Detachable photovoltaic module frame, photovoltaic module and photovoltaic system

Abstract

The utility model belongs to the technical field of photovoltaic modules, and particularly relates to a detachable photovoltaic module frame, a photovoltaic module and a photovoltaic system. The photovoltaic module frame comprises a frame body and an auxiliary cover, the frame body is provided with a horizontal supporting wall and a vertical mounting wall which are perpendicular to each other, a clamping groove is formed in the top of the vertical mounting wall, and the clamping groove extends in the length direction of the frame body; a clamping part extending downwards is formed on the lower end face of the auxiliary cover, the clamping part can be slidably connected into the clamping groove in the length direction of the vertical mounting wall, and the clamping groove limits vertical movement of the auxiliary cover; and a clamping space for fixing a photovoltaic module laminated piece is formed between the auxiliary cover and the horizontal supporting wall. Through the sliding design of the auxiliary cover, water vapor can be prevented from permeating the laminated part, the better dust accumulation prevention effect can be achieved, and meanwhile the auxiliary cover can be conveniently detached for surface dust cleaning and matched pressing block installation.

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic module technology, specifically a detachable photovoltaic module frame, photovoltaic module and photovoltaic system. Background Technology

[0002] Optimizing the dust accumulation prevention and water resistance of photovoltaic modules has always been a key technical issue of ongoing concern in the industry. While applying water-blocking adhesive tape can effectively mitigate moisture penetration in edge-blocking solutions for photovoltaic modules, its effectiveness is structurally dependent. When paired with a traditional frame with an A-side, the frame encapsulates the sealing silicone to ensure reliable interface bonding and water-blocking tightness. However, this design can cause significant dust accumulation in low-tilt installation scenarios. The A-side frame structure hinders the natural sliding of dust, leading to continuous dust buildup on the module surface. This not only reduces power generation efficiency but can also, in severe cases, induce hot spot effects and pose safety hazards to the module.

[0003] If a solution combining a frameless A-side with water-blocking tape is adopted, although the planar design can effectively eliminate dust accumulation, it will bring two technical challenges: First, the water-blocking tape is directly exposed to the atmospheric environment and is subjected to environmental stresses such as ultraviolet radiation and temperature and humidity cycles over a long period of time, which will accelerate the decline of its waterproof performance; Second, the lack of a mechanical support surface in the A-side-less structure makes it unsuitable for the industry-standard block-type installation system, which seriously restricts the engineering applicability of the component. Utility Model Content

[0004] To address the problems mentioned above, this utility model provides a detachable photovoltaic module frame, photovoltaic module, and photovoltaic system. By adding an auxiliary cover to the vertical mounting wall, it can not only prevent water vapor from penetrating into the laminate, but also achieve a better dust-proof effect.

[0005] The first objective of this invention is to provide a detachable photovoltaic module frame, comprising:

[0006] The frame body has a horizontal support wall and a vertical mounting wall that are perpendicular to each other. The top of the vertical mounting wall is provided with a snap-fit ​​groove, which extends along the length of the frame body and at least one end penetrates the vertical mounting wall.

[0007] An auxiliary cover has a downwardly extending snap-fit ​​portion on its lower end face. The snap-fit ​​portion can slide along the length of the vertical mounting wall and is connected in a snap-fit ​​groove, which restricts the up-and-down movement of the auxiliary cover. A clamping space for fixing the laminate is formed between the auxiliary cover and the horizontal support wall.

[0008] Furthermore, a downwardly extending fixing part is formed on the side of the auxiliary cover away from the clamping space. When the snap-fit ​​part is located in the snap-fit ​​groove, the fixing part is attached to the outer side of the vertical mounting wall.

[0009] Furthermore, limiting protrusions are formed on both sides of the snap-fit ​​part; limiting grooves with shapes that match the limiting protrusions are formed on the two inner walls of the snap-fit ​​groove, and the limiting grooves extend along the length direction of the frame body and their length is the same as the length of the snap-fit ​​groove.

[0010] Furthermore, the limiting protrusion is located at the bottom of the snap-fit ​​part, the lower surface of the limiting protrusion forms an arc-shaped surface, and the limiting groove is an arc-shaped groove that matches the arc-shaped surface.

[0011] Furthermore, glue-filling grooves are provided on the horizontal support wall.

