventh side wall and an eighth side wall connected to the first bottom surface. The seventh side wall, the first bottom surface, and the eighth side wall surround each other to form a slot structure. It also includes a first connecting portion located on the side of the seventh side wall away from the eighth side wall, and a second connecting portion located on the side of the eighth side wall away from the seventh side wall. The first connecting portion and the second connecting portion are coplanar with the first bottom surface. The first connecting portion includes a third opening penetrating through it along a direction perpendicular to its plane. The second connecting portion includes a fourth opening penetrating through it along a direction perpendicular to its plane.

[0013] The cavity of the photovoltaic frame is inserted into the slot structure, the seventh sidewall is engaged with the first opening, and the eighth sidewall is engaged with the second opening.

[0014] Optionally, where:

[0015] The seventh sidewall includes a first hook protruding toward one side of the eighth sidewall, and the eighth sidewall includes a second hook protruding toward one side of the seventh sidewall;

[0016] The first hook is inserted into the first opening, and the second hook is inserted into the second opening.

[0017] Optionally, where:

[0018] The angle between the plane of the first hook facing the first bottom surface and the plane of the seventh side wall is an acute angle, and the angle between the plane of the second hook facing the first bottom surface and the plane of the eighth side wall is an acute angle;

[0019] Along the direction perpendicular to the first bottom surface, the distance between the first hook facing the first bottom surface and the first bottom surface is H1, and the distance between the first opening facing the first bottom surface and the first bottom surface is H2, where H1 < H2.

[0020] Optionally, where:

[0021] The first hook is formed by bending at least a portion of the surface of the seventh sidewall toward the eighth sidewall. The plane of the seventh sidewall includes a first cutout for forming the first hook, and the first cutout is formed through the plane of the seventh sidewall.

[0022] The second hook is formed by bending at least a portion of the surface of the eighth sidewall toward the seventh sidewall. The plane of the eighth sidewall includes a second cutout for forming the second hook, which is formed through the plane of the eighth sidewall.

[0023] Optionally, where:

[0024] The seventh sidewall includes a first sub-sidewall and a second sub-sidewall that are connected along a first direction. The plane where the first sub-sidewall is located is parallel to the plane where the first sidewall is located. The second sub-sidewall is inclined toward the seventh sidewall on the side away from the eighth sidewall.

[0025] The eighth sidewall includes a third sub-sidewall and a fourth sub-sidewall that are connected along a first direction. The plane in which the third sub-sidewall is located is parallel to the plane in which the second sidewall is located. The fourth sub-sidewall is inclined toward the eighth sidewall on the side away from the seventh sidewall.

[0026] Wherein, the first direction is the direction from the third sidewall to the fourth sidewall.

[0027] Optionally, where:

[0028] The seventh sidewall includes a first sub-part and a second sub-part along a second direction, with a first gap between the first sub-part and the second sub-part.

[0029] The eighth sidewall includes a third sub-part and a fourth sub-part along a second direction, and a second interval is included between the third sub-part and the fourth sub-part;

[0030] The second direction is the length extension direction of the first sidewall.

[0031] Optionally, where:

[0032] Along the second direction, the dimensions of the first interval and the second interval are equal.

[0033] Optionally, where:

[0034] The first connecting portion is located between the first sub-part and the second sub-part, and the second connecting portion is located between the third sub-part and the fourth sub-part.

[0035] Optionally, where:

[0036] The distance between the eighth sidewall and the seventh sidewall is D1, and the distance between the first sidewall and the second sidewall is D2, where D2+1mm<D1≤D2+3mm.

[0037] Compared with the prior art, the photovoltaic frame, photovoltaic module and its installation structure provided by the present invention achieve at least the following beneficial effects:

[0038] This invention provides a photovoltaic frame, a photovoltaic module, and their mounting structure. The photovoltaic frame includes a cavity and a retaining member located on one side of the cavity. By configuring the cavity as a rectangular receiving cavity surrounded by a first sidewall, a second sidewall, and a third sidewall and a fourth sidewall arranged opposite each other, the outer surface of the cavity is eliminated, reducing the shading area of ​​the photovoltaic module by the photovoltaic frame and thus improving the bifaciality of the photovoltaic module corresponding to the photovoltaic frame. Furthermore, this application provides a first opening and a second opening arranged opposite each other on the first and second sidewalls to ensure the assembly stability between the photovoltaic frame and other structural components.

