WO2023179363A1

WO2023179363A1 - Curtain wall unit, photovoltaic curtain wall, and building

Info

Publication number: WO2023179363A1
Application number: PCT/CN2023/080286
Authority: WO
Inventors: 单康康; 张松; 王申存
Original assignee: 隆基乐叶光伏科技有限公司
Priority date: 2022-03-23
Filing date: 2023-03-08
Publication date: 2023-09-28
Also published as: CN114658148A

Abstract

A curtain wall unit, a photovoltaic curtain wall, and a building, relating to the technical field of photovoltaic curtain walls, and for solving the problems that a photovoltaic module cannot be easily installed in an interlayer position of a non-wall body of a building, standardizing wiring, and improving an attractiveness degree. The photovoltaic curtain wall comprises a plurality of curtain wall units (10) which are electrically connected together; each curtain wall unit (10) comprises a bearing frame; each bearing frame comprises a photovoltaic bearing frame (11) and a light-transmitting bearing frame (12); the light-transmitting bearing frame (12) is provided with a light-transmitting layer (20); the photovoltaic bearing frame (11) is provided with a photovoltaic module; the photovoltaic module comprises a laminate (30) and a secondary frame; the laminate (30) is arranged on the secondary frame; the secondary frame is fixedly connected to the photovoltaic bearing frame (11).

Description

Curtain wall unit, photovoltaic curtain wall and building

Cross-references to related applications

This disclosure requires the priority of a patent application filed with the China Patent Office on March 23, 2022, with application number 202210294895.9 and titled "A Curtain Wall Unit, Photovoltaic Curtain Wall and Building", the entire content of which is incorporated into this disclosure by reference. middle.

Technical field

This application relates to the technical field of photovoltaic curtain walls, and in particular to a curtain wall unit, photovoltaic curtain walls and buildings.

Background technique

Photovoltaic curtain walls usually include multiple photovoltaic structures, beams and vertical columns. During the assembly process, two horizontal frames and two vertical frames are connected end to end to form a frame. Photovoltaic modules usually include laminates with outer frames, junction boxes, photovoltaic cables and connectors connected in sequence. Generally, the laminates are bonded to the frame through adhesives.

In recent years, in response to the development of the national green building industry, the demand for photovoltaic curtain wall projects has also been increasing. The construction and photovoltaic industries are constantly exploring and practicing photovoltaic building integration. Regarding the crystalline silicon photovoltaic curtain wall, the existing technology has the problem that it is difficult to install photovoltaic modules in the non-wall layers of the building, and the photovoltaic curtain wall has poor light transmittance.

Contents of the invention

The purpose of this application is to provide a curtain wall unit, a photovoltaic curtain wall and a building to solve the problem that it is difficult to install photovoltaic modules in the inter-layer locations of the building.

In order to achieve the above objectives, this application provides the following technical solutions:

In the first aspect, this application provides a curtain wall unit, including:

The load-bearing frame includes a photovoltaic load-bearing frame and a light-transmitting load-bearing frame. The light-transparent load-bearing frame is installed with a light-transmitting layer; the photovoltaic load-bearing frame is installed with photovoltaic modules. The photovoltaic modules include laminates and sub-frames, and the laminates are arranged on the sub-frame. On the top, the sub-frame is fixedly connected to the photovoltaic carrying frame.

When the above technical solution is adopted, in practical applications, the load-bearing frame of each curtain wall unit is divided into a photovoltaic load-bearing frame and a light-transmitting load-bearing frame, which are used to install photovoltaic components and light-transmitting layers respectively, and are suitable for installation in the height direction of the building facade. Layer-by-layer arrangement, photovoltaic bearing frames are installed only on the exterior walls corresponding to the building facade, so as to facilitate During installation, light-transmitting bearing frames are used corresponding to the door and window positions between the layers of the building facade, which solves the problem of difficulty in installing photovoltaic modules between layers, and also improves the problem of poor light transmittance of existing photovoltaic curtain walls.

In some implementations, the laminate and the photovoltaic carrying frame are enclosed to form an accommodation space, or the laminate, the sub-frame and the photovoltaic carrying frame are enclosed to form an accommodation space, and the junction box of the photovoltaic module and the photovoltaic cables led out of the junction box All are accommodated in the accommodation space.

