Lap joint structure and photovoltaic panel

By designing specific edges and grooves on the main body of the lap plate to form a capillary cavity, and combining seals and water guides, the water leakage problem caused by capillary phenomena in traditional lap design is solved, achieving a higher waterproof effect.

CN222183880UActive Publication Date: 2024-12-17ZHUHAI FUSHAN AIKO SOLAR ENERGY TECH CO LTD +4
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Patent Information

Application Number
CN202420834866.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-19
Publication Date
2024-12-17
Estimated Expiration
2034-04-19

AI Technical Summary

Technical Problem

Traditional overlap waveform designs are prone to water leakage risk caused by capillary phenomena at the overlap between photovoltaic and compressed steel plates.

Method used

A lap structure is designed in which the first and second sides of the lap plate body extend through bending to form a specific edge to form a groove and a capillary cavity, combining the seal and the water guide to ensure that the water is in capillary The capillary suction is stopped in the cavity and discharged through the external drainage system, and the seepage discharge is guided through the water guide tank during installation.

Benefits of technology

It effectively reduces the risk of water leakage at overlapping points, improves waterproofing effect, and ensures the stability and reliability of photovoltaic modules.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model is suitable for the technical field of solar cells, and provides a lap joint structure and a photovoltaic panel, and the lap joint structure comprises a lap joint plate main body. The lapping plate main body is provided with a first side edge and a second side edge which are opposite; the first side edge is sequentially bent and extends to form a first male rib side edge and a first male rib top edge, and the second side edge is sequentially bent and extends to form a first female rib side edge, a first female rib top edge and a second female rib side edge; a first groove is formed in the joint of the first male rib side edge and the first male rib top edge; the first female rib top edge is used for being matched with the first male rib top edge so that the second female rib side edge can be attached to the first male rib side edge, the capillary cavity is defined by the first female rib top edge, the second female rib side edge and the first groove, and even if water enters the attached position of the second female rib side edge and the first male rib side edge due to the capillary phenomenon, the capillary cavity can not be blocked. The capillary suction force of the water can be stopped at the capillary cavity, and then the water is connected with an external drainage system through the capillary cavity to be drained, so that the risk of water leakage can be effectively reduced.
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Description

Technical Field

[0001] The utility model belongs to the technical field of solar cells, and in particular relates to an overlap structure and a photovoltaic panel. Background Art

[0002] Photovoltaic and corrugated steel sheet integration technology is an efficient and environmentally friendly building photovoltaic integration technology that organically combines photovoltaic modules with corrugated steel sheets. The existing overlapped photovoltaic building integrated steel sheets adopt the traditional overlapped waveform design, with W-shaped joints and V-shaped joints on the left and right sides of the steel sheet respectively. During installation, the W-shaped joint of one steel sheet and the V-shaped joint of another steel sheet are overlapped to achieve the connection of the two steel sheets.

[0003] However, the traditional overlapping corrugated design relies solely on the waterproofing of the overlapping parts of the two steel plates. Water can easily enter the overlapping parts due to capillary phenomena, posing a risk of leakage. Utility Model Content

[0004] The embodiment of the utility model provides an overlapping structure, aiming to solve the problem of water leakage risk in the existing overlapping wave-shaped design.

[0005] The embodiment of the utility model is implemented as follows: a lap joint structure includes a lap joint plate body;

[0006] The lap plate body has a first side edge and a second side edge opposite to each other;

[0007] The first side edge is bent and extended in sequence to form a first male rib side edge and a first male rib top edge, and the second side edge is bent and extended in sequence to form a first female rib side edge, a first female rib top edge, and a second female rib side edge;

[0008] A first groove is provided at the connection between the side edge of the first male rib and the top edge of the first male rib;

[0009] The top edge of the first female rib is used to cooperate with the top edge of the first male rib, so that the side edge of the second female rib fits with the side edge of the first male rib, and the capillary cavity is surrounded by the top edge of the first female rib, the side edge of the second female rib and the first groove.

[0010] Furthermore, a first sealing member is provided between the first male rib side edge and the second female rib side edge.

[0011] Furthermore, the first male rib side edge, the first male rib top edge, the first female rib side edge and the first female rib top edge together form a cable space for routing photovoltaic cables.

[0012] Furthermore, the top edge of the first male rib is used to cooperate with a fixing bracket so as to be fixedly installed on the target component through the fixing bracket, and the fixing bracket has a cable space.