[0039] Of course, any product implementing this invention does not necessarily need to achieve all of the technical effects described above at the same time.

[0040] Other features and advantages of the invention will become clear from the following detailed description of exemplary embodiments of the invention with reference to the accompanying drawings. Attached Figure Description

[0041] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the invention and, together with their description, serve to explain the principles of the invention.

[0042] Figure 1 The image shown is a schematic diagram of a photovoltaic frame provided by the present invention;

[0043] Figure 2 The figure shown is a schematic diagram of a laminate provided by the present invention;

[0044] Figure 3 The diagram shown is a structural schematic of a photovoltaic module provided by the present invention;

[0045] Figure 4 The diagram shown is a structural schematic of an installation connector provided by the present invention.

[0046] Figure 5 The diagram shown is a schematic representation of an installation structure for a photovoltaic module provided by the present invention. Detailed Implementation

[0047] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention.

[0048] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0049] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0050] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0051] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0052] Figure 1 The diagram shown is a structural schematic of a photovoltaic frame provided by the present invention. Please refer to it. Figure 1 This application provides a photovoltaic frame 100, including a cavity 10 and a retaining member 20 located on one side of the cavity 10;

[0053] The cavity 10 includes a rectangular receiving cavity, which is surrounded by a first side wall 11, a second side wall 12, and a third side wall 13 and a fourth side wall 14 arranged opposite to each other. The retaining member 20 is fixedly connected to the side of the third side wall 13 away from the fourth side wall 14.

[0054] The retaining member 20 includes a fifth side wall 15 and a sixth side wall 16 that are in contact with each other. The fifth side wall 15 and the first side wall 11 are coplanar, and the sixth side wall 16 is disposed opposite to the third side wall 13.

[0055] The first sidewall 11 and the second sidewall 12 include openings 30 disposed opposite to each other. The first opening 31 of the opening 30 penetrates the first sidewall 11 in a direction perpendicular to the plane of the first sidewall 11, and the second opening 32 of the opening 30 penetrates the second sidewall 12 in a direction perpendicular to the plane of the second sidewall 12.

[0056] Specifically, this application provides a photovoltaic frame 100, which includes a cavity 10 and a retaining member 20 located on one side of the cavity 10. The cavity 10 provided in this application includes a receiving cavity with a rectangular cross-section, which is surrounded by a first sidewall 11, a second sidewall 12, a third sidewall 13, and a fourth sidewall 14. Specifically, the first sidewall 11 and the second sidewall 12 are arranged opposite to each other, and the third sidewall 13 and the fourth sidewall 14 are arranged opposite to each other. The first side of the first sidewall 11 is connected to the first side of the third sidewall 13, and the second side is connected to the first side of the fourth sidewall 14. The first side of the second sidewall 12 is connected to the second side of the third sidewall 13, and the second side is connected to the second side of the fourth sidewall 14. The retaining member 20 is disposed on the third sidewall 13 away from the third sidewall 13. One side of the fourth sidewall 14, and the first side of the fifth sidewall 15 included in the retaining member 20, is connected to the side where the third sidewall 13 and the first sidewall 11 are connected. The first side of the sixth sidewall 16 included in the retaining member 20 is connected to the second side of the fifth sidewall 15. The fifth sidewall 15 and the first sidewall 11 are coplanar, the sixth sidewall 16 is opposite to the third sidewall 13, and most of the extension direction of the sixth sidewall 16 is parallel to the extension direction of the third sidewall 13. The side of the sixth sidewall 16 away from the fifth sidewall 15 can be inclined toward the third sidewall 13 so that the spatial structure formed by the third sidewall 13, the fifth sidewall 15, and the sixth sidewall 16 can achieve a good locking effect for the structural members locked inside it.

[0057] Furthermore, the photovoltaic frame 100 provided in this application does not have an extended outer wall on the outside of the receiving cavity. Specifically, the outer wall on the side of the second side wall 12 away from the first side wall 11 is removed, thereby avoiding the obstruction of the area of ​​the structural member held in the holder 20 by the setting of the outer wall, which is beneficial to improving the double-sided ratio of the structural member held in the holder 20.

