Photovoltaic frame and photovoltaic module

Abstract

The utility model provides a photovoltaic frame and a photovoltaic module. The photovoltaic frame comprises a long frame and a short frame connected with the long frame, the long frame comprises a first frame and a second frame connected with the first frame, each of the first frame, the second frame and the short frame comprises a first wall and a second wall, and the first frame further comprises a third wall; the first wall, the second wall and the third wall of the first frame define a mounting groove, the first wall and the second wall of the second frame form a first step, the first wall and the second wall of the short frame form a second step, and the mounting groove, the first step and the second step are all used for mounting a photovoltaic cell; the first wall is located on one side of the back of the photovoltaic cell, the second wall is located on one side of the side of the photovoltaic cell, and the third wall is located on one side of the front of the photovoltaic cell. According to the photovoltaic module, accumulation of rainwater and dust on the surface of the photovoltaic cell can be reduced, good power generation performance of the photovoltaic module is guaranteed, the cleaning operation and maintenance cost of the photovoltaic module is reduced, and meanwhile the supporting reliability of the photovoltaic frame to the photovoltaic cell can be guaranteed.

Description

Technical Field

[0001] This application belongs to the field of photovoltaic technology, and particularly relates to a photovoltaic frame 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. A photovoltaic module usually includes a frame and solar cells. The solar cells are installed and supported by the frame. Conventional frames all have an A surface. After the solar cells are installed, the A surface will be higher than the surface of the solar cells. Due to the obstruction of the A surface, dust and water often accumulate on the surface of the photovoltaic module, resulting in a reduction in the power generation of the photovoltaic module. Summary of the Utility Model

[0003] An embodiment of this application provides a photovoltaic frame and a photovoltaic module to solve the problem that dust and water easily accumulate on the surface of existing photovoltaic modules.

[0004] In a first aspect, an embodiment of this application provides a photovoltaic frame. The photovoltaic frame includes a long frame and a short frame connected to the long frame. The long frame includes a first frame and a second frame connected to the first frame. The first frame, the second frame, and the short frame all include a first wall and a second wall. The first frame further includes a third wall. The first wall, the second wall, and the third wall of the first frame define an installation groove. The first wall and the second wall of the second frame form a first step. The first wall and the second wall of the short frame form a second step. The installation groove, the first step, and the second step are all used for installing photovoltaic cells. Among them, the first wall is on one side of the back of the photovoltaic cell, the second wall is on one side of the side of the photovoltaic cell, and the third wall is on one side of the front of the photovoltaic cell.

[0005] Optionally, the width of the second frame is less than the width of the first frame.

[0006] Optionally, both the first frame and the second frame are provided with connection cavities. The photovoltaic frame further includes a first corner fitting. Two ends of the first corner fitting are respectively inserted into the connection cavity of the first frame and the connection cavity of the second frame to connect the first frame and the second frame.

[0007] Optionally, the first corner fitting is in interference fit with the connection cavity of the first frame and the connection cavity of the second frame; or, there is a gap between the first corner fitting and the surface of the connection cavity. The photovoltaic frame further includes a wedge block. The wedge block is inserted into the gap and abuts against the first corner fitting and the surface of the connection cavity respectively.

[0008] Optionally, the cross-section of the connection cavity of the first frame is larger than that of the connection cavity of the second frame. A limiting rib is provided in the connection cavity of the first frame. The limiting rib divides the connection cavity of the first frame into a first cavity and a second cavity. The first cavity is closer to the installation groove than the second cavity. The first corner fitting is in interference fit with the first cavity and the connection cavity of the second frame.

[0009] Optionally, both the long frame and the short frame are provided with connection cavities, and the thickness of the short frame is greater than that of the long frame; the photovoltaic frame further includes a second corner fitting, and both ends of the second corner fitting are respectively inserted into the connection cavity of the long frame and the connection cavity of the short frame to connect the long frame and the short frame.

[0010] Optionally, the difference in thickness between the short frame and the long frame is A, where 0 mm < A ≤ 1 mm.

