High power photovoltaic module with waterproof seal

Abstract

The application discloses a high-power photovoltaic module with a waterproof sealing structure, and relates to the technical field of photovoltaic equipment.The photovoltaic module comprises a photovoltaic panel with a frame; and a sealing structure arranged on the frame and used for sealing the gap between the photovoltaic panel and the frame.The high-power photovoltaic module with the waterproof sealing structure has the advantages that the sealing material is a medium which is in a solid state at room temperature and in a liquid state at high temperature, the molten sealing material can be filled in the gap between the photovoltaic module and the frame, and the solid sealing is formed after the sealing material is solidified, so that the technical problems that the sealing damage cannot be repaired autonomously and the sealing structure is greatly affected by the environment in the prior art are solved, the stable sealing of the photovoltaic module and the plasticity of the sealing structure are realized, the damage to the sealing structure caused by the outdoor environment can be timely and effectively controlled, and the stability of the photovoltaic module sealing is improved.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic equipment technology, and in particular to a high-power photovoltaic module with a waterproof and sealed structure. Background Technology

[0002] Because photovoltaic modules are used outdoors for extended periods, they must possess excellent sealing and weather resistance to cope with various harsh weather conditions. Conventional photovoltaic modules are equipped with metal frames, which are installed around the edges of the photovoltaic panels to protect and support them. The frames are also one of the essential accessories for installing photovoltaic module systems. Existing frames usually have slots to hold the edges of the photovoltaic panels in place. To improve sealing, sealant needs to be applied to the slots during installation.

[0003] Currently, a Chinese patent application with patent number "CN201811558155.1" discloses a photovoltaic module, including a solar panel and a frame mounted on the edge of the solar panel. The frame has a clamping part for clamping the edge of the solar panel, and the clamping part contains sealant. The top surface of a cover plate has a groove along the edge of the cover plate, and the groove is located within the clamping part to accommodate the sealant within the clamping part. This application prevents excessive overflow of sealant from the frame by providing grooves on the perimeter of the cover plate to accommodate some of the sealant. However, it overlooks a crucial issue: the aging and damage of the sealing structure itself. Secondly, another existing patent application with patent number "CN202410301471.X"... A Chinese patent discloses a high-sealing BIPV photovoltaic module, specifically relating to the field of photovoltaic module technology. It mainly includes a solar photovoltaic panel, with an extrusion strip frame mounted on top of the panel. An extrusion frame plate is located at the top of the extrusion strip frame, and an extrusion sealing mechanism is located at the top of the extrusion frame plate. The extrusion sealing mechanism includes a rainwater bearing box located at the top of the extrusion frame plate. Using this extrusion sealing mechanism, the extrusion strip frame can provide extrusion sealing force to the adhesive gap between the solar photovoltaic panel and the sealing strip. However, some photovoltaic panels rely entirely on sealing strips or sealant for sealing. Regardless of the type, both are subject to varying degrees of damage under outdoor environmental conditions, leading to a continuous deterioration in sealing performance and severely affecting the stability of the seal.

[0004] However, during the implementation of the above technical solution, at least the following technical problems were discovered:

[0005] The inability to self-repair damaged seals and the significant environmental impact of the sealing structure: Existing photovoltaic (PV) module sealing structures primarily rely on sealing strips or adhesives to fill the gaps between the PV panel and the frame. However, since PV modules are installed outdoors, they are frequently exposed to sunlight, rain, wind, and oxidation. This causes the sealing structure to deform, fail, or wear over time, resulting in changes to the sealing structure and ultimately rendering it ineffective. Current solutions involve periodic quality inspections, but due to the limitations of the PV module's operating environment, installed PV modules cannot be moved, requiring on-site inspections. Inspection relies primarily on manual observation and judgment, which is inherently unstable. Furthermore, for very small gaps, observation and basic inspection alone are insufficient to detect them, leading to oversights and poor accuracy. Consequently, the inspection results do not adequately reflect the sealing effect of the photovoltaic module. Moreover, repairing the sealing structure is cumbersome, requiring the removal of damaged or deformed adhesive strips or sealant, the installation or filling of a new sealing structure, and then another sealing test. If the test fails, readjustment is necessary until the sealing standard is met. Therefore, we propose a high-power photovoltaic module with a waterproof sealing structure. Summary of the Invention

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this invention provides a high-power photovoltaic module with a waterproof sealing structure, solving the technical problems that existing photovoltaic module sealing structures cannot autonomously repair damaged areas during use and are greatly affected by the environment.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, the present invention provides the following technical solution:

[0010] A high-power photovoltaic module with a waterproof sealing structure, the photovoltaic module comprising:

[0011] Photovoltaic panels with frames;

[0012] A sealing structure, installed on the frame, is used to seal the gap between the photovoltaic panel and the frame;

[0013] The sealing structure includes an edge seal disposed in the gap between the photovoltaic panel and the frame, and is laid along the extension direction of the gap between the photovoltaic panel and the frame. The cavity formed between the edge seal and the photovoltaic panel and the frame is filled with a medium, which is solid at room temperature. When heated, the medium melts and fills the cavity formed between the edge seal and the photovoltaic panel and the frame.

[0014] Preferably, the frame is slidably connected to a movable component, and the movable component drives the sealing structure to move along the edge of the frame. The movable component includes a bracket located on the outside of the frame, and each end of the bracket is provided with a bearing sidewall. The two bearing sidewalls are located on the front and rear sides of the frame, respectively, and the frame is clamped by the two bearing sidewalls.

[0015] The bracket has a storage box on the side facing the frame, and the opening of the storage box is consistent with the shape of the outer wall of the frame.

[0016] Preferably, the storage box has a cavity on the side facing the frame. When the bracket is fitted with the frame, the cavity of the storage box corresponds to the outer wall of the frame, and the storage box is fitted to the outer wall of the frame by a sealing strip on its edge.

[0017] The storage box contains a heating wire. When the heating wire is energized, the medium filling the cavity melts and covers the outer wall of the frame.