[0013] Furthermore, the fixing bracket is provided with a second groove matching with the first groove.

[0014] Furthermore, the top edge of the first female rib, the top edge of the first male rib and the fixing bracket are fixedly connected by bolts.

[0015] Furthermore, the top edge of the first male rib extends to form a water guide groove, and the water guide groove and the top edge of the first female rib together form a water guide channel.

[0016] Furthermore, the water guide groove extends to form a third male rib side edge, the third male rib side edge is used to fit with the first female rib side edge, and a second sealing member is provided between the third male rib side edge and the first female rib side edge.

[0017] Furthermore, a third groove is provided on the top edge of the first female rib, and the third groove is used to limit the top edge of the first male rib so that the side edge of the first male rib fits with the side edge of the second female rib.

[0018] In a second aspect, the present application further provides a photovoltaic panel, comprising:

[0019] Photovoltaic panels; and

[0020] The overlapping structure connected to the photovoltaic module is as described above.

[0021] The beneficial effect of the present application lies in that the present application arranges a first male rib side edge and a first male rib top edge on the first side edge of the lap plate body, and arranges a first female rib side edge, a first female rib top edge and a second female rib side edge on the second side edge of the lap plate body, wherein a first groove is arranged at the connection between the first male rib side edge and the first male rib top edge. When two adjacent lap plate bodies are overlapped, the first female rib top edge of one lap plate body overlaps and cooperates with the first male rib top edge of the other lap plate body, and the second female rib side edge fits with the first male rib side edge, so that the first female rib top edge, the second female rib side edge and the first groove can be combined to form a capillary cavity. Even if water enters the fitting place of the second female rib side edge and the first male rib side edge due to capillary phenomenon, the water will stop capillary suction at the capillary cavity, and then be discharged through the capillary cavity connected to the external drainage system, which can effectively reduce the risk of water leakage. In addition, the present application can also continue to extend the top edge of the first public rib to form a water guide groove, and the water guide groove and the top edge of the first female rib together form a water guide channel. When water seepage occurs due to the use of bolts to penetrate the top edge of the first female rib and the top edge of the first public rib for installation, the seeped water will flow into the water guide groove and be discharged by the water guide groove, further improving the waterproof effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of an embodiment of a photovoltaic panel provided by the present application;

[0023] Figure 2 It is a structural schematic diagram of a male rib of an embodiment of a lap joint structure provided by the present application;

[0024] Figure 3 This is a schematic structural diagram of a mother rib of an embodiment of a lap joint structure provided by the present application;

[0025] Figure 4 It is a structural schematic diagram of the overlap of male ribs and female ribs in one embodiment of the overlap structure provided by the present application. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. Examples of embodiments are shown in the accompanying drawings, in which the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model. In addition, it should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.

[0027] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "left", "right", "horizontal", "top", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0029] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0031] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the utility model. In addition, the utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and / or settings discussed in itself. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0032] The present application provides a first male rib side edge and a first male rib top edge on the first side edge of the lap plate body, and provides a first female rib side edge, a first female rib top edge and a second female rib side edge on the second side edge of the lap plate body, wherein a first groove is provided at the connection between the first male rib side edge and the first male rib top edge, and when two adjacent lap plate bodies are overlapped, the first female rib top edge of one lap plate body overlaps and cooperates with the first male rib top edge of the other lap plate body, and the second female rib side edge fits with the first male rib side edge, so that the first female rib top edge, the second female rib side edge and the first groove can be enclosed to form Capillary cavity, even if water enters the joint between the side of the second female rib and the side of the first male rib due to capillary phenomenon, the water will stop capillary suction at the capillary cavity, and then be discharged through the capillary cavity connected to the external drainage system, which can effectively reduce the risk of water leakage. In addition, the present application can continue to extend at the top edge of the first public rib to form a water guide groove, and the water guide groove and the top edge of the first female rib together form a water guide channel. When water seepage occurs due to the use of bolts to penetrate the top edge of the first female rib and the top edge of the first male rib for installation, the seeped water will flow into the water guide groove and be discharged by the water guide groove, further improving the waterproof effect.