[0011] Optionally, the first frame is provided with mounting holes, and the photovoltaic cell is provided with locking structures. The mounting holes are matched with the locking structures to connect the photovoltaic cell and the first frame.

[0012] Optionally, the long frame includes the N first frames and M second frames, M = N + 1, and the N first frames and M second frames are alternately connected; or, the long frame includes the X first frames and Y second frames, X = Y + 1, and the X first frames and Y second frames are alternately connected.

[0013] In a second aspect, an embodiment of the present application further provides a photovoltaic module, which includes a photovoltaic cell and the above-mentioned photovoltaic frame, and the photovoltaic cell is installed on the photovoltaic frame.

[0014] For the photovoltaic frame and the photovoltaic module provided by the embodiments of the present application, by setting the first frame of the long frame to include a first wall, a second wall, and a third wall, and setting the second frame and the short frame of the long frame to both include a first wall and a second wall, a structure is formed in which the long frame has no upper surface locally and the short frame has no upper surface entirely. Since there is no obstruction at the position without the upper surface, rainwater and dust on the surface of the photovoltaic module are easily slid off from the position without the upper surface of the photovoltaic frame. Therefore, the accumulation of rainwater and dust on the surface of the photovoltaic cell can be reduced, the good power generation performance of the photovoltaic module can be ensured, the cleaning and operation and maintenance costs of the photovoltaic module can be reduced, and the structure with an upper surface locally in the long frame can ensure the support reliability of the photovoltaic frame for the photovoltaic cell. Description of the Drawings

[0015] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them, the same reference numerals represent the same parts in the following description.

[0016] Figure 1 This is the first structural schematic diagram of the photovoltaic module provided by the embodiment of the present application.

[0017] Figure 2 It is Figure 1 The enlarged structural schematic diagram of the partial A of the photovoltaic module shown.

[0018] Figure 3 It is Figure 1 The structural schematic diagram of another perspective of the photovoltaic module shown.

[0019] Figure 4 It is Figure 3 The enlarged structural schematic diagram of the partial B of the photovoltaic module shown.

[0020] Figure 5 This is the second structural schematic diagram of the photovoltaic module provided by the embodiment of the present application.

[0021] Figure 6 It is Figure 5 The enlarged structural schematic diagram of the partial C of the photovoltaic module shown.

[0022] Figure 7 It is Figure 5 The structural schematic diagram of another perspective of the photovoltaic module shown.

[0023] Figure 8 It is Figure 7 The enlarged structural schematic diagram of the partial D of the photovoltaic module shown.

[0024] Figure 9 This is the structural schematic diagram when the first frame is connected to the photovoltaic cell provided by the embodiment of the present application.

[0025] Figure 10 This is the structural schematic diagram when the second frame or short frame is connected to the photovoltaic cell provided by the embodiment of the present application.

[0026] Figure 11 This is the structural schematic diagram of the long frame provided by the embodiment of the present application.

[0027] Figure 12 It is Figure 11 The bottom view of the long frame shown.

[0028] Figure 13Schematic diagram of the first frame provided by the embodiment of the present application.

[0029] Figure 14 is Figure 13 Bottom view of the first frame shown.

[0030] Figure 15 First side view of the first frame provided by the embodiment of the present application.

[0031] Figure 16 Second side view of the first frame provided by the embodiment of the present application.

[0032] Figure 17 First schematic diagram of the second frame or short frame provided by the embodiment of the present application.

[0033] Figure 18 is Figure 17 Side view of the second frame or short frame shown.

[0034] Figure 19 is Figure 17 Bottom view of the second frame or short frame shown.

[0035] Figure 20 is Figure 19 Schematic diagram when the second corner fitting is installed on the second frame shown.

[0036] Figure 21 Second schematic diagram of the second frame or short frame provided by the embodiment of the present application.

[0037] Figure 22 is Figure 21 Side view of the second frame or short frame shown.

[0038] Figure 23 Schematic diagram of the first corner fitting provided by the embodiment of the present application.

[0039] Figure 24 is Figure 23 Top view of the first corner fitting shown.

