Photovoltaic integrated curtain wall unit and curtain wall

Abstract

This utility model discloses a photovoltaic integrated curtain wall unit and curtain wall, belonging to the field of curtain wall technology. The photovoltaic integrated curtain wall unit includes a frame, connecting columns, photovoltaic modules, louver components, and mounting components. The connecting columns are disposed within the frame, forming two parallel mounting positions with the inner wall of the frame. The photovoltaic modules are fixedly installed in one mounting position, with their power-generating surfaces facing the front of the frame. The louver components are fixedly installed in the other mounting position. The mounting components are located at the rear end of the frame and are used to attach and fix the frame to the main building structure. This utility model can guide cooler, fresh air through the louver components, thereby autonomously forming efficient heat dissipation ducts under different environmental conditions. This continuously removes waste heat generated during photovoltaic module operation, significantly reducing the operating temperature of the photovoltaic panels, effectively improving power generation efficiency, and extending service life.

Description

Technical Field

[0001] This utility model relates to the field of curtain wall technology, and in particular to a photovoltaic integrated curtain wall unit and curtain wall. Background Technology

[0002] With the popularization of green building concepts and the increasing requirements for energy conservation and emission reduction, building-integrated photovoltaics (BIPV) has become an important direction for modern building development. Integrating photovoltaic systems into the building envelope, especially the curtain wall facade, can not only utilize abundant vertical solar resources to generate electricity but also replace traditional building materials, achieving a balance between functionality and aesthetics.

[0003] However, the photoelectric conversion efficiency of photovoltaic panels is significantly negatively correlated with operating temperature; as temperature increases, efficiency drops sharply. For curtain wall photovoltaic systems, ventilation conditions on building facades are generally far inferior to those on roofs. Poor air circulation makes it difficult for heat to dissipate effectively, further exacerbating the temperature rise problem of photovoltaic panels. This not only severely limits the potential for improving the power generation performance of curtain wall photovoltaic systems but also negatively impacts their long-term stable operation reliability. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a photovoltaic integrated curtain wall unit that can improve the power generation efficiency of the curtain wall photovoltaic system and ensure the long-term stable operation of the system.

[0005] This utility model also proposes a photovoltaic integrated curtain wall.

[0006] According to an embodiment of the present utility model, a photovoltaic integrated curtain wall unit includes: a frame; a connecting column disposed within the frame, the connecting column and the inner wall of the frame forming two side-by-side mounting positions; a photovoltaic module fixedly installed in one of the mounting positions, the power generation surface of the photovoltaic module facing the front of the frame, and a first cavity at the rear of the photovoltaic module; a louver module fixedly installed in the other mounting position, the rear end of the louver module having a second cavity; a mounting component disposed at the rear end of the frame, the mounting component being used to hang and fix the frame to the main structure of the building; a first through hole is opened at the top of the connecting column, and a second through hole is opened at the bottom of the connecting column, both the first through hole and the second through hole being located at the rear end of the connecting column, the first through hole and the second through hole being used to connect the first cavity and the second cavity.

[0007] The system offers at least the following advantages: The connecting column is located inside the frame, forming two parallel mounting positions with the inner wall of the frame. A photovoltaic module is fixedly installed in one of these positions, with its power-generating surface facing the front of the frame to receive solar radiation; the louvered module is fixedly installed in the other adjacent mounting position. The mounting assembly is located at the rear of the frame, used to attach and fix the entire curtain wall unit to the building's main structure, enabling rapid installation and integration. The top of the connecting column has a first through-hole connecting the first and second cavities, and the bottom of the connecting column has a second through-hole also connecting the first and second cavities. Thus, when the photovoltaic module operates, it generates heat, heating the air in the first cavity on its back. The hot air in the first cavity rises and flows through the first through-hole at the top of the connecting column towards the louvered module side. Simultaneously, the rising airflow in the first cavity creates a negative pressure at the bottom of the photovoltaic module, drawing air from the bottom of the louvered module side through the second through-hole at the bottom of the connecting column, forming a continuous self-circulating ventilation loop. This continuously removes the waste heat generated by the photovoltaic module during operation, reducing the operating temperature of the photovoltaic panel, effectively improving power generation efficiency and extending its service life.

[0008] According to some embodiments of the present invention, a back plate is also included, which is disposed on the frame and located behind the photovoltaic module and the louver module.

[0009] According to some embodiments of this utility model, a mosquito net is provided to cover the second through hole.

