Photovoltaic curtain wall electrical cable mounting structure

Abstract

The application relates to the technical field of photovoltaic curtain walls, in particular to a photovoltaic curtain wall electrical cable mounting structure, which is applied to a photovoltaic curtain wall and comprises: a photovoltaic glass combination which comprises photovoltaic glass plates, the two lateral sides of the photovoltaic glass plates are pressed by pressing blocks to be fixed on an outer wall; a decorative cover which is longitudinally arranged and covers the pressing blocks to form a wiring channel; a junction box which is arranged on the two lateral sides of the photovoltaic glass plates respectively, the junction box is provided with outgoing lines for electrical conduction, the outgoing lines are arranged in the wiring channel; a photovoltaic direct-current cable which is longitudinally arranged in the wiring channel; the photovoltaic glass combination comprises a plurality of photovoltaic glass plates, the outgoing lines between the plurality of photovoltaic glass plates are sequentially connected in series, wherein the outgoing lines which are not connected in series are connected with the photovoltaic direct-current cable one by one; or, the photovoltaic glass combination comprises one photovoltaic glass plate, and the outgoing line of the photovoltaic glass combination is connected with the lower end of the photovoltaic direct-current cable one by one. The problem that the traditional photovoltaic curtain wall is inconvenient to maintain is solved.

Description

Technical Field

[0001] This application relates to the field of photovoltaic curtain wall technology, and in particular to an electrical cable installation structure for photovoltaic curtain walls. Background Technology

[0002] With societal development and increasingly stringent carbon emission control requirements, the construction industry is paying growing attention to the utilization of green, environmentally friendly, and renewable energy sources. Photovoltaic power generation, as a pollution-free and zero-emission clean energy source, is gradually becoming an important development direction for building-integrated photovoltaics (BIPV). Photovoltaic curtain walls, as a technology that integrates photovoltaic modules into buildings, not only provide electricity but also become an integral part of the building structure, enhancing the overall performance of the building.

[0003] However, existing photovoltaic (PV) curtain walls have several problems. For example, traditional PV curtain walls present difficulties in wiring and concealing cables, exposed cables affect the building's aesthetics, pose significant installation risks, and make maintenance difficult and time-consuming. In some cases, the PV DC cables cannot be opened for inspection and maintenance after installation. Furthermore, traditional PV curtain walls are complex to manufacture and install, resulting in poor consistency with the building structure. In particular, the complex wiring and messy cabling make installation and maintenance inconvenient, and they fail to meet the demands of modern decorative engineering projects for standardized factory production and convenient on-site installation.

[0004] In addition, the vertical cables of high-rise or super high-rise photovoltaic curtain walls are usually quite long, especially the photovoltaic DC cables that extend downwards from the roof along the curtain wall with a large span and no reliable vertical fixing measures. This can easily cause the photovoltaic DC cables to pull on the cables due to their own weight, and after long-term operation, the cables may break. At the same time, the photovoltaic connectors are affected by the vertical tension of the cables for a long time, which can cause the connectors to fall off or have poor contact. This problem can lead to DC arcing and then cause electrical fires.

[0005] To address the aforementioned issues, ensuring the safety and reliability of photovoltaic curtain walls while maintaining their harmony with the building structure, and providing a design that facilitates installation and maintenance, has become a pressing technical challenge. Summary of the Invention

[0006] The purpose of this application is to propose an electrical cable installation structure for photovoltaic curtain walls, which at least solves the problem of complex wiring and messy cabling in traditional photovoltaic curtain walls, leading to inconvenient maintenance.

[0007] To achieve the above objectives, this application adopts the following technical solution:

[0008] An electrical cable installation structure for a photovoltaic (PV) curtain wall is disclosed. The PV curtain wall is installed on the exterior wall of a building and includes several PV glass panels. Pressure blocks are provided on both sides of each PV glass panel, and these pressure blocks press against the lateral edges of the PV glass panels towards the exterior wall to fix the PV glass panels to the exterior wall. The electrical cable installation structure includes: a decorative cover extending longitudinally, which covers the pressure blocks and the side of the PV curtain wall away from the exterior wall, forming a longitudinally extending cable routing channel inside the decorative cover; and junction boxes respectively disposed on two lateral sides of the PV glass panels, such that one of the junction boxes serves as a... One terminal outputs a positive electrode, and the other outputs a negative electrode. The junction box is equipped with leads for electrical conduction, and the leads are placed in the wiring channel. A photovoltaic DC cable is longitudinally arranged in the wiring channel. A photovoltaic glass assembly includes at least one photovoltaic glass panel. When the photovoltaic glass assembly includes multiple photovoltaic glass panels, the leads between adjacent photovoltaic glass panels are connected in series according to their sorting order. The leads in the photovoltaic glass assembly that are not connected in series are connected one-to-one to the lower end of the photovoltaic DC cable. Alternatively, when the photovoltaic glass assembly includes one photovoltaic glass panel, the leads of the photovoltaic glass panel are connected one-to-one to the lower end of the photovoltaic DC cable.

[0009] Based on the above scheme and as a preferred embodiment: the exterior wall is provided with several horizontal beams and several vertical beams, and the horizontal beams are provided with support members, the lower side of the photovoltaic glass panel is supported on the support members; the horizontal sides of the photovoltaic glass panel extend to the vertical beams, extending to the side of the vertical beam away from the exterior wall, and are connected to the vertical beams by pressure blocks, so that the side of the pressure block abuts against the side of the horizontal side of the photovoltaic glass away from the exterior wall, thereby fixing the photovoltaic glass to the horizontal beams; the cross section of the decorative cover has a receiving groove with the opening direction facing the photovoltaic curtain wall, and the side of the receiving groove with the opening direction is detachably connected to the pressure block.

[0010] Based on the above scheme and as a preferred embodiment: in the horizontal direction of the photovoltaic curtain wall, there is an installation gap between two adjacent photovoltaic glass panels; on the horizontal sides of the longitudinal beam away from the outer wall, first elastic support members are respectively provided, the first elastic support members are arranged longitudinally and are respectively supported between the longitudinal beam and the photovoltaic glass panel; anti-corrosion gaskets are respectively provided on both sides of the pressure block, and the anti-corrosion gaskets are arranged between the pressure block and the photovoltaic glass; an adjustable connection structure is provided in the installation gap, and the pressure block is connected to the longitudinal beam through the adjustable connection structure.