[0012] Furthermore, it also includes a limiting member, which is installed on the vertical mounting wall and is located on one or both sides of the auxiliary cover. The limiting member is used to restrict the movement of the auxiliary cover along its sliding direction.

[0013] Furthermore, the limiting member is provided with a snap-fit ​​protrusion that matches the snap-fit ​​groove. After the snap-fit ​​protrusion is inserted into the snap-fit ​​groove, the limiting member fits against the outer wall of the vertical mounting wall.

[0014] The second objective of this utility model is to provide a photovoltaic module, including a laminate, on which a frame body of any of the above-mentioned features is installed on the long side and / or short side, and an auxiliary cover slides from one end of the frame body into a snap-fit ​​groove, the length of the auxiliary cover being less than or equal to the length of the frame body.

[0015] Furthermore, multiple auxiliary covers are provided on the long or short side frame body of the laminate.

[0016] The third objective of this invention is to provide a photovoltaic system, including a pressure block and the aforementioned photovoltaic module, wherein the pressure block has a connecting portion, the connecting portion is mounted on the upper surface of an auxiliary cover, and the length of the auxiliary cover is greater than the length of the connecting portion.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] (1) The photovoltaic module frame of this utility model includes a frame body and an auxiliary cover. The auxiliary cover is slidably connected to the vertical mounting wall of the frame body, and a clamping space is formed between the auxiliary cover and the horizontal support wall. A laminate is fixed in the clamping space. The above design enables the auxiliary cover to achieve a better dust prevention effect. The sliding design of the auxiliary cover makes it easy to remove it at any time and clean the surface. The design of the auxiliary cover enables the photovoltaic module to be compatible with the universal press-type installation system, which improves the engineering practicality of the module.

[0019] (2) The photovoltaic module frame of this utility model also has a downwardly extending fixing part on the side of the auxiliary cover away from the clamping space. The fixing part is close to the outer side of the vertical mounting wall. Through the cooperation of the fixing part and the snap-fit ​​part, the auxiliary cover cannot move in the width direction, so that the auxiliary cover can be more stably installed on the vertical mounting wall and can only move along the length direction of the vertical mounting wall.

[0020] (3) The photovoltaic module of this utility model has the auxiliary cover designed to be movable, which allows the photovoltaic module to release a certain deformation displacement through the sliding structure of the auxiliary cover under wind vibration conditions, reduce the stress at the frame connection, extend the structural life of the photovoltaic module, and within the working temperature range of -40℃ to +85℃, the reserved sliding margin can completely absorb the thermal expansion of the aluminum alloy frame, avoiding the accumulation of installation stress. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the disassembled structure of a photovoltaic module frame provided in an embodiment of this application;

[0023] Figure 2 A schematic diagram of the assembly structure of a photovoltaic module frame provided in an embodiment of this application;

[0024] Figure 3 A structural diagram of an auxiliary cover provided in an embodiment of this application (I);

[0025] Figure 4 A secondary cover structure diagram (II) provided for an embodiment of this application;

[0026] Figure 5 A diagram (III) of the auxiliary cover structure provided in an embodiment of this application;

[0027] Figure 6 A diagram (four) of the auxiliary cover structure provided for an embodiment of this application;

[0028] Figure 7 This is a schematic diagram of the installation of a limiting member on a photovoltaic module frame according to an embodiment of this application;

[0029] Figure 8 A structural diagram of a photovoltaic module provided in an embodiment of this application (I);

[0030] Figure 9A structural diagram of a photovoltaic module provided in one embodiment of this application (II);

[0031] Figure 10 A photovoltaic module structure diagram (III) provided for an embodiment of this application;

[0032] Figure 11 A structural diagram of a photovoltaic module provided in one embodiment of this application (IV);

[0033] Figure 12 A structural diagram of a photovoltaic module provided in one embodiment of this application (V);

[0034] Figure 13 An enlarged view of the assembly structure of a photovoltaic module and a pressing block provided in an embodiment of this application;

[0035] Wherein: 1-frame body, 11-horizontal support wall, 12-vertical mounting wall, 13-snap slot, 131-limiting slot, 14-application slot, 2-auxiliary cover, 21-snap part, 211-limiting protrusion, 22-fixing part, 3-limiting component, 31-snap protrusion, 32-limiting protrusion, 4-laminated component, 5-pressing block, 51-connecting part. Detailed Implementation

[0036] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0037] The following is in conjunction with the appendix Figure 1 To be continued Figure 13 The present invention will be described in detail with specific embodiments.

