Building facade hidden frame photovoltaic curtain wall
The hidden-frame photovoltaic curtain wall design on the building facade solves the problem of integrating photovoltaics with buildings, achieving a close integration of photovoltaic modules with buildings. It has protective, sound insulation, heat insulation and thermal insulation functions. As the exterior surface layer of the building, it provides safety protection and an aesthetic appearance, and is easy to install and maintain.
Patent Information
- Application Number
- CN202520180998.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-05
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-02-05
AI Technical Summary
When existing photovoltaic systems are applied to buildings, they cannot be integrated with the building structure, affecting aesthetics. Furthermore, they do not take into account building performance aspects such as waterproofing and heat insulation, resulting in material waste and increased costs.
The building adopts a hidden frame photovoltaic curtain wall design, which integrates photovoltaic modules with the building wall through a support structure. It has protective, sound insulation, heat insulation and heat insulation functions, and serves as the exterior surface layer of the building, realizing the integration of design, manufacturing and installation.
It achieves a tight integration of photovoltaic modules with building walls, providing protection, sound insulation, heat insulation and thermal insulation functions. As an exterior cladding layer of the building, it provides safety protection and an aesthetically pleasing appearance, and is easy to install and maintain.
Smart Images
Figure CN223813843U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to photovoltaic curtain wall technical field, especially a building facade hidden frame photovoltaic curtain wall. BACKGROUND
[0002] The building roof and the surface that can receive enough sunlight in China are more than 12 billion square meters. If all the building surfaces are developed and utilized, about 2.5 trillion kilowatt hours of electricity can be generated annually, accounting for 30% of the current social electricity consumption. Making good use of the outer surface of the building, especially the building outer wall, and carrying out photovoltaic integration design, making it an important source of building electricity, will become an important content of the reconstruction of existing buildings.
[0003] At present, photovoltaic is mostly used in buildings by simple additional methods, which cannot realize the integration of photovoltaic and building, affect the overall aesthetic effect of the building, exist the problem of repeated construction on the surface of the building, seriously waste building materials, and do not consider the requirements of waterproofing, heat insulation and other building performance, indirectly increase the cost of photovoltaic building. Therefore, it is necessary to consider the photovoltaic building integration technology, which integrates multiple functions such as protection, sound insulation, heat preservation and heat insulation, ensures the aesthetic, safety and comfort of the building, helps the carbon emission of the construction industry, and supports the realization of the "double carbon" goal. SUMMARY
[0004] The utility model aims at overcoming the above-mentioned insufficient, provides a kind of building facade hidden frame photovoltaic curtain wall, realize the close combination of photovoltaic module and building wall, with protection, sound insulation, heat preservation and heat insulation function, while supplying electric power for building as the outer decorative layer of building, provide safety protection and the appearance of beautiful appearance, realize the integration of design, manufacture and installation.
[0005] To solve the above technical problems, the technical scheme adopted by the utility model is: a kind of building facade hidden frame photovoltaic curtain wall, including support structure, the support structure one side is connected with building structure layer, the support structure other side passes through inner layer insulation board and is connected with photovoltaic panel, the support structure includes first connecting part and second connecting part, first connecting part one end is fixedly connected with building structure layer, and other end is connected with one end of second connecting part;The photovoltaic panel includes moisture-proof air barrier, outer layer insulation board, photovoltaic frame, air layer, structural adhesive layer and photovoltaic module that are sequentially arranged from inside to outside;Second connecting part other end is connected with photovoltaic frame.
[0006] Preferably, the first connecting part includes a T-shaped steel, one end of the T-shaped steel is fixedly connected with the building structure layer by a first bolt.
[0007] Preferably, a bonding layer is provided between the inner layer insulation board and the building structure layer, and the bonding layer is internally provided with the support structure.
[0008] Preferably, the second connecting part comprises a Z-shaped steel, one end of the T-shaped steel is connected with one end of the Z-shaped steel through a second bolt, and the other end of the Z-shaped steel is connected with the photovoltaic panel.
[0009] Preferably, the Z-shaped steel is provided with a moisture-proof and vapor-proof layer, an outer thermal insulation board and a photovoltaic frame between two supporting plates of the Z-shaped steel.
[0010] Preferably, the photovoltaic frame is inserted and mounted between the end of the Z-shaped steel and the photovoltaic frame, the empty gap is filled with thermal insulation material, and the wire of the rigid crystalline silicon photovoltaic module is arranged in the cavity of the photovoltaic frame.