[0058] Furthermore, this application also provides an opening portion 30 on the side wall of the accommodating cavity of the photovoltaic frame 100 provided above. Specifically, a plurality of first openings 31 penetrating the thickness of the first side wall 11 are opened in the direction perpendicular to the plane of the first side wall 11, and a plurality of second openings 32 penetrating the thickness of the second side wall 12 are opened in the direction perpendicular to the plane of the second side wall 12. The first openings 31 and the second openings 32 in a set of opening portions 30 can be symmetrically arranged, so that the assembly between the photovoltaic frame 100 and other structural components can be realized through the first openings 31 and the second openings 32, and the assembly stability between the photovoltaic frame 100 and other structural components can be ensured.

[0059] Figure 2 The figure shown is a schematic diagram of a laminate provided by the present invention. Figure 3 The image shown is a schematic diagram of a photovoltaic module provided by the present invention. Please refer to it. Figure 1Reference Figure 2 and Figure 3 Based on the same inventive concept, this application also provides a photovoltaic module 200, which includes a photovoltaic frame 100, which is any photovoltaic frame 100 provided in this application;

[0060] The photovoltaic module 200 also includes a laminate 40, and along the direction of the plane where the laminate 40 is located, the retaining member 20 engages with at least one side of the laminate 40;

[0061] Along the direction from the third sidewall 13 to the fourth sidewall 14, the laminate 40 includes at least a glass plate 41, a first adhesive film layer 42, a battery cell 43, a second adhesive film layer 44, and a backplate 45 stacked sequentially.

[0062] Specifically, this application also provides a photovoltaic module 200, which includes the aforementioned photovoltaic frame 100 and laminate 40. The laminate 40 is held by the photovoltaic frame 100. Specifically, each holding member 20 engages with one edge area of ​​the laminate 40. Since the photovoltaic frame 100 provided in this application eliminates the setting of the outer wall, it avoids the shading area of ​​the laminate 40 held in the holding member 20, which is beneficial to improving the bifaciality of the laminate 40 held in the holding member 20.

[0063] Furthermore, this application also provides an embodiment of a specific structure for the laminate 40, as follows: Figure 2 As shown, along the direction from the third sidewall 13 to the fourth sidewall 14, the laminate 40 includes a glass plate 41, a first adhesive film layer 42, a battery cell 43, a second adhesive film layer 44, and a back plate 45 stacked sequentially. The back plate 45 may be in contact with the third sidewall 13, and the glass plate 41 may be in contact with the sixth sidewall, so as to achieve a good holding effect of the holding member 20 on the laminate 40.

[0064] Figure 4 The diagram shown is a structural schematic of an installation connector provided by the present invention. Figure 5 The diagram shown is a schematic representation of an installation structure for a photovoltaic module provided by this invention. Please refer to the diagram for further details. Figures 1-3 Reference Figure 4 and Figure 5 Based on the same inventive concept, this application also provides a photovoltaic module mounting structure 300, which is used for any of the photovoltaic modules 200 provided in this application;

[0065] The mounting structure 300 also includes a mounting connector 50, which includes a first bottom surface 51 and a seventh side wall 57 and an eighth side wall 58 connected to the first bottom surface 51. The seventh side wall 57, the first bottom surface 51, and the eighth side wall 58 surround each other to form a slot structure. It also includes a first connecting portion 65 located on the side of the seventh side wall 57 away from the eighth side wall 58, and a second connecting portion 66 located on the side of the eighth side wall 58 away from the seventh side wall 57. The first connecting portion 65 and the second connecting portion 66 are coplanar with the first bottom surface 51. The first connecting portion 65 includes a third opening 67 penetrating through it in a direction perpendicular to its plane, and the second connecting portion 66 includes a fourth opening 68 penetrating through it in a direction perpendicular to its plane.

[0066] The cavity 10 of the photovoltaic frame 100 is inserted into the slot structure, the seventh side wall 57 is engaged with the first opening 31, and the eighth side wall 58 is engaged with the second opening 32.

