Aluminum plate type building integrated photovoltaics (BIPV) curtain wall

Abstract

The utility model discloses an aluminum plate type building integrated photovoltaics (BIPV) curtain wall which comprises an aluminum plate supporting frame, a crystalline silicon double-glass photovoltaic panel, a curtain wall main keel and a curtain wall secondary keel, an internal area defined by the aluminum plate supporting frame is a curtain wall area, a hollow structure is formed in the curtain wall area, photovoltaic structural adhesive is coated inside and at the edge position of the curtain wall area, and the aluminum plate supporting frame and the crystalline silicon double-glass photovoltaic panel are arranged in the curtain wall area. The crystalline silicon double-glass photovoltaic panel is pressed and fixed on the curtain wall area through the photovoltaic structural adhesive; a threading hole is formed in the side surface of the aluminum plate supporting frame and is used for allowing a photovoltaic direct-current cable to penetrate through; and the curtain wall main keels and the curtain wall secondary keels are vertically and horizontally connected to form a plurality of areas for placing the aluminum plate supporting frames. According to the utility model, through the specially-made side wire penetrating holes, rapid mechanical connection can be realized, product characteristics can be perfectly combined, wires can be hidden in the wire penetrating holes, and the combination of the aluminum plate and the crystal silicon assembly saves the material of the aluminum plate, reduces the cost, can be rapidly constructed, improves the power generation efficiency, and also can realize the appearance effect of a glass curtain wall.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic systems, and in particular to an aluminum plate type BIPV curtain wall used for the exterior facades of industrial and commercial buildings. Background Art

[0002] With the rapid development of the world economy, my country has proposed the development goals of "carbon peak and carbon neutrality", and solar photovoltaic new energy has developed by leaps and bounds, and more and more distributed photovoltaic projects are booming in the direction of multiple scenarios. As we all know, photovoltaic building integration (BIPV Building Integrated PV, PV is Photovoltaic) is a technology that integrates solar power generation (photovoltaic) products into buildings. Photovoltaic building integration can be divided into two categories: one is the combination of photovoltaic arrays and buildings. The other is the integration of photovoltaic arrays and buildings. Among the existing distributed BIPV products, they are mainly distributed on roofs and ancillary structures, and are mostly used for color steel roofs. With the market demand, the public's aesthetic appreciation of the appearance of buildings has improved, and the decorative effect of the exterior walls of buildings has become higher and higher. The conventional double-layer tempered glass laminated photovoltaic products used in the market are costly and uneconomical; the production cycle is relatively long, and its connection with the building is equivalent to the glass curtain wall method, and the cost is high.

[0003] There are also double-layer hollow tempered glass film modules encapsulated by aluminum plates. The junction box is located on the side of the module. The production is complicated, the glass is thick and heavy, and a large structure is required to support it. The production cycle is also long and the cost is high. During the use of photovoltaic modules encapsulated by all aluminum plates, the heat generated by power generation is dissipated slowly, which will affect the power generation efficiency to a certain extent.

[0004] Conventional products only reflect the properties of glass buildings and do not integrate the aesthetics of architectural aluminum curtain walls; and most of them are thin-film power generation. Traditional BAPV photovoltaic modules can no longer meet various needs. Photovoltaic integrated products show diverse needs, comprehensive functions, and highly aesthetic appeal.

[0005] At present, there is a huge stock of aluminum plate buildings in society, which involve a wide range of industries and have a good foundation for adding photovoltaic green energy. It can effectively solve my country’s energy crisis, promote the healthy development of building photovoltaics, and take a solid step towards achieving the development goals of "carbon peak and carbon neutrality".

[0006] Aluminum panels are often used for the exterior decoration of industrial and commercial buildings, which have high safety level requirements. Conventional integrated building products on the market are often made of a combination of thin film and hollow tempered glass with frames, which cannot perfectly meet the needs of aluminum panel appearance, the stability of photovoltaic power generation, and the characteristics of rapid production and installation and lightweight. Thin-film photovoltaic modules are expensive and have lower conversion efficiency than crystalline silicon modules. The AC cables of photovoltaic modules are hidden in the glue seams, and the construction quality is harsh and unsightly. Utility Model Content

[0007] In view of the shortcomings of the prior art, the utility model provides an aluminum plate type BIPV curtain wall, which can achieve quick mechanical connection and perfectly combine product characteristics to hide the wires inside through special side wire holes. The combination of aluminum plate and crystalline silicon component saves aluminum plate material and reduces cost, can be quickly constructed, improves power generation efficiency, and achieves the appearance of a glass curtain wall.