[0018] The storage box is connected to the raw material box on the supporting side wall via a connecting pipe thereon, and the raw material box is used to store the medium.

[0019] Preferably, the bracket is provided with a driver on the side facing the frame, and the bracket is driven by the driver to move along the edge of the frame; the driver includes two drive rods provided on the inner side of the bracket, and the drive rods are driven to rotate by a drive motor on the bearing side wall. Each of the two bearing side walls is provided with a limiting roller on its opposite side. When the bracket is connected to the frame, the drive rods are in contact with the outer wall of the frame, and the limiting rollers are in contact with the inner side of the frame, thereby clamping the frame through the limiting rollers and the drive rods.

[0020] Preferably, two sliding grooves are provided on each of the two opposite sides of the bearing sidewalls, and the two upper and lower corresponding sliding grooves are inserted into the center rod at the end of the drive rod. The center rod is connected to the inner wall of the sliding groove by a traction spring, and the traction spring is always in a compressed state. The drive rod moves toward the limiting roller under the action of the traction spring.

[0021] Preferably, the drive motor and the drive rod are connected by a connector, and the connector includes two synchronous belts, both of which are connected to the same driving gear. One of the synchronous belts is sleeved with the drive gear, and the other synchronous belt is sleeved with the transmission gear.

[0022] The connector further includes two linkage arms, both of which are connected to the same driving gear. The drive gear and the transmission gear are respectively connected to the ends of the two linkage arms away from the driving gear. The drive gear is connected to the output shaft of the drive motor, and the transmission gear is connected to the drive rod.

[0023] The connector is provided in two sets, and the rotating shafts on the two sets of connectors are connected to each other and connected to the output shaft of the drive motor. When the drive rod moves, the two connecting rod arms drive the synchronous belt to unfold and fold under the squeezing action of the drive rod.

[0024] Preferably, a sealing element is provided at the opening of the frame, and the sealing element is disposed in the gap between the frame and the photovoltaic panel; the sealing element includes two mutually nested baffles, and a center strip is provided on one side of the two baffles opposite to each other. The baffles are connected to the edges of the center strip, and an adjusting element is provided between the two baffles to press the baffles toward the outer wall of the photovoltaic panel.

[0025] Among them, an electric heating wire 2 is laid between the two baffles, and when the electric heating wire 2 is energized, the medium in the two baffles is heated;

[0026] Inside the frame and at the top, there is a raw material silo for storing media, and the raw material silo is connected to the space enclosed by the side walls through a pipe.

[0027] Preferably, the adjusting member includes a movable strip disposed between two flanges, and the movable strip is located above the center strip. An adjusting knob is disposed on the movable strip and is connected to the top of the center strip. When the adjusting knob is rotated, the movable strip is driven to move up and down along the adjusting knob.

[0028] Each of the two guard edges has an embedding groove on one side facing each other. When the movable strip moves upward along the inner wall of the guard edge, it can be inserted into the embedding groove of the inner wall of the guard edge.

[0029] The two retaining edges are provided with a covering layer on the side facing the photovoltaic panel, and the covering layer covers the gap between the retaining edge and the center strip.

[0030] (III) Beneficial Effects

[0031] 1. Since a medium such as paraffin, which is solid at room temperature and melts when heated, is used as the sealing material for the photovoltaic module, and the electric heating wire is used to heat it to make it melt, the melted sealing material can be filled in the gap between the photovoltaic module and the frame. After the electric heating wire is powered off, the sealing material solidifies, forming a solid seal, which facilitates the regular repair of the sealing structure of the photovoltaic module as needed, thereby improving the stability of the sealing effect of the photovoltaic module. Secondly, a bracket in the shape of a "匚" is used as the carrier of the sealing structure, and the driving motor on it provides power for the bracket, enabling the device to move along the frame, so as to repair the gap between the frame and the photovoltaic module. Therefore, it effectively solves the technical problems that the existing sealing structure of the photovoltaic module cannot autonomously repair the damaged sealing part and is greatly affected by the environment during use, and further realizes the stable sealing of the photovoltaic module and the plasticity of the sealing structure, so as to timely and effectively control the damage caused by the outdoor environment to the sealing structure, thereby improving the stability of the sealing of the photovoltaic module.

[0032] 2. By arranging a storage box on the side of the bracket facing the frame, and the sealing strip at the edge of the storage box blocks the gap between the storage box and the frame, making the edge shape of the storage box coincide with that of the frame. Therefore, an independent chamber can be formed between the frame and the outer wall of the frame, and the sealing material is filled in this chamber. When the bracket moves along the outer wall of the frame, the sealing material can be evenly smeared on the frame, thus filling the gap on the frame and sealing the frame. In addition, an electric heating wire is arranged in this independent chamber, which can heat the sealing material attached to the frame and in the chamber, making it flow to the position where the sealing structure is damaged, and after cooling, a dense sealing structure is re-formed, thus completing the repair of the sealing structure and facilitating repeated use.

[0033] 3. By arranging a limiting roller and two corresponding driving rods in the opening of the bracket, and the end of the driving rod is connected to the bearing side arm through a traction spring. Therefore, when the bracket grabs the frame, the limiting roller fits with the inner wall of the frame, and the driving rod fits with the outer wall of the frame. Then, two sets of mutually folded synchronous belts are used as the transmission structure between the driving motor and the driving rod, which not only does not affect the sliding of the driving rod along the chute, but also can stably provide torque for the driving rod, so as to facilitate the stable movement of the bracket along the frame and improve the stability of power transmission.