[0011] Preferably, the material of the inner thermal insulation board is XPS hard extruded polystyrene board or edge-sealed polyurethane sandwich board.
[0012] Preferably, the inner thermal insulation board is coated with moisture-proof and waterproof paint on the outer surface, and is staggered with the photovoltaic panel.
[0013] Preferably, the outer thermal insulation board is partially in contact with the inner surface of the photovoltaic module, the non-contact part forms an air layer, the photovoltaic frame is a polyurethane glass fiber hollow frame, and the photovoltaic frame provides support for the upper and lower edges of the photovoltaic module; the photovoltaic module is a rigid crystalline silicon photovoltaic module, which is composed of a photovoltaic back plate, a photovoltaic cell and a surface cover plate.
[0014] Preferably, the gap between the adjacent photovoltaic modules is filled with a sealing layer.
[0015] The utility model has the advantages of the following:
[0016] 1. The utility model discloses a building facade adopts the hidden frame design to make the appearance of component neat, beautiful, is applicable to the scene of appearance requirement is higher, the hidden frame design reduces the shadow effect of frame to component, and it has the functions of protection, sound insulation, thermal insulation and heat insulation, supplies the electric power for building as the outer veneer layer of building, provides the safe protection and the beautiful appearance, realizes the integration of design, manufacturing and installation.
[0017] 2. The utility model discloses the close combination of photovoltaic module and building wall, has the functions of protection, sound insulation, thermal insulation and heat insulation, and the photovoltaic module not only acts as a distributed power station and supplies photovoltaic electric power for building, but also acts as the outer veneer layer of building, provides the safe protection and the beautiful appearance, and the component unit is installed through the splicing mode, is convenient for separate dismounting and maintaining, and realizes the integration of design, manufacturing and installation. DRAWINGS
[0018] Figure 1 It is a kind of building facade hidden frame photovoltaic curtain wall structure schematic diagram. CONCRETE EMBODIMENT
[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0020] Example 1: As Figure 1 As shown, a hidden-frame photovoltaic curtain wall for building facades includes a support structure 1. One side of the support structure 1 is connected to the building structure layer 6, and the other side of the support structure 1 passes through the inner insulation board 2 and is connected to the photovoltaic panel 3. The support structure 1 includes a first connecting part 11 and a second connecting part 12. One end of the first connecting part 11 is fixedly connected to the building structure layer 6, and the other end is connected to one end of the second connecting part 12. The photovoltaic panel 3 includes a moisture-proof vapor barrier layer 31, an outer insulation board 32, a photovoltaic frame 33, an air layer 34, a structural adhesive layer 35, and a photovoltaic module 36 arranged sequentially from the inside to the outside. The other end of the second connecting part 12 is connected to the photovoltaic frame 33.
[0021] Preferably, the first connecting part 11 includes a T-shaped steel 111, one end of which is fixedly connected to the building structure layer 6 by a first bolt 112. In this embodiment, the T-shaped steel 111 is a T-shaped 8mm thick steel profile with a total size of 160×110×80mm. There are four first bolts 112, which are M8 bolts with a bolt length of 50mm. The T-shaped steel 111 is embedded in the bonding layer 5 between the inner core structural layer 5 and the inner insulation board 2 for reinforcement. The side of the T-shaped steel 111 that is close to the building structure layer 6 has a size of 160×110mm, and the part that is perpendicular to the building structure layer 6 has a size of 160×72mm. The four first bolts 112 are embedded in the building structure layer 6 on both the upper and lower sides of the T-shaped steel 111, connecting the T-shaped steel 111 and the building structure layer 6, and providing a stabilizing function.
[0022] Preferably, a bonding layer 5 is provided between the inner insulation board 2 and the building structure layer 6, and a support structure 1 is provided inside the bonding layer 5. The inner insulation board 2 is made of XPS rigid extruded polystyrene board or edge-sealed polyurethane sandwich board, with a thickness of 80mm, and plays an auxiliary supporting role for the photovoltaic panel 3. In this embodiment, the bonding layer 5 can be made of foamed polyurethane insulation material.
[0023] Preferably, the second connecting part 12 comprises a T-shaped steel 121, the other end of the T-shaped steel 111 is connected with one end of the T-shaped steel 121 through a second bolt 122, and the other end of the T-shaped steel 121 is connected with the photovoltaic panel 3. The T-shaped steel 121 is a "T" shaped steel profile with a total size of 120x86x48mm and a thickness of 6mm, and the second bolt 122 is two M8 bolts with a screw length of 17mm; the size of the T-shaped steel 121 perpendicular to the building structure layer 6 is 120x86mm, and the size of the T-shaped steel 121 parallel to the building structure layer 6, i.e. the part bearing the photovoltaic panel 3, is 120x48mm and 120x31mm respectively, and the size of the part parallel to the building structure layer 6 is slightly narrower at both ends and wider in the middle, which is used for clamping and mounting with the inner thermal insulation board 2 and the photovoltaic panel 3, and the two second bolts 122 are used for threadedly connecting the first connecting part 11 and the second connecting part 12.