[0011] Based on the above scheme and as a preferred embodiment: the pressure block is provided with a first through hole facing the installation gap; the adjustable connection structure includes: a connecting strip, which is located in the installation gap and is arranged longitudinally along the installation gap; the connecting strip is provided with a screw groove along its length; the screw groove is open at both ends to form an opening, and there are opposing extending flanges on both sides of the opening direction; the bottom of the screw groove is provided with at least two penetrating second through holes, and the two second through holes are arranged along the length direction of the connecting strip; the opening direction of the screw groove faces away from the outer wall; a second elastic support member, which is supported between the connecting strip and the longitudinal beam; a threaded connection hole, which is provided on the longitudinal beam and corresponds to the second through hole; a first screw, which is provided in the screw groove and is threadedly connected to the threaded connection hole after passing through the second through hole; a second screw, which is provided in the screw groove and is inserted into the first through hole after passing through the opening of the screw groove; and a first nut, which is provided on the side of the pressure block away from the connecting strip and is threadedly connected to the second screw.

[0012] Based on the above scheme and as a preferred embodiment of the above scheme: in the longitudinal direction, a soft sealing body is provided between the ends of two adjacent connecting strips; the longitudinal beam is provided with a protruding ridge protruding towards the connecting strip, and two first grooves extending along the length of the longitudinal beam are provided on the side of the protruding ridge facing the connecting strip, and the two first grooves are respectively located on both sides of the threaded connection hole.

[0013] The connecting strip has two second grooves extending along its own length on the side facing the longitudinal beam, and the second grooves are respectively located on both sides of the second through hole; the second elastic support includes two elastic sealing strips, the two sealing strips are respectively arranged on both sides of the second through hole, and the two sides of the sealing strips in the width direction are respectively embedded in the first groove and the second groove.

[0014] Based on the above solution and as a preferred embodiment: a first foam strip is provided between the connecting strip and the side of the photovoltaic glass panel. The first foam strip is filled between the connecting strip and the photovoltaic glass panel by compression, and the side of the first foam strip away from the longitudinal beam, the side of the photovoltaic glass panel, and the side of the connecting strip together form a first U-shaped groove with the opening direction away from the longitudinal beam. Silicone weather-resistant sealant is provided to fill the first U-shaped groove.

[0015] Based on the above scheme and as a preferred embodiment: In the transverse direction, the two sides of the pressure block are respectively provided with connecting portions protruding away from the outer wall; the decorative cover is a thin-walled structural component, and the two sides of the receiving groove opening direction have first folded edges extending towards each other, and a second folded edge extending vertically towards the outer wall on the first folded edge. The second folded edge is located outside the connecting portion, and a connecting screw is provided to pass through the second folded edge and insert into the connecting portion. The second folded edge is fixedly connected to the connecting portion by the threaded engagement of the connecting screw with the connecting portion, and the first folded edge and the second folded edge form a second U-shaped groove on the photovoltaic glass with the opening direction away from the pressure block; a second foam strip is provided in the second U-shaped groove, and the second foam strip is pressed into the second U-shaped groove to fill the second U-shaped groove. The side of the second foam strip away from the pressure block direction is spaced from the side edge of the opening of the second U-shaped groove, so that a third U-shaped groove is formed at the opening of the second U-shaped groove. The third U-shaped groove is filled with silicone weather-resistant sealant.

[0016] Based on the above scheme and as a preferred embodiment of the above scheme: the wiring channel has several vertical fixing positions distributed longitudinally, the photovoltaic DC cable passes through the vertical fixing positions and is fixed by the vertical fixing positions.

[0017] Based on the above scheme and as a preferred embodiment: the vertical line fixing position includes two first clamping plates, a second clamping plate, and a third screw; both the first clamping plate and the second clamping plate include a first plate body and a third flange protruding from both ends of the first plate body, forming a first line receiving groove together with the first plate body through the two third flanges, each third flange having a connecting lug extending away from the other third flange, and a third through hole on the connecting lug; the first clamping plate is fixedly installed, and the second clamping plate is installed on the opposite side of the first clamping plate, so that the two first line receiving grooves are opposite to each other; two third screws are provided, passing through the third through holes of the first clamping plate and the second clamping plate simultaneously from both ends of the first plate body, and a second nut is provided on the third screw to connect the first clamping plate and the second clamping plate through the second nut cooperating with the third screw.

[0018] Based on the above scheme and as a preferred embodiment: the vertical line fixing position includes a third clamping plate, a fourth clamping plate, and a fourth screw; the fourth screw is fixedly installed; the third clamping plate includes a second plate body and fourth flanges protruding at both ends of the second plate body, forming a second line-receiving groove together with the second plate body through the two fourth flanges, and a fourth through hole is provided on the second plate body; the third clamping plate is installed on the fourth screw, allowing the fourth screw to be inserted into the fourth through hole, and a third nut is provided on the fourth screw to fix the third clamping plate; the fourth clamping plate includes a third plate body and fifth flanges protruding at both ends of the third plate body, forming a third line-receiving groove together with the third plate body through the two fifth flanges, and a fifth through hole is provided on the second plate body; the fourth clamping plate is installed on the fourth screw, allowing the fourth screw to be inserted into the fifth through hole, and the third line-receiving groove is opposite to the second line-receiving groove; a fourth nut is provided on the fourth screw to press the fourth clamping plate against the third clamping plate through the fourth nut.

[0019] To address the problems of complex and messy wiring in traditional photovoltaic curtain walls, which leads to inconvenient maintenance, this application has the following beneficial effects:

[0020] The electrical cable installation structure for the photovoltaic curtain wall of this application has a decorative cover installed longitudinally on the outer side of the photovoltaic curtain wall (i.e., the side away from the outer wall), which directly forms a cable routing channel extending longitudinally along the outer wall on the outside of the photovoltaic curtain wall.

[0021] Then, the lead wires used to connect the photovoltaic glass panel and output photovoltaic current and voltage are extended laterally into the wiring channel. The photovoltaic DC cable used to connect the photovoltaic glass panel and the combiner box is also set longitudinally along the wiring channel. The combiner box is generally set on the roof of the building, so that the lower end of the photovoltaic DC cable is connected to the lead wire, and the upper end extends upward and connects to the combiner box.

[0022] First, the lead wires are directly led out laterally into the wiring channel. Then, depending on the needs, it can be handled whether adjacent photovoltaic glass panels need to be connected in series. That is, if the lead wires of two different photovoltaic glass panels need to be connected in series, it is only necessary to make a simple connection in the wiring channel.

[0023] Then, since the wiring channel is located outside the photovoltaic curtain wall, when maintenance work such as inspection or repair is required, it is only necessary to remove or modify part of the decorative cover to open the corresponding wiring channel.