[0034] 4. Two interlocking baffles serve as a shading structure between the frame and the photovoltaic panel. A central strip connecting the two baffles forms a closed chamber in the gap between the photovoltaic panel and the frame. A second heating wire is installed within this chamber to heat the sealing material filling it, melting it and filling the chamber. After solidification, a complete and dense seal is formed, sealing the gap between the photovoltaic panel and the frame and preventing rainwater and other impurities from entering. Furthermore, if the seal is damaged, the location of the damage can be determined by observing the outflow of the sealing material, facilitating timely repair and adjustment. Secondly, by using baffles made of heat-dissipating material as the "walls" of the chamber, and with the second heating wire located in the center, the heating wire only melts the sealing material in the center of the chamber. Therefore, even with slight deformation or damage to the baffles, a stable seal can still be maintained. Attached Figure Description

[0035] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0036] Figure 1 This is a front view of the photovoltaic panel in an embodiment of the present invention;

[0037] Figure 2 This is a back view of the photovoltaic panel in an embodiment of the present invention;

[0038] Figure 3 This is a structural diagram of the moving component in an embodiment of the present invention;

[0039] Figure 4 This is a diagram showing the connection structure between the driver and the drive rod in an embodiment of the present invention;

[0040] Figure 5 This is a schematic diagram of the connection between the driver and the connector in an embodiment of the present invention;

[0041] Figure 6 This is an exploded view of the connector in an embodiment of the present invention;

[0042] Figure 7 This is a diagram showing the connection structure between the storage box and the heating wire in an embodiment of the present invention.

[0043] Figure 8 This is a schematic diagram of the assembly of the moving component in an embodiment of the present invention;

[0044] Figure 9 This is a partial cross-sectional view of the frame in an embodiment of the present invention;

[0045] Figure 10 This is an embodiment of the present invention. Figure 9 Exploded structure diagram;

[0046] Figure 11 This is an assembly structure diagram of the seal in an embodiment of the present invention;

[0047] Figure 12 This is a diagram showing the usage state of the seal in an embodiment of the present invention.

[0048] Legend:

[0049] 1. Photovoltaic panels;

[0050] 2. Framework;

[0051] 3. Moving component; 31. Bracket; 32. Bearing sidewall; 33. Limiting roller; 341. Storage box; 342. Sealing strip; 343. Connecting tube; 35. Heating wire one; 36. Drive rod; 37. Raw material box; 38. Injection tube;

[0052] 41. Terminal block; 42. Connecting rod;

[0053] 51. Drive motor; 52. Connecting component; 521. Linkage arm; 522. Rotating shaft; 523. Drive gear; 524. Linking gear; 525. Synchronous belt; 526. Transmission gear; 53. Center rod; 54. Traction spring;

[0054] 6. Sealing element; 61. Edge retainer; 62. Center strip; 63. Heating wire II; 64. Movable strip; 65. Adjustment knob; 66. Cover layer; 67. Embedded groove;

[0055] 7. Border strip. Detailed Implementation

[0056] Embodiments of the present application provide a high-power photovoltaic module with a waterproof sealing structure, effectively solving the technical problems that the existing sealing structure of photovoltaic modules cannot autonomously repair damaged sealing areas and is greatly affected by the environment during use. When the existing sealing structure of photovoltaic modules is in use, since a medium such as paraffin, which is solid at room temperature and melts when heated, is used as the sealing material for photovoltaic modules, and then an electric heating wire is used to heat it to make it melt and fill the gap between the photovoltaic module and the frame. After the electric heating wire is powered off, the sealing material solidifies to form a solid seal, so as to facilitate the regular repair work of photovoltaic modules as needed, thereby improving the sealing effect and stability of the sealing of photovoltaic modules. Secondly, a bracket in the shape of a "匚" is used as the carrier of the sealing structure, and a driving motor on it provides power for the bracket, enabling the device to move along the frame, so as to evenly repair around the gap between the frame and the photovoltaic module, and then realizing the stable sealing of the photovoltaic module and the plasticity of the sealing structure, so as to facilitate timely effect and adjustment of the sealing structure in response to the influence of the outdoor environment, thereby improving the stability of the sealing of photovoltaic modules.

[0057] Embodiment 1: The technical solution in the embodiments of the present application is to effectively solve the technical problems that the existing sealing structure of photovoltaic modules cannot autonomously repair damaged sealing areas and is greatly affected by the environment during use. The general idea is as follows:

[0058] In view of the problems existing in the prior art, the present invention provides a high-power photovoltaic module with a waterproof sealing structure. The photovoltaic module mainly consists of two parts. One is the outer frame sealing structure, which is used to seal the gaps of the frame 2 used for the photovoltaic panel 1. It stores a sealing material that is solid at room temperature and melts when heated, such as paraffin, and uses a sliding method to drive the outer frame sealing structure to slide along the outer wall of the frame 2, so as to smear the melted sealing material on the outer wall of the frame 2. At the same time, the electric heating wire can also be used to heat the paraffin to repair the worn area of the sealing material, that is, by melting it and re-solidifying it to form a dense "sealing film", thereby blocking the gaps on the frame 2. The other is the inner gap sealing structure, which is used to seal the gap between the photovoltaic panel 1 and the frame 2. The principle is the same as that of the outer frame sealing structure. Two inner and outer sleeved edges 61 are used to block the gap between the photovoltaic panel 1 and the frame 2, and together with the photovoltaic panel 1 and the frame 2, an independent chamber is formed. After melting by the electric heating wire and re-forming into a liquid state, it flows in the chamber to fill the chamber. After it solidifies, a new sealing structure can be formed, thus blocking the gap between the photovoltaic panel 1 and the frame 2. Using this repair method, the gap between the photovoltaic panel 1 and the frame 2 is blocked. The specific structure is as follows:

[0059] The outer frame sealing structure mainly uses a "匚"-shaped bracket 31, which is arranged on the frame 2 and is clamped with the outer wall of the frame 2, that is, the opening of the bracket 31 is clamped with the outer wall of the frame 2, as Figure 1 shown. At the same time, a motor is used for driving to provide power for the movement of the bracket 31; the specific structure is that a bearing side wall 32 is arranged at each end of the bracket 31. The bearing side wall 32 is fan-shaped. During installation, the two bearing side walls 32 are respectively located on the front and back sides of the photovoltaic panel 1, so as to clamp the frame 2; that is, if the outer frame sealing structure is to seal the frame 2, two requirements need to be met. One is the driving structure, which is used to provide the power required for the movement of the bracket 31, so as to drive the bracket 31 to move along the outside of the frame 2; the other is the blocking structure. Since the sealing material is smeared on the frame 2, there is a need for an independent chamber to store and melt the sealing material. And since the outer wall of the frame 2 is part of the independent chamber surrounded, the sealing material can be smeared on the outer wall of the frame 2; the blocking structure is arranged on the bracket 31 and fits with the outer wall of the frame 2, so as to form an independent chamber isolated from the external space on the frame 2. The melted sealing material can be stored inside, and the sealing material is smeared on the frame 2 during the movement of the bracket 31, thereby closing the gap on the frame 2 and completing the sealing of the frame 2.

