A unit type BIPV photovoltaic curtain wall

The photovoltaic curtain wall system, with its modular design and multi-layered sealing structure, solves the problems of lack of unified standard modules and poor sealing performance in existing photovoltaic curtain wall systems, achieving efficient installation and excellent sealing performance.

CN224678942UActive Publication Date: 2026-08-25SHANDONG HONGXING NEW MATERIAL TECH CO LTD
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Patent Information

Application Number
CN202521745673.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-18
Publication Date
2026-08-25
Estimated Expiration
2035-08-18

AI Technical Summary

Technical Problem

Existing photovoltaic curtain wall systems suffer from a lack of standardized modules due to their split design, inconsistent component sources leading to complex designs, and complex interfaces resulting in poor sealing and leakage risks.

Method used

The modular design integrates photovoltaic modules, insulation layers, sealing structures, and the mother-daughter joint frame into prefabricated units. Through standardized snap-fit ​​connections and multiple sealing structures, the units are precisely filled at the interfaces to form a robust sealing barrier.

Benefits of technology

The unified modular design of the photovoltaic curtain wall system has been realized, which simplifies the installation process, significantly improves the overall sealing and airtightness, and avoids the risk of leakage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to curtain wall technical field, concretely relates to a unit formula BIPV photovoltaic curtain wall, include: curtain wall frame, photovoltaic module, covering plate and thermal insulation layer, the curtain wall frame includes sub -mouth keel, female mouth keel, outer plate and inner plate, the sub -mouth keel and female mouth keel are arranged side by side, the sub -mouth keel and female mouth keel of adjacent unit formula BIPV photovoltaic curtain wall are engaged, the photovoltaic module includes photovoltaic board and two connecting components, the upper and lower ends of photovoltaic board are fixedly connected on the sub -mouth keel and female mouth keel through two connecting components, the covering plate is arranged in the gap between the connecting component of adjacent unit formula BIPV photovoltaic curtain wall, through the integration of photovoltaic module, thermal insulation layer, sealing structure and sub - female mouth keel frame into prefabricated unit, and adopts the standardized sub - female mouth engagement connection mode, the unified module problem that lacks because the component source of traditional separation type photovoltaic curtain wall is not one, interface is complicated leads to is solved thoroughly.
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Description

Technical Field

[0001] This utility model belongs to the field of curtain wall technology, specifically relating to a unitized BIPV photovoltaic curtain wall. Background Technology

[0002] With increasingly stringent requirements for building energy conservation and the growing popularity of renewable energy applications, Building Integrated Photovoltaics (BIPV) technology, as an important approach to organically integrating solar photovoltaic power generation with building envelope structures, has received widespread attention and development. Currently, most common photovoltaic curtain wall systems on the market employ a mainstream technical approach that attaches standard photovoltaic modules to traditional curtain wall systems using additional support structures and connectors. In this approach, the photovoltaic power generation system and the building envelope system are essentially designed and manufactured separately.

[0003] Firstly, the existing technology's discrete design leads to a lack of standardized modules in current photovoltaic curtain wall systems. Photovoltaic modules, supporting structures, connectors, and traditional curtain wall components often come from different systems, making it difficult to coordinate and unify their dimensions, specifications, and interface forms. This results in complex designs, poor component versatility, and difficulty in guaranteeing processing and installation accuracy, hindering large-scale production and efficient construction. Secondly, existing technologies suffer from complex system construction, involving the stacking of multiple components and complex interface treatments. The stacked installation of multiple components, such as photovoltaic modules, supporting frames, sealing layers, insulation layers, and the curtain wall structure itself, not only increases system complexity but also creates numerous potential leakage paths at component joints. Complex interfaces make it difficult to ensure long-term effective sealing, posing a significant risk of leakage that not only affects the building's functionality but may also threaten the building's structural safety and lifespan.

[0004] Therefore, it is necessary to study a unitized BIPV photovoltaic curtain wall that adopts a highly integrated modular design to fundamentally realize the modular unification of functions such as photovoltaic power generation, curtain wall enclosure, and thermal insulation, and has good overall sealing performance. Utility Model Content

[0005] To address the aforementioned shortcomings in existing technologies, this utility model provides a unitized BIPV photovoltaic curtain wall, which solves the technical problems of the lack of a unified standard module due to the separate design of existing technologies, as well as the poor overall sealing performance caused by the superposition of multiple components and complex interface processing.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A unitized BIPV photovoltaic curtain wall includes: a curtain wall frame, photovoltaic modules, a cover panel, and an insulation layer;

[0008] The curtain wall frame includes a sub-clamp, a female-clamp, an outer panel, and an inner panel. The sub-clamp and female-clamp are arranged side by side. The inner panel is fixedly connected to the end face of the sub-clamp and female-clamp near the wall. The outer panel is fixedly connected to the end face of the sub-clamp and female-clamp away from the wall. The sub-clamp and female-clamp of the adjacent unitized BIPV photovoltaic curtain wall are engaged.