[0040] Figure 25 First schematic diagram of the second corner fitting provided by the embodiment of the present application.

[0041] Figure 26 Second schematic diagram of the second corner fitting provided by the embodiment of the present application.

[0042] Figure 27 Schematic diagram when multiple photovoltaic modules are stacked provided by the embodiment of the present application.

[0043] Figure 28 is Figure 27Schematic structural diagram of another perspective when multiple photovoltaic modules are stacked as shown.

[0044] Explanation of the reference numerals in the attached drawings:

[0045] 1. Photovoltaic module; 2. Gap; 100. Photovoltaic frame; 101. First wall; 102. Second wall; 103. Third wall; 104. Installation groove; 105. First step; 106. Second step; 107. Connection cavity; 1071. First cavity; 1072. Second cavity; 108. Limit rib; 109. Installation hole; 110. Long frame; 111. First frame; 112. Second frame; 120. Short frame; 130. First corner code; 140. Second corner code; 200. Photovoltaic cell; 300. Adhesive. Detailed implementation manners

[0046] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present application.

[0047] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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 thus cannot be understood as a limitation to the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality of" means two or more unless otherwise specifically defined.

[0048] In the present application, the term "exemplary" is used to mean "serving as an example, illustration, or description". Any embodiment described as "exemplary" in the present application is not necessarily construed as being more preferred or having more advantages than other embodiments.

[0049] The embodiments of the present application provide a photovoltaic frame 100 and a photovoltaic module 1. As Figures 1 - 8 shown, the photovoltaic module 1 includes a photovoltaic frame 100 and a photovoltaic cell 200, and the photovoltaic cell 200 is installed on the photovoltaic frame 100.

[0050] The photovoltaic cell 200, as the core component for receiving light energy, under the condition of the same light energy conversion rate, the more light energy the photovoltaic cell 200 receives, the more power is generated. When dust, stains or other foreign objects appear on the surface of the photovoltaic cell 200, additional scattering and refraction phenomena will occur in the light propagation, resulting in light loss, reducing the light energy received by the photovoltaic cell, and reducing the power generation of the photovoltaic module 1.

[0051] In traditional photovoltaic modules, the upper surface of the photovoltaic frame is higher than the upper surface of the photovoltaic cell, thus forming a structure that is prone to water and dust accumulation. As a result, when the photovoltaic module is placed outdoors for a long time, a large amount of water stains and dust will accumulate on the surface of the photovoltaic module, affecting power generation. In order to maintain the high-efficiency power generation of the photovoltaic module, it is necessary to regularly clean and maintain the photovoltaic module, which increases the operation and maintenance costs. In order to reduce the operation and maintenance costs, in some technologies, the photovoltaic frame is designed to have no upper surface structure. Although this solution can ensure that the photovoltaic module 1 effectively prevents water and dust accumulation, it will reduce the support reliability for the photovoltaic cell.

[0052] To take into account both good power generation and the support reliability for the photovoltaic cell 200, as Figures 1 - 22 shown, the photovoltaic frame 100 provided in the embodiment of the present application includes a long frame 110 and a short frame 120 connected to the long frame 110. The long frame 110 includes a first frame 111 and a second frame 112 connected to the first frame 111. The first frame 111, the second frame 112 and the short frame 120 all include a first wall 101 and a second wall 102. The first frame 111 further includes a third wall 103. The first wall 101, the second wall 102 and the third wall 103 of the first frame 111 define an installation groove 104. The first wall 101 and the second wall 102 of the second frame 112 form a first step 105. The first wall 101 and the second wall 102 of the short frame 120 form a second step 106. The installation groove 104, the first step 105 and the second step 106 are all used for installing the photovoltaic cell 200. Among them, as Figure 9 and Figure 10 shown, the first wall 101 is on the side of the back of the photovoltaic cell 200, the second wall 102 is on the side of the side of the photovoltaic cell 200, and the third wall 103 is on the side of the front of the photovoltaic cell 200.