[0008] The utility model adopts the following technical solutions:

[0009] An aluminum plate type BIPV curtain wall comprises an aluminum plate supporting frame, a crystalline silicon double-glass photovoltaic panel, a main curtain wall keel and a secondary curtain wall keel. The internal area enclosed by the aluminum plate supporting frame is the curtain wall area. The curtain wall area is formed with a hollow structure. Photovoltaic structural adhesive is coated on the interior and edge positions of the curtain wall area. The crystalline silicon double-glass photovoltaic panel is fixed to the curtain wall area by pressing the photovoltaic structural adhesive. Wire holes are provided on the side surfaces of the aluminum plate supporting frame for passing photovoltaic DC cables. The main curtain wall keels and the secondary curtain wall keels are connected vertically and horizontally to form a plurality of areas for placing the aluminum plate supporting frame.

[0010] Furthermore, the aluminum plate supporting frame is a box-shaped structure with a central cavity formed by folding aluminum plates, a lining plate is provided in the curtain wall area surrounded by the aluminum plate supporting frame, a hollow structure is formed on the lining plate, and connected wire threading holes are provided on the two opposite outer sides of the aluminum plate supporting frame.

[0011] Preferably, the hollow structure on the lining plate is a plurality of cross structures.

[0012] Preferably, the aluminum plate supporting frame is connected to the curtain wall main keel and the curtain wall secondary keel through aluminum alloy angle brackets.

[0013] Preferably, the crystalline silicon double-glass photovoltaic panel is a frameless double-layer glass.

[0014] Furthermore, the aluminum plate BIPV curtain wall is also provided with a lightning protection device, which includes: a voltage-equalizing ring, a fixing plate and a flexible conductive copper cable. The voltage-equalizing ring passes through each of the main keels of the curtain wall from the top and the bottom respectively, and extends from the left and right sides and is connected to form a closed loop. The voltage-equalizing ring is fixed to each of the main keels of the curtain wall through the fixing plate. The upper curtain wall main keel and the lower curtain wall main keel are connected by a steel sleeve core, and then the two are connected by a passage through the flexible conductive copper cable.

[0015] Preferably, the upper and lower span distance and the left and right span distance of the pressure equalizing ring are ≤10m. The technical solution of the utility model has the following advantages:

[0016] A. The utility model combines the aluminum plate support frame with the crystalline silicon double-glass photovoltaic panel, which can reflect the architectural and structural properties of the aluminum plate on the building exterior, and can also realize the power generation properties. Through the threading holes on the outer surface of the aluminum plate support frame and the hollow structure in the curtain wall area, the crystalline silicon double-glass photovoltaic panel can be perfectly integrated into the building decoration aluminum plate; combined into a whole by photovoltaic structural adhesive, the aluminum plate and the double-glass crystalline silicon component support each other and exert structural performance. Compared with the traditional laminated hollow component, it is light in weight and simple in production cost, which is conducive to reducing structural loads and saving overall costs. At the same time, it can enrich the diversity of BIPV products, greatly improve the scene of photovoltaic panel laying and the comprehensive conversion efficiency of light energy, and enable crystalline silicon components to be used in building exterior decoration projects.

[0017] B. The combination of the aluminum plate support frame and the crystalline silicon double-glass photovoltaic panel has a certain ornamental effect in the appearance of architectural decoration, and can be used in multiple scenarios such as exterior decoration, awnings, and sunshade blinds; through the utility model, the components and process factories can be standardized and mass-produced, and rapid installation can be achieved on site, shortening the project period and saving costs.