The effect of adopting the above solution is that by using the wiring method on the backlight surface of the laminate, the junction box, connector and cables can be accommodated in the accommodation space, and the cable routing can be realized in the accommodation space. Based on this, not only can the routing of cables be standardized, but also junction boxes, connectors and cables can be effectively prevented from being exposed, thereby reducing the adverse impact on the aesthetics of the entire photovoltaic curtain wall.

In some implementations, the hosting box includes:

The first beam, the second beam, the third beam, the first column and the second column. The first beam, the second beam and the third beam are all arranged in parallel and spaced apart. The first column and the second column are along the height direction of the building facade. Parallel spaced arrangement;

The first upright column and the second upright column are respectively connected end to end with the first cross beam and the third cross beam to form a rectangular frame;

Both ends of the second crossbeam are vertically connected to the first upright column and the second upright column respectively, dividing the rectangular frame into a photovoltaic carrying frame and a light-transmitting carrying frame.

The effect of adopting the above solution is that the light-transmitting carrying frame and the photovoltaic carrying frame are connected along the height direction of the building facade and share the second beam. The design is reasonable and the structure is simple. It also has good power generation and light transmission performance. Since the two are jointly composed The load-bearing frame in the curtain wall unit also improves efficiency during the actual installation process.

In some implementations, the first column is detachably connected to the adjacent second column.

In some implementations, the first column and/or the second column are provided with ventilation and heat dissipation holes connected to the accommodation space at positions corresponding to the photovoltaic carrying frame.

The effect of adopting the above solution is to achieve ventilation and heat dissipation during the use of photovoltaic modules by opening ventilation and heat dissipation holes, increase photovoltaic power generation efficiency, and reduce safety hazards caused by overheating.

In a second aspect, this application provides a photovoltaic curtain wall, which includes a plurality of curtain wall units electrically connected together. The curtain wall unit is the curtain wall unit described in the first aspect. The photovoltaic bearing frame of each curtain wall unit is connected to the wall of the building facade. The light-transmitting frame of the curtain wall unit corresponds to the location of the doors and windows on the building facade.

For the effects of using this photovoltaic curtain wall, please refer to the description of the first aspect and will not repeat them here.

In some implementations, the photovoltaic carrying frame has relative The first side and the second side, the first side is a first assembly surface that is firmly connected to the building facade, and the second side is a second assembly surface that is detachably connected to the sub-frame.

The effect of adopting the above solution is that the first assembly surface is fixedly connected to the building facade to support the curtain wall unit, and the second assembly surface is connected to the sub-frame of the photovoltaic module to fix the laminate. Enables the installation of laminates in photovoltaic load-bearing frames.

In some implementations, the light-transmitting carrying frame has opposite third and fourth sides in a direction perpendicular to the building facade. The third side is the first connection surface corresponding to the building facade, and the fourth side is The third assembly surface connected to the light-transmitting layer.

In some implementations, a buckle cover is also included. The buckle cover is installed on the first connection surface and forms a sub-accommodation space for placing photovoltaic cables and connectors with the first connection surface.

In some implementations, an interlayer backing plate is installed on the first assembly surface of the photovoltaic carrying frame, and the interlayer backing plate is provided with a sleeve for drawing out photovoltaic cables from the accommodation space formed by the laminate and the photovoltaic carrying frame. Tube.

The effect of using the above solution is that through the reserved casing on the interlayer backplane, the photovoltaic cables in the accommodation space can be led out and routed to the skirting area on the indoor side for series connection between photovoltaic load-bearing frames on the same layer.

In some implementations, an insulation layer is provided in the accommodation space, and the insulation layer is connected to the interlayer backing plate.

The effect of adopting the above solution is that by setting up an insulation layer in the accommodation space, it has an insulation effect on the exterior wall of the building and helps to increase the indoor temperature.

In some implementations, the interlayer backboard in the photovoltaic frame is provided with a wiring trough on the side close to the building facade. Both ends of the wiring trough are connected to the casing and the sub-accommodating space respectively, and are used to connect the accommodating space with the sub-accommodating space. The photovoltaic cables in the sub-accommodation space are routed and connected, and the wiring trough is covered with a sealing plate.