[0038] like Figure 1-13As shown, this utility model provides a detachable photovoltaic module frame, including a frame body 1 and an auxiliary cover 2. The frame body 1 has a horizontal support wall 11 and a vertical mounting wall 12 that are perpendicular to each other. The horizontal support wall 11 and the vertical mounting wall 12 form an L-shaped mounting groove, i.e., a frame without an A-side. A laminate 4 is fixedly installed in the L-shaped mounting groove. A snap-fit ​​groove 13 is formed at the top of the vertical mounting wall 12, extending along the length of the frame body 1. A downwardly extending snap-fit ​​portion 21 is formed on the lower end face of the auxiliary cover 2, slidingly connected to the snap-fit ​​groove 13 along the length of the vertical mounting wall 12. In some embodiments, at least one end of the snap-fit ​​groove 13 penetrates the vertical mounting wall 12. This design facilitates the smooth installation of the auxiliary cover 2 from one end of the vertical mounting wall 12 inwards. In other embodiments, both ends of the snap-fit ​​groove 13 penetrate the vertical mounting wall 12, allowing the auxiliary cover 2 to be detachably mounted. The auxiliary cover 2 is smoothly installed from the outside to the inside from any end of the vertical mounting wall 12. The snap-fit ​​groove 13 usually allows the auxiliary cover 2 to move along the length direction, but restricts the vertical movement of the auxiliary cover 2. The horizontal movement of the auxiliary cover 2 allows it to be removed or installed at any time. Of course, when the auxiliary cover 2 is installed by plugging it in, the vertical movement of the auxiliary cover 2 can be restricted by the interference fit between the snap-fit ​​groove 13 and the snap-fit ​​part 21. The width of the auxiliary cover 2 is longer than the width of the vertical mounting wall 12, so that part of the auxiliary cover 2 is suspended above the horizontal support wall 11. A clamping space is formed between the suspended part of the auxiliary cover 2 and the horizontal support wall 11. The laminate 4 is fixedly installed in the clamping space. Usually, the auxiliary cover 2 is installed at the project site according to the customer's requirements after the component is prepared. That is, before the auxiliary cover 2 is installed, the laminate 4 has been installed as a whole with the frame body 1. After the auxiliary cover 2 is installed, it can slide horizontally and be removed at any time. It should be noted that after the auxiliary cover 2 is installed in place, its horizontal sliding should also be limited by a tight fit or other limiting method to prevent it from deviating from its preset position during long-term use. Furthermore, the auxiliary cover 2 can be installed in fixed quantities according to customer needs, reducing costs. The appearance, shape, and color of the auxiliary cover 2 can also be customized to meet specific customer requirements. Figures 3 to 6 All are specially customized auxiliary covers 2.

[0039] It should be noted that the length direction of the vertical mounting wall 12 described in this application embodiment refers to the direction perpendicular to the paper in the figure, that is, the length direction of the frame body 1. In other words, the frame body 1 is usually long and narrow, and the length direction of the long and narrow shape is the length direction of the vertical mounting wall 12. The width direction is the direction perpendicular to the length direction in the horizontal plane, that is, the width direction of the horizontal support wall 11. At the same time, the above-described snap-fit ​​groove 13 penetrating at least one end of the vertical mounting wall 12 means that one end of the snap-fit ​​groove 13 is flush with the end face of the vertical mounting wall 12 in the length direction, or both ends of the snap-fit ​​groove 13 are flush with the end faces of the vertical mounting wall 12 in the length direction. The purpose is to facilitate the auxiliary cover 2 to slide in and out from one end. As for whether the snap-fit ​​groove 13 penetrates the entire vertical mounting wall 12, penetrates part of the vertical mounting wall 12, or is set in the vertical mounting wall 12, it can be customized according to customer needs, and this application does not limit it.

[0040] The photovoltaic module frame of this application has an auxiliary cover 2 installed above the L-shaped mounting slot. This can prevent water vapor from penetrating into the laminate and prevent water and dust from accumulating between the laminate 4 and the frame body 1. The auxiliary cover 2 is generally installed after the module is manufactured. The sliding design of the auxiliary cover 2 makes it easy to remove and clean the surface at any time. In addition, the design of the auxiliary cover 2 enables the photovoltaic module to be compatible with the universal briquette mounting system, which improves the engineering practicality of the module.