[0009] The photovoltaic module includes a photovoltaic panel and two connecting components. The connecting components are fixedly connected to the end faces of the male and female keels away from the wall, respectively. The upper and lower ends of the photovoltaic panel are fixedly connected to the male and female keels through the two connecting components.

[0010] The cover plate is installed in the gap between the connecting components of adjacent unitized BIPV photovoltaic curtain walls;

[0011] The insulation layer is fixedly installed between the outer panel and the inner panel.

[0012] Furthermore, the connecting component includes an outer clip and an inner stop, the outer clip and the inner stop are fixedly connected, and the photovoltaic panel is fixed to the inner stop via the outer clip.

[0013] Furthermore, the sub-keel includes a support member a, a connector a, and a heat insulation strip a. The support member a is located on the side close to the wall. The support member a is fixedly connected to the connector a through the heat insulation strip a. The connector a is fixedly connected to the inner stop of the connecting assembly.

[0014] Furthermore, the female keel includes a support member b, a connector b, and a thermal insulation strip b. The support member b is located on the side close to the wall. The support member b is fixedly connected to the connector b through the thermal insulation strip b. The connector b is fixedly connected to the inner stop of the connecting assembly.

[0015] Furthermore, the curtain wall frame also includes a herringbone sealing strip, which is fixedly connected to the end face of the support member a near the photovoltaic module, and the herringbone sealing strip is pressed against the end face of the support member b away from the photovoltaic module.

[0016] Furthermore, the photovoltaic module also includes a sealing strip a, which is disposed between the connecting component and the photovoltaic panel.

[0017] Furthermore, the photovoltaic module also includes a 1-to-2 interface, which is connected to the photovoltaic panel.

[0018] Furthermore, the cover plate includes a foam rod, a sealing strip b, sealant, and a T-shaped decorative strip. The foam rod is disposed in the gap between the connecting components of adjacent unitized BIPV photovoltaic curtain walls and is located at the bottom of the gap. The sealing strip b is inserted into the gap. Sealant is provided between the foam rod and the sealing strip b. The T-shaped decorative strip is engaged with the sealing strip b.

[0019] Compared with the prior art, this utility model has the following advantages:

[0020] 1. This utility model discloses a unitized BIPV photovoltaic curtain wall, which integrates photovoltaic modules, insulation layers, sealing structures, and interlocking frame keel into prefabricated units and adopts a standardized interlocking connection method, completely solving the problem of lack of uniformity in modules caused by the inconsistent sources of components and complex interfaces in traditional separate photovoltaic curtain walls. The integrated unit design simplifies the on-site installation process, and the synergistic effect of the internal components and multiple sealing structures between units significantly improves the overall sealing performance, solving the leakage problem caused by the superposition of multiple components and complex interfaces.

[0021] 2. This utility model discloses a unitized BIPV photovoltaic curtain wall, which features multiple complementary sealing structures within the units and at the interfaces between units. At the gaps formed by the connecting components of adjacent units, the cover panel system sequentially uses foam rods, sealant, sealing strips (b), and T-shaped decorative tape for precise filling and sealing, forming a second, robust sealing barrier. Through this multi-layered, multi-material synergistic sealing design, water vapor penetration is effectively prevented, significantly improving the overall water tightness and air tightness of the curtain wall system. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle;

[0024] Figure 3 for Figure 1 Enlarged structural diagram at point B;

[0025] Figure 4 The connection relationship between adjacent unitized BIPV photovoltaic curtain walls is shown;

[0026] Figure 5 for Figure 4 Enlarged structural diagram at point C.