[0053] The photovoltaic frame 100 and the photovoltaic module 1 provided by the embodiments of the present application are configured such that the first frame 111 of the long frame 110 includes a first wall 101, a second wall 102, and a third wall 103, and the second frame 112 of the long frame 110 and the short frame 120 both include the first wall 101 and the second wall 102. As a result, the photovoltaic frame 100 forms a structure where the long frame 110 has a partial upper surface missing and the short frame 120 has the entire upper surface missing. Since there is no obstruction at the position without the upper surface, rainwater and dust on the surface of the photovoltaic module 1 can easily slide off from the position without the upper surface of the photovoltaic frame 100. This can reduce the accumulation of rainwater and dust on the surface of the photovoltaic cell 200, ensure good power generation performance of the photovoltaic module 1, and reduce the cleaning and operation and maintenance costs of the photovoltaic module 1. Moreover, the structure of the long frame 110 with a partial upper surface can ensure the backloading reliability of the photovoltaic frame 100 for the photovoltaic cell 200, and the structure of the long frame 110 with a partial upper surface missing and the short frame 120 with the entire upper surface missing can reduce the material cost.

[0054] For ease of understanding, the first wall 101, the second wall 102, and the third wall 103 can be defined as the C surface, the B surface, and the A surface respectively. Then, the first frame 111 has the A surface, while the second frame 112 and the short frame 120 both have no A surface. That is, the entire photovoltaic frame 100 forms a structure where the long frame 110 has a partial A surface missing and the short frame 120 has the entire A surface missing. Since the first wall 101 of the second frame 112 and the first wall 101 of the short frame 120 are located on the back side of the photovoltaic cell 200, when the photovoltaic cell 200 is placed with the front side facing up, the first wall 101 of the second frame 112 and the first wall 101 of the short frame 120 are lower than the front side of the photovoltaic cell 200. This is conducive to the automatic cleaning of rainwater and dust. It can be understood that there are areas without the A surface on each side of the photovoltaic cell 200. Since there is no obstruction in the area without the A surface, a flowing water area can be formed, enabling the dust and rainwater on the surface of the photovoltaic cell 200 to slide off from the flowing water area. Thus, the function of preventing dust and water accumulation can be effectively achieved under various installation conditions (horizontal or vertical installation) to ensure good power generation performance of the photovoltaic module 1 and reduce the cleaning and operation and maintenance costs of the photovoltaic module 1.

[0055] It can be understood that since the long frame 110 has a partial A surface and the short frame 120 has the entire A surface missing, the part of the entire photovoltaic frame 100 with the A surface will be higher than the part without the A surface, forming a high-low dislocation design. Thus, when multiple photovoltaic modules 1 are stacked together for packaging, as Figure 27 and Figure 28 shown, a gap 2 will be formed between the corners of two adjacent photovoltaic modules 1. There is no need to install corner protection paper for separation, and it can avoid scratching of the corners during the packaging process, making the appearance after packaging better.

[0056] Optionally, the number of long side frames 110 and short side frames 120 can both be multiple. The multiple long side frames 110 and multiple short side frames 120 enclose a ring-shaped frame, which can be specifically set according to the number of long sides and short sides of the photovoltaic cell 200. Exemplarily, the photovoltaic cell 200 includes two long sides and two short sides. As Figure 1 , Figure 3 , Figure 5 and Figure 7 shown, the photovoltaic frame 100 includes two long side frames 110 and two short side frames 120. The two long side frames 110 and two short side frames 120 are alternately connected and enclose a rectangular frame. The two long sides of the photovoltaic cell 200 are correspondingly installed on the two long side frames 110, and the two short sides are correspondingly installed on the two short side frames 120. It can be understood that the stress of the photovoltaic cell 200 is mainly concentrated on the long sides. Therefore, the long side frames 110 corresponding to the long sides are set to have a structure with surface A locally, and the part with surface A corresponds to the stress concentration area of the photovoltaic cell 200, which can ensure the backload reliability of the photovoltaic module 1.