[0041] Preferably, the auxiliary cover 2 of this application is designed to cover the entire frame, which can prevent water vapor from entering the laminate 4 from the connection between the laminate 4 and the frame body 1, thereby improving the water resistance performance of the photovoltaic module.

[0042] In some embodiments, see Figure 1 , Figure 2The auxiliary cover 2 also has a downwardly extending fixing part 22 on the side away from the clamping space. When the snap-fit ​​part 21 is located in the snap-fit ​​groove 13, the fixing part 22 is tightly attached to the outer side of the vertical mounting wall 12. Through the cooperation of the fixing part 22 and the snap-fit ​​part 21, the auxiliary cover 2 cannot move in the width direction, so that the auxiliary cover 2 is more stably installed on the vertical mounting wall 12 and can only move along the length direction of the vertical mounting wall 12. The thickness of the snap-fit ​​part 21 is less than the thickness of the vertical mounting wall 12, so that there is enough space on the vertical mounting wall 12 to open the snap-fit ​​groove 13, so as to realize the connection between the snap-fit ​​part 21 and the snap-fit ​​groove 13. Optionally, the inner wall of the snap-fit ​​groove 13 is anodized to make the surface smooth, reducing the friction and stress concentration when the auxiliary cover 2 slides. The snap-fit ​​part 21 and the fixing part 22 of this application cooperate to fix the auxiliary cover 2, so that the auxiliary cover 2 can be stably installed on the vertical mounting wall 12. The auxiliary cover 2 has a certain water-blocking effect and can improve the component's dust-proof ability. This application does not limit the specific shapes of the fixing part 22 and the snap-fit ​​part 21. For example, the cross-sectional shape of the fixing part 22 can be rectangular, trapezoidal, irregular, etc., as long as the surface in contact with the outer side of the vertical mounting wall 12 is flat; the snap-fit ​​part 21 can be inverted T-shaped, cross-shaped, non-T-shaped, L-shaped, etc., as long as it can slide in the length direction and be limited in the vertical direction. Figure 3 As shown, the snap-fit ​​part 21 is inverted T-shaped; as Figure 4 As shown, the snap-fit ​​part 21 is cross-shaped; as Figure 5 As shown, the latching part 21 is in the shape of a "1" and the latching part 21 and the latching groove 13 are fitted with an interference fit to prevent the latching part 21 from moving in the vertical direction; as Figure 6 As shown, the auxiliary cover 2 only has a snap-fit ​​part 21 and no fixing part 22, yet the auxiliary cover 2 can still be fixed. It can be seen that the snap-fit ​​groove 13 is adapted to the shape of the snap-fit ​​part 21; the shapes of the snap-fit ​​groove 13 are not listed here.

[0043] In some embodiments, see Figures 1 to 5A limiting protrusion 211 is formed on the snap-fit ​​portion 21, and a limiting groove 131 with a shape adapted to the limiting protrusion 211 is formed on the inner wall of the snap-fit ​​groove 13. The extending direction of the limiting protrusion 211 is perpendicular to the main body direction of the snap-fit ​​groove 13. For example, limiting protrusions 211 are formed on both side walls in the width direction of the snap-fit ​​portion 21; a limiting groove 131 extending along the length direction of the vertical mounting wall 12 is formed on the inner wall of the snap-fit ​​groove 13, and at least one end of the limiting groove 131 penetrates the vertical mounting wall 12; the limiting protrusion 211 is slidably connected in the limiting groove 131. It can be understood that the length of the limiting groove 131 is the same as the length of the snap-fit ​​groove 13, and the auxiliary cover 2 is installed in a smooth push-in manner from the outside to the inside, and can be removed at any time according to actual needs after installation. This application does not limit the shape and position of the limiting protrusion 211. It can be set at any position on both sides of the snap-fit ​​part 21. It can be set symmetrically or asymmetrically, as long as it can achieve sliding connection in the snap-fit ​​groove 13.

[0044] In some embodiments, see Figure 1 The limiting protrusion 211 is located at the bottom of the snap-fit ​​part 21. The lower surface of the limiting protrusion 211 forms an arc-shaped surface. The limiting groove 131 is located at the bottom of the snap-fit ​​groove 13. The limiting groove 131 is an arc-shaped groove that matches the arc-shaped surface. The arc-shaped groove is located at the bottom of the snap-fit ​​groove 13. The cooperation between the arc-shaped groove and the arc-shaped surface can increase the contact area, reduce local contact stress, reduce surface wear, and make the sliding of the auxiliary cover 2 more stable. In addition, during the sliding process, the curvature of the arc surface allows the contact point to change dynamically, avoids continuous friction in the fixed area, and extends the service life.