[0027] The reference numerals used in the attached figures are as follows:

[0028] 1. Curtain wall frame; 11. Female keel; 111. Support component a; 112. Connector a; 113. Thermal insulation strip a; 12. Female keel; 121. Support component b; 122. Connector b; 123. Thermal insulation strip b; 13. Herringbone sealing strip; 14. Outer panel; 15. Inner panel; 2. Photovoltaic module; 21. Photovoltaic panel; 22. Outer clamp; 23. Inner retainer; 24. Sealing strip a; 25. One-to-two interface; 3. Covering plate; 31. Foam rod; 32. Sealing strip b; 33. Sealant; 34. T-shaped decorative strip; 4. Insulation layer. Detailed Implementation

[0029] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0030] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0031] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0032] Please see Figures 1 to 5 As shown, a unitized BIPV photovoltaic curtain wall includes: a curtain wall frame 1 for support and fixation, photovoltaic modules 2 for photovoltaic power generation, a cover plate 3 for gaps between adjacent unitized BIPV photovoltaic curtain walls, and an insulation layer 4 for improving thermal insulation performance.

[0033] The curtain wall frame 1 includes a sub-clamp 11, a female-clamp 12, an outer panel 14, and an inner panel 15. The sub-clamp 11 and the female-clamp 12 are arranged side by side. Specifically, the sub-clamp 11 includes a support member a111, a connector a112, and a thermal insulation strip a113. The support member a111 is located on the side closest to the wall. The support member a111 is fixedly connected to the connector a112 through the thermal insulation strip a113. The connector a112 is fixedly connected to the inner stop member 23 of the connecting assembly.

[0034] The inner panel 15 is fixedly connected to the end face of the sub-clamp 11 and the female-clamp 12 near the wall, and the outer panel 14 is fixedly connected to the end face of the sub-clamp 11 and the female-clamp 12 away from the wall. The sub-clamp 11 and the female-clamp 12 of the adjacent unitized BIPV photovoltaic curtain wall are engaged.

[0035] It should be noted that the support member a111 and connector a112 of the sub-clamp 11 have protrusions on the end faces away from the female clamp 12, and the support member b121 and connector b122 of the female clamp 12 have grooves on the end faces away from the sub-clamp 11. When adjacent unitized BIPV photovoltaic curtain walls are connected to each other, the protrusions on the support member a111 cooperate with the grooves on the support member b121, and the protrusions on the connector a112 cooperate with the grooves on the connector b122, so that the sub-clamp 11 and female clamp 12 on adjacent unitized BIPV photovoltaic curtain walls can be interlocked.

[0036] Preferably, the female keel 12 includes a support member b121, a connector b122 and a heat insulation strip b123. The support member b121 is located on the side close to the wall. The support member b121 is fixedly connected to the connector b122 through the heat insulation strip b123. The connector b122 is fixedly connected to the inner stop member 23 of the connecting assembly.

[0037] The curtain wall frame 1 also includes a herringbone sealing strip 13, which is fixedly connected to the end face of the support member a111 on the side close to the photovoltaic module 2. The herringbone sealing strip 13 is pressed and engaged with the end face of the support member b121 on the side away from the photovoltaic module 2, further improving the overall sealing performance.

[0038] The photovoltaic module 2 includes a photovoltaic panel 21 and two connecting components. Each connecting component includes an outer clamp 22 and an inner stop 23. The connecting components are fixedly connected to the end faces of the female and male keels 12 away from the wall, respectively. The upper and lower ends of the photovoltaic panel 21 are fixedly connected to the female and male keels 11 and 12, respectively, via the two connecting components. Specifically, the connecting components include an outer clamp 22 and an inner stop 23, with the outer clamp 22 and inner stop 23 fixedly connected. The photovoltaic panel 21 is fixed to the inner stop 23 via the outer clamp 22. Correspondingly, the photovoltaic module 2 also includes a one-to-two splitter interface 25, which is connected to the photovoltaic panel 21.

[0039] Specifically, the photovoltaic module 2 also includes a sealing strip a24, which is disposed between the connecting component and the photovoltaic panel 21.

[0040] The cover plate 3 is installed in the gap between the connecting components of adjacent unitized BIPV photovoltaic curtain walls.

[0041] Specifically, the cover plate 3 includes a foam rod 31, a sealing strip b32, sealant 33, and a T-shaped decorative strip 34. The foam rod 31 is disposed in the gap between the connecting components of adjacent unitized BIPV photovoltaic curtain walls, located at the bottom of the gap. The sealing strip b32 is inserted into the gap. It should be noted that the foam rod 31 is press-fitted with the inner retaining members 23 of the two unitized BIPV photovoltaic curtain walls, and the sealing strip b32 is press-fitted with the outer retaining members 22 of the two unitized BIPV photovoltaic curtain walls. Sealant 33 is provided between the foam rod 31 and the sealing strip b32, and the T-shaped decorative strip 34 is engaged with the sealing strip b32.