[0067] Specifically, this application also provides a photovoltaic module mounting structure 300. In addition to the aforementioned photovoltaic module 200, the mounting structure 300 also includes a mounting connector 50. One possible embodiment of the mounting connector 50 is as follows: it includes a first bottom surface 51 and a seventh sidewall 57 and an eighth sidewall 58 respectively connected to both sides of the first bottom surface 51. The seventh sidewall 57 and the eighth sidewall 58 are arranged opposite to each other. The extension direction of the plane containing at least a portion of the seventh sidewall 57 connected to the first bottom surface 51 is parallel to the extension direction of the plane containing at least a portion of the eighth sidewall 58 connected to the first bottom surface 51. Furthermore, the seventh sidewall 57 and the first bottom surface 51... The surface 51 and the eighth sidewall 58 form a slot structure, which can be used to insert the cavity 10 of the photovoltaic frame 100. Specifically, the fourth sidewall 14 of the cavity 10 contacts the first bottom surface 51, at least a portion of the first sidewall 11 contacts at least a portion of the seventh sidewall 57 near the eighth sidewall 58, and at least a portion of the second sidewall 12 contacts at least a portion of the eighth sidewall 58 near the seventh sidewall 57. Furthermore, the seventh sidewall 57 can be engaged with the first opening 31, and the eighth sidewall 58 can be engaged with the second opening 32 to achieve the connection and fixation between the mounting connector 50 and the photovoltaic frame 100.

[0068] Furthermore, the mounting connector 50 may further include a first connecting portion 65 located on the side of the seventh sidewall 57 away from the eighth sidewall 58, and a second connecting portion 66 located on the side of the eighth sidewall 58 away from the seventh sidewall 57. The planes of the first connecting portion 65 and the second connecting portion 66 are coplanar with the first bottom surface 51. Further, along a direction perpendicular to the plane of the first bottom surface 51, a third opening 67 penetrating through its thickness can be provided in the first connecting portion 65, and a fourth opening 68 penetrating through its thickness can be provided in the second connecting portion 66. The presence of the third opening 67 and the fourth opening 68 can also be used to achieve the connection and fixation between the photovoltaic module mounting structure 300 and the structural component for mounting the photovoltaic module 200 using fasteners. Moreover, the area of ​​the first connecting portion 65 and the second connecting portion 66 is relatively small, thereby improving the bifaciality of the photovoltaic module 200 while achieving the connection and fixation between the photovoltaic module mounting structure 300 and the structural component for mounting the photovoltaic module 200.

[0069] It should also be noted that the third opening 67 and the fourth opening 68 can be set as threaded connection holes as required, but this application is not limited to this, and the setting type of the third opening 67 and the fourth opening 68 can be selected respectively according to the requirements.

[0070] Please combine Figures 1-3 Reference Figure 4 and Figure 5 Optionally, the seventh sidewall 57 includes a first hook 54 protruding toward the eighth sidewall 58, and the eighth sidewall 58 includes a second hook 64 protruding toward the seventh sidewall 57.

[0071] The first hook 54 is inserted into the first opening 31, and the second hook 64 is inserted into the second opening 32.

[0072] Specifically, this application also provides an optional embodiment of the photovoltaic module mounting structure 300, in which a first protruding hook 54 is provided on the side of the seventh sidewall 57 facing the eighth sidewall 58, and a second protruding hook 64 is provided on the side of the eighth sidewall 58 facing the seventh sidewall 57. By inserting the first hook 54 into the first opening 31 and the second hook 64 into the second opening 32, the connection and fixation between the photovoltaic module mounting structure 300 and the photovoltaic frame 100 can be achieved.

[0073] Please refer to Figure 1 , Figure 4 and Figure 5 Optionally, the angle between the plane of the first hook 54 facing the first bottom surface 51 and the plane of the seventh side wall 57 is an acute angle, and the angle between the plane of the second hook 64 facing the first bottom surface 51 and the plane of the eighth side wall 58 is an acute angle.

[0074] Along the direction perpendicular to the first bottom surface 51, the distance between the first hook 54 facing the first bottom surface 51 and the first bottom surface 51 is H1, and the distance between the first opening 31 facing the first bottom surface 51 and the first bottom surface 51 is H2, where H1 < H2.

