Photovoltaic thermal insulation integrated wallboard and preparation method thereof

Abstract

The invention discloses a photovoltaic thermal insulation integrated wallboard and a preparation method thereof.The integrated wallboard comprises a wall body made of concrete or lightweight concrete, frames with concave rabbets are adopted on the two sides of the wall body to serve as formworks to be matched with keels, the keels are matched with the boundary of the wall body in a semi-surrounding mode, and the keels are connected with the wall body. Semicircular tongue-and-groove structures are arranged on the keel at intervals, threaded columns are welded to the end face of the keel, the integrated wall further comprises a photovoltaic panel arranged on the outermost layer of the wall, the photovoltaic panel serves as a facing layer on the outer side of the wall, the photovoltaic panel comprises a surface glass layer and a photovoltaic module, the photovoltaic module is located at the rear end of the photovoltaic panel, and the photovoltaic module is arranged on the surface glass layer. The photovoltaic panels are detachably connected to the wall bodies, and the multiple integrated wall bodies are spliced to form the photovoltaic heat preservation integrated wallboard structure.

Description

Technical Field

[0001] The present invention belongs to the field of building technology, and particularly relates to a photovoltaic and thermal insulation integrated wall panel and a preparation method thereof. Background Art

[0002] When photovoltaic panels are applied to buildings, they are all installed on the roof or other upward surfaces. When installed on the wall, the conventional curtain wall method is mostly used. When installing the curtain wall, larger keels are required for installation. On the one hand, the cavity between the panel and the wall is relatively large, wasting the usable space of the building, and at the same time, the cost is relatively high; in the prior art, due to the relatively high requirement for its thermal insulation performance, the thickness of its thermal insulation layer is generally relatively large. When the project is an ultra-low energy consumption or nearly zero energy consumption building, the thickness of the thermal insulation layer will exceed 200 millimeters. At the same time, higher requirements are put forward for the continuity of the thermal insulation layer and the airtightness of the wall. In the actual construction process, the thin plastering method is mostly used for layer-by-layer anchoring installation. There are many processes in the installation process, and its construction quality is not easy to control.

[0003] In view of the above factors, a photovoltaic and thermal insulation integrated wall panel and a preparation method thereof are provided, which solve the ease of use and safety of the installation of photovoltaic panels, and at the same time realize the integrated structure of the thermal insulation structure. Most of the work is transferred from the on-site construction method at the construction site to the factory prefabrication method, realizing the industrialization of building materials. At the same time, this structure can be applied to conventional photovoltaic and thermal insulation exterior walls, and can also meet the thermal insulation and airtightness requirements of ultra-low energy consumption buildings. Summary of the Invention

[0004] The purpose of the present invention is to provide a photovoltaic and thermal insulation integrated wall panel and a preparation method thereof to solve the problems raised in the above background art.

[0005] The purpose of the present invention is realized by the following technical solutions: A photovoltaic and thermal insulation integrated wall panel, the integrated wall body includes a wall body made of concrete or lightweight concrete. Both sides of the wall body use a frame with a concave rabbet as a formwork to cooperate with the keel. The keel cooperates with the wall boundary in a semi-surrounding form. Semi-circular rabbet structures are arranged at intervals on the keel, and threaded columns are welded on the end surface of the keel;

[0006] The integrated wall body further includes a photovoltaic panel arranged on the outermost layer of the wall body. The outer side of the wall body uses the photovoltaic panel as a decorative layer. The photovoltaic panel includes a surface glass layer and a photovoltaic module. The photovoltaic module is located at the rear end of the photovoltaic panel. The photovoltaic panel is detachably connected to the wall body;

[0007] A plurality of integrated wall bodies are provided, and a plurality of integrated wall bodies are spliced to form a photovoltaic and thermal insulation integrated wall panel structure.