[0024] Preferably, the two supporting plates of the T-shaped steel 121 are clamped with the moisture-proof and vapor-proof layer 31, the outer thermal insulation board 32 and the photovoltaic frame 33.
[0025] Preferably, the photovoltaic frame 33 is inserted and mounted between the end of the T-shaped steel 121, and the empty gap is filled with thermal insulation material, and the lead wire of the rigid crystalline silicon photovoltaic module 36 is placed in the internal cavity of the photovoltaic frame 33.
[0026] Preferably, the material of the inner thermal insulation board 2 is XPS hard extruded polystyrene board or edge-sealed polyurethane sandwich board.
[0027] Preferably, the inner thermal insulation board 2 is coated with moisture-proof and waterproof paint on the outer surface, and the photovoltaic panel 3 is arranged in staggered joints. In this way, the continuity of the thermal insulation material can be increased. In addition, the inner thermal insulation board 2 is filled with fireproof and thermal insulation material in the installation gap to reduce the exposed area of the building structure layer 6 and the supporting structure 1.
[0028] Preferably, the outer layer insulation board 32 is partially in contact with the inner surface of the photovoltaic assembly 36, and the non-contacting part forms an air layer 34. The photovoltaic frame 33 is a polyurethane fiberglass hollow frame, which provides support for the upper and lower edges of the photovoltaic assembly 36. The photovoltaic assembly 36 is a rigid crystalline silicon photovoltaic assembly, which is composed of a photovoltaic backboard 361, a photovoltaic cell 362, and a surface cover plate 363. The thickness of the outer layer insulation board 32 is 20 mm, and the interface is wavy. The outer layer insulation board 32 is partially in contact with the inner surface of the photovoltaic assembly 36, which increases the adhesion area of the photovoltaic assembly 36 and provides elastic support. The non-contacting part between the outer layer insulation board 32 and the photovoltaic assembly 36 forms an air layer 34, which is beneficial to reduce heat conduction and improve the insulation effect of the overall building structure. The photovoltaic frame 33 is a polyurethane fiberglass hollow frame, which is light and high-strength, has good weather resistance and fatigue resistance, and has good flame retardant performance. The cross-sectional size of the photovoltaic frame 33 is 11x21 mm, which provides support for the upper and lower edges of the photovoltaic assembly 36. The photovoltaic frame 33 is inserted and installed with the second connecting part 12, and the remaining gaps are filled with insulation materials. The internal cavity of the photovoltaic frame 33 is used to place the lead wire of the rigid crystalline silicon photovoltaic assembly 36, which is convenient for the construction of series and parallel circuits, protects the lead wire from external environment, realizes the hidden layout of electrical components, and improves the appearance and safety of the overall facade photovoltaic system. The material of the surface cover plate 363 is 3.3 mm super white tempered glass, which has good durability and high light transmittance.
[0029] Preferably, the sealing layer 4 is used to fill the gap between the adjacent photovoltaic assemblies 36. The sealing layer 4 is filled with foamed polyurethane insulation material, covered with a composite material, and then sealed with silicone sealant.
[0030] The embodiment realizes the close combination of photovoltaic assemblies and building walls, has the functions of protection, sound insulation, insulation, and heat insulation, and the photovoltaic assemblies not only act as distributed power stations to supply photovoltaic power to buildings, but also serve as the outer decorative layer of the building to provide safety protection and an aesthetic appearance. The component units are installed by splicing, which is convenient for individual disassembly and maintenance, and realizes the integration of design, manufacturing, and installation.