[0024] In summary, the electrical cable installation structure of this photovoltaic curtain wall is simple to connect and the wiring is neat and orderly, which reduces the difficulty of installing electrical cables for photovoltaic curtain walls and makes maintenance easy.

[0025] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. These will be further described in detail below with reference to figures. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the electrical cable installation structure for the photovoltaic curtain wall in this application;

[0028] Figure 2 for Figure 1 Enlarged view of section A in the middle;

[0029] Figure 3 This is a schematic diagram of the adjustable connection structure portion of this application;

[0030] Figure 4 This is a schematic diagram illustrating the installation method of the junction box on the photovoltaic glass panel according to this application;

[0031] Figure 5 This is a schematic diagram of the photovoltaic glass combination series connection method with multiple photovoltaic glass panels according to this application;

[0032] Figure 6 This is a longitudinal sectional view of the construction details of the photovoltaic curtain wall electrical cable installation structure of this application;

[0033] Figure 7 This is a cross-sectional view of the construction details of the electrical cable installation structure for the photovoltaic curtain wall in this application;

[0034] Figure 8 This is an exploded view of the photovoltaic glass panel installation method of this application.

[0035] Figure 9 This is a schematic diagram of one embodiment of the vertical line fixing position in this application;

[0036] Figure 10 This is a schematic diagram of the second embodiment of the vertical line fixing method in this application;

[0037] Figure 11 This is an assembly exploded view of the first embodiment of the vertical line fixing position in this application;

[0038] Figure 12 This is an assembly disassembly diagram of Embodiment 2 of the vertical line fixing position of this application.

[0039] Explanation of reference numerals in the attached figures:

[0040] 10. Exterior wall; 11. Horizontal beam; 12. Longitudinal beam; 121. Protruding ridge; 122. First groove; 123. Threaded connection hole;

[0041] 20. Photovoltaic curtain wall; 21. Photovoltaic glass assembly; 22. Photovoltaic glass panel; 23. Installation gap;

[0042] 100. Pressure block; 101. First through hole; 102. Connecting part;

[0043] 200. Adjustable connection structure; 201. Second elastic support; 202. Sealing strip; 203. First screw; 204. Connecting strip; 205. Screw groove; 206. Edge retainer; 207. Second through hole; 208. Second groove; 209. Soft sealing body; 210. Second screw; 211. First nut;

[0044] 300. Decorative cover; 301. Receiving groove; 302. First folded edge; 303. Second folded edge; 304. Wiring channel; 305. Connecting screw; 306. Second U-shaped groove; 307. Second foam strip; 308. Third U-shaped groove;

[0045] 400. Junction box; 401. Lead wire;

[0046] 500. Photovoltaic DC cable; 600. Vertical cable fixing position;

[0047] 601. First clamping plate; 602. Second clamping plate; 603. Third screw; 604. First plate body; 605. Third folded edge; 606. First wire receiving groove; 607. Connecting lug; 608. Third through hole; 609. Sixth through hole; 610. Second nut; 611. Third clamping plate; 612. Fourth clamping plate; 613. Fourth screw; 614. Second plate body; 615. Fourth folded edge; 616. Second wire receiving groove; 617. Fourth through hole; 618. Third nut; 619. Third plate body; 620. Fifth folded edge; 621. Third wire receiving groove; 622. Fifth through hole; 623. Fourth nut; 624. Spacer block;

[0048] 701. First elastic support; 702. Supporting component; 703. Third foam strip; 704. First foam strip; 705. First U-shaped groove; 706. Silicone weather-resistant sealant; 707. Anti-corrosion gasket; 708. Silicone structural adhesive. Detailed Implementation

[0049] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0050] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it may be directly or indirectly located on that other component. When a component is referred to as "connected to" another component, it may be directly or indirectly connected to that other component. The terms "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate orientations or positions based on the accompanying drawings, and are for ease of description only, and should not be construed as limiting the technical solution. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. "A plurality" means two or more, unless otherwise explicitly defined.

[0051] Photovoltaic curtain walls, as a technology that integrates photovoltaic modules into buildings, not only provide electricity but also become an integral part of the building structure, enhancing its overall performance. However, existing photovoltaic curtain walls suffer from complex and messy wiring, leading to inconvenience in installation and maintenance. To solve this problem, refer to... Figures 1-12 This application discloses an electrical cable installation structure for a photovoltaic curtain wall.

[0052] In the embodiments of this disclosure, such as Figure 1 As shown, this photovoltaic curtain wall electrical cable installation structure is mainly used in photovoltaic curtain walls 20 of high-rise or super high-rise buildings. Specifically, it includes a decorative cover 300, a junction box 400, and photovoltaic DC cables 500. The photovoltaic curtain wall 20 is installed on the exterior wall 10 of the building body. The photovoltaic curtain wall 20 includes at least one photovoltaic glass assembly 21, and each photovoltaic glass assembly 21 includes at least one photovoltaic glass panel 22. When installing the photovoltaic glass panel 22, as... Figure 2 As shown, pressure blocks 100 are provided on both sides of the photovoltaic glass panel 22 (i.e., the left and right sides of the photovoltaic glass panel 22), and the pressure blocks 100 apply pressure to the horizontal side edges of the photovoltaic glass panel 22 towards the outer wall 10 to fix the photovoltaic glass panel 22 to the outer wall 10. The decorative cover 300 extends longitudinally, which can be understood as the decorative cover 300 being vertically arranged from top to bottom, as shown. Figure 2 , Figure 6 , Figure 9 as well as Figure 10As shown, the decorative cover 300 covers the pressure block 100, that is, it directly covers the outside of the photovoltaic curtain wall 20 through the opening side of the decorative cover 300, thereby forming a longitudinally extending wiring channel 304 inside the decorative cover 300. Figure 4 As shown, two junction boxes 400 are typically installed on each photovoltaic glass panel 22, one on each of the two lateral sides, i.e., one on each side. This allows one junction box 400 to be the positive output and the other the negative output. Each junction box 400 has a lead wire 401 for electrical conduction, which is placed within a wiring channel 304. A photovoltaic DC cable 500 is longitudinally arranged from top to bottom within the wiring channel 304 along the length of the decorative cover 300. The lower end of the photovoltaic DC cable 500 connects to the lead wire 401, and the upper end extends upwards to connect to the combiner box.

[0053] The photovoltaic curtain wall electrical cable installation structure of this application has a decorative cover 300 longitudinally installed on the outer side of the photovoltaic curtain wall 20 (i.e., the side away from the outer wall 10), and a wiring channel 304 extending longitudinally along the outer wall 10 is directly formed on the outside of the photovoltaic curtain wall 20 through the decorative cover 300.