[0010] According to some embodiments of the present invention, the installation component includes at least two hooking units, which are arranged on the frame in a left-right direction. The hooking units are used to hook onto the main structure of the building.

[0011] According to some embodiments of the present invention, the hanging unit includes: a first supporting cantilever fixedly disposed at the rear end of the frame, the first supporting cantilever extending rearward from the frame; a second supporting cantilever fixedly disposed at the rear end of the frame, the second supporting cantilever extending rearward from the frame, the second supporting cantilever located on one side of the first supporting cantilever, the end of the second supporting cantilever bent towards the side closer to the first supporting cantilever to form a hook portion, a snap-fit ​​notch forming between the hook portion and the first supporting cantilever, the snap-fit ​​notch being used to accommodate matching hanging parts on the main structure of the building.

[0012] According to some embodiments of the present invention, the louver assembly includes: two mounting brackets, one mounting bracket being disposed on a connecting column and the other mounting bracket being disposed on a frame; and multiple louver units, the louver units being connected between the two mounting brackets and the multiple louver units being evenly distributed along the vertical direction.

[0013] According to some embodiments of this utility model, a gasket is provided between the louver unit and the mounting bracket.

[0014] According to some embodiments of this utility model, the height of the frame is greater than the width of the frame.

[0015] According to some embodiments of this utility model, the back panel is a decorative board or a functional board.

[0016] The photovoltaic integrated curtain wall according to the second aspect of the present invention includes the photovoltaic integrated curtain wall unit described in the first aspect of the present invention.

[0017] It has at least the following beneficial effects: This photovoltaic integrated curtain wall has all the beneficial effects brought about by the above-mentioned photovoltaic integrated curtain wall unit, which will not be repeated here.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0020] Figure 1 This is a structural schematic diagram of the photovoltaic integrated curtain wall unit according to an embodiment of the present invention;

[0021] Figure 2 for Figure 1 Rear view diagram;

[0022] Figure 3 for Figure 1 Schematic diagram of the central connecting column;

[0023] Figure 4 for Figure 1 Schematic diagram of the structure of the louvered unit;

[0024] Figure 5 for Figure 1 A schematic diagram of the structure of the installed components.

[0025] Icon labels:

[0026] Frame 1;

[0027] Connecting post 2, first through hole 21, second through hole 22, mosquito net 23;

[0028] Photovoltaic module 3;

[0029] 4. Louver assembly; 41. Mounting bracket; 42. Louver unit; 43. Gasket;

[0030] Mounting component 5, hook unit 51, first support cantilever 511, second support cantilever 512, hook part 513;

[0031] Back panel 6. Detailed Implementation

[0032] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0033] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features or the order of the technical features.

[0034] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0035] Reference Figure 1 This utility model discloses a photovoltaic integrated curtain wall unit and curtain wall, including a frame 1, connecting columns 2, photovoltaic modules 3, louver modules 4, and mounting components 5. The connecting columns 2 are disposed within the frame 1, forming two side-by-side mounting positions with the inner wall of the frame 1. The photovoltaic modules 3 are fixedly installed in one of the mounting positions, with their power-generating surfaces facing the front of the frame 1 and a first cavity at their rear. The louver modules 4 are fixedly installed in the other mounting position, with a second cavity at their rear end. The mounting components 5 are disposed at the rear end of the frame 1 and are used to attach and fix the frame 1 to the main building structure. The connecting columns 2 have a first through hole 21 at their top and a second through hole 22 at their bottom, both located at the rear end of the connecting columns 2, and connect the first cavity and the second cavity.

[0036] like Figure 1As shown, the connecting column 2 is located inside the frame 1, forming two side-by-side mounting positions together with the inner wall of the frame 1. The photovoltaic module 3 is fixedly installed in one of the mounting positions, with its power-generating surface facing the front of the frame 1 to receive solar radiation; the louver module 4 is fixedly installed in the other adjacent mounting position. The mounting assembly 5 is located at the rear end of the frame 1, used to hang and fix the entire curtain wall unit to the main building structure, achieving rapid installation and integration. The top of the connecting column 2 has a first through hole 21 that connects the first cavity and the second cavity, and the bottom of the connecting column 2 has a second through hole 22 that also connects the first cavity and the second cavity. Therefore, when the photovoltaic module 3 is working, it generates heat and heats the air in the first cavity on its back. The hot air in the first cavity rises and flows to the side of the louvered module 4 through the first through hole 21 at the top of the connecting column 2. At the same time, the bottom of the photovoltaic module 3 forms a negative pressure due to the rising airflow in the first cavity, which then draws air from the bottom of the louvered module 4 through the second through hole 22 at the bottom of the connecting column 2, forming a continuous self-circulating ventilation loop. This continuously removes the waste heat generated when the photovoltaic module 3 is working, reduces the working temperature of the photovoltaic panel, effectively improves power generation efficiency, and extends service life.