[0008] Further, the photovoltaic module includes a photovoltaic cell on the back of the photovoltaic panel and a cable connector, and the photovoltaic cell and the cable connector are electrically connected;

[0009] The four sides of the photovoltaic panel are perforated for hanging installation. The size of the photovoltaic cell is smaller than that of the photovoltaic panel, and the perforated parts on the four sides are all glass protective layers.

[0010] Furthermore, the integrated wall further includes a heat insulation layer and an adhesive layer disposed between the photovoltaic panel and the wall; the heat insulation layer uses Class A heat insulation materials, including any one of rock wool boards, thermosetting polystyrene boards, and vacuum insulation panels;

[0011] The heat insulation layer is fixed to the wall by a combination of adhesion and anchoring through the adhesive layer and the anchoring adapter.

[0012] Furthermore, the anchoring adapter is processed from HRP material. The anchoring adapter has a structure with a disk on one side and internal threads on both sides. One side of the disk is pressed against the side of the heat insulation layer close to the photovoltaic panel, and the heat insulation layer is anchored to the wall through the tightening action of the disk and the threads with the threaded column of the wall.

[0013] Furthermore, the outside of the photovoltaic panel is mounted on the anchoring adapter on the wall panel through a fixed thread cover. The threaded part of the fixed thread cover is screwed into the exposed internal thread of the anchoring adapter to achieve anchoring.

[0014] Furthermore, through holes are opened on the four sides of the photovoltaic panel. Adjusting washers are installed in the through holes. The adjusting washers include a round hole structure adjusting washer and three long hole structure adjusting washers. The round hole structure adjusting washer and the long hole structure adjusting washer are respectively installed in the upper two groups of through holes. Among them, the long hole direction of the long hole structure adjusting washer is horizontally installed, and the long hole structure adjusting washers are installed in the lower two groups of through holes, and the long hole direction of the long hole structure adjusting washer is vertically installed.

[0015] Furthermore, the adjusting washers are made of deformable materials such as nylon, polytetrafluoroethylene or rubber.

[0016] Furthermore, the adhesive layer is formed by scraping polymer adhesive mortar onto the wall and the heat insulation layer for direct adhesion, or the heat insulation layer can be placed on the lower side as a bottom formwork, and the wall is poured onto the surface of the heat insulation layer.

[0017] Furthermore, a sealing structure is installed between the splicing of several adjacent integrated walls. The sealing structure includes a waterproof sealing rod and a sealing strip. The waterproof sealing rod and the sealing strip are respectively installed in the semi-circular rabbet structures arranged at intervals on the keel. The seams between the adjacent spliced integrated walls are sealed with sealing mortar.

[0018] A preparation method for the photovoltaic and heat insulation integrated wall panel specifically includes the following steps;

[0019] The outermost layer of the integrated wall uses photovoltaic panels as the decorative layer. The photovoltaic panels are composed of a glass layer on the surface, photovoltaic cells on the back, and cable connectors. The glass part is perforated around the perimeter for hanging installation. The size of the photovoltaic cells is smaller than that of the glass panel, and the perforated parts around the perimeter are all glass protective layers;

[0020] Among them, the wall and the insulation layer are prefabricated. The wall is installed on the main structure by hoisting. During installation, the keels on both sides serve as installation parts and are anchored to the base wall through installation angle codes up and down. During installation, a rabbet structure is provided at the edge of the insulation layer of each wall panel. During installation, an additional piece of the same type of insulation material is installed in the rabbet to achieve a continuous structure of the insulation layer; and a water-swellable rubber strip and an airtight strip are filled in the semi-circular rabbet of the wall keel to achieve the airtightness and watertightness of the wall;

[0021] After the above-mentioned wall is installed in place, adjusting washers are installed in the four holes of the photovoltaic panel. The adjusting washers include a round-hole structure adjusting washer and three long-hole structure adjusting washers. Among them, the round-hole structure adjusting washer and the long-hole structure adjusting washer are respectively installed in the two groups of through holes above. The long-hole direction of the long-hole structure adjusting washer is horizontally installed. The long-hole structure adjusting washers are installed in the two groups of through holes below, and the long-hole direction of the long-hole structure adjusting washer is vertically installed. After the adjusting washers are in place, the photovoltaic panel is installed on the anchoring adapter of the prefabricated wall panel through a fixed threaded cover. The threaded part of the fixed threaded cover is screwed into the exposed internal thread of the anchoring adapter to achieve anchoring.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] The present invention solves the ease of use and safety of the installation of photovoltaic panels, and at the same time realizes the integrated structure of the thermal insulation structure, converting most of the work from the on-site construction method at the construction site to the factory prefabrication method, realizing the industrialization of building materials.