[0054] Then, the lead wire 401, which is used to connect the photovoltaic glass panel 22 and output photovoltaic current and voltage, is extended directly to the side into the wiring channel 304. The photovoltaic DC cable 500, which is used to connect the photovoltaic glass panel 22 and the combiner box, is also set longitudinally along the wiring channel 304. The combiner box is generally set on the roof of the building, so that the lower end of the photovoltaic DC cable 500 is connected to the lead wire 401, and the upper end extends upward and connects to the combiner box.

[0055] First, the lead wire 401 is directly led out laterally into the wiring channel 304. Then, it can be handled according to the needs of whether the adjacent photovoltaic glass panels 22 need to be connected in series. That is, if the lead wires 401 of two different photovoltaic glass panels 22 need to be connected in series, it is only necessary to make a simple connection in the wiring channel 304.

[0056] Then, since the wiring channel 304 is located outside the photovoltaic curtain wall 20, when maintenance work such as inspection or repair is required, it is only necessary to remove or modify part of the decorative cover 300 to open the corresponding part of the wiring channel 304.

[0057] In summary, the electrical cable installation structure of this photovoltaic curtain wall is simple to connect and the wiring is neat and orderly, which reduces the difficulty of installing 20-gauge cables for the photovoltaic curtain wall and makes it easy to maintain.

[0058] Due to factors such as the design of the curtain wall in buildings, in some cases, the photovoltaic glass panels 22 in the photovoltaic curtain wall 20 are not simply arranged within a rectangular area. There may be a situation where only one photovoltaic glass panel 22 is arranged horizontally at a certain height, while multiple photovoltaic glass panels 22 are arranged horizontally at another height. Therefore, the photovoltaic curtain wall 20 includes at least one photovoltaic glass assembly 21, and each photovoltaic glass assembly 21 includes at least one photovoltaic glass panel 22. That is, the photovoltaic curtain wall 20 can be composed of one or more photovoltaic glass panels 22. It should be noted that the photovoltaic glass panel 22 includes, but is not limited to, crystalline silicon, thin film, or perovskite products.

[0059] In some implementations, such as Figure 5 As shown, the photovoltaic glass assembly 21 includes multiple (i.e., two or more) photovoltaic glass panels 22. The photovoltaic glass panels 22 are arranged in a specific order, with the leads 401 of adjacent panels connected in a positive-negative series. The leads 401 that are not connected in series in the photovoltaic glass assembly 21 are connected one-to-one to the lower end of the photovoltaic DC cable 500. For example, four photovoltaic glass panels 22 constitute one photovoltaic glass assembly 21. These four photovoltaic glass panels 22 are arranged horizontally adjacent to each other, and the order is also prioritized according to their horizontal arrangement. The junction boxes 400 on these four photovoltaic glass panels 22 are configured in the same way. For example, on each photovoltaic glass panel 22, one junction box 400 is located on the upper left side of the photovoltaic glass panel 22 with the positive electrode, and another is located on the lower right side of the photovoltaic glass panel 22 with the negative electrode. In this way, in the wiring channel 304 between two adjacent photovoltaic glass panels 22, there are two adjacent leads 401. One of these leads 401 is the positive terminal, and the other is the negative terminal. Connecting these two leads 401 in series completes the series connection of the photovoltaic glass panels 22. In this way, four photovoltaic glass panels 22 are connected in series to obtain a photovoltaic glass assembly 21 composed of four photovoltaic glass panels 22. The first and last (i.e., the fourth) photovoltaic glass panels 22 each have an unconnected lead 401. One of these two leads 401 is the positive terminal of this photovoltaic glass assembly 21, located on the upper left side of the photovoltaic glass panel 22, and the other lead 401 is the negative terminal of this photovoltaic glass assembly 21, located on the lower right side of the photovoltaic glass panel 22. Then, the positive and negative terminals of this photovoltaic glass assembly 21 are connected to the photovoltaic DC cable 500 in its respective wiring channel 304. It should be noted that each photovoltaic glass assembly 21 has a unique photovoltaic DC cable 500 connected to the combiner box for both its positive and negative terminals.

[0060] In some implementations, such as Figure 4As shown, the photovoltaic glass assembly 21 includes only one photovoltaic glass panel 22. The two leads 401 of the photovoltaic glass assembly 21 (i.e. the single photovoltaic glass panel 22) are positive and negative respectively. These two leads 401 are connected to the lower end of the photovoltaic DC cable 500 in a one-to-one correspondence. That is, each lead 401 is connected to a unique photovoltaic DC cable 500. The lower end of the photovoltaic DC cable 500 is connected to the lead 401, and the upper end extends upward and connects to the combiner box.

[0061] Furthermore, considering that traditional photovoltaic curtain walls are complex to manufacture and install, have poor consistency with the building, and affect the convenience of on-site construction and installation.

[0062] In the embodiments of this disclosure, such as Figure 1 , Figure 8 As shown, the exterior wall 10 is provided with several horizontal beams 11 and several vertical beams 12. The arrangement of these horizontal beams 11 and vertical beams 12 can be understood as a typical installation support structure for a glass curtain wall. Support members 702 are provided on the horizontal beams 11; the arrangement of these support members 702 is also existing technology and will not be described in detail. Generally, the upper and lower sides of the photovoltaic glass panel 22 rest on two adjacent horizontal beams 11, and as shown... Figure 7 and Figure 8 As shown, the lower side of the photovoltaic glass panel 22 is supported on the support member 702. In the longitudinal direction, all photovoltaic glass panels 22 are arranged in this manner, resulting in a smaller gap between two adjacent photovoltaic glass panels 22 in the longitudinal direction. Furthermore, to ensure a lateral sealing effect between two adjacent photovoltaic glass panels 22, a third foam strip 703 with a general diameter of 18mm is placed in the gap for filling, and silicone weather-resistant sealant 706 is applied to the side of the third foam strip 703 away from the outer wall 10 for sealing. The lateral sides of the photovoltaic glass panel 22 extend to the longitudinal beam 12, extending to the side of the longitudinal beam 12 away from the outer wall 10, and are connected to the longitudinal beam 12 by a pressure block 100, so that the side of the pressure block 100 presses against the side of the lateral side of the photovoltaic glass away from the outer wall 10, thereby fixing the photovoltaic glass to the crossbeam 11. The decorative cover 300 has a receiving groove 301 with its opening facing the photovoltaic curtain wall 20. The receiving groove 301 is attached to the photovoltaic curtain wall 20 with its opening facing side, and the pressure block 100 is detachably connected to the side of the opening of the receiving groove 301.