[0045] In some embodiments, the upper surface of the auxiliary cover 2 is coated with a self-cleaning layer, which is made of polytetrafluoroethylene or polymer composite material, but is not limited thereto. The self-cleaning layer can isolate water droplets and dust, preventing water and dust accumulation between the laminate and the frame.

[0046] Furthermore, a glue-filling groove 14 is provided on the horizontal support wall 11. Since the frame body 1 with the L-shaped mounting groove needs to be glued during the assembly process with the laminate 4, the glue-filling groove 14 is designed to facilitate glue application during the assembly of the production line components, and at the same time, it can reduce glue overflow on the upper surface of the vertical mounting wall 12. It can be understood that the glue-filling groove 14 has the function of storing glue and preventing glue overflow. As for its shape, it can be designed according to the actual situation. This application does not limit its shape. For example, it can be triangular, semi-circular, trapezoidal, elliptical, irregular, etc.

[0047] In some embodiments, the auxiliary cover 2 is made of an elastic material, and the snap-fit ​​portion 21 of the auxiliary cover 2 is interference-fitted with the snap-fit ​​groove 13 on the vertical mounting wall 12; the auxiliary cover 2 is designed as an elastic cover so that the snap-fit ​​portion 21 undergoes controllable deformation when inserted, and generates continuous contact pressure through the interference fit.

[0048] It should be noted that when the upper and lower widths of the snap-fit ​​part 21 and the snap-fit ​​groove 13 are the same, the auxiliary cover 2 and the vertical mounting wall 12 can also be connected by inserting them into each other. After insertion, the snap-fit ​​part 21 is relatively fixed in the snap-fit ​​groove 13 by interference fit. Of course, this relative fixation is not absolute. When a certain external force is applied to the auxiliary cover 2, the snap-fit ​​part 21 can still be pushed to slide in the snap-fit ​​groove 13. In a preferred embodiment, the auxiliary cover 2 is made of a high-temperature and high-humidity resistant material or a high-temperature and weather-resistant material with elastic properties, such as silicone rubber, polymer elastomer, ceramic fiber, etc., but is not limited to these.

[0049] In some embodiments, see Figure 7 The photovoltaic module frame also includes a limiting member 3, which is installed on one or both sides of the auxiliary cover 2 to restrict the sliding of the auxiliary cover 2. The purpose of setting the limiting member 3 is to prevent the auxiliary cover 2 from sliding horizontally to both sides after installation. When the length of the snap-fit ​​groove 13 is the same as the length of the vertical mounting wall 12, the sliding of the auxiliary cover 2 can be restricted by installing the limiting member 3 on both sides of the auxiliary cover 2. When only one end of the snap-fit ​​groove 13 penetrates the vertical mounting wall 12, only one limiting member 3 needs to be installed on one side. In a preferred embodiment, the width of the limiting member 3 is greater than the width of the auxiliary cover 2, so that it can completely cover the auxiliary cover 2. For example, as Figure 7 As shown, the limiting member 3 is provided with a snap-fit ​​protrusion 31 that matches the snap-fit ​​groove 13. Limiting protrusions 32 are provided on both sides of the snap-fit ​​protrusion 31. When the snap-fit ​​protrusion 31 is inserted into the snap-fit ​​groove 13, the two limiting protrusions 32 are respectively fitted against the outer walls of the vertical mounting wall 12, thus stably fixing the limiting member 3 to the vertical mounting wall 12. Specifically, the limiting member 3 has an inverted "mountain" shaped structure. The snap-fit ​​protrusion 31 in the middle of the inverted "mountain" shaped structure is inserted into the snap-fit ​​groove 13, and the limiting protrusions 32 on both sides are fitted against the outer walls of the vertical mounting wall 12, so that the limiting member 3 can be stably snapped onto both ends of the vertical mounting wall 12. Of course, in other embodiments, the limiting member 3 can also be installed on both sides of the auxiliary cover 2 via a snap-fit ​​structure. After installation, it is relatively fixed to the frame body 1 via the snap-fit ​​structure, but it can also be removed at any time. After removing the limiting member 3, the auxiliary cover 2 can slide freely in the length direction. It should be noted that the auxiliary cover 2 in this application can be of various lengths. For example, an auxiliary cover 2 of the same length as the vertical mounting wall 12 can be installed on both the long and short sides of the laminate 4. Alternatively, multiple shorter auxiliary covers 2 can be installed on the long and / or short sides, with the multiple auxiliary covers 2 spaced apart. The shorter auxiliary covers 2 can also be installed in conjunction with the pressure block.