[0060] The sealing structure primarily aims to provide an independent chamber for the medium, with one side of this chamber formed by the outer wall of the frame 2. This allows it to move along the outer wall of the frame 2 under the drive of the driving structure, evenly applying the medium onto the frame 2 during the movement. It mainly utilizes a U-shaped storage box 341, with the opening of the storage box 341 matching the shape of the outer wall of the frame 2. The space between the storage box 341 and the outer wall of the frame 2 serves as the chamber for storing the medium. To ensure sealing stability and to clean impurities from the frame 2, a sealing strip 342 made of thermally conductive material is connected to the edge of the storage box 341. The use of thermally conductive material ensures rapid cooling and solidification of the sealing material upon contact. Therefore, when the bracket 31 is fitted onto the frame 2, the storage box... The cavity of box 341 corresponds to the outer wall of frame 2, and the storage box 341 is attached to the outer wall of frame 2 by a sealing strip 342 set on its edge. Then, sealing material is filled into the cavity of storage box 341. When the support 31 is driven by the drive structure to move along the outer wall of frame 2, the heating wire 35 located in the cavity of storage box 341 is energized and heated, causing the sealing material inside the cavity to melt into a liquid state, filling the gaps on the surface of frame 2. Once solidified, it forms a dense film, thereby sealing the gaps on the surface of frame 2. To continuously supply sealing material, the connecting pipe 343 on storage box 341 is connected to the material box 37 on the supporting side wall 32. The material box 37 is used to store the medium, and sealing material can be injected into its inner wall through the injection tube 38 on the material box 37, thus supplying sealing material to the material box 37. Figure 7 As shown.

[0061] To facilitate the movement of the device, a limiting roller 33 and a drive rod 36 are provided between the two bearing side walls 32. The limiting roller 33 is located at the end of the fan-shaped structure of the bearing side wall 32, while the drive rod 36 is located between the two bearing side walls 32. When the bracket 31 is connected to the frame 2, the drive rod 36 is in contact with the outer wall of the frame 2, and the limiting roller 33 is in contact with the inner side of the frame 2. The frame 2 is clamped by the limiting roller 33 and the drive rod 36. At this time, it is only necessary to control the motor to drive the limiting roller 33 or the drive rod 36 to rotate. The bracket 31 can be moved by the friction between the frame 2 and the limiting roller 33 or the drive rod 36, thus providing a foundation for the subsequent laying of sealing material.

[0062] However, due to the uneven thickness and curvature of the frame edge at the corner of frame 2, in order to ensure that the limiting roller 33 and the drive rod 36 can stably fit against the edge of frame 2, two sliding grooves are opened on each of the two opposite sides of the bearing sidewalls 32. The sliding grooves extend towards the direction of the limiting roller 33, and the two corresponding upper and lower sliding grooves are inserted into the center rod 53 at the end of the drive rod 36. Figure 3 and Figure 4 As shown, the center rod 53 is connected to the inner wall of the slide groove by a traction spring 54, and the traction spring 54 is always in a compressed state. The drive rod 36 moves toward the limiting roller 33 under the action of the traction spring 54, so that it is always in contact with the outer wall of the frame 2, thereby ensuring the stability of subsequent driving. The reason for using two drive rods 36 is to cooperate with the limiting roller 33 to form a triangular fixing method. Since the drive rod 36 is movable, it can form a corresponding clamping structure according to the shape and width of the frame, so that the clamping stability will not be affected by the shape change at the corner of the frame 2.

[0063] However, a new problem arose: how to ensure that power could be stably transmitted from the drive motor 51 to the drive rod 36 without being affected by the movement of the drive rod 36. To address this, a foldable connector 52 was used to transmit the power generated by the drive motor 51 to the drive rod 36. Essentially, this involved using two interconnected synchronous belts 525 as the power output structure, both mounted on the same connecting gear 524. Thus, when one synchronous belt 525 rotates, power can be transmitted to the other synchronous belt 525 through the connecting gear 524. When the drive motor 51 and the drive rod 36 move closer or further apart, the synchronous belt 525 can move around the connecting gear 524 to counteract the relative movement between the drive motor 51 and the drive rod 36, ensuring the stability of power transmission. To maintain the stability of the movement between the two synchronous belts 525, a connecting arm 521 is connected to each end of the connecting gear 524, and one end of the connecting gear 524 is connected to the connecting arm 521. A drive gear 523 is provided on one of the connecting arms 521, and a drive gear 523 is provided at the end of the other connecting arm 521. A transmission gear 526 is provided, and one synchronous belt 525 is sleeved with the drive gear 523, while the other synchronous belt 525 is sleeved with the transmission gear 526. These are respectively connected to the ends of the two connecting arms 521 furthest from the driving gear 524. The drive gear 523 is connected to the output shaft of the drive motor 51, and the transmission gear 526 is connected to the drive rod 36. Therefore, when the drive motor 51 drives the drive gear 523 to rotate, the power is transmitted through the synchronous belts 525 sleeved on the outside of the drive gear 523. Since both synchronous belts 525 are connected to the same driving gear... The drive gear 523 is connected via a linkage gear 524, thus the power generated by the drive gear 523 is transmitted to the transmission gear 526 through the linkage gear 524. The transmission gear 526 then transmits the power to the drive rod 36, providing power to the drive rod 36. When the drive rod 36 moves, the synchronous belt 525 only needs to rotate around the outer wall of the linkage gear 524 to cancel out the influence of the drive rod 36's movement on the drive equipment. Since there are two sets of drive rods 36, two sets of connectors 52 are used to transmit power to two different drive rods 36, such as... Figure 5 and Figure 6 As shown, the rotating shafts 522 on the two sets of connecting parts 52 are interconnected and connected to the output shaft of the drive motor 51, thus completing the transmission of power from the drive motor 51. Therefore, when the drive rod 36 moves, the two connecting arms 521, under the squeezing action of the drive rod 36, drive the synchronous belt 525 to unfold and fold, which can counteract the influence of the movement of the drive rod 36.