[0063] Furthermore, such as Figure 1 , Figure 2 , Figure 3 and Figure 6As shown, in the horizontal direction of the photovoltaic curtain wall 20, there is an installation gap 23 between two adjacent photovoltaic glass panels 22. Generally, this installation gap 23 is directly opposite the central axis of the longitudinal beam 12. It should be noted that during normal operation, if a photovoltaic glass assembly 21 contains only one photovoltaic glass panel 22, we cannot assume that there is no installation gap 23 next to that photovoltaic glass panel 22. Because during normal construction, due to design and layout factors, when there is no adjacent photovoltaic glass panel 22 in the horizontal direction, there will be other decorative glass panels that replace the corresponding photovoltaic glass panel 22. These decorative glass panels can be understood as photovoltaic glass panels 22 without electrodes. Therefore, the installation gap 23 also exists between the horizontal edge of this decorative glass panel and the horizontal edge of the adjacent photovoltaic glass panel. Figure 3 and Figure 6 As shown, first elastic support members 701 are respectively provided on both sides of the longitudinal beam 12 away from the outer wall 10. That is, the first elastic support members 701 are located on both sides of the installation gap 23. The first elastic support members 701 are arranged longitudinally and are respectively supported between the longitudinal beam 12 and the photovoltaic glass panel 22. Thin anti-corrosion gaskets 707 are respectively provided on both sides of the pressure block 100 and the photovoltaic glass. An adjustable connection structure 200 is provided in the installation gap 23, and the pressure block 100 is connected to the longitudinal beam 12 through the adjustable connection structure 200. The first elastic support 701 has a certain thickness, allowing for elastic deformation. This enables variable support spacing between the photovoltaic glass panels and the support beams. Combined with the adjustable constraint of the adjustable connection structure 200 on the pressure block 100, the installation spacing between the photovoltaic glass panel 22 and the horizontal or vertical beams 11 can be reliably adjusted. This effectively ensures that the sides of different photovoltaic glass panels 22 facing away from the external wall 10 are flush both horizontally and vertically, achieving a "coplanar" installation effect. Unlike traditional installation structures, this avoids the difficulties in constraint adjustment and poor consistency. The anti-corrosion gasket 707 has a small thickness and negligible elastic deformation, preventing damage to the glass surface from hard contact between the pressure plate and the photovoltaic glass panel 22, while also avoiding the inconsistency that could arise from excessive thickness and elasticity of the anti-corrosion gasket 707 during installation.

[0064] In this embodiment of the disclosure, to ensure the reliability of the adjustable connection structure 200 and the convenience of adjustment and installation, the pressure block 100 is provided with a first through hole 101 facing the installation gap 23. Further, the adjustable connection structure 200 includes a connecting strip 204, a second elastic support member 201, a threaded connection hole 123, a first screw 203, a second screw 210, and a first nut 211.

[0065] like Figure 3 and Figure 6 As shown, the connecting strip 204 is located in the installation gap 23 and is arranged longitudinally along the installation gap 23. The connecting strip 204 has a screw groove 205 along its length. The two ends of the screw groove 205 are open and not closed. There are opposing flanges 206 on both sides of the opening direction. The bottom of the screw groove 205 has at least two penetrating second through holes 207, and the two second through holes 207 are arranged along the length of the connecting strip 204. The opening direction of the screw groove 205 is towards the direction away from the outer wall 10. The second elastic support 201 is supported between the connecting strip 204 and the longitudinal beam 12. The threaded connection hole 123 is arranged on the longitudinal beam 12 and corresponds to the second through hole 207. The first screw 203 is arranged in the screw groove 205, so that the large end of the first screw 203 is in the screw groove 205, and then the small end (i.e. the external thread setting end) passes out from the second through hole 207, and then the small end of the first screw 203 is threadedly connected to the threaded connection hole 123. Thanks to the support of the second elastic support 201, the connection between the connecting strip 204 and the longitudinal beam 12 is always maintained, ensuring that it does not loosen or fall off. Simultaneously, the posture of the connecting strip 204 can be adjusted according to the alignment requirements during the installation of the photovoltaic glass panel 22. This adjustment is achieved by rotating the first screw 203 to adjust the distance between the connecting strip 204 and the longitudinal beam 12.

[0066] The second screw 210 is positioned in the screw groove 205, with its large end in the groove and its small end (the threaded end) passing through the opening of the groove 205 and inserting into the first through hole 101. This allows the large end of the screw 210 to be supported on the inner side of the retaining edge 206. The first nut 211 is then positioned on the side of the pressure block 100 away from the connecting strip 204 and threadedly connected to the second screw 210. This allows the pressure block 100 to fix the photovoltaic glass panel 22 to the longitudinal beam 12 and the outer wall 10 by rotating the first nut 211 on the second screw 210. It also allows the pressure block 100 to align and level the photovoltaic glass panel 22, ensuring good consistency between the current photovoltaic glass panel 22 and surrounding photovoltaic glass panels 22. Furthermore, the adjustment method is simple, easy to operate, and ensures efficient construction. The screw groove 205 is not closed at both ends, which makes it convenient for the second screw 210 to be inserted into the screw groove 205 from the end position of the screw groove 205. It also facilitates the standardized and profiled production of the connecting strip 204.

[0067] In the embodiments of this disclosure, such as Figure 2As shown, in the longitudinal direction, a soft sealing body 209 is provided between the ends of two adjacent connecting strips 204. For example, silicone weather-resistant sealant 706 is used for filling and sealing. Firstly, the soft sealing body 209 seals the gap between the longitudinally adjacent connecting strips 204, preventing external foreign objects or rainwater from intruding between the photovoltaic glass panel 22 and the outer wall 10 from the current position. Secondly, it allows for slight deformation space between adjacent connecting strips 204 after installation, even under conditions of climate or other factors. This ensures that critical connections are not affected by stress deformation (thermal expansion and contraction due to climate and temperature differences) or slight deformation caused by other factors, while also guaranteeing airtightness.