[0050] See Figures 8 to 13This utility model also provides a photovoltaic module, including a laminate 4. A detachable photovoltaic module frame, as described above, is mounted on the long and / or short sides of the laminate 4. In other words, the detachable photovoltaic module frame is mounted on the long and / or short sides, which needs to be determined according to the actual working conditions; this application does not impose specific limitations. The laminate 4 includes a back glass at the bottom, and an embossed structure is provided on the contact surface between the back glass and the horizontal support wall 11. The embossed structure design increases the contact area between the potting compound and the back glass, improving adhesion and thus enhancing the module's load-bearing capacity.

[0051] Figure 8 A detachable photovoltaic module frame is installed on one of the short sides of the laminate 4, wherein an auxiliary cover 2 covers the short side of the laminate 4, and a limiting member 3 is fixed at both ends of the auxiliary cover 2. Figure 9 A detachable photovoltaic module frame is installed on both short sides of the laminate 4 of this application. An auxiliary cover 2 covers the short sides of the laminate 4, and a limiting member 3 is fixed at both ends of each auxiliary cover 2. Figure 10 A detachable photovoltaic module frame is installed on each of the two short sides and two long sides of the laminate of this application. Four auxiliary covers 2 cover the entire perimeter of the laminate 4. Limiting pieces are fixed at the four corners of the frame body 1 to prevent the auxiliary covers 2 from moving. Figure 11 Two short auxiliary covers 2 are installed on the two long sides of the laminate 4, which can be used to adapt to the installation of the pressure block 5; Figure 12 The laminate 4 has auxiliary covers 2 on its two short sides, each with a length equivalent to that of the frame body 1. Two short auxiliary covers 2 are installed on each of the two long sides of the laminate 4, which can be used to fit and install with the pressure block 5. In other words, this application does not limit the number of auxiliary covers on the frame body 1 around the laminate 4; one auxiliary cover 2 with a length equivalent to that of the frame body 1 can be provided, or multiple auxiliary covers 2 can be provided at intervals, all of which fall within the scope of protection of this application.

[0052] See Figure 13This application also provides a photovoltaic system, including a pressure block 5 and a photovoltaic module, enabling the detachable photovoltaic module frame of this application to be installed with the pressure block 5. The pressure block 5 has a connecting part 51, which is mounted on the upper surface of the auxiliary cover 2. The length of the auxiliary cover 2 is greater than the length of the connecting part 51, ensuring sufficient contact area between the connecting part 51 and the auxiliary cover 2, thus ensuring the stability of the connection. Since the auxiliary cover 2 can slide horizontally along the length of the vertical mounting wall 12 after installation, it can solve the millimeter-level deviation problem between the bracket guide rail and the pre-installed holes of the module frame, reducing the on-site drilling accuracy requirements and improving installation efficiency. At the same time, the auxiliary cover can be adapted to different models of photovoltaic modules, improving compatibility. It can be seen that the upper limit of the length of the auxiliary cover 2 adapted to the pressure block 5 is the length of the frame body 1, and the lower limit of the length is greater than the length of the pressure block 5. When the length of the auxiliary cover 2 adapted to the pressure block 5 is the length of the frame body 1, it can satisfy the installation method of matching the pressure block 5, and at the same time, it can give the photovoltaic module water-blocking performance.