[0042] It should be noted that the end face of the T-shaped decorative strip 34 away from the sealing strip b32 is flush with the end face of the outer clip 22 away from the inner stop 23.

[0043] The insulation layer 4 is fixedly disposed between the outer panel 14 and the inner panel 15. Preferably, the insulation layer 4 is made of materials such as rock wool board or vacuum insulation board.

[0044] The above descriptions are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are knowledgeable of all existing technologies in that field, and possess the ability to apply conventional experimental methods prior to that date. Therefore, those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in conjunction with their own capabilities. Typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.

Claims

1. A unitized BIPV photovoltaic curtain wall, characterized in that, include: Curtain wall frame (1), photovoltaic modules (2), cover plate (3) and insulation layer (4); The curtain wall frame (1) includes a sub-clamp (11), a female-clamp (12), an outer panel (14), and an inner panel (15). The sub-clamp (11) and the female-clamp (12) are arranged side by side. The inner panel (15) is fixedly connected to the end face of the sub-clamp (11) and the female-clamp (12) on the side close to the wall. The outer panel (14) is fixedly connected to the end face of the sub-clamp (11) and the female-clamp (12) on the side away from the wall. The sub-clamp (11) and the female-clamp (12) of the adjacent unitized BIPV photovoltaic curtain wall are engaged. The photovoltaic module (2) includes a photovoltaic panel (21) and two connecting components. The connecting components are fixedly connected to the end faces of the female keel (11) and the male keel (12) away from the wall. The upper and lower ends of the photovoltaic panel (21) are fixedly connected to the female keel (11) and the male keel (12) respectively through the two connecting components. The cover plate (3) is installed in the gap between the connecting components of adjacent unitized BIPV photovoltaic curtain walls; The insulation layer (4) is fixedly disposed between the outer panel (14) and the inner panel (15).

2. The unitized BIPV photovoltaic curtain wall according to claim 1, characterized in that: The connection assembly includes an outer clip (22) and an inner stop (23). The outer clip (22) and the inner stop (23) are fixedly connected. The photovoltaic panel (21) is fixed on the inner stop (23) through the outer clip (22).

3. A unitized BIPV photovoltaic curtain wall according to claim 2, characterized in that: The sub-keel (11) includes a support member a (111), a connector a (112), and a heat insulation strip a (113). The support member a (111) is located on the side close to the wall. The support member a (111) is fixedly connected to the connector a (112) through the heat insulation strip a (113). The connector a (112) is fixedly connected to the inner stop (23) of the connecting assembly.

4. A unitized BIPV photovoltaic curtain wall according to claim 3, characterized in that: The female keel (12) includes a support member b (121), a connector b (122) and a heat insulation strip b (123). The support member b (121) is located on the side close to the wall. The support member b (121) is fixedly connected to the connector b (122) through the heat insulation strip b (123). The connector b (122) is fixedly connected to the inner stop (23) of the connecting assembly.

5. A unitized BIPV photovoltaic curtain wall according to claim 4, characterized in that: The curtain wall frame (1) also includes a fishbone sealing strip (13), which is fixedly connected to the end face of the support member a (111) on the side close to the photovoltaic module (2), and the fishbone sealing strip (13) is pressed and fitted with the end face of the support member b (121) on the side away from the photovoltaic module (2).

6. A unitized BIPV photovoltaic curtain wall according to claim 1, characterized in that: The photovoltaic module (2) also includes a sealing strip a (24), which is disposed between the connecting component and the photovoltaic panel (21).

7. A unitized BIPV photovoltaic curtain wall according to claim 1, characterized in that: The photovoltaic module (2) also includes a one-to-two interface (25), which is connected to the photovoltaic panel (21).

8. A unitized BIPV photovoltaic curtain wall according to claim 1, characterized in that: The cover plate (3) includes a foam rod (31), a sealing strip b (32), sealant (33), and a T-shaped decorative strip (34). The foam rod (31) is set in the gap between the connecting components of adjacent unitized BIPV photovoltaic curtain walls and is located at the bottom of the gap. The sealing strip b (32) is stuck in the gap. Sealant (33) is provided between the foam rod (31) and the sealing strip b (32). The T-shaped decorative strip (34) is engaged with the sealing strip b (32).