[0033] Embodiment 1

[0034] like Figures 1 to 4 As shown, one embodiment of the present application provides a lap joint structure, including a lap joint plate body 100;

[0035] The lap plate body 100 has a first side edge 110 and a second side edge 120 opposite to each other;

[0036] The first side edge 110 is bent and extended in sequence to form a first male rib side edge 111 and a first male rib top edge 112, and the second side edge 120 is bent and extended in sequence to form a first female rib side edge 121, a first female rib top edge 122, and a second female rib side edge 123;

[0037] A first groove 101 is provided at the connection between the first male rib side edge 111 and the first male rib top edge 112;

[0038] The first female rib top edge 122 is used to cooperate with the first male rib top edge 112 so that the second female rib side edge 123 fits with the first male rib side edge 111 , and the first female rib top edge 122 , the second female rib side edge 123 and the first groove 101 together form a capillary cavity 200 .

[0039] During implementation, the overlap structure provided by the present application can be applied to photovoltaic integrated corrugated steel plates or other equipment or devices that require overlap and waterproofing. For example, the overlap structure provided by the present application can also be applied to color steel tiles to achieve overlap and waterproofing functions, or used to build panels for metal enclosure systems such as roofs, walls, and awnings, without limitation.

[0040] The present application takes the corrugated steel sheet as an example, wherein the lap plate body 100 is the corrugated steel sheet body, the first side edge 110 and the second side edge 120 are the two opposite sides of the corrugated steel sheet respectively. For example, when the corrugated steel sheet is installed on the roof, since the roof is inclined, the first side edge 110 and the second side edge 120 of the corrugated steel sheet can be regarded as the top and the bottom of the corrugated steel sheet.

[0041] The first side edge 110 extends to form a first male rib side edge 111, and then the first male rib top edge 112 is extended from the first male rib side edge 111. During implementation, the first male rib side edge 111 forms a certain angle with the lap plate body 100, and the first male rib top edge 112 forms a certain angle with the first male rib side edge 111, so that the first male rib top edge 112 is parallel or substantially parallel to the lap plate body 100.

[0042] Similarly, the second side edge 120 extends to form a first female rib side edge 121, which is further extended from the first female rib side edge 121 to form a first female rib top edge 122, and then further extended from the first female rib top edge 122 to form a second female rib side edge 123, wherein the first female rib side edge 121 forms a certain angle with the lap plate body 100, the first female rib top edge 122 forms a certain angle with the first female rib side edge 121, the first female rib top edge 122 is parallel or substantially parallel to the lap plate body 100, and the first female rib side edge 121, the first female rib top edge 122 and the second female rib side edge 123 are overall in the shape of an inverted groove. In other words, the longitudinal sections of the first female rib side edge 121, the first female rib top edge 122 and the second female rib side edge 123 are trapezoidal in shape without a bottom edge, so that they can be buckled on the first male rib side edge 111 and the first male rib top edge 112.

[0043] In some embodiments, the first male rib side 111 and the first male rib top 112 can be regarded as male rib crests provided on the first side 110, and the first female rib side 121, the first female rib top 122 and the second female rib side 123 can be regarded as female rib crests provided on the second side 120. When two adjacent lap plate bodies 100 are overlapped and connected, the female rib crest of one lap plate body 100 is buckled on the male rib crest of the other lap plate body, at this time, the first female rib top 122 will overlap the first male rib top 112, and the second female rib side 123 will fit with the first male rib side 111, so that the first female rib top 122, the second female rib side 123 and the first groove 101 are surrounded to form a capillary cavity 200. When water enters between the second female rib side 123 and the first male rib side 111 due to the capillary phenomenon, the water stops the capillary suction at the capillary cavity 200 when flowing toward the first female rib top edge 122 and the first male rib top edge 112, that is, the water gathers at the capillary cavity 200. In some embodiments, the capillary cavity 200 is used to connect to an external drainage system, so that the water at the capillary cavity 200 is discharged through the external drainage system.

[0044] In some optional embodiments, a first sealing member 810 is disposed between the first male rib side edge 111 and the second female rib side edge 123. Optionally, the first sealing member 810 may be a sealing strip or a sealing tape or other sealing member having a sealing function, without limitation.

[0045] In implementation, the first seal 810 is provided between the first male rib side 111 and the second female rib side 123 as a first waterproof measure, which can effectively improve the waterproof effect. In addition, when the first seal 810 partially or completely fails after a long period of use, when water enters between the first male rib side 111 and the second female rib side 123 due to capillary action, the capillary cavity 200 is provided as a second waterproof measure, which can effectively reduce the risk of water leakage.