[0068] Furthermore, such as Figure 3 and Figure 6 As shown, the longitudinal beam 12 is provided with a protruding ridge 121 protruding towards the connecting strip 204. On the side of the protruding ridge 121 facing the connecting strip 204, there are two first grooves 122 extending along the length direction of the longitudinal beam 12. The two first grooves 122 are respectively located on both sides of the threaded connecting hole 123. On the side of the connecting strip 204 facing the longitudinal beam 12, there are two second grooves 208 extending along its own length direction. The second grooves 208 are respectively located on both sides of the second through hole 207. The second elastic support member 201 includes two elastic sealing strips 202. The two sealing strips 202 are respectively provided on both sides of the second through hole 207, and the two sides of the sealing strips 202 in the width direction are respectively embedded in the first groove 122 and the second groove 208. First, the width of the elastic sealing strip 202 can be significantly larger than the distance between the connecting strip 204 and the longitudinal beam 12. When the connecting strip 204 is installed using the first screw 203, the connecting strip 204 and the longitudinal beam 12 will exert force on the sealing strip 202. The elasticity generated by the compression of the sealing strip 202 can form an elastic support between the connecting strip 204 and the longitudinal beam 12. Second, the connecting strip 204 will deform and expand under force, and then fill the first groove 122 and the second groove 208, forming a sealed connection between the sealing strip 202, the connecting strip 204, and the longitudinal beam 12. This can prevent external foreign objects or external rainwater from entering between the photovoltaic curtain wall 20 and the outer wall 10 through the second through hole 207 from the direction of the screw groove 205 during decades of use of the photovoltaic curtain wall 20.

[0069] Furthermore, such as Figure 3 and Figure 6As shown, a first foam strip 704 is provided between the connecting strip 204 and the side of the photovoltaic glass panel 22. The first foam strip 704 is filled between the connecting strip 204 and the photovoltaic glass panel 22 by compression. The side of the first foam strip 704 away from the longitudinal beam 12, the side of the photovoltaic glass panel 22 and the side of the connecting strip 204 together form a first U-shaped groove 705 with the opening direction away from the longitudinal beam 12. Silicone weather-resistant sealant 706 is provided to fill the first U-shaped groove 705. The first foam strip 704 is in a tight fit between the connecting strip 204 and the photovoltaic glass panel 22, supported by its own elasticity. This forms a support structure for the filling with silicone weather-resistant sealant 706. Combined with the stability of the first foam strip 704 and the sealing and durability of the silicone weather-resistant sealant 706, this ensures the sealing capability of the photovoltaic curtain wall for decades of use. Furthermore, the elasticity of both the silicone weather-resistant sealant 706 and the first foam strip 704 guarantees stability and safety during long-term use, eliminating concerns about external stress causing slight deformation between the connecting strip 204 and the photovoltaic glass panel 22 that could affect the sealing effect. When using the first foam strip 704 and silicone weather-resistant sealant 706 for sealing, the junction box 400 can be avoided, or it can be covered or wrapped. The only requirement is to ensure sealing performance and allow the lead wire 401 to pass through the sealed structure formed by the first foam strip 704 and silicone weather-resistant sealant 706.

[0070] Furthermore, such as Figure 6 and Figure 10 As shown, in order to ensure the ease of installation of the decorative cover 300 and the stability of its subsequent use, in the horizontal direction, the two sides of the pressure block 100 are respectively provided with connecting parts 102 that protrude away from the outer wall 10. To facilitate standardized and modular manufacturing, the decorative cover 300 is a thin-walled structural component. The receiving groove 301 has two sides with first folded edges 302 extending towards each other in the opening direction, and a second folded edge 303 extending vertically towards the outer wall 10 on the first folded edge 302. The second folded edge 303 is located outside the connecting part 102. A layer of anti-corrosion gasket 707 can also be provided between the second folded edge 303 and the connecting part 102. A connecting screw 305 is provided, passing through the second folded edge 303 and inserted into the connecting part 102. The second folded edge 303 is fixedly connected to the connecting part 102 by the threaded engagement of the connecting screw 305 and the connecting part 102, so that the first folded edge 302 and the second folded edge 303 form a second U-shaped groove 306 on the photovoltaic glass with the opening direction facing away from the pressure block 100. For ease of construction, the connecting screw 305 can be an automatic self-tapping screw, which can be quickly locked using a power tool during connection. After installation, the cavity formed by the decorative cover 300 covering the photovoltaic curtain wall 20 is the wiring channel 304.

[0071] like Figure 3 and Figure 6 As shown, a second foam strip 307 is provided in the second U-shaped groove 306. The second foam strip is pressed into the second U-shaped groove 306 to fill it. There is a gap between the side of the second foam strip 307 away from the pressure block 100 and the opening edge of the second U-shaped groove 306, forming a third U-shaped groove 308 at the opening of the second U-shaped groove 306. The third U-shaped groove 308 is filled with silicone weather-resistant sealant 706. The second foam strip 307 is in a tightly fitted state within the second U-shaped groove 306 due to its own elasticity, exhibiting good stability. The silicone weather-resistant sealant 706 then fills the third U-shaped groove 308, forming a good, stable, and long-lasting sealing structure that ensures stable and reliable use over many years.

[0072] In some embodiments, to further ensure the reliability of the sealing structure, a black coating layer formed by applying silicone weather-resistant sealant 706 is applied to both sides of the photovoltaic glass panel 22 before installation. After the sides of the photovoltaic glass panel 22 are blackened, there is a larger contact area between the silicone weather-resistant sealant 706 and the photovoltaic glass panel 22, thereby forming a better sealing connection effect. Subsequently, the silicone weather-resistant sealant 706 filling of the third U-shaped groove 308 directly contacts the black coating layer, making the sealing contact between the silicone weather-resistant sealant 706 filling and the photovoltaic glass panel 22 more stable and reliable.

[0073] In some implementations, such as Figure 7 and Figure 8 As shown, silicone structural adhesive 708 is also provided between the side of the photovoltaic glass panel 22 facing the outer wall 10 and the crossbeam 11. The silicone structural adhesive 708 is used for two purposes: first, to assist in the fixing of the adhesive; and second, to provide elastic sealing.

[0074] Thus, through the above-described method, the photovoltaic curtain wall 20, and even the exterior of each photovoltaic glass panel 22, between the photovoltaic curtain wall 20 and the outer wall 10, possesses at least two layers of stable and reliable waterproof sealing structure. This ensures a long-term, stable sealing structure for the photovoltaic curtain wall 20 to withstand direct exposure to the elements in complex climatic environments for many years. It prevents external impurities or rainwater from intruding between the photovoltaic curtain wall 20 and the outer wall 10, causing damage to the unwaterproofed wall or other structures, and also prevents damage to the electrical circuit structure. This avoids difficulties in maintenance and high maintenance costs after damage.