The effect of adopting the above solution is that the photovoltaic cables and connectors supported by the wiring trough can hide the photovoltaic cables led out through the casing, which has the aesthetic effect of standardizing the wiring, and has a waterproof effect to improve the use of photovoltaic cables. and through the wiring trough and the sub-accommodation space, the electrical connection of the photovoltaic cables between the two adjacent curtain wall units along the height of the building facade can be realized, which facilitates series wiring and maintenance.

In a third aspect, this application provides a building, including a building facade and a photovoltaic curtain wall. The photovoltaic curtain wall is the photovoltaic curtain wall described in the first aspect.

For the effects of buildings using this photovoltaic curtain wall, refer to the description of the first aspect and will not be repeated here.

The above description is only an overview of the technical solutions of the present application. In order to have a clearer understanding of the technical means of the present application, they can be implemented according to the content of the description, and in order to make the above and other purposes, features and advantages of the present application more obvious and understandable. , the specific implementation methods of the present application are specifically listed below.

Description of the drawings

In order to more clearly explain the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic structural diagram of a photovoltaic curtain wall provided by this application;

Figure 2 is a schematic structural diagram of the load-bearing frame of the curtain wall unit provided by this application;

Figure 3 is a cross-sectional view at point a in Figure 1;

Figure 4 is a cross-sectional view at b in Figure 1;

Figure 5 is a cross-sectional view at c in Figure 1;

Figure 6 is a cross-sectional view at point d in Figure 1 .

Reference signs:
10-curtain wall unit; 11-photovoltaic load-bearing frame; 111-first beam; 1111-lateral sub-frame; 112-second beam; 113-third beam; 1131-vertical sub-frame; 1132-encapsulation strip; 12- Translucent carrying frame; 121-first column; 122-second column; 1221-buckle cover; 1222-buckle cover fixing piece; 20-light-transmitting layer; 30-laminated part; 301-seal; 302-adhesive parts; 31-junction box; 32-photovoltaic cable; 40-interlayer backplane; 401-casing; 402-trough; 403-sealing plate; 50-ventilation and heat dissipation holes; 51-fireproof cotton; 52-kicking board ; 53-kicking board; 100-building facade; 101-accommodating space; 1011-insulation layer; 102-sub-accommodating space.

Specific embodiments

The embodiments of the present application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present application, but should not be construed as limiting the present application.

In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", The orientations or positional relationships indicated by "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply the device or device referred to. Components must have a specific orientation, be constructed and operate in a specific orientation, Therefore, it cannot be construed as a limitation on this application.

In addition, the terms “first” and “second” are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of this application, "plurality" means two or more than two, unless otherwise explicitly and specifically limited.

In this application, unless otherwise clearly stated and limited, the terms "installation", "connection", "connection", "fixing" and other terms should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. , or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interaction between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

In this application, unless otherwise explicitly stated and limited, the term "above" or "below" a first feature on a second feature may include direct contact between the first and second features, or may also include the first and second features. Not in direct contact but through additional characteristic contact between them. Furthermore, the terms "above", "above" and "above" a first feature on a second feature include the first feature being directly above and diagonally above the second feature, or simply mean that the first feature is higher in level than the second feature. “Below”, “under” and “under” the first feature is the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature is less horizontally than the second feature.

The embodiment of the present application discloses a photovoltaic curtain wall unit, as shown in Figures 1-3, including a load-bearing frame,

The carrying frame includes a photovoltaic carrying frame 11 and a light-transmitting carrying frame 12. The light-transmitting carrying frame 12 is installed with a light-transmitting layer 20; the photovoltaic carrying frame 11 is installed with photovoltaic modules. The photovoltaic modules include a laminate 30 and a sub-frame. The laminate 30 Set on the sub-frame, the sub-frame 30 is fixedly connected to the photovoltaic carrying frame 11.

In actual use, the load-bearing frame of each curtain wall unit 10 is divided into a photovoltaic load-bearing frame 11 and a light-transmitting load-bearing frame 12, and the photovoltaic components and the light-transmitting layer 20 are installed respectively, which can be applied to the inter-layer arrangement in the height direction of the building facade 100. , so that the photovoltaic carrying frame 11 corresponds to the position of the outer wall of the building facade 100, and the light-transmitting layer 20 corresponds to the position of the lighting doors and windows of the building facade 100, so as to solve the problem that it is difficult to install photovoltaic modules between layers of the building, and improve the existing photovoltaic The problem of poor light transmittance of curtain walls.