[0057] Specifically, as Figure 9 and Figure 10 shown, the photovoltaic cell 200 can be partially inserted into the installation groove 104 of the first frame 111 and fixedly connected to the first frame 111 through the bonding action of the adhesive 300; at the same time, the photovoltaic cell 200 also overlaps on the first step 105 of the second frame 112 and the second step 106 of the short side frame 120, and is fixedly connected to the second frame 112 and the short side frame 120 respectively through the bonding action of the adhesive 300, so as to realize the installation of the photovoltaic cell 200 on the photovoltaic frame 100. Among them, after the photovoltaic cell 200 is fixedly connected to the installation groove 104, as Figure 9 shown, the first wall 101 of the first frame 111 is on one side of the back surface of the photovoltaic cell 200, the second wall 102 of the first frame 111 is on one side of the side surface of the photovoltaic cell 200, and the third wall 103 of the first frame 111 is on one side of the front surface of the photovoltaic cell 200; after the photovoltaic cell 200 is fixedly connected to the first step 105, as Figure 10 shown, the first wall 101 of the second frame 112 is on one side of the back surface of the photovoltaic cell 200, and the second wall 102 of the second frame 112 is on one side of the side surface of the photovoltaic cell 200; after the photovoltaic cell 200 is fixedly connected to the second step 106, as Figure 10 shown, the first wall 101 of the short side frame 120 is on one side of the back surface of the photovoltaic cell 200, and the second wall 102 of the short side frame 120 is on one side of the side surface of the photovoltaic cell 200.

[0058] In some embodiments of the present application, the width of the second frame 112 is less than the width of the first frame 111. That is to say, the cross-section of the second frame 112 is smaller than that of the first frame 111. Therefore, it can be understood that the long frame 110 is formed by splicing multiple frames with different cross-sections, thereby ensuring the material economy of the photovoltaic module 1. By adopting a multi-segment splicing design for the long frame 110, the usage amount of the frame material can be effectively reduced, the weight of the module can be effectively reduced, and the installation difficulty can be reduced at the same time. Through experimental verification, when the lengths of the first frame 111 and the second frame 112 remain unchanged, compared with the scheme where the widths of the first frame 111 and the second frame 112 are the same, by setting the width of the second frame 112 to be less than the width of the first frame 111, the material weight can be reduced by about 20%.

[0059] In some embodiments of the present application, both the first frame 111 and the second frame 112 are provided with connection cavities 107, and the photovoltaic frame 100 further includes a first corner fitting 130 (as Figure 23 and Figure 24 shown), as Figure 11 and Figure 12 shown, both ends of the first corner fitting 130 are respectively inserted into the connection cavity 107 of the first frame 111 and the connection cavity 107 of the second frame 112 to connect the first frame 111 and the second frame 112. Specifically, one end of the first corner fitting 130 is inserted into the connection cavity 107 of the first frame 111 from the end of the first frame 111, and the other end of the first corner fitting 130 is inserted into its connection cavity 107 from the end of the second frame 112, thereby realizing the splicing of the first frame 111 and the second frame 112 under the connection of the first corner fitting 130.

[0060] Optionally, as Figure 11 and Figure 12 shown, the first corner fitting 130 is in interference fit with both the connection cavity 107 of the first frame 111 and the connection cavity 107 of the second frame 112 to realize the connection between the first frame 111 and the second frame 112. By fixing the first corner fitting 130 in the connection cavities 107 of the first frame 111 and the second frame 112 in an interference fit manner, the production cost can be effectively saved.

[0061] Or, there is a gap between the surface of the first corner fitting 130 and the connection cavity 107. The photovoltaic frame 100 further includes a wedge-shaped block. The wedge-shaped block is inserted into the gap and abuts against the surface of both the first corner fitting 130 and the connection cavity 107. By adopting this scheme, the first corner fitting 130 can also be fixed in the connection cavities 107 of the first frame 111 and the second frame 112 to realize the connection between the first frame 111 and the second frame 112.