[0031] Embodiment 2: The difference between this embodiment and embodiment 1 is that the photovoltaic assembly 36 is a copper indium gallium selenide (CIGS) thin film photovoltaic cell assembly or a cadmium telluride (CdTe) thin film photovoltaic cell assembly, which is composed of two pieces of 3.2 mm super white float glass and a photovoltaic cell 362 to form a double-glass assembly structure. The installation density of the support structure 1, the specifications of the inner layer insulation board 2 and the photovoltaic frame 33 are adjusted according to the size of the photovoltaic assembly 36. The thin film photovoltaic has good light response, high weak light power generation efficiency, stable cell performance, and simple structure, which is suitable for color bright building facades or transparent enclosure structures or locations with building shading and poor orientation
[0032] Embodiment 3: The difference between this embodiment and Embodiment 1 is that the photovoltaic module 36 is a flexible crystalline silicon photovoltaic cell module, which is composed of a flexible photovoltaic cell sheet 362 and a glass cover plate, and the thickness interval is 2.5-3mm. The outer insulation board 32 in the photovoltaic panel 3 is 5mm thicker than that in Embodiments 1 and 2, the overall system thickness is consistent with other embodiments, and the heat preservation performance is enhanced. The flexible crystalline silicon photovoltaic has certain flexibility, high conversion efficiency and strong adaptability, and is suitable for curved buildings, irregularly shaped building surfaces and other places that take into account photovoltaic deformation and power generation efficiency
[0033] The above embodiments are only preferred technical solutions of the present application, and should not be regarded as limiting the present application. The protection scope of the present application should be based on the technical solutions claimed in the claims, including equivalent replacement schemes of the technical features claimed in the claims as the protection scope. That is, equivalent replacement improvements within this scope are also within the protection scope of the present application.
Claims
1. A hidden-frame photovoltaic curtain wall for building facades, comprising a supporting structure (1), one side of which is connected to a building structural layer (6), characterized in that: The other side of the support structure (1) passes through the inner insulation board (2) and is connected to the photovoltaic panel (3). The support structure (1) includes a first connecting part (11) and a second connecting part (12). One end of the first connecting part (11) is fixedly connected to the building structure layer (6), and the other end is connected to one end of the second connecting part (12). The photovoltaic panel (3) includes a moisture-proof vapor barrier layer (31), an outer insulation board (32), a photovoltaic frame (33), an air layer (34), a structural adhesive layer (35), and a photovoltaic module (36) arranged sequentially from the inside to the outside. The other end of the second connecting part (12) is connected to the photovoltaic frame (33).
2. The hidden-frame photovoltaic curtain wall for building facades according to claim 1, characterized in that: The first connecting part (11) includes a T-shaped steel (111), one end of which is fixedly connected to the building structure layer (6) by a first bolt (112).
3. A hidden-frame photovoltaic curtain wall for building facades according to claim 2, characterized in that: A bonding layer (5) is provided between the inner insulation board (2) and the building structure layer (6), and a support structure (1) is provided inside the bonding layer (5).
4. A hidden-frame photovoltaic curtain wall for building facades according to claim 2, characterized in that: The second connecting part (12) includes a T-shaped steel (121), the other end of which is connected to one end of the T-shaped steel (121) by a second bolt (122), and the other end of the T-shaped steel (121) is connected to the photovoltaic panel (3).
5. A hidden-frame photovoltaic curtain wall for building facades according to claim 4, characterized in that: The moisture-proof vapor barrier layer (31), the outer insulation board (32), and the photovoltaic frame (33) are snapped together between the two support plates of the I-beam (121).
6. A hidden-frame photovoltaic curtain wall for building facades according to claim 4, characterized in that: The photovoltaic frame (33) and the end of the steel (121) are connected by a plug-in joint and the gaps are filled with insulation material. The wires of the rigid crystalline silicon photovoltaic module (36) are placed in the cavity inside the photovoltaic frame (33).
7. A hidden-frame photovoltaic curtain wall for building facades according to claim 1, characterized in that: The inner insulation board (2) is made of XPS rigid extruded polystyrene board or edge-sealed polyurethane sandwich board.
8. A hidden-frame photovoltaic curtain wall for building facades according to claim 1, characterized in that: The inner insulation board (2) is coated with a moisture-proof and waterproof coating on its outer surface and is staggered with the photovoltaic panel (3).
9. A hidden-frame photovoltaic curtain wall for building facades according to claim 1, characterized in that: The outer insulation board (32) forms partial contact with the inner surface of the photovoltaic module (36), and the non-contact part forms an air layer (34). The photovoltaic frame (33) is a polyurethane glass fiber hollow frame, which provides support for the upper and lower edges of the photovoltaic module (36). The photovoltaic module (36) is a rigid crystalline silicon photovoltaic module, which consists of a photovoltaic backsheet (361), photovoltaic cells (362), and a surface cover plate (363).
10. A hidden-frame photovoltaic curtain wall for building facades according to claim 1, characterized in that: The gaps between adjacent photovoltaic modules (36) are filled with a sealing layer (4).