[0018] C. The utility model can meet the functional requirements of the building by adopting the lightning protection device, while reducing the harm caused by lightning strikes to distributed power stations. The fully penetrated lightning protection device can effectively protect the photovoltaic curtain wall system from damage by lightning strikes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the present utility model, the drawings required for use in the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A three-dimensional diagram of the aluminum plate BIPV curtain wall provided by the utility model;

[0021] Figure 2 A product combination diagram of an aluminum plate BIPV curtain wall is provided for this utility model;

[0022] Figure 3 This is a detailed drawing of the threading hole in the utility model;

[0023] Figure 4 The curtain wall lightning protection layout diagram provided by the utility model;

[0024] Figure 5 Curtain wall connection and lightning protection structure provided by the utility model Figure Ⅰ ;

[0025] Figure 6 Curtain wall connection and lightning protection structure provided by the utility model Figure II .

[0026] The following are marked in the figure:

[0027] 1-Aluminum plate support frame

[0028] 11- curtain wall area, 12- threading hole

[0029] 2-Crystalline silicon double-glass photovoltaic panels; 3-Main curtain wall keel; 4-Second curtain wall keel

[0030] 5-Photovoltaic structural adhesive; 6-Liner; 7-Aluminum alloy corner code

[0031] 8-Lightning protection device

[0032] 81-pressure equalizing ring, 82-fixing plate, 83-flexible conductive copper cable

[0033] 9-Steel core; 10-Flexible conductive copper cable; 20-DC cable; 30-Connection connector

[0034] 40-weatherproof sealant, foam rod; 50-lightning protection wire; 60-back panel aluminum strip

[0035] a-Hollow structure. DETAILED DESCRIPTION

[0036] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship 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 cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] like Figure 1 As shown, the utility model provides an aluminum plate type BIPV curtain wall, including an aluminum plate support frame 1, a crystalline silicon double-glass photovoltaic panel 2, a curtain wall main keel 3 and a curtain wall secondary keel 4. The internal area surrounded by the aluminum plate support frame 1 is a curtain wall area 11. The curtain wall area 11 is formed with a hollow structure. The interior and edge positions of the curtain wall area 11 are coated with photovoltaic structural adhesive 5. The crystalline silicon double-glass photovoltaic panel 2 is pressed and fixed on the curtain wall area 11 by the photovoltaic structural adhesive 5. A threading hole 12 is provided on the side of the aluminum plate support frame 1 for passing a photovoltaic DC cable 20, such as Figure 1 and Figure 3 As shown, a threading hole 12 is provided in the middle of each of the left and right side surfaces, and two threading holes 12 are provided at intervals on the upper and lower side surfaces, which are also used to pass DC cables; the main curtain wall keel 3 and the secondary curtain wall keel 4 are connected vertically and horizontally to form multiple areas for placing the aluminum plate support frame 1, from Figure 4 It can be seen that the main curtain wall purlins 3 and the secondary curtain wall purlins 4 are crisscrossed and connected to form a plurality of square grid areas distributed in an array. The square grid areas are used to install the aluminum plate support frame 1 with the crystalline silicon double-glass photovoltaic panel 2. The aluminum plate support frame 1 is preferably connected to the main curtain wall purlins 3 and the secondary curtain wall purlins 4 through aluminum alloy angle codes 7.

[0040] like Figure 2As shown, the aluminum plate supporting frame 1 used here is preferably a box-shaped structure with a central cavity formed by folding aluminum plates. The surrounding outer side of the aluminum plate supporting frame 1 is closed by a vertical plate, and the threading holes are formed on the vertical plate on the outer side. A lining plate 6 is provided in the curtain wall area 11 surrounded by the aluminum plate supporting frame 1, and a hollow structure a is formed on the lining plate 6. The interconnected threading holes 12 are provided on the two opposite outer sides of the aluminum plate supporting frame 1, and the hollow structure a on the lining plate 6 is a plurality of cross structures. The use of the hollow structure and the hollow aluminum plate supporting frame greatly reduces the weight of the curtain wall and saves costs. The utility model not only reflects the architectural and structural properties of aluminum plates in building exterior decoration, but also realizes the power generation properties. Through the threading holes on the outer surface of the aluminum plate support frame and the hollow structure in the curtain wall area, the crystalline silicon double-glass photovoltaic panel can be perfectly integrated into the building decoration aluminum plate; through the photovoltaic structural adhesive, the aluminum plate and the crystalline silicon double-glass photovoltaic panel are combined into a whole, and the aluminum plate and the crystalline silicon double-glass photovoltaic panel support each other and exert structural performance. Compared with the traditional laminated hollow components, the weight is light, the production cost is simple, and it is conducive to reducing the structural load and saving the overall cost. At the same time, it can enrich the diversity of BIPV products, greatly improve the scenes of photovoltaic panel laying and the comprehensive conversion efficiency of light energy, and enable crystalline silicon components to be used in building exterior decoration projects.