[0062] Optionally, the cross-section of the connection cavity 107 of the first frame 111 is larger than that of the connection cavity 107 of the second frame 112. As Figure 16 shown, a limiting rib 108 is provided in the connection cavity 107 of the first frame 111. The limiting rib 108 divides the connection cavity 107 of the first frame 111 into a first cavity 1071 and a second cavity 1072. The first cavity 1071 is closer to the installation groove 104 than the second cavity 1072. The first corner fitting 130 is in interference fit with the first cavity 1071 and the connection cavity 107 of the second frame 112.

[0063] In some embodiments of the present application, both the long frame 110 and the short frame 120 are provided with connection cavities 107, and the thickness of the short frame 120 is greater than that of the long frame 110; the photovoltaic frame 100 further includes a second corner fitting 140 (as Figure 25 and Figure 26 shown). Both ends of the second corner fitting 140 are respectively inserted into the connection cavities 107 of the long frame 110 and the short frame 120 to connect the long frame 110 and the short frame 120.

[0064] Specifically, one end of the second corner fitting 140 is inserted into the connection cavity 107 of the long frame 110 from the end of the long frame 110, and the other end of the second corner fitting 140 is inserted into the connection cavity 107 of the short frame 120 from the end of the short frame 120 (as Figure 20 shown), so that the long frame 110 and the short frame 120 are spliced under the connection of the second corner fitting 140. It can be understood that since the short frame 120 has no third wall 103, its bearing capacity is weaker than that of the first frame 111. Therefore, by setting the thickness of the short frame 120 to be greater than that of the long frame 110, the bearing capacity of the short frame 120 can be increased, and the structural strength of the short frame 120 can be improved.

[0065] Optionally, the thickness difference between the short frame 120 and the long frame 110 is A, and 0 mm < A ≤ 1 mm. By setting the thickness difference A between the short frame 120 and the long frame 110 within this numerical range, the purpose of increasing the bearing capacity of the short frame 120 can be achieved, and the material cost of the short frame 120 will not be increased too much. Exemplarily, the thickness difference A between the short frame 120 and the long frame 110 can be 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1 mm, or the range between any two numerical values, etc.

[0066] In some embodiments of the present application, mounting holes 109 are provided on the first frame 111, and a locking structure is provided on the photovoltaic cell 200. The mounting holes 109 cooperate with the locking structure to connect the photovoltaic cell 200 to the first frame 111. By the mutual cooperation of the mounting holes 109 and the locking structure, the connection strength between the first frame 111 and the photovoltaic cell 200 can be increased, and the mounting reliability of the photovoltaic cell 200 on the photovoltaic frame 100 can be improved.

[0067] Optionally, the long frame 110 includes N first frames 111 and M second frames 112, M = N + 1, and the N first frames 111 and M second frames 112 are alternately connected. By setting the number of the second frames 112 to be more than the number of the first frames 111, the part of the long frame 110 without an upper surface can be increased, so that the anti-waterlogging and anti-dust accumulation effect of the photovoltaic module 1 is better. Exemplarily, as Figures 1 - 4 shown, the long frame 110 includes two first frames 111 and three second frames 112, and the two first frames 111 and the three second frames 112 are alternately connected.

[0068] Alternatively, the long frame 110 includes X first frames 111 and Y second frames 112, X = Y + 1, and the X first frames 111 and Y second frames 112 are alternately connected. By setting the number of the first frames 111 to be more than the number of the second frames 112, the bearing capacity of the long frame 110 for the photovoltaic cell 200 can be increased, and the structural strength of the photovoltaic frame 100 can be improved. Exemplarily, as Figures 5 - 8 shown, the long frame 110 includes two first frames 111 and one second frame 112, and the two first frames 111 and the one second frame 112 are alternately connected (i.e., the second frame 112 is connected between the two first frames 111).

[0069] Specifically, the number of the long frames 110 and the short frames 120 of the photovoltaic frame 100, as well as the number of the first frames 111 and the second frames 112 of the long frame 110, can be adjusted according to the size and usage scenario of the photovoltaic module 1, etc., to meet the user's needs.