[0024] The photovoltaic panel of the present invention not only realizes the installation method of the point-supported curtain wall, but also solves the problem that the point-supported curtain wall cannot guarantee the anchoring safety due to the inability of the anchor to the wall. Since the thermal insulation layer adopts the factory prefabrication method, the bonding layer and the base wall can achieve controllable and effective bonding, and the anchoring adapter is connected and anchored to the wall keel through threads.

[0025] Since all the anchorings of the present invention are mechanical anchorings, the anchoring adapter made of HRP material breaks the thermal bridge of the anchoring system. The rabbet structure between the thermal insulation layers makes the thermal insulation layer completely continuous, realizing a thermal insulation structure without cold bridges and full continuity of thermal insulation. At the same time, the rabbet structure in the middle of the wall realizes the watertightness and airtightness structures, solving the requirements for sealing and thermal insulation of passive buildings, and is a new direction for the industrialization of passive building envelope walls. Description of the Drawings

[0026] Figure 1 is a three-dimensional schematic diagram of the present invention;

[0027] Figure 2 is another three-dimensional schematic diagram of the present invention;

[0028] Figure 3 is a rear view schematic diagram of the photovoltaic panel of the present invention;

[0029] Figure 4 is a top view schematic diagram of the integrated wall of the present invention;

[0030] Figure 5 is a top view schematic diagram of the structure of the photovoltaic and thermal insulation integrated wall panel of the present invention;

[0031] Figure 6 is a connection schematic diagram of the anchoring adapter and the fixed threaded cap of the present invention;

[0032] Figure 7 is a vertical installation schematic diagram of the long-hole structure adjusting pad of the present invention;

[0033] Figure 8 is a horizontal installation schematic diagram of the long-hole structure adjusting pad of the present invention. Detailed implementation manners

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0036] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0037] Such as Figure 1-8As shown in the figure, a photovoltaic and thermal insulation integrated wall panel is provided. The integrated wall body includes a wall body 1 made of concrete or lightweight concrete. On both sides of the wall body 1, frames with concave rabbets are used as templates to cooperate with keels 2. The keels 2 are cooperated with the boundary of the wall body 1 in a semi-surrounding form. Semi-circular rabbet structures 3 are arranged at intervals on the keels 2, and threaded columns 4 are welded on the end faces of the keels 2;

[0038] The integrated wall body further includes a photovoltaic panel 5 arranged on the outermost layer of the wall body 1. The outer side of the wall body 1 uses the photovoltaic panel 5 as a decorative layer. The photovoltaic panel 5 includes a surface glass layer 6 and a photovoltaic module 7. The photovoltaic module 7 is located at the rear end of the photovoltaic panel 5. The photovoltaic panel 5 is detachably connected to the wall body 1;

[0039] A plurality of integrated wall bodies are provided, and the plurality of integrated wall bodies are spliced to form a photovoltaic and thermal insulation integrated wall panel structure.

[0040] The photovoltaic module 7 includes a photovoltaic cell 8 on the back of the photovoltaic panel and a cable connector 9. The photovoltaic cell 8 and the cable connector 9 are electrically connected;

[0041] The four sides of the photovoltaic panel 5 are subjected to hole opening treatment for hanging installation. The size of the photovoltaic cell 8 is smaller than the size of the photovoltaic panel, and the hole opening parts on the four sides are all glass protection layers.