As shown in FIG. 2 , the laminate 30 , especially its backlight surface and the photovoltaic carrying frame 11 are enclosed to form the accommodation space 101 , or the laminate 30 , especially its backlight surface, sub-frame and the photovoltaic carrying frame 11 are enclosed. The accommodation space 101 is formed, and the junction box 31 of the photovoltaic module and the photovoltaic cable 32 led out from the junction box 31 are both accommodated. placed in the accommodation space 101. The electrical connection between multiple curtain wall units 10 is to use the junction box 31 to lead out the electricity of a single curtain wall unit 10, and then use the connector and photovoltaic cable 32 to connect the junction boxes 20 included in the multiple curtain wall units 10 in series. Together, they are then output to batteries or inverters to realize the transmission and utilization of electricity generated by the photovoltaic curtain wall; after the wiring method on the backlight surface of the laminate 30 is adopted and multiple curtain wall units 10 are assembled to form a photovoltaic curtain wall, The junction box 31 and photovoltaic cables 32 can be accommodated in the accommodation space 101. The accommodation space 101 provides a large enough installation space for the junction box 31 and the photovoltaic cable 32, and can hide the larger junction box 31. Standards The wiring of photovoltaic modules is improved and the aesthetics of the photovoltaic curtain wall is improved.

As shown in Figure 2, in this embodiment, the load-bearing frame of the curtain wall unit 10 includes: a first beam 111, a second beam 112, a third beam 113, a first column 121 and a second column 122, wherein the first beam 111. The second cross beam 112 and the third cross beam 113 are arranged in parallel and spaced apart, and the first upright column 121 and the second upright column 122 are arranged in parallel and spaced apart along the height direction of the building facade 100; the first upright column 121 and the second upright column 122 are respectively connected with the first cross beam. 111 and the third beam 113 are connected end to end to form a rectangular frame; the two ends of the second beam 112 are vertically connected to the first column 121 and the second column 122 respectively, dividing the rectangular frame into a photovoltaic carrying frame 11 and a light-transmitting carrying frame 12 , the photovoltaic carrying frame 11 and the light-transmitting carrying frame 12 together form the carrying frame of the curtain wall unit 10 .

As shown in Figures 3 and 4, in some embodiments, the first column 121 and the second column 122 are respectively provided on both sides of the load-bearing frame to facilitate the connection of two adjacent curtain wall units 10 on the same floor. Preferably , both the first column 121 and the second column 122 are hollow structures, which can reduce the overall weight and facilitate heat dissipation. A mutually matched detachable connection structure is provided on the opposite side in the direction parallel to the building facade 100 , such as the connection method of hook and slot engagement or the threaded connection method of bolts, etc., are not specifically limited here.

Based on this, the load-bearing frames in two adjacent curtain wall units 10 can be spliced together. In practical applications, the two adjacent load-bearing frames are fixed together through the snap connection of the first column 121 and the second column 122 . And a sealing strip 1132 is preset at the connection. The sealing strip 1132 is Ethylene Propylene Diene Monomer (abbreviated as EPDM) or other strips that can achieve the same function.

Exemplarily, the sub-frame includes a transverse sub-frame 1111 and a vertical sub-frame 1131. As shown in Figure 3, the vertical sub-frame 1131 of the photovoltaic module can be connected to the first upright column 121 on the second assembly surface of the photovoltaic carrying frame 11. The detachable connection with the second upright column 122 may be achieved by threaded connection through fastening screws, for example. As shown in the picture 5-As shown in Figure 6, the first cross beam 111 and the second cross beam 112 in the photovoltaic carrying frame 11 are detachably connected to the transverse sub-frame 1111 respectively.