[0075] Specifically, this application also provides an optional embodiment of a photovoltaic module mounting structure 300, wherein the angle between the plane of the first hook 54 facing the first bottom surface 51 and the plane of the seventh sidewall 57 is an acute angle, and the angle between the plane of the second hook 64 facing the first bottom surface 51 and the plane of the eighth sidewall 58 is an acute angle; furthermore, along the direction perpendicular to the first bottom surface 51, the distance between the first hook 54 and the second hook 64 facing the first bottom surface 51 and the first bottom surface 51 can be further set to H1. The distance between the first opening 31 and the second opening 32 facing the first bottom surface 51 and the first bottom surface 51 is H2, where H1 < H2. This arrangement allows the plane where the first hook 54 is located to hold the first opening 31 facing the fourth side wall 14 more tightly between the plane where the seventh side wall 57 is located, and also allows the plane where the second hook 64 is located to hold the second opening 32 facing the fourth side wall 14 more tightly between the plane where the eighth side wall 58 is located, thereby improving the connection and fixing effect between the photovoltaic module mounting structure 300 and the photovoltaic frame 100.

[0076] It should also be added that the seventh sidewall 57 and the first hook 54 formed thereon, and the eighth sidewall 58 and the second hook 64 formed thereon can be made of materials with relatively high hardness to ensure the holding effect between them and the corresponding first opening 31 and second opening 32.

[0077] It should also be added that, along the direction perpendicular to the plane where the first bottom surface 51 is located, the distance by which the first hook 54 exceeds the edge of the first opening 31 facing the fourth side can be 0-1.5mm, and the distance by which the second hook 64 exceeds the edge of the second opening 32 facing the fourth side can be 0-1.5mm. For example, the distance can be selected as 0.2mm, 0.5mm, 0.9mm, 1.2mm, 1.4mm, etc.

[0078] Please refer to Figure 1 , Figure 4 and Figure 5 Optionally, the first hook 54 is formed by bending at least a portion of the surface of the seventh sidewall 57 toward the eighth sidewall 58. The plane of the seventh sidewall 57 includes a first cutout portion 71 for forming the first hook 54, and the first cutout portion 71 is formed through the plane of the seventh sidewall 57.

[0079] The second hook 64 is formed by bending at least a portion of the surface of the eighth sidewall 58 toward the seventh sidewall 57. The plane of the eighth sidewall 58 includes a second cutout portion 72 for forming the second hook 64, which is formed through the plane of the eighth sidewall 58.

[0080] Specifically, this application also provides an optional embodiment of the photovoltaic module mounting structure 300, wherein the first hook 54 is formed by bending at least a portion of the surface of the seventh sidewall 57 toward the eighth sidewall 58. In this case, the plane of the seventh sidewall 57 includes a first hollow portion 71 for forming the first hook 54. The first hollow portion 71 is formed through the plane of the seventh sidewall 57, that is, the first hook 54 is formed by cutting the surface of the seventh sidewall 57 to be bent toward the eighth sidewall 58. Similarly, the second hook 64 is formed by bending at least a portion of the surface of the eighth sidewall 58 toward the seventh sidewall 57. The plane of the eighth sidewall 58 includes a second hollow portion 72 for forming the second hook 64. The second hollow portion 72 is formed through the plane of the eighth sidewall 58, that is, the second hook 64 is formed by cutting the surface of the eighth sidewall 58 to be bent toward the seventh sidewall 57. By inserting the first hook 54 into the first opening 31 and the second hook 64 into the second opening 32, the connection and fixation between the photovoltaic module mounting structure 300 and the photovoltaic frame 100 are achieved, significantly improving the load-bearing capacity of the photovoltaic module mounting structure 300. Specifically, bending the first hook 54 towards the corresponding seventh sidewall 57 makes the seventh sidewall 57 a complete surface, and bending the second hook 64 towards the corresponding eighth sidewall 58 makes the eighth sidewall 58 a complete surface.

[0081] It should also be added that the first hook 54 can also be a protrusion provided on the side of the seventh side wall 57 facing the eighth side wall 58, and the second hook 64 can also be a protrusion provided on the side of the eighth side wall 58 facing the seventh side wall 57. This application does not make specific limitations on this, and the formation method of the first hook 54 and the second hook 64 can be selected according to the needs.

[0082] Please continue to refer to Figure 1 , Figure 4 and Figure 5 Optionally, the seventh sidewall 57 includes a first sub-sidewall 52 and a second sub-sidewall 53 connected along the first direction X. The plane where the first sub-sidewall 52 is located is parallel to the plane where the first sidewall 11 is located, and the second sub-sidewall 53 is inclined toward the side of the seventh sidewall 57 away from the eighth sidewall 58.