[0041] The crystalline silicon double-glass photovoltaic panel 2 used in the utility model is a double-layer glass without a frame. The monocrystalline silicon component has the characteristics of high conversion efficiency and low cost, so as to meet the requirements of building fire prevention, lightning protection, hail protection, etc., so that it can form a reliable whole with the aluminum plate and meet the performance requirements of various aspects of the building; the photovoltaic structural adhesive used is a two-component product, which has at least 25 years of adhesion, corrosion resistance, fatigue resistance, high strength, aging resistance, stable and reliable special structural adhesive. The main keel and secondary keel of the curtain wall used are both light steel keels, and insulation measures are set between the light steel keel and the aluminum plate and the main structure to avoid the formation of high-level electric difference corrosion machine materials.

[0042] The aluminum plate support frame is based on the building appearance separation seam and the size of the crystalline silicon module. The appearance size of the aluminum plate support frame is determined and pre-stamped in the factory. The frame fold is ≥40mm to ensure that there is enough space to place the photovoltaic module diode junction box. The lining plate 6 in the curtain wall area 11 inside the aluminum plate support frame 1 is punched into a cross-shaped hollow structure, and the lining plate 6 is 7mm concave than the outer surface; 2 threading holes are set on the upper and lower parts of the aluminum plate support frame, one on the left and one on the right, and the threading hole shape is square (75mm×30mm); then the aluminum plate support frame is anti-corrosion treated and the photovoltaic structural adhesive is fully coated on the cross lining plate to form a combination of the crystalline silicon double-glass photovoltaic panel 2 and the aluminum plate support frame 1. After the overall panel is combined, it has a certain strength, rigidity, stability, and sealing. Finally, aluminum alloy 7 angle codes are set around the aluminum plate support frame, with an interval of ≤350mm.

[0043] like Figure 4 , Figure 5 and Figure 6 As shown, a lightning protection device 8 is also provided on the aluminum plate BIPV curtain wall, which includes: a voltage-equalizing ring 81, a fixing plate 82 and a flexible conductive copper cable 83. The voltage-equalizing ring 81 passes through each curtain wall main keel 3 from the top and bottom respectively, and is connected after being extended from the left and right sides to form a closed loop. The voltage-equalizing ring 81 is fixed to each curtain wall main keel 3 through the fixing plate 82. The upper curtain wall main keel 3 and the lower curtain wall main keel 3 are connected by the steel sleeve core 9, and then the two are connected by the flexible conductive copper cable 83. The current national standard for lightning protection devices stipulates that round steel with a diameter of 10mm is used as a voltage-equalizing ring, and the connecting plates at both ends of the lightning protection flexible conductive copper cable 83 are effectively connected to the aluminum plate and the lightning protection line 50. The upper and lower span distances and the left and right span distances of the voltage-equalizing ring 81 are preferably ≤10m.

[0044] like Figure 4 In the area of ​​≤10m×10m formed, a round steel equalizing ring with a diameter of 10mm is set to pass through the top, bottom, left and right. The equalizing ring is fixed to the main keel of the curtain wall through a stainless steel fixing plate. Then the upper and lower curtain wall main keels 3 are connected through the steel sleeve core 9, and then the pathway is connected through a flexible conductive copper cable. Finally, the lightning protection device is reliably connected to the building lightning rod and the lightning protection down conductor to form an effective pathway.