In some embodiments, the first column 121 and/or the second column 122 are provided with ventilation and heat dissipation holes 50 connected to the accommodation space 101 at positions corresponding to the photovoltaic carrying frame 11 . With this arrangement, the ventilation and heat dissipation holes 50 can be opened evenly from one end to the other end in the length direction of the first column 121 and the second column 122 to achieve the ventilation and heat dissipation effect during the use of the photovoltaic module. Preferably, The first column 121 and the second column 122 can be opened at both ends along the height direction of the building facade 100. Cold wind or cold air enters the accommodation space 101 from one end to cool down the photovoltaic modules and finally flows out from the other end. In this case It is beneficial to form air circulation in the accommodation space 101, increase photovoltaic power generation efficiency, and eliminate safety hazards caused by overheating.

As shown in Figures 5 and 6, fireproof cotton 51 is filled between the photovoltaic carrying frame 11 and the building facade 100 to enhance the protection of the building and make it safer.

The embodiment of the present application also discloses a photovoltaic curtain wall, which is formed on the building facade 100 and includes a plurality of curtain wall units 10 that are electrically connected together. The curtain wall units 10 are the above-mentioned curtain wall units 10. The photovoltaic load of each curtain wall unit 10 is The frame 11 corresponds to the wall position of the building facade, and the light-transmitting frame 12 of the curtain wall unit 10 corresponds to the door and window positions of the building facade.

Through the above solution, each curtain wall unit 10 is divided into a light-transmitting part and a photovoltaic power generation part, so as to be suitable for the inter-layer arrangement in the height direction of the building facade 100, so that the photovoltaic power generation part corresponds to the outer wall position of the building facade 100, and the transparent part is The light part corresponds to the door and window positions of the building facade, which solves the problem of difficulty in installing photovoltaic modules between floors and irregular wiring, and improves the problem of poor light transmittance of the existing photovoltaic curtain wall.

As shown in Figure 3, it is a cross-sectional view of the photovoltaic bearing frame. In a specific embodiment, the first column 121 of the bearing frame of one curtain wall unit 10 here is connected to the bearing frame of another adjacent curtain wall unit 10. The second column 122 is detachably connected. The photovoltaic carrying frame 11 has an opposite first side and a second side in a direction perpendicular to the building facade 100 . The first side is a first assembly surface that is fastened to the building facade 100 . , the second side is the second assembly surface that is detachably connected to the sub-frame.

Among them, the first assembly surface and the building facade 100 can be fastened together in various ways, such as through welding, threaded connection and other non-detachable or detachable ways, which are not specifically limited here; use At this time, the first assembly surface of the photovoltaic carrying frame 11 is fixedly connected to the building facade 100, thereby achieving the supporting effect of the building on the curtain wall unit 10.

As shown in Figure 3, the end faces and side edges of the photovoltaic carrying frame 11 and the laminate 30 are passed through dense seals respectively. The sealing member 301 and the adhesive member 302 are connected; specifically, during actual use, the adhesive member 302 can be a double-sided sticker, silicone structural adhesive, or other adhesive member with good bonding ability. The side edge of the laminate 30 First, it is pre-fixed with the photovoltaic frame 11 through double-sided stickers. Then, the laminate 30 is further connected and fixed using neutral silicone structural glue to ensure the tightness of the connection between the end surface of the laminate 30 and the photovoltaic frame 11, and then Ensure the tightness of the connection between the laminate 30 and the first column 121 or the second column 122 so that the assembled photovoltaic structure is safe and stable. In one example, the above-mentioned seal 301 may include weather-resistant silicone sealant and perlite foam rod.

As shown in FIG. 4 , in this embodiment, the light-transmitting carrying frame 12 has opposite third and fourth sides in a direction perpendicular to the building facade 100 ; the third side is the third side corresponding to the building facade 100 . A connection surface, the fourth side is a third assembly surface connected to the light-transmitting layer 20 .

As shown in FIG. 4 , a sealing strip 1132 is provided at the connection between the third assembly surface of the light-transmitting frame 12 and the light-transmitting layer 20 . The sealing strip 1132 is made of EPDM rubber or other strips that can achieve the same function. . The light-transmitting layer 20 is made of a light-transmitting material such as ordinary glass, tempered glass and other materials with good light transmission. In this embodiment, insulating glass and laminated glass are used. The end faces and side edges of the light-transmitting layer 20 connected to the light-transmitting carrying frame 12 are connected through the sealing member 301 and the adhesive member 302 respectively; for the specific bonding method, please refer to the above-mentioned connection method between the photovoltaic carrying frame 11 and the laminate 30 , to achieve fixed connection between the light-transmitting layer 20 and the first upright column 121 and the second upright column 122 .