[0083] The eighth sidewall 58 includes a third sub-sidewall 62 and a fourth sub-sidewall 63 connected along the first direction X. The plane where the third sub-sidewall 62 is located is parallel to the plane where the second sidewall 12 is located, and the fourth sub-sidewall 63 is inclined toward the side of the eighth sidewall 58 away from the seventh sidewall 57.

[0084] Wherein, the first direction X is the direction from the third sidewall 13 to the fourth sidewall 14.

[0085] Specifically, this application also provides an optional embodiment of a photovoltaic module mounting structure 300, wherein the seventh sidewall 57 includes a first sub-sidewall 52 and a second sub-sidewall 53 connected along a first direction X, wherein the side of the first sub-sidewall 52 away from the second sub-sidewall 53 is connected to the first bottom surface 51, the plane of the first sub-sidewall 52 is parallel to the plane of the first sidewall 11, and the second sub-sidewall 53 is inclined toward the seventh sidewall 57 away from the eighth sidewall 58, so that the receiving cavity can be inserted into the slot structure more smoothly, and the contact effect between the first sub-sidewall 52 and the first sidewall 11 of the receiving cavity is tighter; at the same time, an eighth sidewall 58 can be provided. The system includes a third sub-sidewall 62 and a fourth sub-sidewall 63 connected along the first direction X. The side of the third sub-sidewall 62 away from the fourth sub-sidewall 63 is connected to the first bottom surface 51. The plane of the third sub-sidewall 62 is parallel to the plane of the second sidewall 12. The fourth sub-sidewall 63 is inclined toward the eighth sidewall 58 away from the seventh sidewall 57 to match the arrangement of the seventh sidewall 57. This further makes it easier for the receiving cavity to be inserted into the slot structure. Furthermore, the contact effect between the first sub-sidewall 52 and the first sidewall 11 of the receiving cavity is made tighter, further improving the connection and fixing effect between the photovoltaic module mounting structure 300 and the photovoltaic frame 100.

[0086] Please continue to refer to Figure 1 , Figure 4 and Figure 5 Optionally, the seventh sidewall 57 includes a first sub-part 81 and a second sub-part 82 along the second direction Y, with a first interval W1 between the first sub-part 81 and the second sub-part 82;

[0087] The eighth sidewall 58 includes a third sub-part 83 and a fourth sub-part 84 along the second direction Y, with a second interval W2 between the third sub-part 83 and the fourth sub-part 84;

[0088] The second direction Y is the length extension direction of the first sidewall 11.

[0089] Specifically, this application also provides an optional embodiment of the photovoltaic module mounting structure 300, wherein the seventh sidewall 57 is composed of two parts in the second direction Y, and the eighth sidewall 58 is composed of two parts in the second direction Y. Specifically, the seventh sidewall 57 includes a first sub-part 81 and a second sub-part 82 spaced apart along the second direction Y, with a first interval W1 between the first sub-part 81 and the second sub-part 82; the eighth sidewall 58 includes a third sub-part 83 and a fourth sub-part 84 spaced apart along the second direction Y, with a second interval W2 between the third sub-part 83 and the fourth sub-part 84. This configuration can reduce the stress on the seventh sidewall 57 and the eighth sidewall 58, thereby improving the engagement effect between the seventh sidewall 57 and the eighth sidewall 58 and the photovoltaic frame 100, avoiding the problem of squeezing damage between the mounting connector 50 and the photovoltaic frame 100, and improving the assembly yield between the photovoltaic module mounting structure 300 and the photovoltaic frame 100.

[0090] Please continue to refer to Figure 1 , Figure 4 and Figure 5 Optionally, along the second direction Y, the dimensions of the first interval W1 and the second interval W2 are equal.

[0091] Specifically, this application also provides an optional embodiment of the photovoltaic module mounting structure 300, wherein the dimensions of the first interval W1 between the first sub-part 81 and the second sub-part 82 and the second interval W2 between the third sub-part 83 and the fourth sub-part 84 are equal along the second direction Y, thereby setting the first opening 31 and the second opening 32 symmetrically, and the seventh sidewall 57 and the eighth sidewall 58 symmetrically, which is beneficial to make the clamping effect between the seventh sidewall 57 and the first sidewall 11 the same as the clamping effect between the eighth sidewall 58 and the second sidewall 12, avoiding the problem of different clamping effects caused by different clamping forces on both sides, thereby improving the assembly yield between the photovoltaic module mounting structure 300 and the photovoltaic frame 100.