[0075] In the embodiments of this disclosure, such as Figure 9 and Figure 10As shown, several vertical fixing points 600 are longitudinally distributed in the wiring channel 304. The photovoltaic DC cable 500 passes through and is fixed by these vertical fixing points 600. Generally, the vertical fixing points 600 are evenly spaced longitudinally in the wiring channel 304, for example, one every 1-2 meters. During construction, the photovoltaic DC cable 500 is fixed every 1-2 meters using the vertical fixing points 600. This serves two purposes: first, it constrains the photovoltaic DC cable 500 and other cables, preventing unrestrained flying wires and facilitating later maintenance; second, it constrains the photovoltaic DC cable 500, preventing breakage due to its own weight or other external factors. Especially if the photovoltaic DC cable 500 breaks, and only the internal core is broken, the maintenance burden is heavy and difficult to inspect. Furthermore, if the break leads to a loose connection, it can easily overheat and catch fire during use, posing a very high safety risk. Therefore, by setting vertical fixing positions 600 to fix the photovoltaic DC cables 500 at certain intervals, the shortcomings of unrestrained flying wires in the existing technology are overcome. Specifically, this overcomes the problem that the vertical cables of high-rise or super high-rise photovoltaic curtain walls are usually quite long, especially the photovoltaic DC cables 500 which extend downwards from the roof along the curtain wall with a large span and lack reliable vertical fixing measures. This easily leads to the self-weight of the photovoltaic DC cables pulling on the cables, potentially causing them to break after long-term operation. Simultaneously, it overcomes the problem of photovoltaic connectors being affected by the long-term vertical tension of the cables, which can lead to connector detachment or poor contact, avoiding the risk of DC arcing and subsequent electrical fires. This greatly ensures the stability, reliability, and safety of the photovoltaic curtain wall 20.

[0076] In some implementations, such as Figure 9 and Figure 11As shown, the vertical line fixing position 600 includes two first clamping plates 601, a second clamping plate 602, and a third screw 603. Each of the first clamping plates 601 and 602 includes a first plate body 604 and third flanges 605 protruding from both ends of the first plate body 604. The two third flanges 605 and the first plate body 604 together form a first line receiving groove 606. Each third flange 605 is provided with a connecting ear 607 extending away from the other third flange 605, and a third through hole 608 is provided on the connecting ear 607. The first clamping plate 601 is fixedly installed. During fixing, a sixth through hole 609 can be provided on the first clamping plate 601, and then a screw can be passed through the sixth through hole 609 to fix the first clamping plate 601. For example, the first clamping plate 601 can be attached to the pressure block 100, and then fixed by the second screw 210 in conjunction with the first nut 211. Of course, the first clamping plate 601 can also be fixed with special screws or devices. Then, the second clamping plate 602 is placed on the opposite side of the first clamping plate 601, with the two first cable trays 606 facing each other; the photovoltaic DC cable 500 can then be placed in the two first cable trays 606. Then, two third screws 603 are provided, passing through the third through holes 608 of the first clamping plate 601 and the second clamping plate 602 from both ends of the first plate body 604. A second nut 610 is provided on the third screw 603, so that the first clamping plate 601 and the second clamping plate 602 are connected by the second nut 610 and the third screw 603. Furthermore, the first clamping plate 601 and the second clamping plate 602 are constrained by the third screw 603 and the second nut 610, so that the cable (photovoltaic DC cable 500) is fixed by the clamping of the first plate body 604.

[0077] In some implementations, such as Figure 10 and Figure 12As shown, the vertical wire fixing position 600 includes a third clamping plate 611, a fourth clamping plate 612, and a fourth screw 613; the fourth screw 613 is fixedly disposed in the wire routing channel 304, for example, fixedly disposed on the connecting strip 204. The third clamping plate 611 includes a second plate body 614 and a fourth flange 615 protruding at both ends of the second plate body 614. The two fourth flanges 615 together with the second plate body 614 form a second wire receiving groove 616, and the second plate body 614 is provided with a fourth through hole 617. The third clamping plate 611 is disposed on the fourth screw 613, so that the fourth screw 613 is inserted into the fourth through hole 617, and a third nut 618 is provided on the fourth screw 613 to fix the third clamping plate 611; the fourth clamping plate 612 includes a third plate body 619 and a fourth flange 612 protruding at both ends of the second plate body 614. The fifth folds 620 are placed at both ends of the third plate 619, and together with the third plate 619, they form a third wire receiving groove 621. The second plate 614 is provided with a fifth through hole 622. The fourth clamping plate 612 is placed on the fourth screw 613, so that the fourth screw 613 is inserted into the fifth through hole 622 and the third wire receiving groove 621 is opposite to the second wire receiving groove 616. A fourth nut 623 is provided on the fourth screw 613, so that the fourth clamping plate 612 is pressed against the third clamping plate 611 by the fourth nut 623.

[0078] That is, when fixing the photovoltaic DC cable 500, the photovoltaic DC cable 500 is placed in the second cable tray 616 and the third cable tray 621, and the fourth nut 623 presses against the fourth clamping plate 612 in the direction of the third clamping plate 611, thereby clamping and fixing the photovoltaic DC cable 500.

[0079] Regarding the fixing of the third clamping plate 611, the fourth screw 613 has a large end that is set into the screw groove 205, and then the small end of the fourth screw 613 (the end with external threads) extends out from the opening of the screw groove 205 and is inserted into the fourth through hole 617, and then the second plate 614 is fixed by cooperating with the third nut 618. In order to prevent the lateral sides of the third clamping plate 611 from affecting the photovoltaic glass panel 22, a spacer 624 is set between the second plate 614 and the connecting strip 204. The support of the spacer 624 prevents the third clamping plate 611 from exerting pressure on the photovoltaic glass panel 22 in the direction of the outer wall 10.