[0053] The following is a brief explanation of the application effects of auxiliary cover 2:

[0054] The auxiliary cover 2 is installed below the connecting part 51 of the pressure block 51. The length of the auxiliary cover 2 is greater than the length of the connecting part 51. Since the auxiliary cover 2 is pushed in from one side of the vertical mounting wall 12 during installation, it can still slide horizontally after being installed on the frame body 1. It is known that hole alignment is very important in photovoltaic installation; otherwise, the pressure block 5 cannot properly fix the module, affecting the stability of the structure. Traditional installation methods may require high-precision drilling, but the complex on-site construction conditions make it difficult to guarantee accuracy, often leading to rework or material waste. This application, through the sliding design of the auxiliary cover 2, can adapt to hole deviations by adjusting the position of the auxiliary cover 2, reducing the requirement for drilling accuracy and improving efficiency. Meanwhile, different models or sizes of modules only need to adjust the sliding position of the auxiliary cover 2 without redesigning the entire structure, which improves the compatibility of the pressure block 5 and the auxiliary cover 2. In addition, designing the auxiliary cover 2 to be movable allows the photovoltaic module to release a certain deformation displacement through the sliding of the auxiliary cover 2 under wind vibration conditions, reducing the stress at the frame connection and extending the structural life of the photovoltaic module. Moreover, within the operating temperature range of -40℃ to +85℃, the reserved sliding margin can completely absorb the thermal expansion of the aluminum alloy frame, avoiding the accumulation of installation stress. Under normal circumstances, the sliding of the auxiliary cover can release a deformation displacement of 0.5-1.2mm.

[0055] When there is a slight angular deviation in the arrangement of the component array, the sliding of the auxiliary cover 2 can automatically compensate for the linear offset corresponding to the small angular deviation, ensuring that the effective engagement area of ​​the pressure block 5 remains >80%. The sliding design of the auxiliary cover 2 also makes it easy to remove it for regular cleaning of the component surface.

[0056] The installation process of the photovoltaic module in this application is as follows: first, water-blocking tape is pasted around the laminate 4, and a certain amount of potting compound is added into the potting groove 14. Then, the laminate 4 is installed in the L-shaped installation groove. After the potting compound has cured, the auxiliary cover 2 is installed, and the limiting parts 3 are fixedly installed at both ends of the auxiliary cover 2. Alternatively, the module can be transported to the customer's site and the auxiliary cover 2 can be installed according to the requirements.

[0057] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.

Claims

1. A dismountable frame for a photovoltaic module, characterized in that, include: The frame body has a horizontal support wall and a vertical mounting wall that are perpendicular to each other. The top of the vertical mounting wall is provided with a snap-fit ​​groove, which extends along the length direction of the frame body. An auxiliary cover has a downwardly extending snap-fit ​​portion on its lower end face, which can be slidably connected to the snap-fit ​​groove along the length direction of the vertical mounting wall; a clamping space for fixing the photovoltaic module laminate is formed between the upper end of the auxiliary cover and the horizontal support wall.

2. The disassemblable frame for photovoltaic module according to claim 1, wherein, The auxiliary cover also has a downwardly extending fixing part on the side away from the clamping space, which can fit against the outer side of the vertical mounting wall.

3. The disassemblable frame for photovoltaic module according to claim 1, wherein, A limiting protrusion is formed at the lower end of the snap-fit ​​part; a limiting groove with a shape that matches the limiting protrusion is formed at the bottom of the snap-fit ​​groove.

4. The detachable photovoltaic module frame according to claim 3, characterized in that, The extension direction of the limiting protrusion is perpendicular to the direction of the main body of the snap-fit ​​groove.

5. The disassemblable frame for photovoltaic module according to claim 1, wherein, The horizontal support wall is provided with a glue-filling groove.

6. The disassemblable frame for photovoltaic module according to claim 1, wherein, It also includes a limiting member, which is installed on the vertical mounting wall and is located on one or both sides of the auxiliary cover. The limiting member is used to restrict the movement of the auxiliary cover along its sliding direction.

7. The disassemblable frame for photovoltaic module according to claim 1, wherein The auxiliary cover is made of an elastic material, and the snap-fit ​​portion of the auxiliary cover is interference-fitted with the snap-fit ​​groove on the vertical mounting wall.

8. A photovoltaic module, characterized by, The device includes a laminate, on which a frame body as described in any one of claims 1-7 is mounted, and an auxiliary cover slides from one end of the frame body into the snap-fit ​​groove, wherein the length of the auxiliary cover is less than or equal to the length of the frame body.

9. The photovoltaic module of claim 8, wherein, The laminate has a plurality of auxiliary covers on the frame body of the long or short side.

10. A photovoltaic system characterized by, The device includes a pressure block and a photovoltaic module as described in claim 8 or 9, wherein the pressure block has a connecting portion mounted on the upper surface of the auxiliary cover; the length of the auxiliary cover is greater than the length of the connecting portion.

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