Further, a buckle cover 1221 is included. The buckle cover 1221 is installed on the first connection surface along the height direction of the building facade 100 and forms a sub-accommodation space 102 with the first connection surface for placing the photovoltaic cable 32 and the connector. , in the specific installation process, the buckle cover fixing part 1222 can be fixedly connected to the first connection surface through bolts, and the buckle cover 1221 and the buckle cover fixing part 1222 are buckled and connected.

As shown in FIG. 5 , in some embodiments, an interlayer backplane 40 is installed on the first assembly surface of the photovoltaic carrying frame 11 , and the interlayer backplane 40 is provided with a sleeve 401 for drawing out the photovoltaic cable 32 . With this arrangement, the photovoltaic cables 32 in the accommodation space 101 can be led out through the reserved casing 401 of the interlayer backplane 40 and routed to the skirting area on the indoor side for series connection between photovoltaic carrying frames 11 on the same layer. .

Furthermore, the gaps around the holes on the interlayer backing plate 40 for passing the casing 401 need to be sealed with fireproof sealing materials to ensure safety.

As shown in Figure 5, the photovoltaic carrying frame 11 is provided with a skirting board 52 at a non-wall position between floors of the building. The skirting board 52 corresponds to the indoor skirting area of the building and is used for the photovoltaic cables 32 of the photovoltaic carrying frame 11 on the same floor. For series connection, preferably, the skirting board 52 is designed to be L-shaped to facilitate the formation of accommodating the photovoltaic cables 32 In the space of the connector, a skirting board 53 is provided to connect the building facade 100 and the first beam 111 to support the skirting board 52 and play a connecting and fixing role.

As shown in Figures 5 and 6, in some embodiments, an insulation layer 1011 is provided in the accommodation space 101. The insulation layer 1011 can be made of common building insulation materials, such as insulation cotton, and the insulation cotton is provided on the interlayer backboard 40. The side away from the interlayer backboard 40 is connected to a galvanized steel plate. The thickness of the insulation layer 1011 can be set to between 1/3 and 1/2 of the thickness of the accommodation space 101 to achieve the insulation effect of the building exterior wall. As well as the protective effect on photovoltaic modules at low temperatures, it also helps to increase the indoor temperature.

As shown in Figure 5, preferably, in this embodiment, a wiring trough 402 is provided on the side of the interlayer backboard 40 in the photovoltaic carrying frame 11 close to the building facade 100, and the two ends of the wiring trough 402 are respectively It is connected with the sleeve 401 and the sub-accommodating space 102, and is used to electrically connect the accommodating space 101 with the photovoltaic cable 32 in the sub-accommodating space 102. The wiring trough 402 is covered with a sealing plate 403. During actual operation, supporting the photovoltaic cables 32 and connectors through the wiring trough 402 can hide the photovoltaic cables 32 led out through the sleeve 401, thereby achieving the aesthetic effect of standardizing the wiring, and having a waterproof effect to improve the efficiency of photovoltaic cables. The service life of the cable 32.

Furthermore, by connecting the wiring trough 402 with the sub-accommodating space 102 on the second column 122, the electrical connection of the photovoltaic cables 32 between the two adjacent curtain wall units 10 along the height of the building facade 100 can be achieved, that is, The cross-layer connection method on the building facilitates series wiring and maintenance.

An embodiment of the present application also discloses a building, which includes a building facade and a photovoltaic curtain wall. The photovoltaic curtain wall is the above-mentioned photovoltaic curtain wall. By using this photovoltaic curtain wall, the problem of poor light transmittance of existing photovoltaic curtain walls is improved. It is mostly suitable for crystalline silicon cell photovoltaic curtain walls. It can not only standardize the routing of cables, but also effectively avoid junction boxes 31, connectors and The photovoltaic cables 32 etc. are exposed, affecting the aesthetics of the photovoltaic curtain wall.