[0042] In order to facilitate wall body thermal insulation in the use state, the integrated wall body further includes a thermal insulation layer 10 and an adhesive layer 11 arranged between the photovoltaic panel 5 and the wall body 1; the thermal insulation layer 10 uses an A-level thermal insulation material, including any one of rock wool boards, thermosetting polystyrene boards, and vacuum insulation boards;

[0043] The thermal insulation layer 10 is fixed on the wall body 1 by means of a combination of adhesion and anchoring through the adhesive layer 11 and an anchoring adapter 12.

[0044] When the thermal insulation layer 10 has a notch structure, during the installation process, rectangular homogeneous thermal insulation materials are installed in the thermal insulation material grooves of two wall panels. This approach is to make the thermal insulation layer continuous in ultra-low energy consumption. In addition, the anchoring adapter is made of HRP material because this material has a low thermal conductivity and will not form a cold bridge like metal anchor parts, which can meet the requirement of making the thermal insulation layer continuous and cold-bridge-free in ultra-low energy consumption.

[0045] In order to facilitate ensuring the anchoring safety and stability in the use state, the anchoring adapter 12 is made of HRP material. The anchoring adapter 12 has a structure with a disc on one side and internal threads on both sides. One side of the disc is pressed against the side of the thermal insulation layer close to the photovoltaic panel 5, and the thermal insulation layer 10 is anchored on the wall body 1 through the screwing action of the disc and the threads with the threaded columns of the wall body.

[0046] The outer side of the photovoltaic panel 5 is mounted on the anchoring adapter 12 on the wall panel 1 through a fixed threaded cover 13. The threaded part of the fixed threaded cover 13 is screwed into the exposed internal thread of the anchoring adapter 12 to achieve anchoring.

[0047] The above structural arrangement not only realizes the installation of the point-hung curtain wall, but also solves the problem that the anchoring safety of the point-hung curtain wall cannot be guaranteed due to the anchor and the base wall.

[0048] To facilitate flexible anchoring by adjusting the washer in the use state and minimize the deformation amplitude of the photovoltaic panel when it is deformed by wind load, through holes 14 are opened around the photovoltaic panel 5. An adjusting washer 15 is installed in the through holes 14. The adjusting washer 15 includes a round hole structure adjusting pad and three long hole structure adjusting pads. The round hole structure adjusting pad and the long hole structure adjusting pad are respectively installed in the upper two groups of through holes. Among them, the long hole direction of the long hole structure adjusting pad is horizontally installed, and the long hole structure adjusting pads are installed in the lower two groups of through holes, and the long hole direction of the long hole structure adjusting pad is vertically installed.

[0049] The adjusting washer 15 is made of a deformable material such as nylon, polytetrafluoroethylene or rubber.

[0050] With the above structural arrangement, on the one hand, after the threaded cover and the anchoring connector fix the photovoltaic panel to the wall through the intermediate adjusting washer, under the action of wind load, the glass panel will generate a large deflection, and the rigid connection will cause damage to the panel. The conventional method often uses the spherical joint method, which is mostly used in the construction of large-area glass curtain walls, and the cost of its joints is relatively high. In this patent, the area of the photovoltaic panel is required to be less than 1 square meter. After installation, the problem of rigid connection between the panel and the anchoring adapter is approached through slight compression of the adjusting washer. At the same time, due to the large difference in the size of the panel compared with the large area of the curtain wall, the deformation amplitude of the panel when it is deformed by wind load is also relatively small. Flexible anchoring is achieved through the adjusting washer, which is suitable for the panel structure of small areas.

[0051] The bonding layer 11 is formed by scraping polymer bonding mortar onto the wall 1 and directly bonding it to the insulation layer 10, or the insulation layer 10 can be placed on the lower side as a bottom formwork, and the wall 1 is poured onto the surface of the insulation layer 10.