[0037] It should be noted that the photovoltaic module 3 adopts a standardized crystalline silicon solar panel encapsulation structure, which has good structural strength and weather resistance. Multiple modules can be connected in series and parallel through its dedicated electrical interface, and the generated electrical energy is finally transmitted to the building electrical system. Its working principle and structure will not be described in detail here.

[0038] like Figure 3 As shown, in a specific embodiment of this utility model, mounting chambers with slots are pre-set on both sides of the connecting column 2, and mounting chambers with slots are pre-set on the inner edge of the frame 1. The upper, lower, and left edges of the photovoltaic module 3 are embedded in the corresponding mounting chambers of the frame 1 through the surrounding aluminum alloy frame. The right edge is screwed into the corresponding slot on the left side of the connecting column 2 by a self-tapping screw through the pre-drilled hole in the aluminum alloy frame. At the same time, a EPDM rubber sealing strip is set at the joint to ensure water tightness. The left mounting bracket 41 of the louver module 4 is fixedly connected to the corresponding slot on the right side of the connecting column 2 by stainless steel bolts, and the right mounting bracket 41 is embedded in the corresponding mounting chamber on the right side of the frame 1 to achieve quick assembly. The installation method of the photovoltaic module 3 and the louver module 4 with the frame 1 is a conventional technical means, and its working principle and structure will not be further described here.

[0039] In some specific embodiments of this utility model, a back plate 6 is also included. The back plate 6 is disposed on the frame 1 and is located behind the photovoltaic module 3 and the louvered module 4. Figure 2 As shown, the back panel 6 is set inside the frame 1. The back panel 6 is located behind the photovoltaic module 3 and the louver module 4, forming a complete back-closed structure of the curtain wall unit.

[0040] It should be noted that the back panel 6 can be made of various materials to meet different architectural needs. When decorative panels such as decorative glass are used, they can provide a clean and aesthetically pleasing interior surface for the building facade, while maintaining the transparency and modern feel of the interior. When thermal insulation panels such as rock wool panels or polyurethane composite panels are used, the thermal performance of the curtain wall unit can be effectively improved, reducing building energy consumption and enabling the system to generate electricity while having excellent building energy-saving effects. When sound insulation panels are used, the acoustic performance of the curtain wall can be significantly enhanced, providing a quiet and comfortable indoor environment for the building.

[0041] Specifically, the back panel 6 can be connected to the frame 1 by means of bolt fixing, snap-fit ​​connection, etc.

[0042] Specifically, the back panel 6 can be manufactured with the frame 1 through an integrated molding process to form a composite structure with high structural strength and good sealing performance.

[0043] In some specific embodiments of this utility model, a mosquito net 23 is provided to cover the opening of the second through hole 22. Specifically, the mosquito net 23 is woven from stainless steel or weather-resistant engineering plastic. Its mesh size ensures unobstructed airflow while effectively preventing mosquitoes, willow catkins, and other small debris from entering the internal cavity of the curtain wall unit. The edges of the mosquito net 23 are sealed and fixed to the edges of the holes in the connecting column 2 by waterproof adhesive or clips, which prevents the net from falling off and avoids rainwater seeping in through the installation gaps.

[0044] In some specific embodiments of this utility model, the installation component 5 includes at least two hooking units 51, which are arranged on the frame 1 in the left-right direction. The hooking units 51 can be precisely aligned and firmly engaged with the matching hooks pre-installed on the main structure of the building.

[0045] In some specific embodiments of this utility model, the hanging unit 51 includes: a first supporting cantilever 511, which is fixedly disposed at the rear end of the frame 1 and extends rearward from the frame 1; a second supporting cantilever 512, which is fixedly disposed at the rear end of the frame 1 and extends rearward from the frame 1. The second supporting cantilever 512 is located on one side of the first supporting cantilever 511, and the end of the second supporting cantilever 512 is bent toward the side closer to the first supporting cantilever 511 to form a hook portion 513. A snap-fit ​​notch is formed between the hook portion 513 and the first supporting cantilever 511. The snap-fit ​​notch is used to accommodate the matching hanging parts on the main structure of the building.