[0046] The present application provides a first male rib side edge 111 and a first male rib top edge 112 on the first side edge 110 of the lap plate body 100, and provides a first female rib side edge 121, a first female rib top edge 122 and a second female rib side edge 123 on the second side edge 120 of the lap plate body 100, wherein a first groove 101 is provided at the connection between the first male rib side edge 111 and the first male rib top edge 112, and when two adjacent lap plate bodies 100 are overlapped, the first female rib top edge 122 of one lap plate body 100 is connected to the other lap plate body 100. The first male rib top edge 112 of the connecting plate body 100 overlaps and fits, and the second female rib side edge 123 fits with the first male rib side edge 111, so that the first female rib top edge 122, the second female rib side edge 123 and the first groove 101 can be combined to form a capillary cavity 200. Even if water enters the place where the second female rib side edge 123 fits with the first male rib side edge 111 due to capillary phenomenon, the water will stop the capillary suction at the capillary cavity 200, and then be discharged through the capillary cavity 200 connected to the external drainage system, which can effectively reduce the risk of water leakage.

[0047] In some optional embodiments, the first male rib side edge 111 , the first male rib top edge 112 , the first female rib side edge 121 , and the first female rib top edge 122 together form a cable space 700 for routing photovoltaic cables.

[0048] During implementation, the first male rib side 111 and the first male rib top 112 can be regarded as bent edges that are higher than the lap plate body 100. Similarly, the first female rib side 121, the first female rib top 122 and the second female rib side 123 can also be regarded as bent edges that are higher than the lap plate body 100. When the first female rib top 122 is overlapped on the first male rib top 112, the first male rib side 111, the first male rib top 112, the first female rib side 121 and the first female rib top 122 are overall inverted groove-shaped, that is, the longitudinal sections of the first male rib side 111, the first male rib top 112, the first female rib side 121 and the first female rib top 122 are trapezoidal or basically trapezoidal, and the internal space of the inverted groove is the cable space 700, which is used for routing photovoltaic cables.

[0049] In some possible embodiments, the height of the cable space 700 may be the vertical height between the top edge 112 of the first male rib and the lap plate body 100, or the height of the cable space 700 may be the vertical height between the top edge 122 of the first female rib and the lap plate body 100, wherein the height of the cable space 700 may be set according to the diameter of the cable or the space required for the cable routing and the terminal block, without limitation.

[0050] In some optional embodiments, the first male rib top edge 112 is used to cooperate with the fixing bracket 300 so as to be fixedly installed on the target component through the fixing bracket 300 , and the fixing bracket 300 has a cable space 700 .

[0051] During implementation, the fixing bracket 300 is used to support the top edge 112 of the first male rib. Taking the photovoltaic integrated corrugated steel sheet as an example, the photovoltaic integrated corrugated steel sheet is installed on the roof purlin 400 through the fixing bracket 300. Exemplarily, the longitudinal section of the fixing bracket 300 is in an inverted V shape or an inverted U shape, and the two sides of the opening of the V shape or the inverted U shape extend to form mounting feet, and the mounting feet can be fixed to the purlin 400 by bolts 500 or self-tapping screws, so that the fixing bracket 300 is buckled on the purlin 400. Then buckle the male rib crest onto the fixed bracket 300. At this time, the first male rib side 111 is tightly attached to one side of the fixed bracket 300, and the first male rib top 112 is tightly attached to the top edge of the fixed bracket 300. Then buckle the female rib crest onto the male rib crest. At this time, the second female rib side 123 is tightly attached to the first male rib side 111, and the first female rib top 122 is tightly attached to the first male rib top 112. The first female rib side 121 can be tightly attached to the other side of the fixed bracket 300. Of course, there can also be a certain distance between the first female rib side 121 and the other side of the fixed bracket 300, so that the male rib crest and the female rib crest can be overlapped on the fixed bracket 300.

[0052] Since the longitudinal section of the fixing bracket 300 is in an inverted V-shape or an inverted U-shape, there is a certain space between the fixing bracket 300 and the purlin 400, and the space can be used for cable routing, that is, the space between the fixing bracket 300 and the purlin 400 can be regarded as a cable space 700. Similarly, the first male rib side edge 111, the first male rib top edge 112, the first female rib top edge 122 and the first male rib side edge 111 are in an inverted bowl shape, that is, a cable space 700 can also be formed between the first male rib side edge 111, the first male rib top edge 112, the first female rib top edge 122, the first male rib side edge 111 and the fixing bracket 300, or a cable space 700 can also be formed between the first female rib top edge 122, the first male rib side edge 111 and the fixing bracket 300, to facilitate cable routing.