[0092] Please continue to refer to Figure 1 , Figure 4 and Figure 5 Optionally, the first connecting part 65 is located between the first sub-part 81 and the second sub-part 82, and the second connecting part 66 is located between the third sub-part 83 and the fourth sub-part 84.

[0093] Specifically, this application also provides an optional embodiment of the photovoltaic module mounting structure 300, in which the seventh sidewall 57 includes a first sub-part 81 and a second sub-part 82 spaced apart along the second direction Y, and the eighth sidewall 58 includes a third sub-part 83 and a fourth sub-part 84 spaced apart along the second direction Y, the first connecting part 65 can be further disposed between the first sub-part 81 and the second sub-part 82, and the second connecting part 66 can be disposed between the third sub-part 83 and the fourth sub-part 84; with this arrangement, the area of ​​the first connecting part 65 and the second connecting part 66 can be relatively small, which is beneficial to improving the bifaciality of the photovoltaic module 200.

[0094] Please continue to refer to Figure 1 , Figure 4 and Figure 5 Optionally, the distance between the eighth sidewall 58 and the seventh sidewall 57 is D1, and the distance between the first sidewall 11 and the second sidewall 12 is D2, where D2+1mm<D1≤D2+3mm.

[0095] Specifically, this application also provides an optional embodiment of the photovoltaic module mounting structure 300, in which the distance between the side of the eighth sidewall 58 away from the seventh sidewall 57 and the side of the seventh sidewall 57 away from the eighth sidewall 58 can be set as D1, and the distance between the side of the first sidewall 11 towards the second sidewall 12 and the side of the second sidewall 12 towards the first sidewall 11 can be set as D2, wherein D2+1mm<D1≤D2+3mm can be set so that the distance between the eighth sidewall 58 and the seventh sidewall 57 is greater than the distance between the first sidewall 11 and the second sidewall 12 is greater than D2, so that the process of inserting the receiving cavity into the slot structure can be smoother.

[0096] In addition, to improve the holding effect between the accommodating cavity and the slot structure, flexible structures can also be provided between the seventh side wall 57 and the first side wall 11, and between the eighth side wall 58 and the second side wall 12, so as to further improve the connection and fixing effect between the photovoltaic module mounting structure 300 and the photovoltaic frame 100.

[0097] Furthermore, some structural components of the photovoltaic frame 100 and the photovoltaic module mounting structure 300 provided in this application can be manufactured by pressing blocks, which is easy to process and has a relatively low manufacturing cost.

[0098] As can be seen from the above embodiments, the photovoltaic frame, photovoltaic module and its installation structure provided by the present invention achieve at least the following beneficial effects:

[0099] This invention provides a photovoltaic frame, a photovoltaic module, and their mounting structure. The photovoltaic frame includes a cavity and a retaining member located on one side of the cavity. By configuring the cavity as a rectangular receiving cavity surrounded by a first sidewall, a second sidewall, and a third sidewall and a fourth sidewall arranged opposite each other, the outer surface of the cavity is eliminated, reducing the shading area of ​​the photovoltaic module by the photovoltaic frame and thus improving the bifaciality of the photovoltaic module corresponding to the photovoltaic frame. Furthermore, this application provides a first opening and a second opening arranged opposite each other on the first and second sidewalls to ensure the assembly stability between the photovoltaic frame and other structural components.