[0046] like Figure 5As shown, in some specific embodiments of this utility model, the first support cantilever 511, the second support cantilever 512, and the hook portion 513 all extend vertically and their heights are equal to those of the frame 1. The first support cantilever 511 is fixedly connected to the back of the frame 1 with its front end and extends horizontally backward. Similarly, the second support cantilever 512 is fixed to the frame 1 with its front end and extends backward parallel to the first support cantilever 511, with a greater extension depth than the first support cantilever 511. The hook portion 513 is located at the distal end of the rearward extension of the second support cantilever 512. The hook portion 513 is horizontally arranged in the left-right direction and extends in a cantilever form towards the first support cantilever 511, thereby forming a locking notch with a specific constraint function between the first support cantilever 511 and the hook portion 513.

[0047] It should be noted that the snap-fit ​​notch perfectly accommodates the pre-installed mounting brackets on the main building structure. When the curtain wall unit is installed, this snap-fit ​​notch and the building brackets form a precise interlocking relationship, achieving a reliable connection through mechanical interlocking. Specifically, during the actual installation process, vertically extending installation grooves are pre-cut on the vertical columns of the main building structure, and load-bearing support frames are installed on the corresponding horizontal beams. During installation, the curtain wall unit is first placed stably on the support frame of the beam. At this time, the unit obtains stable temporary fixation and initial height positioning through the bottom support. Then, through horizontal fine-tuning, the curtain wall unit is moved laterally, so that the hook part 513 on its side is precisely embedded into the vertical groove of the column. Finally, the clamping component is used to firmly lock the curtain wall unit to the column, thus completing the installation and fixing of the entire unit. This installation method, through the synergistic effect of bottom support and lateral hooking, ensures the stability and safety of the installation process, and achieves rapid and accurate positioning and connection, significantly improving construction efficiency. It should be noted that the installation method of the curtain wall unit is a conventional technical means, and its working principle and structure will not be elaborated further here.

[0048] In some specific embodiments of this utility model, the louver assembly 4 includes: two mounting brackets 41 and multiple louver units 42, one mounting bracket 41 is disposed on the connecting column 2, and the other mounting bracket 41 is disposed on the frame 1; the louver units 42 are connected between the two mounting brackets 41, and the multiple louver units 42 are evenly distributed in the up-down direction.

[0049] like Figure 4 As shown, one mounting bracket 41 is fixedly connected to the connecting column 2 inside the frame 1, while the other mounting bracket 41 is directly fixed to the corresponding inner side wall of the frame 1. The two mounting brackets 41 are parallel to each other and maintain a preset distance. The louver units 42 are inclined and multiple louver units 42 are evenly distributed vertically between the two mounting brackets 41, thus forming a neatly arranged louver array, laying the structural foundation for achieving precise ventilation and shading adjustment.

[0050] It should be further explained that in some other specific embodiments of this utility model, each louver unit 42 is rotatably connected to two mounting brackets 41 at both ends via a rotating shaft. A micro drive motor can be integrated inside the frame 1. The rotating shafts of each louver unit 42 are connected in series and connected to the drive motor through a transmission mechanism to form an intelligent adjustment system. Thus, through motor drive, the angle of the louver blades can be precisely controlled and automatically adjusted. This can guide the airflow to accelerate along the back surface of the photovoltaic module 3 to enhance the convective heat transfer efficiency, and can also fully unfold when necessary to maximize the ventilation cross-sectional area. While dissipating heat, it maintains the functions of shading and guiding light, improving the light and heat comfort environment inside the building.

[0051] In some specific embodiments of this utility model, a gasket 43 is also provided between the louver unit 42 and the mounting bracket 41. To further improve the assembly accuracy and operational stability of the louver assembly 4, a gasket 43 is also provided at the connection between the louver unit 42 and the mounting bracket 41. The gasket 43 is located between the louver unit 42 and the mounting bracket 41, and its thickness compensates for manufacturing tolerances, ensuring that all louver units 42 maintain consistent positioning and gap control.

[0052] In some specific embodiments of this utility model, the height of the frame 1 is greater than the width of the frame 1. For example... Figure 1 As shown, the height of frame 1 extends vertically, and the width of frame 1 extends horizontally. In some specific embodiments of this utility model, frame 1 adopts a vertically extending rectangular outline, with its height dimension greater than its width dimension, forming a longitudinally elongated structural form. On the one hand, this height-to-width ratio design makes the curtain wall unit present a slender visual effect on the facade, which is in line with the vertical line aesthetics pursued by modern architecture; on the other hand, when the photovoltaic module 3 is working, the heat generated by the photovoltaic module 3 heats the air in the cavity behind it. The hot air rises naturally due to its lower density. Since the frame 1 adopts a vertical height greater than its width, this provides a chimney-like vertical channel for the hot air to rise, greatly enhancing the driving force of thermal pressure ventilation, thereby continuously replenishing it with cooler outdoor air.