[0064] The inner gap sealing structure, i.e., the sealing element 6, adopts the same method as the outer frame sealing structure, both of which establish an independent chamber on the frame 2. Since the gap at the joint of the outer wall of the frame 2 can be sealed by the aforementioned outer frame sealing structure, the remaining gap between the photovoltaic panel 1 and the frame 2 can be completely blocked. For this purpose, sealing elements 6 are set at corresponding positions on the sides of the photovoltaic panel 1 and the frame 2, using interlocking baffles 61 as two side arms for establishing the independent chamber. One baffle 61 is connected to the edge of the frame 2 to form a whole, while the other baffle 61 is a free end. Then, a center strip 62 is set on the opposite side of the two baffles 61, such as... Figure 11 and Figure 12 As shown, the central strip 62 is connected to the inner and outer two retaining edges 61 respectively. In order to ensure the airtightness of the cavity, a covering layer 66 is covered on the side of the two retaining edges 61 facing the photovoltaic panel 1. The covering layer 66 covers the gap between the retaining edge 61 and the central strip 62. In this way, the melted sealing material will not come into contact with the gap between the retaining edge 61 and the central strip 62, thereby eliminating the direction of leakage. In order to ensure the uniformity of the sealing material filling the cavity formed by the photovoltaic panel 1, the retaining edge 61 and the central strip 62, a corresponding heating wire 63 is also laid along the cavity. By energizing the heating wire 63, the sealing material in the cavity is heated and melted. Under the fluidity of the melted sealing material, it fills the cavity. After solidification, it forms a dense closed structure. At the same time, when the sealing material is damaged or deformed by impact, it can be heated by the heating wire 63 to remelt and solidify the sealing material to form a new sealing structure, thereby repairing the sealing structure.

[0065] To maintain the fit between the retaining edge 61 and the outer wall of the photovoltaic panel 1, an adjusting member is installed between the two retaining edges 61. This adjusting member applies a pushing force to the retaining edge 61 in the direction of the outer wall of the photovoltaic panel 1, ensuring a tight fit and stable seal. A movable strip 64 is laid between the two retaining edges 61. By moving the movable strip 64 upwards, the upper part of the retaining edge 61 is compressed, causing it to flip. The lower part of the retaining edge 61 then moves towards the photovoltaic panel 1, further improving the stability of the seal. To enable the movable strip 64 to move upwards (located above the center strip 62), an adjusting knob 65 is installed on the movable strip 64 near its end. The adjusting knob 65 consists of two parts: a nut and a... The system consists of a screw, the end of which is connected to the top of the center bar 62. The movable bar 64 is threaded to the outer wall of the screw. Therefore, when the adjustment knob 65 is rotated, the movable bar 64 moves up and down along the adjustment knob 65. To ensure stability after movement, an embedding groove 67 is provided on each of the two opposing sides of the flanges 61. When the movable bar 64 moves upward along the inner wall of the flange 61, it can be locked into the embedding groove 67 on the inner wall of the flange 61, thereby locking the movable bar 64 and ensuring the adjusted state of the flanges 61. To continuously provide sealing material to the cavity enclosed by the flanges 61, a material storage chamber for storing sealing material is provided inside the frame 2 at the top. The material storage chamber is connected to the space enclosed by the flanges 61 through a pipe, thereby continuously providing sealing material to the cavity.

[0066] The photovoltaic panel 1 is installed by setting two terminal blocks 41 on the back of the photovoltaic panel 1, and a connecting rod 42 is set on the terminal block 41, which is then installed on the photovoltaic mounting frame.

[0067] In the specific implementation process, the sealing method of the outer frame sealing structure involves, firstly, the installation of the moving component 3. During installation, the opening of the bracket 31 is aligned with the edge of the frame 2, and then it is directly snapped into the outer wall of the frame 2. Figure 1 As shown, at this time, the storage box 341 on the inner side of the bracket 31 is fitted against the outer wall of the frame 2, and the sealing strip 342 on the edge of the storage box 341 is pressed against the frame 2, thereby sealing the gap between the two. Furthermore, the end of the storage box 341 is inserted into the groove of the edge frame strip 7 of the frame 2. Figure 8 As shown in the upper part of the structure, at this time, the limiting roller 33 at the end of the bearing side wall 32 is in contact with the inner wall edge of the frame 2, while the drive rod 36 located between the two bearing side walls 32 is in contact with the outer wall of the frame 2.

[0068] In the second step, the drive bracket 31 moves. Since the output shaft of the drive motor 51 is connected to the rotating shaft 522 in the connector 52 (the rotating shaft 522 is inserted into the drive gear 523), when power is supplied to the drive motor 51, torque is transmitted to the connecting gear 524 through the synchronous belt 525 connected to the drive gear 523. Furthermore, since both synchronous belts 525 are engaged with the same connecting gear 524, and the transmission gear 526 is connected to the end of the drive rod 36, power can be transmitted to the drive rod 36 through the synchronous belts 525. The moving rod 36 rotates, and under the action of friction between the driving rod 36 and the frame 2, it drives the bracket 31 to move along the edge of the frame 2. Because the frame 2 has uneven thickness and a certain curvature at the corners, in order to ensure that the limiting roller 33 and the driving rod 36 can stably fit against the edge of the frame 2, two sliding grooves are opened on each of the two opposite sides of the bearing sidewalls 32. The sliding grooves extend towards the direction of the limiting roller 33, and the two corresponding upper and lower sliding grooves are inserted into the center rod 53 at the end of the driving rod 36. Figure 3 and Figure 4 As shown, the center rod 53 is connected to the inner wall of the slide groove by a traction spring 54, and the traction spring 54 is always in a compressed state. The drive rod 36 moves toward the limiting roller 33 under the action of the traction spring 54, so that it is always in contact with the outer wall of the frame 2, thereby ensuring the stability of subsequent driving. The reason for using two drive rods 36 is to cooperate with the limiting roller 33 to form a triangular fixing method. Since the drive rod 36 is movable, it can form a corresponding clamping structure according to the shape and width of the frame.