[0045] The thickness of the aluminum plate support frame 1 is ≥4mm. It is installed according to the requirements of the building partition design. The DC cable wiring plug 30 is reserved for the installation electrical series design. The aluminum plate support frame 1 is connected to the primary and secondary keels of the curtain wall through the aluminum alloy angle code 7. The separation gap is 20mm. After the curtain wall is installed, the cable 20 is connected in series. Only the DC cable 20 and the wiring plug 30 need to be connected through Figure 3 The 75mm×30mm threading hole 12 shown is hidden inside the aluminum curtain wall; it is filled with weather-resistant sealant and foam rod 40, sealed and covered with sealant, and the glue seam can reserve traces of wiring position identification. The wires are hidden and routed through the threading hole, and the back panel aluminum strip 60 is used to hide the DC cables 20, so as to achieve a beautiful effect on the inside.

[0046] In this utility model, the weight of the product is greatly reduced due to the hollowing out of the aluminum plate support frame and the combination of 5mm crystalline silicon double-glass photovoltaic panels. The reduction of load can effectively save the cost of the keel. The customized unique threading hole can set the junction box in a conventional position (under the board) without having to set it separately on the side. The exposed AC cables are fixed and beautified through the back plate aluminum strip, such as Figure 6 shown.

[0047] Anything not described in the present invention is applicable to the prior art.

[0048] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the present utility model.

Claims

1. An aluminum plate BIPV curtain wall, characterized in that: The invention comprises an aluminum plate support frame (1), a crystalline silicon double-glass photovoltaic panel (2), a curtain wall main keel (3) and a curtain wall secondary keel (4); the inner area enclosed by the aluminum plate support frame (1) is a curtain wall area (11); the curtain wall area (11) is formed with a hollow structure (a); the interior and edge positions of the curtain wall area (11) are coated with photovoltaic structural adhesive (5); the crystalline silicon double-glass photovoltaic panel (2) is pressed and fixed on the curtain wall area (11) by the photovoltaic structural adhesive (5); a threading hole (12) is provided on the side of the aluminum plate support frame (1) for passing a photovoltaic DC cable (20); the curtain wall main keel (3) and the curtain wall secondary keel (4) are connected vertically and horizontally to form a plurality of areas for placing the aluminum plate support frame (1).

2. The aluminum plate type BIPV curtain wall according to claim 1, characterized in that: The aluminum plate support frame (1) is a box-shaped structure formed by folding aluminum plates and having a central cavity. A lining plate (6) is provided in the curtain wall area (11) surrounded by the aluminum plate support frame (1), and a hollow structure (a) is formed on the lining plate (6). The aluminum plate support frame (1) is provided with interconnected threading holes (12) on two opposite outer sides.

3. The aluminum plate type BIPV curtain wall according to claim 2, characterized in that: The hollow structure (a) on the lining plate (6) is a plurality of cross structures.

4. The aluminum plate type BIPV curtain wall according to claim 1, characterized in that: The aluminum plate supporting frame (1) is connected to the curtain wall main keel (3) and the curtain wall secondary keel (4) via an aluminum alloy angle code (7).

5. The aluminum plate type BIPV curtain wall according to any one of claims 1 to 4, characterized in that: The crystalline silicon double-glass photovoltaic panel (2) is a double-layer glass without a frame.

6. The aluminum plate type BIPV curtain wall according to claim 1, characterized in that: The aluminum plate type BIPV curtain wall is also provided with a lightning protection device (8), which includes: a voltage equalizing ring (81), a fixing plate (82) and a flexible conductive copper cable (83). The voltage equalizing ring (81) passes through each of the curtain wall main keels (3) from the top and bottom respectively, and extends from the left and right sides and then connects to form a closed loop. The voltage equalizing ring (81) is fixed to each of the curtain wall main keels (3) through the fixing plate (82). After the upper curtain wall main keel (3) and the lower curtain wall main keel (3) are plugged in through the steel sleeve core (9), the two are connected through the flexible conductive copper cable (83).

7. The aluminum plate type BIPV curtain wall according to claim 6, characterized in that: The upper and lower span distance and the left and right span distance of the pressure equalizing ring (81) are ≤10m.

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