[0070] In the above embodiments, the descriptions of the respective embodiments have their own focuses. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0071] The above has introduced in detail the photovoltaic frame and the photovoltaic module provided by the embodiments of the present application. Specific examples are used herein to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application; at the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. A photovoltaic frame, characterized in that, The photovoltaic frame (100) includes a long frame (110) and a short frame (120) connected to the long frame (110). The long frame (110) includes a first frame (111) and a second frame (112) connected to the first frame (111). The first frame (111), the second frame (112), and the short frame (120) all include a first wall (101) and a second wall (102). The first frame (111) further includes a third wall (103). The first wall (101), the second wall (102), and the third wall (103) of the first frame (111) define an installation groove (104). The first wall (101) and the second wall (102) of the second frame (112) form a first step (105). The first wall (101) and the second wall (102) of the short frame (120) form a second step (106). The installation groove (104), the first step (105), and the second step (106) are all used for installing a photovoltaic cell (200). Wherein, the first wall (101) is on the side of the back of the photovoltaic cell (200), the second wall (102) is on the side of the side of the photovoltaic cell (200), and the third wall (103) is on the side of the front of the photovoltaic cell (200).

2. The photovoltaic frame according to claim 1, characterized in that, The width of the second frame (112) is less than the width of the first frame (111).

3. The photovoltaic frame according to claim 2, wherein, The first frame (111) and the second frame (112) are both provided with connection cavities (107). The photovoltaic frame (100) further includes a first corner connector (130). The two ends of the first corner connector (130) are respectively inserted into the connection cavities (107) of the first frame (111) and the second frame (112) to connect the first frame (111) and the second frame (112).

4. The photovoltaic frame according to claim 3, characterized in that The first corner connector (130) is in interference fit with the connection cavities (107) of the first frame (111) and the second frame (112). Or, there is a gap between the first corner connector (130) and the surface of the connection cavity (107). The photovoltaic frame (100) further includes a wedge block. The wedge block is inserted into the gap and abuts against the surface of the first corner connector (130) and the connection cavity (107) respectively.

5. The photovoltaic frame according to claim 3, wherein The cross-section of the connection cavity (107) of the first frame (111) is larger than the cross-section of the connection cavity (107) of the second frame (112). A limiting rib (108) is provided in the connection cavity (107) of the first frame (111). The limiting rib (108) divides the connection cavity (107) of the first frame (111) into a first cavity (1071) and a second cavity (1072). The first cavity (1071) is closer to the installation groove (104) than the second cavity (1072). The first corner connector (130) is in interference fit with the first cavity (1071) and the connection cavity (107) of the second frame (112).

6. The photovoltaic frame according to claim 1, characterized in that, The long frame edge (110) and the short frame edge (120) are both provided with connection cavities (107), and the thickness of the short frame edge (120) is greater than that of the long frame edge (110); The photovoltaic frame (100) further includes a second corner fitting (140). Two ends of the second corner fitting (140) are respectively inserted into the connection cavity (107) of the long frame edge (110) and the connection cavity (107) of the short frame edge (120) to connect the long frame edge (110) and the short frame edge (120).

7. The photovoltaic frame according to claim 6, wherein The difference in thickness between the short frame edge (120) and the long frame edge (110) is A, where 0 mm < A ≤ 1 mm.

8. The photovoltaic frame according to claim 1, characterized in that, The first frame edge (111) is provided with mounting holes (109), and the photovoltaic cell (200) is provided with a locking structure. The mounting holes (109) cooperate with the locking structure to connect the photovoltaic cell (200) and the first frame edge (111).

9. The photovoltaic frame according to any one of claims 1 to 8, characterized in that, The long frame edge (110) includes N first frame edges (111) and M second frame edges (112), where M = N + 1, and the N first frame edges (111) and the M second frame edges (112) are alternately connected; Alternatively, the long frame edge (110) includes X first frame edges (111) and Y second frame edges (112), where X = Y + 1, and the X first frame edges (111) and the Y second frame edges (112) are alternately connected.

10. A photovoltaic module (1), characterized in that, The photovoltaic module (1) includes a photovoltaic cell (200) and the photovoltaic frame (100) according to any one of claims 1 to 9, and the photovoltaic cell (200) is installed in the photovoltaic frame (100).

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