[0069] Stable power, such as Figure 5 and Figure 6 As shown, the rotating shafts 522 on the two sets of connecting parts 52 are connected to each other and connected to the output shaft of the drive motor 51, thereby completing the transmission of power from the drive motor 51. Therefore, when the drive rod 36 moves, the two connecting arms 521 drive the synchronous belt 525 to unfold and fold under the squeezing action of the drive rod 36, which can counteract the influence of the movement of the drive rod 36.

[0070] The third step involves heating the sealing material. When the support 31 is moved along the outer wall of the frame 2 by the driving structure, the heating wire 35 located in the cavity of the storage box 341 is energized and heats up, melting the sealing material inside the cavity into a liquid state. This liquid fills the gaps on the surface of the frame 2, and upon solidification, forms a dense film, thus sealing the gaps on the surface of the frame 2. To ensure a continuous supply of sealing material, the connecting pipe 343 on the storage box 341 is connected to the material box 37 on the supporting side wall 32. The material box 37 is used to store the medium, such as... Figure 7 As shown.

[0071] The sealing method of the internal gap sealing structure is as follows: after the frame 2 is connected to the photovoltaic panel 1, the adjustment knob 65 is rotated, causing the movable bar 64 to move up and down along the adjustment knob 65. To ensure stability after movement, an embedding groove 67 is opened on each of the two opposing sides of the baffles 61. When the movable bar 64 moves upward along the inner wall of the baffle 61, it can be engaged into the embedding groove 67 on the inner wall of the baffle 61, thereby locking the movable bar 64 and ensuring the adjusted state of the baffles 61. To continuously provide sealing material to the cavity enclosed by the baffles 61, a sealing material is placed inside the frame 2 at the top. A raw material silo for storing sealing material is provided, and the raw material silo is connected to the space enclosed by the baffle 61 through a pipe, thereby continuously supplying sealing material to the cavity; by energizing the second heating wire 63, the sealing material located in the cavity is heated and melted. Under the action of the fluidity of the melted sealing material, it fills the cavity. After solidification, it can form a dense sealed structure. At the same time, when the sealing material is damaged or deformed by impact, it can be heated by the second heating wire 63 to remelt and solidify the sealing material, forming a new sealing structure, thereby repairing the sealing structure.

[0072] Example 2: Based on Example 1, this application provides a sealing detection system, the overall concept of which is as follows:

[0073] Existing sealing inspection systems have many shortcomings, such as insufficient inspection coverage, making it difficult to achieve blind spot detection; inability to flexibly adjust inspection strategies according to environmental changes, resulting in the inability to detect sealing defects in a timely manner in harsh environments; inefficient transmission and processing of inspection data, and incomplete warning information, which hinders maintenance personnel from carrying out timely repairs; at the same time, they lack the ability to learn and predict sealing defects, making it impossible to provide early warnings of potential sealing failure risks.

[0074] To address the aforementioned issues, a sealing inspection system for high-power photovoltaic modules with waterproof sealing structures is provided. This system can comprehensively and efficiently inspect the sealing structure of photovoltaic modules, promptly detect sealing defects, and provide early warnings of potential risks, thereby ensuring the normal operation of photovoltaic modules.

[0075] A sealing detection system for high-power photovoltaic modules with waterproof sealing structure includes a detection module, a control module, an environmental sensing module, an information transmission module, an alarm module, and a learning module.

[0076] The detection module employs integrated sensors, combining temperature, humidity, and pressure detection functions. Each sensor is no larger than 2mm x 2mm and is connected to the control module via a flexible connection structure. This allows it to conform to the curved surface of the photovoltaic module frame, achieving comprehensive detection without blind spots. For example, when the photovoltaic module frame has curved corners, the flexible connection structure can bend the sensor to fit tightly against the corner, ensuring effective detection of this area prone to sealing defects. Within the detection module, temperature detection elements are located inside the sealed cavity to detect temperature changes, while humidity detection elements are positioned in the gap between the photovoltaic panel and the frame to detect humidity levels at that point.

[0077] The environmental sensing module is connected to the control module and is used to collect information on sunlight, precipitation and wind in the environment where the photovoltaic module is located. This information can reflect the environmental conditions of the photovoltaic module and provide a basis for the control module to adjust the detection strategy. For example, in areas with high temperature and strong sunlight in summer, the environmental sensing module will collect high sunlight intensity information, and the control module will adjust the working state of the detection module accordingly.

[0078] The control module is the core of the entire system. Based on the information collected by the environmental sensing module, it adjusts the sampling frequency and detection accuracy threshold of the detection module. When environmental information exceeds the preset safety range, such as excessive sunlight, excessive rainfall, or excessive wind, the control module will automatically increase the detection frequency to 3-5 times the normal state, while reducing the accuracy threshold by 10%-20%, so as to detect potential sealing defects in a more intensive and sensitive manner. Assuming the detection frequency is once per hour under normal conditions, when the rainfall is too heavy, the detection frequency will increase to once every 12-20 minutes.

[0079] The control module has a built-in temperature field simulation model that can calculate the temperature distribution gradient of the entire sealed chamber based on single-point temperature data collected by the temperature detection element. Since the temperature distribution at the sealing defect will differ from that of the normal area, the location of a small leak can be determined by analyzing the outliers in the temperature distribution gradient, with a positioning error of no more than 5mm. For example, when there is a small leak in a certain part of the chamber, the temperature at that location will be lower than the surrounding area. The temperature distribution gradient calculated by the temperature field simulation model from single-point temperature data will show an obvious low-temperature anomaly area, thus accurately locating the leak.