In the description of this specification, reference to the terms "one embodiment," "some embodiments," "an example," "specific examples," or "some examples" or the like means that specific features are described in connection with the embodiment or example. , structures, materials or features are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may join and combine the different embodiments or examples described in this specification.

Although the embodiments of the present application have been shown and described above, it will be understood that the above-described embodiments They are illustrative and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, replacements and modifications to the above-described embodiments within the scope of the present application.

Claims

A curtain wall unit is characterized by including:

Bearing frame, the bearing frame includes a photovoltaic bearing frame and a light-transmitting bearing frame, the light-transmitting bearing frame is installed with a light-transmitting layer; the photovoltaic bearing frame is equipped with a photovoltaic component, the photovoltaic component includes a laminate and a sub-frame , the laminate is arranged on the sub-frame, and the sub-frame is fixedly connected to the photovoltaic carrying frame.
The curtain wall unit according to claim 1, characterized in that the laminate and the photovoltaic bearing frame are enclosed to form an accommodation space, and the junction box of the photovoltaic module and the photovoltaic cables led out from the junction box are both accommodated. placed in the accommodating space.
The curtain wall unit according to claim 1 or 2, characterized in that the load-bearing frame includes:

A first crossbeam, a second crossbeam, a third crossbeam, a first upright column and a second upright column. The first crossbeam, the second crossbeam and the third crossbeam are all arranged in parallel and spaced apart. The first upright column and the The second columns are arranged at parallel intervals along the height direction of the building facade;

The first upright column and the second upright column are respectively connected end to end with the first cross beam and the third cross beam to form a rectangular frame;

Both ends of the second crossbeam are vertically connected to the first upright column and the second upright column respectively, dividing the rectangular frame into the photovoltaic carrying frame and the light-transmitting carrying frame.
The curtain wall unit according to claim 3, wherein the first column is detachably connected to the adjacent second column.
The curtain wall unit according to claim 4, wherein the first column and/or the second column are provided with ventilation and heat dissipation holes connected to the accommodation space at positions corresponding to the photovoltaic carrying frame.
A photovoltaic curtain wall, characterized in that it includes a plurality of curtain wall units that are electrically connected together. The curtain wall unit is the curtain wall unit according to any one of claims 1 to 5, and the photovoltaic bearing frame of each curtain wall unit corresponds to the building elevation. The position of the wall on the facade, the light-transmitting frame of the curtain wall unit corresponds to the position of the doors and windows on the building facade.
The photovoltaic curtain wall according to claim 6, characterized in that the photovoltaic carrying frame has an opposite first side and a second side in a direction perpendicular to the building facade, and the first side is connected to the The first assembly surface is fastened to the building facade, and the second side is the second assembly surface to be detachably connected to the sub-frame.
The photovoltaic curtain wall according to claim 7, characterized in that the light-transmitting carrying frame is vertically There are opposite third and fourth sides in the direction perpendicular to the building facade, the third side is the first connection surface corresponding to the building facade, and the fourth side is the first connection surface corresponding to the building facade. The third assembly surface connected by the light-transmitting layer.
The photovoltaic curtain wall according to claim 8, further comprising a buckle cover, the buckle cover is installed on the first connection surface, and is enclosed with the first connection surface for placing photovoltaic cables and wiring. container's sub-containing space.
The photovoltaic curtain wall according to claim 9, characterized in that, an interlayer backplane is installed on the first assembly surface of the photovoltaic load-bearing frame, and the interlayer backplane is provided with a structure for connecting the laminate to the photovoltaic load-bearing frame. The sleeve of the photovoltaic cable is led out from the accommodation space formed by the frame.
The photovoltaic curtain wall according to claim 10, characterized in that an insulation layer is provided in the accommodation space, and the insulation layer is connected to the interlayer backing plate.
The photovoltaic curtain wall according to claim 10, characterized in that the interlayer backboard is provided with a wiring trough on a side close to the building facade, and both ends of the wiring trough are connected to the casing and the casing respectively. The sub-accommodating spaces are connected and used to connect the accommodating space with the photovoltaic cable wiring in the sub-accommodating spaces, and the wiring trough is covered with a sealing plate.
A building, characterized in that it includes a building facade and a photovoltaic curtain wall, and the photovoltaic curtain wall is the photovoltaic curtain wall according to any one of claims 6-12.