[0052] To achieve watertightness and airtightness through the rabbet structure in the wall in the use state and meet the requirements of building sealing and insulation, a sealing structure is installed between the splicing of several adjacent integrated walls. The sealing structure includes a waterproof sealing rod 16 and a sealing strip 17. The waterproof sealing rod 16 and the sealing strip 17 are respectively installed in the semi-circular rabbet structures 3 arranged at intervals on the keel 2. The seam between the spliced plates of adjacent integrated walls is sealed with sealing mortar.

[0053] Preparation method of photovoltaic and thermal insulation integrated wall panel, specifically including the following steps;

[0054] The outermost layer of the integrated wall uses a photovoltaic panel as the decorative layer. The photovoltaic panel is composed of a glass layer on the surface, a photovoltaic cell on the back, and a cable connector. The glass part is perforated around the perimeter for hanging installation. The size of the photovoltaic cell is smaller than that of the glass panel, and the perforated parts around the perimeter are glass protective layers;

[0055] Among them, the wall and the insulation layer are prefabricated and formed. The wall is installed on the main structure by hoisting. When installing, the keels on both sides are used as installation parts, and are anchored to the base wall through installation angle codes up and down. When installing, a rabbet structure is provided at the edge of the insulation layer of each wall panel. When installing, an additional piece of the same type of insulation material is installed in the rabbet to realize the continuous structure of the insulation layer; and a water-swelling rubber strip and an airtight strip are filled in the semi-circular rabbet of the wall keel to realize the airtightness and watertightness of the wall;

[0056] After the above-mentioned wall is installed in place, adjustment washers are installed in the four holes of the photovoltaic panel. The adjustment washers include a round hole structure adjustment washer and three long hole structure adjustment washers. Among them, the round hole structure adjustment washer and the long hole structure adjustment washer are respectively installed in the two sets of through holes above. The long hole direction of the long hole structure adjustment washer is horizontally installed. The long hole structure adjustment washers are installed in the two sets of through holes below, and the long hole direction of the long hole structure adjustment washer is vertically installed. After the adjustment washers are in place, the photovoltaic panel is installed on the anchoring adapter of the prefabricated wall panel through a fixed thread cover. The threaded part of the fixed thread cover is screwed into the exposed internal thread of the anchoring adapter to realize anchoring.

[0057] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0058] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A photovoltaic and thermal insulation integrated wall panel, characterized in that: The integrated wall includes a wall made of concrete or lightweight concrete. On both sides of the wall, frames with concave rabbets are used as formworks to cooperate with the keels. The keels cooperate with the wall boundary in a semi-surrounding form. Semi-circular rabbet structures are arranged at intervals on the keels, and threaded columns are welded on the end faces of the keels; The integrated wall further includes a photovoltaic panel arranged on the outermost layer of the wall. The outer side of the wall uses the photovoltaic panel as a decorative layer. The photovoltaic panel includes a surface glass layer and a photovoltaic module. The photovoltaic module is located at the rear end of the photovoltaic panel. The photovoltaic panel is detachably connected to the wall; A number of integrated walls are provided, and a number of integrated walls are spliced to form a photovoltaic and thermal insulation integrated wallboard structure.

2. The integrated photovoltaic and thermal insulation wall panel according to claim 1, wherein: The photovoltaic module includes a photovoltaic cell and a cable connector on the back of the photovoltaic panel. The photovoltaic cell and the cable connector are electrically connected; The four sides of the photovoltaic panel are processed with holes for hanging installation. The size of the photovoltaic cell is smaller than that of the photovoltaic panel, and the parts with holes on the four sides are all glass protection layers.

3. The integrated photovoltaic and thermal insulation wall panel according to claim 2, wherein: The integrated wall further includes a thermal insulation layer and an adhesive layer arranged between the photovoltaic panel and the wall; the thermal insulation layer uses Class A thermal insulation materials, including any one of rock wool boards, thermosetting polystyrene boards, and vacuum insulation panels; The thermal insulation layer is fixed on the wall by a combination of adhesion and anchoring through the adhesive layer and the anchoring adapter.