[0080] Simultaneously, the control module is electrically connected to the heating element and moving mechanism of the photovoltaic module. When a sealing defect is detected, the control module controls the heating element to heat the medium to maintain a stable temperature inside the chamber and reduce the impact of temperature changes on the detection results. Furthermore, the control module can adjust the heating power and duration based on the chamber pressure changes fed back by the pressure detection element, forming a closed-loop pressure compensation mechanism to ensure that the chamber pressure remains within a stable preset range. For example, when the pressure detection element detects that the chamber pressure is lower than the preset value, the control module will increase the power of the heating element and extend the heating time, causing the medium inside the chamber to expand and the pressure to rise to the preset range.

[0081] In addition, the control module can control the moving mechanism to move along the frame, and its built-in 3D frame model can generate an adaptive detection path based on historical detection data. For areas where sealing defects have occurred, the density of detection points is increased to improve the detection coverage to over 99%, further improving the comprehensiveness and accuracy of the detection. For example, if a photovoltaic module has a sealing defect on its right side frame, the moving mechanism will set twice as many detection points in the right side frame area as in other areas during the detection.

[0082] The information transmission module adopts an adaptive transmission rule. When a sealing defect is detected, it automatically switches to a low-latency transmission mode to prioritize sending defect data, ensuring that maintenance personnel can obtain critical information in a timely manner. In non-defect mode, the information transmission module adopts a low-power mode, extending the information transmission interval to 10-20 times that of the normal state to reduce system energy consumption. For example, the information transmission interval is 10 minutes in the normal state, but it is extended to 100-200 minutes in the non-defect state.

[0083] The warning module can generate multi-dimensional warning information based on the severity of the sealing defect, including audible and visual warnings, location markings, and defect trend prediction curves. This information is simultaneously sent to the maintenance guidance system on the operation and maintenance terminal, providing clear and comprehensive maintenance guidance for maintenance personnel and improving maintenance efficiency. For example, when a serious sealing defect is detected, the warning module will emit a rapid beeping sound and flashing red light, while marking the defect location on the 3D model of the photovoltaic module in the maintenance guidance system and displaying a trend curve showing the potential expansion of the defect within the next 24 hours.

[0084] The learning module is connected to the control module and can record environmental information, detection data, maintenance plans, and subsequent effects of each sealing defect. By learning and analyzing this data, a sealing life prediction model is generated, which can provide early warning of potential sealing failure risks, making it easier for maintenance personnel to prepare for maintenance in advance and reduce losses caused by sealing failure. For example, by analyzing the sealing defect data of photovoltaic modules in a certain area over the past 3 years, the learning module finds that the probability of sealing failure of modules in that area after 5 years of use is relatively high, and will issue an early warning when the modules have been used for about 4 years.

[0085] The aforementioned sealing detection system also includes a moisture tracking module and a fluid composition detection module. The moisture tracking module is connected to the humidity detection element and control module, and can record the moisture diffusion rate and path at points of abnormal humidity. Combined with the photovoltaic module tilt angle information, it calculates the leakage level and classifies it into three levels: minor, moderate, and severe, and generates corresponding maintenance priorities so that maintenance personnel can arrange maintenance work according to the priorities. For example, when the moisture diffusion rate is slow and only diffuses in a small area, combined with the 15° tilt angle of the photovoltaic module, the leakage level is calculated to be minor, and the maintenance priority is set to low.

[0086] The fluid composition detection module and the pressure detection element are arranged side by side, which can detect changes in the composition of the medium inside the chamber. When external medium intrusion is detected, the control module is triggered to enter the deep detection mode to perform a more detailed and in-depth inspection of sealing defects, ensuring that no potential problems are missed. For example, when the medium inside the chamber is dry air, but the fluid composition detection module detects moisture, it is determined that external medium has intruded, and the deep detection mode is triggered.

[0087] The flexible connection structure allows for seamless integration with the control module, enabling inspection of the curved surface of the photovoltaic module frame without blind spots and improving the comprehensiveness of the inspection. At the curved corners of the photovoltaic module, the flexible connection structure also ensures effective contact and inspection of the sensing device. The environmental sensing module collects environmental information, and the control module adjusts its inspection strategy based on this information, increasing the inspection frequency and sensitivity in harsh environments to ensure timely detection of sealing defects. For example, in heavy rain, the inspection frequency can be increased to avoid missing the opportunity to detect sealing defects.

[0088] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A high-power photovoltaic module with a waterproof and sealed structure, characterized in that, The photovoltaic module includes: Photovoltaic panel (1) with frame (2); A sealing structure is provided on the frame (2) for sealing the gap between the photovoltaic panel (1) and the frame (2); The sealing structure includes a sealing edge disposed between the photovoltaic panel (1) and the frame (2), and is laid along the extension direction of the gap between the photovoltaic panel (1) and the frame (2). The cavity formed between the sealing edge and the photovoltaic panel (1) and the frame (2) is filled with a medium, which is solid at room temperature. When heated, the medium melts and fills the cavity formed between the sealing edge and the photovoltaic panel (1) and the frame (2). The frame (2) is slidably connected to a moving component (3), and the moving component (3) drives the sealing structure to move along the edge of the frame (2). The moving component (3) includes a bracket (31) located outside the frame (2), and each end of the bracket (31) is provided with a bearing sidewall (32). The two bearing sidewalls (32) are located on the front and rear sides of the frame (2) respectively, and the frame (2) is clamped by the two bearing sidewalls (32). A storage box (341) is provided on the side of the bracket (31) facing the frame (2), and the opening of the storage box (341) is consistent with the shape of the outer wall of the frame (2). The storage box (341) has a cavity on the side facing the frame (2). When the bracket (31) is sleeved with the frame (2), the cavity of the storage box (341) corresponds to the outer wall of the frame (2), and the storage box (341) is attached to the outer wall of the frame (2) by a sealing strip (342) on its edge. A heating wire (35) is provided in the cavity of the storage box (341). When the heating wire (35) is energized, the medium filling the cavity melts and covers the outer wall of the frame (2). The storage box (341) is connected to the raw material box (37) on the bearing side wall (32) through the connecting pipe (343) on it. The raw material box (37) is used to store the medium. A sealing element (6) is provided at the opening of the frame (2), and the sealing element (6) is provided in the gap between the frame (2) and the photovoltaic panel (1); the sealing element (6) includes two mutually sleeved baffles (61), and a center strip (62) is provided on the opposite side of the two baffles (61). The edges of the baffles (61) and the center strip (62) are connected, and an adjusting element is provided between the two baffles (61). The adjusting element is used to press the baffles (61) toward the outer wall of the photovoltaic panel (1); a second heating wire (63) is laid between the two baffles (61). When the second heating wire (63) is energized, the medium in the two baffles (61) is heated. Inside the frame (2) and at the top, there is a raw material silo for storing media, and the raw material silo is connected to the space enclosed by the sidewall (61) through a pipe.