[0100] While specific embodiments of the invention have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of the invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. An installation structure for a photovoltaic module, characterized in that, For use in photovoltaic modules, the photovoltaic module includes a photovoltaic frame, the photovoltaic frame includes a cavity, the cavity includes a rectangular receiving cavity, the receiving cavity is surrounded by a first sidewall, a second sidewall, and a third sidewall and a fourth sidewall arranged opposite to each other, the first sidewall and the second sidewall include oppositely arranged openings, the first opening of the openings includes a first opening that penetrates the first sidewall in a direction perpendicular to the plane of the first sidewall, and the second opening of the openings includes a second opening that penetrates the second sidewall in a direction perpendicular to the plane of the second sidewall; The mounting structure further includes a mounting connector, which includes a first bottom surface and a seventh side wall and an eighth side wall connected to the first bottom surface. The seventh side wall, the first bottom surface, and the eighth side wall surround each other to form a slot structure. It also includes a first connecting portion located on the side of the seventh side wall away from the eighth side wall, and a second connecting portion located on the side of the eighth side wall away from the seventh side wall. The first connecting portion and the second connecting portion are coplanar with the first bottom surface. The first connecting portion includes a third opening penetrating through it along a direction perpendicular to its plane. The second connecting portion includes a fourth opening penetrating through it along a direction perpendicular to its plane. The cavity is inserted into the slot structure, the seventh sidewall is engaged with the first opening, and the eighth sidewall is engaged with the second opening; The seventh sidewall includes a first sub-part and a second sub-part along a second direction, with a first gap between the first sub-part and the second sub-part; the eighth sidewall includes a third sub-part and a fourth sub-part along a second direction, with a second gap between the third sub-part and the fourth sub-part; the second direction is the length extension direction of the first sidewall; the first connecting part is located between the first sub-part and the second sub-part, and the second connecting part is located between the third sub-part and the fourth sub-part.

2. The photovoltaic module mounting structure according to claim 1, characterized in that, The seventh sidewall includes a first hook protruding toward one side of the eighth sidewall, and the eighth sidewall includes a second hook protruding toward one side of the seventh sidewall; The first hook is inserted into the first opening, and the second hook is inserted into the second opening.

3. The photovoltaic module mounting structure according to claim 2, characterized in that, The angle between the plane of the first hook facing the first bottom surface and the plane of the seventh side wall is an acute angle, and the angle between the plane of the second hook facing the first bottom surface and the plane of the eighth side wall is an acute angle; Along the direction perpendicular to the first bottom surface, the distance between the first hook facing the first bottom surface and the first bottom surface is H1, and the distance between the first opening facing the first bottom surface and the first bottom surface is H2, where H1 < H2.

4. The photovoltaic module mounting structure according to claim 2, characterized in that, The first hook is formed by bending at least a portion of the surface of the seventh sidewall toward the eighth sidewall. The plane of the seventh sidewall includes a first cutout for forming the first hook, and the first cutout is formed through the plane of the seventh sidewall. The second hook is formed by bending at least a portion of the surface of the eighth sidewall toward the seventh sidewall. The plane of the eighth sidewall includes a second cutout for forming the second hook, which is formed through the plane of the eighth sidewall.

5. The photovoltaic module mounting structure according to claim 2, characterized in that, The seventh sidewall includes a first sub-sidewall and a second sub-sidewall that are connected along a first direction. The plane where the first sub-sidewall is located is parallel to the plane where the first sidewall is located. The second sub-sidewall is inclined toward the seventh sidewall on the side away from the eighth sidewall. The eighth sidewall includes a third sub-sidewall and a fourth sub-sidewall that are connected along a first direction. The plane in which the third sub-sidewall is located is parallel to the plane in which the second sidewall is located. The fourth sub-sidewall is inclined toward the eighth sidewall on the side away from the seventh sidewall. Wherein, the first direction is the direction from the third sidewall to the fourth sidewall.

6. The photovoltaic module mounting structure according to claim 1, characterized in that, Along the second direction, the dimensions of the first interval and the second interval are equal.

7. The photovoltaic module mounting structure according to claim 1, characterized in that, The distance between the eighth sidewall and the seventh sidewall is D1, and the distance between the first sidewall and the second sidewall is D2, where D2+1mm<D1≤D2+3mm.

8. The photovoltaic module mounting structure according to claim 1, characterized in that, The photovoltaic frame also includes a retaining member located on one side of the cavity; The retaining member is fixedly connected to the third sidewall on the side away from the fourth sidewall; The retaining member includes a fifth sidewall and a sixth sidewall that are in contact with each other. The fifth sidewall and the first sidewall are coplanar, and the sixth sidewall is disposed opposite to the third sidewall.

9. The photovoltaic module mounting structure according to claim 8, characterized in that, The photovoltaic module further includes a laminate, and the retaining member engages with at least one side of the laminate along the direction of the plane in which the laminate is located; Along the direction from the third sidewall to the fourth sidewall, the laminate includes at least a glass plate, a first adhesive film layer, a battery cell, a second adhesive film layer, and a backplate stacked sequentially.

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