[0053] In some possible embodiments, the distance between the lap plate body 100 and the purlin 400 can be increased by fixing the bracket 300, so that a cavity is formed between the lap plate body 100 and the purlin 400. Of course, if a waterproof layer and / or a thermal insulation layer is also provided on the purlin 400, it can also be regarded as a cavity formed between the lap plate body 100 and the waterproof layer and / or the thermal insulation layer. The cavity can be used for ventilation. For example, when the photovoltaic integrated corrugated steel sheet is installed on the roof, ventilation openings (not shown in the figure) are provided at the ridge and eaves. The ventilation openings are connected to the cavity, and ventilation is performed by using the chimney effect, which can effectively reduce the temperature of the photovoltaic module 600, thereby improving the power generation efficiency of the photovoltaic module 600.

[0054] In some embodiments, a second groove 310 can be set on the fixed bracket 300, and the second groove 310 cooperates with the first groove 101 to increase the contact area between the fixed bracket 300 and the male rib peak (the first male rib side edge 111 and the first male rib top edge 112), so that the fixed bracket 300 fits better with the male rib peak and the installation is more stable and reliable.

[0055] In some optional embodiments, the first female rib top edge 122, the first male rib top edge 112 and the fixed bracket 300 are fixedly connected by bolts 500. The first female rib top edge 122, the first male rib top edge 112 and the fixed bracket 300 are all provided with mounting holes (not shown in the figure), and the mounting holes can be through holes, and one end of the bolt 500 passes through the mounting holes and cooperates with the nut to install and connect the first female rib top edge 122, the first male rib top edge 112 and the fixed bracket 300 together. In some possible embodiments, the mounting holes can also be internal threaded holes, and the bolts 500 are threadedly engaged with the internal threaded holes to install and connect the first female rib top edge 122, the first male rib top edge 112 and the fixed bracket 300 together, and the installation is stable and reliable.

[0056] In some optional embodiments, the first male rib top edge 112 extends to form a water guide groove 113 , and the water guide groove 113 and the first female rib top edge 122 together form a water guide channel 115 .

[0057] During implementation, the first male rib top edge 112 extends to form a V-shaped or U-shaped water guide groove 113, and the water guide groove 113 and the first female rib top edge 122 form a water guide channel 115. During use, since the first female rib top edge 122, the first male rib top edge 112 and the fixing bracket 300 are fixedly connected by bolts 500, water may seep through the holes punched by the bolts 500, that is, water may fill the installation hole and extend into the first female rib top edge 122, and then flow into the water guide groove 113, and be discharged from the water guide groove 113. For example, the water guide groove 113 is connected to an external drainage system to discharge the seepage water to the external drainage system, and then be discharged by the external drainage system, thereby further improving the waterproof effect.

[0058] In some optional embodiments, the first female rib top edge 122 is provided with a third groove 124, and the third groove 124 is used to limit the first male rib top edge 112 so that the first male rib side edge 111 and the second female rib side edge 123 are in contact with each other.

[0059] When the female rib crest is buckled on the male rib crest, the first male rib top edge 112 fits with the first female rib top edge 122, and due to the limiting effect of the third groove 124 on the first male rib top edge 112, the first male rib side edge 111 and the second female rib side edge 123 fit tightly, and the first female rib top edge 122, the first male rib top edge 112 and the mounting hole of the mounting bracket can be directly aligned to cooperate with the bolt 500, and the installation is convenient and quick.

[0060] In some optional embodiments, the water guide groove 113 extends to form a third male rib side 114, and the third male rib side 114 is used to fit with the first female rib side 121. A second sealing member 820 is provided between the third male rib side 114 and the first female rib side 121.

[0061] During implementation, the first male rib side 111 and the third male rib side 114 are the outermost sides of the male rib wave crest. Similarly, the first female rib side 121 and the second female rib side 123 are the outermost sides of the female rib wave crest. When the female rib wave crest is buckled on the male rib wave crest, the first male rib side 111 and the first female rib side 121 are tightly fitted, and at the same time, the third male rib side 114 and the second female rib side 123 are tightly fitted. By providing a second sealing member 820 between the third male rib side 114 and the first female rib side 121, the waterproof effect can be further improved.