2. A high-power photovoltaic module with a waterproof sealing structure as described in claim 1, characterized in that: The bracket (31) is provided with a driver on the side facing the frame (2). The bracket (31) is driven by the driver to move along the edge of the frame (2). The driver includes two drive rods (36) provided on the inner side of the bracket (31). The drive rods (36) are driven to rotate by a drive motor (51) on the bearing side wall (32). Each of the two bearing side walls (32) is provided with a limiting roller (33) on the opposite side. When the bracket (31) is connected to the frame (2), the drive rods (36) are in contact with the outer wall of the frame (2), and the limiting rollers (33) are in contact with the inner side of the frame (2). The frame (2) is clamped by the limiting rollers (33) and the drive rods (36).

3. A high-power photovoltaic module with a waterproof sealing structure as described in claim 2, characterized in that: Two sliding grooves are provided on each of the two supporting sidewalls (32) opposite to each other, and the two upper and lower corresponding sliding grooves are inserted into the center rod (53) at the end of the drive rod (36). The center rod (53) is connected to the inner wall of the sliding groove by a traction spring (54), and the traction spring (54) is always in a compressed state. The drive rod (36) moves toward the limiting roller (33) under the action of the traction spring (54).

4. A high-power photovoltaic module with a waterproof sealing structure as described in claim 3, characterized in that: The drive motor (51) and the drive rod (36) are connected by a connector (52), and the connector (52) includes two synchronous belts (525), and both synchronous belts (525) are connected to the same connecting gear (524). One of the synchronous belts (525) is sleeved with the drive gear (523), and the other synchronous belt (525) is sleeved with the transmission gear (526). The connector (52) further includes two linkage arms (521), and both linkage arms (521) are connected to the same linkage gear (524). The drive gear (523) and the transmission gear (526) are respectively connected to the ends of the two linkage arms (521) away from the linkage gear (524). The drive gear (523) is connected to the output shaft of the drive motor (51), and the transmission gear (526) is connected to the drive rod (36). The connector (52) is provided in two sets, and the rotating shafts (522) on the two sets of connectors (52) are connected to each other and connected to the output shaft of the drive motor (51). When the drive rod (36) moves, the two connecting arms (521) drive the synchronous belt (525) to unfold and fold under the squeezing action of the drive rod (36).

5. A high-power photovoltaic module with a waterproof sealing structure as described in claim 1, characterized in that: The adjusting component includes a movable strip (64) disposed between two sidewalls (61), and the movable strip (64) is located above the center strip (62). An adjusting knob (65) is provided on the movable strip (64), and the adjusting knob (65) is connected to the top of the center strip (62). When the adjusting knob (65) is rotated, the movable strip (64) is driven to move up and down along the adjusting knob (65). Each of the two guards (61) has an embedded groove (67) on one side opposite to the other. When the movable strip (64) moves upward along the inner wall of the guard (61), it can be inserted into the embedded groove (67) of the inner wall of the guard (61). The two flanges (61) are provided with a cover layer (66) on the side facing the photovoltaic panel (1), and the cover layer (66) covers the gap between the flange (61) and the center strip (62).

6. A sealing detection system, characterized in that, The system is used to test photovoltaic modules according to any one of claims 1-5. The testing system includes a testing module, a control module, an environmental sensing module, an information transmission module, an alarm module, and a learning module. The testing module uses an integrated sensing device that combines the functions of detecting temperature, humidity, and pressure. The environmental sensing module is connected to the control module and is used to collect information related to sunlight, precipitation, and wind in the environment where the photovoltaic modules are located. Based on the acquired information, the control module adjusts the sampling frequency and detection accuracy threshold of the sensing module. When the environmental information exceeds the preset safety range, the control module adjusts the detection frequency and accuracy threshold. The control module has a built-in temperature field simulation model, which can analyze the temperature distribution gradient of the sealed chamber based on the single-point temperature data collected by the temperature detection element, and determine the location of minor leaks through gradient anomalies; when a sealing defect is detected, the heating element is controlled to heat the medium, and the heating power and duration are adjusted according to the chamber pressure changes fed back by the pressure detection element. The information transmission module adopts an adaptive transmission rule. When a sealing defect is detected, it automatically switches to a low-latency transmission mode to send defect data first; in non-defect states, it adopts a low-power mode. The warning module can generate multi-dimensional warning information, including audible and visual warnings, location markers, and defect trend prediction curves, based on the severity of the sealing defects. The learning module is connected to the control module and can record environmental information, detection data, maintenance plans and subsequent effects for each sealing defect. It generates a sealing life prediction model through learning.

7. The sealing detection system as described in claim 6, characterized in that, It also includes a moisture tracking module and a fluid composition detection module. The moisture tracking module is connected to the humidity detection element and the control module. It can record the moisture diffusion rate and path at points of abnormal humidity, and calculate the leakage level by combining the photovoltaic module tilt angle information. It is divided into three levels: slight, moderate and severe, and corresponding maintenance priorities are generated. The fluid composition detection module is set up in parallel with the pressure detection element to detect changes in the composition of the medium inside the chamber. When external medium intrusion is detected, the control module is triggered to enter the deep detection mode.

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