[0053] Secondly, this utility model embodiment provides a photovoltaic integrated curtain wall, applied to a photovoltaic integrated curtain wall unit, including multiple photovoltaic integrated curtain wall units. These units are modularly integrated onto the surface of the building's main structure, forming an intelligent building envelope system that combines power generation, heat dissipation, shading, and building enclosure functions. Specifically, the multiple curtain wall units can be arranged in diverse ways according to the design requirements of the building facade. For example, they can be arranged in a matrix pattern, stacked vertically to form a continuous curtain wall facade, while being tightly spliced ​​horizontally to form a complete building skin, thereby maximizing the photovoltaic coverage of the building's exterior walls; or, they can be arranged in a vertical strip pattern, forming a longitudinal light strip along the building's height, enhancing the building's vertical aesthetic; or, they can be arranged in a horizontal strip pattern, extending horizontally on specific floors of the building to form a decorative photovoltaic ring surrounding the building.

[0054] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A photovoltaic integrated curtain wall unit, characterized in that, include: Frame (1); A connecting column (2) is set inside the frame (1), and the connecting column (2) and the inner wall of the frame (1) enclose two mounting positions arranged side by side; A photovoltaic module (3) is fixedly installed in one of the mounting positions, with the power generation surface of the photovoltaic module (3) facing the front of the frame (1), and a first cavity at the rear of the photovoltaic module (3); A louver assembly (4) is fixedly installed in another of the aforementioned mounting positions, the rear end of the louver assembly (4) having a second cavity; An installation component (5) is provided at the rear end of the frame (1), and the installation component (5) is used to hang and fix the frame (1) to the main structure of the building. The top of the connecting post (2) is provided with a first through hole (21), and the bottom of the connecting post (2) is provided with a second through hole (22). The first through hole (21) and the second through hole (22) are both located at the rear end of the connecting post (2). The first through hole (21) and the second through hole (22) are used to connect the first cavity and the second cavity.

2. The photovoltaic integrated curtain wall unit according to claim 1, characterized in that, It also includes a back panel (6), which is disposed on the frame (1) and located behind the photovoltaic module (3) and the louvered module (4).

3. The photovoltaic integrated curtain wall unit according to claim 1, characterized in that, The second through hole (22) is covered with a mosquito net (23).

4. The photovoltaic integrated curtain wall unit according to claim 1, characterized in that, The installation component (5) includes at least two hooking units (51), which are arranged on the frame (1) in the left-right direction. The hooking units (51) are used to hook onto the main structure of the building.

5. The photovoltaic integrated curtain wall unit according to claim 4, characterized in that, The mounting unit (51) includes: The first support cantilever (511) is fixedly disposed at the rear end of the frame (1), and the first support cantilever (511) extends rearward from the frame (1); The second support cantilever (512) is fixedly installed at the rear end of the frame (1). The second support cantilever (512) extends rearward from the frame (1) and is located on one side of the first support cantilever (511). The end of the second support cantilever (512) is bent towards the side closer to the first support cantilever (511) to form a hook portion (513). A snap-fit ​​notch is formed between the hook portion (513) and the first support cantilever (511). The snap-fit ​​notch is used to accommodate the matching hangers on the main structure of the building.

6. The photovoltaic integrated curtain wall unit according to claim 1, characterized in that, The louver assembly (4) includes: Two mounting brackets (41), one of which is mounted on the connecting post (2), and the other of which is mounted on the frame (1); Multiple louver units (42) are connected between two mounting brackets (41) and are evenly distributed in the vertical direction.

7. The photovoltaic integrated curtain wall unit according to claim 6, characterized in that, A gasket (43) is provided between the louver unit (42) and the mounting bracket (41).

8. The photovoltaic integrated curtain wall unit according to claim 1, characterized in that, The height of the frame (1) is greater than the width of the frame (1).

9. The photovoltaic integrated curtain wall unit according to claim 2, characterized in that, The back panel (6) is a decorative board or a functional board.

10. A photovoltaic integrated curtain wall, characterized in that, It includes multiple photovoltaic integrated curtain wall units as described in any one of claims 1 to 9.

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