[0062] In some possible embodiments, the number and width of the first sealing member 810 and the second sealing member 820 can be specifically set as needed without limitation.

[0063] Embodiment 2

[0064] In some optional embodiments, the present application further provides a photovoltaic panel, comprising:

[0065] Photovoltaic module 600; and

[0066] The overlapping structure connected to the photovoltaic assembly 600 is as described above.

[0067] Those skilled in the art can clearly understand that, for the convenience and simplicity of description, the structure and implementation principle of the photovoltaic panel described above can refer to the corresponding structure and implementation principle in the aforementioned embodiment 1, and will not be repeated here.

[0068] The present application provides a first male rib side edge 111 and a first male rib top edge 112 on the first side edge 110 of the lap plate body 100, and provides a first female rib side edge 121, a first female rib top edge 122 and a second female rib side edge 123 on the second side edge 120 of the lap plate body 100, wherein a first groove 101 is provided at the connection between the first male rib side edge 111 and the first male rib top edge 112, and when two adjacent lap plate bodies 100 are overlapped, the first female rib top edge 122 of one lap plate body 100 is connected to the other lap plate body 100. The first male rib top edge 112 of the connecting plate body 100 overlaps and fits, and the second female rib side edge 123 fits with the first male rib side edge 111, so that the first female rib top edge 122, the second female rib side edge 123 and the first groove 101 can be combined to form a capillary cavity 200. Even if water enters the place where the second female rib side edge 123 fits with the first male rib side edge 111 due to capillary phenomenon, the water will stop the capillary suction at the capillary cavity 200, and then be discharged through the capillary cavity 200 connected to the external drainage system, which can effectively reduce the risk of water leakage. In addition, the present application can also continue to extend the top edge 112 of the first public rib to form a water guide groove 113, and the water guide groove 113 and the top edge 122 of the first female rib together form a water guide channel 115. When water seepage occurs due to the use of bolts 500 to penetrate the top edge 122 of the first female rib and the top edge 112 of the first public rib for installation, the seeped water will flow into the water guide groove 113 and be discharged by the water guide groove 113, thereby further improving the waterproof effect.

[0069] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lap joint structure, characterized in that: including a lap plate body; The lap plate body has a first side edge and a second side edge opposite to each other; The first side edge is bent and extended in sequence to form a first male rib side edge and a first male rib top edge, and the second side edge is bent and extended in sequence to form a first female rib side edge, a first female rib top edge, and a second female rib side edge; A first groove is provided at the connection between the side edge of the first male rib and the top edge of the first male rib; The top edge of the first female rib is used to cooperate with the top edge of the first male rib, so that the side edge of the second female rib fits with the side edge of the first male rib, and a capillary cavity is formed by the top edge of the first female rib, the side edge of the second female rib and the first groove.

2. The overlapping structure according to claim 1, characterized in that: A first sealing member is disposed between the first male rib side edge and the second female rib side edge.

3. The overlapping structure according to claim 1, characterized in that: The first male rib side edge, the first male rib top edge, the first female rib side edge and the first female rib top edge together form a cable space for routing photovoltaic cables.

4. The overlapping structure according to claim 3, characterized in that: The top edge of the first male rib is used to cooperate with a fixing bracket so as to be fixedly installed on the target component through the fixing bracket, and the fixing bracket has the cable space.

5. The overlapping structure according to claim 4, characterized in that: The fixing bracket is provided with a second groove matching with the first groove.

6. The overlapping structure according to claim 4, characterized in that: The top edge of the first female rib, the top edge of the first male rib and the fixing bracket are fixedly connected by bolts.

7. The overlapping structure according to claim 6, characterized in that: The top edge of the first male rib extends to form a water guide groove, and the water guide groove and the top edge of the first female rib together form a water guide channel.

8. The overlapping structure according to claim 7, characterized in that: The water guide groove extends to form a third male rib side edge, and the third male rib side edge is used to fit with the first female rib side edge. A second sealing member is provided between the third male rib side edge and the first female rib side edge.

9. The overlapping structure according to any one of claims 1 to 8, characterized in that: The top edge of the first female rib is provided with a third groove, and the third groove is used to limit the top edge of the first male rib so that the side edge of the first male rib and the side edge of the second female rib are fitted together.

10. A photovoltaic panel, characterized in that: include: Photovoltaic panels; as well as A lap joint structure as claimed in any one of claims 1 to 9 connected to the photovoltaic module.