4. The integrated photovoltaic and thermal insulation wall panel according to claim 3, characterized in that: The anchoring adapter is made of HRP material. The anchoring adapter has a disk on one side and internal threads on both sides. One side of the disk is pressed against the side of the thermal insulation layer close to the photovoltaic panel, and the thermal insulation layer is anchored on the wall through the tightening action of the disk and the threads with the threaded columns on the wall.

5. The integrated photovoltaic and thermal insulation wall panel according to claim 4, wherein: The outer side of the photovoltaic panel is installed on the anchoring adapter on the wallboard through a fixed threaded cap. The threaded part of the fixed threaded cap is screwed into the exposed internal threads of the anchoring adapter to achieve anchoring.

6. The integrated photovoltaic and thermal insulation wall panel according to claim 4, characterized in that: Through holes are opened around the photovoltaic panel. Adjusting washers are installed in the through holes. The adjusting washers include a round hole structure adjusting washer and three long hole structure adjusting washers. Among them, the round hole structure adjusting washer and the long hole structure adjusting washer are respectively installed in the upper two groups of through holes. The long hole direction of the long hole structure adjusting washer is horizontally installed. The long hole structure adjusting washers are installed in the lower two groups of through holes, and the long hole direction of the long hole structure adjusting washer is vertically installed.

7. The integrated photovoltaic and thermal insulation wall panel according to claim 6, characterized in that: The adjusting washers are made of deformable materials such as nylon, polytetrafluoroethylene or rubber.

8. The integrated photovoltaic and thermal insulation wall panel according to claim 7, characterized in that: The adhesive layer is made of polymer adhesive mortar and scraped on the wall and the thermal insulation layer for direct bonding, or the thermal insulation layer can be placed on the lower side as a bottom formwork, and the wall is poured onto the surface of the thermal insulation layer.

9. The integrated photovoltaic and thermal insulation wall panel according to claim 8, characterized in that: A sealing structure is installed between the splicing of several adjacent integrated walls. The sealing structure includes a waterproof sealing rod and a sealing strip. The waterproof sealing rod and the sealing strip are respectively installed in the semi-circular rabbet structures arranged at intervals on the keels. The plate joints of adjacent spliced integrated walls are sealed with sealing mortar.

10. The preparation method of the integrated photovoltaic and thermal insulation wall panel according to any one of claims 1-9, characterized in that: Specifically, it includes the following steps; The outermost layer of the integrated wall adopts photovoltaic panels as the decorative layer. The photovoltaic panels are composed of a glass layer on the surface, photovoltaic cells on the back, and cable connectors. The glass part is perforated around the perimeter for suspended installation. The size of the photovoltaic cells is smaller than that of the glass panel, and the perforated parts around the perimeter are all glass protective layers; Among them, the wall and the insulation layer are prefabricated and formed. The wall is installed on the main structure by hoisting. During installation, the keels on both sides serve as installation components and are anchored to the base wall through installation angle codes up and down. When installing, a rabbet structure is provided at the edge of the insulation layer of each wall panel. During installation, a structure form of adding a piece of the same type of insulation material installed in the rabbet is adopted to achieve the continuous structure of the insulation layer; and a water-swellable rubber strip and an airtight strip are filled in the semi-circular rabbets of the wall keels to achieve the airtightness and watertightness of the wall; After the above-mentioned wall is installed in place, adjustment washers are installed in the four holes of the photovoltaic panel. The adjustment washers include a round-hole structure adjustment washer and three long-hole structure adjustment washers. Among them, a round-hole structure adjustment washer and a long-hole structure adjustment washer are respectively installed in the upper two groups of through holes. The long-hole direction of the long-hole structure adjustment washer is horizontally installed. Long-hole structure adjustment washers are installed in the lower two groups of through holes, and the long-hole direction of the long-hole structure adjustment washer is vertically installed. After the adjustment washers are in place, the photovoltaic panel is installed on the anchoring adapter of the prefabricated wall panel through a fixed threaded cover. The threaded part of the fixed threaded cover is screwed into the exposed internal thread of the anchoring adapter to achieve anchoring.

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