[0080] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A photovoltaic curtain wall electrical cable installation structure, applied to a photovoltaic curtain wall, wherein the photovoltaic curtain wall is installed on the exterior wall of a building, the photovoltaic curtain wall includes a plurality of photovoltaic glass panels, and pressure blocks are provided on both sides of the photovoltaic glass panels, and the pressure blocks press against the lateral edges of the photovoltaic glass panels toward the exterior wall to fix the photovoltaic glass panels to the exterior wall, characterized in that, The electrical cable installation structure for the photovoltaic curtain wall includes: The decorative cover extends longitudinally, covering the pressure block and the side of the photovoltaic curtain wall away from the outer wall, so that a longitudinally extending wiring channel is formed inside the decorative cover; Junction boxes are respectively disposed on two lateral sides of the photovoltaic glass panel, such that one junction box is a positive output and the other is a negative output. The junction box is provided with lead wires for electrical conduction, and the lead wires are placed in the wiring channel. A photovoltaic DC cable is longitudinally arranged in the cable routing channel; A photovoltaic glass assembly, comprising at least one of the photovoltaic glass panels; When the photovoltaic glass assembly includes multiple photovoltaic glass panels, the leads of adjacent photovoltaic glass panels are connected in series according to the sorting order, and the leads that are not connected in series in the photovoltaic glass assembly are connected to the lower end of the photovoltaic DC cable one by one. or, When the photovoltaic glass assembly includes one of the photovoltaic glass panels, the leads of the photovoltaic glass panel are connected one-to-one to the lower end of the photovoltaic DC cable; The wiring channel has several vertical fixing positions distributed longitudinally. The photovoltaic DC cable passes through the vertical fixing positions and is fixed by the vertical fixing positions. The vertical line fixing position includes two first clamping plates, a second clamping plate, and a third screw; Both the first clamping plate and the second clamping plate include a first plate body and a third folded edge protruding at both ends of the first plate body. The two third folded edges together with the first plate body form a first wire receiving groove. Each third folded edge is provided with a connecting ear extending in a direction away from the other third folded edge. The connecting ear is provided with a third through hole. The first clamping plate is fixedly installed, and the second clamping plate is installed on the opposite side of the first clamping plate, so that the two first wire receiving grooves are opposite to each other; Two third screws are provided, which pass through the third through holes of the first clamping plate and the second clamping plate from both ends of the first plate body. A second nut is provided on the third screw so that the first clamping plate and the second clamping plate are connected by the second nut cooperating with the third screw.

2. The photovoltaic curtain wall electrical cable installation structure according to claim 1, characterized in that, The exterior wall is provided with several horizontal beams and several vertical beams, and the horizontal beams are provided with support members, and the lower side of the photovoltaic glass panel is supported on the support members; The photovoltaic glass panel extends laterally to the longitudinal beam on both sides, extending to the side of the longitudinal beam away from the outer wall, and is connected to the longitudinal beam by a pressure block, so that the side of the pressure block abuts against the side of the photovoltaic glass that is away from the outer wall, thereby fixing the photovoltaic glass to the beam. The decorative cover has a receiving groove with an opening direction facing the photovoltaic curtain wall, and the side of the receiving groove with the opening direction is detachably connected to the pressure block.

3. The photovoltaic curtain wall electrical cable installation structure according to claim 2, characterized in that, In the horizontal direction of the photovoltaic curtain wall, there is an installation gap between two adjacent photovoltaic glass panels; The longitudinal beam is provided with first elastic support members on both sides of the side away from the outer wall. The first elastic support members are arranged longitudinally and are respectively supported between the longitudinal beam and the photovoltaic glass panel. Anti-corrosion gaskets are provided on both sides of the pressure block, and the anti-corrosion gaskets are disposed between the pressure block and the photovoltaic glass. An adjustable connection structure is provided in the installation gap, and the pressure block is connected to the longitudinal beam through the adjustable connection structure.

4. The photovoltaic curtain wall electrical cable installation structure according to claim 3, characterized in that, The pressure block is provided with a first through hole facing the installation gap; The adjustable connection structure includes: A connecting strip is located in the installation gap and is arranged longitudinally along the installation gap. The connecting strip has a screw groove along its length direction. The screw groove is open at both ends to form an opening, and there are opposing extending flanges on both sides of the opening direction. The bottom of the screw groove has at least two penetrating second through holes, and the two second through holes are arranged along the length direction of the connecting strip. The opening direction of the screw groove faces away from the outer wall. A second elastic support member is supported between the connecting strip and the longitudinal beam; A threaded connection hole is provided on the longitudinal beam corresponding to the second through hole; The first screw is disposed in the screw groove and is threadedly connected to the threaded connection hole after passing through the second through hole; The second screw is disposed in the screw groove, and the second screw is inserted into the first through hole after passing through the opening of the screw groove; The first nut is located on the side of the pressure block away from the connecting strip and is threadedly connected to the second screw.

5. The photovoltaic curtain wall electrical cable installation structure according to claim 4, characterized in that, In the longitudinal direction, a soft sealing body is provided between the ends of two adjacent connecting strips; The longitudinal beam is provided with a protruding ridge that protrudes toward the connecting strip. On the side of the protruding ridge facing the connecting strip, there are two first grooves extending along the length of the longitudinal beam. The two first grooves are respectively located on both sides of the threaded connection hole. The connecting strip has two second grooves extending along its own length on the side facing the longitudinal beam, and the second grooves are respectively located on both sides of the second through hole; The second elastic support includes two elastic sealing strips, which are respectively disposed on both sides of the second through hole, and the two sides of the sealing strips in the width direction are respectively embedded in the first groove and the second groove.

6. The photovoltaic curtain wall electrical cable installation structure according to claim 4, characterized in that, A first foam strip is provided between the connecting strip and the side of the photovoltaic glass panel. The first foam strip is filled between the connecting strip and the photovoltaic glass panel by compression, and the side of the first foam strip away from the longitudinal beam, the side of the photovoltaic glass panel and the side of the connecting strip together form a first U-shaped groove with the opening direction away from the longitudinal beam. The first U-shaped groove is filled with silicone weather-resistant sealant.

7. The photovoltaic curtain wall electrical cable installation structure according to claim 2, characterized in that, In the lateral direction, the pressure block has connecting parts on both sides that protrude away from the outer wall; The receiving groove has two sides with first folded edges extending towards each other in the opening direction, and a second folded edge extending vertically towards the outer wall direction on the first folded edge. The second folded edge is located outside the connecting part, and a connecting screw is inserted into the connecting part after passing through the second folded edge. The second folded edge is fixedly connected to the connecting part by the threaded engagement of the connecting screw with the connecting part, and the first folded edge and the second folded edge form a second U-shaped groove on the photovoltaic glass with the opening direction facing away from the pressing block direction. A second foam strip is provided in the second U-shaped groove. The second foam strip is pressed into the second U-shaped groove to fill the second U-shaped groove. There is a gap between the side of the second foam strip away from the pressing block and the side edge of the opening of the second U-shaped groove, so that a third U-shaped groove is formed at the opening of the second U-shaped groove. The third U-shaped groove is filled with silicone weather-resistant sealant.

8. The photovoltaic curtain wall electrical cable installation structure according to claim 1, characterized in that, The vertical line fixing position includes a third clamping plate, a fourth clamping plate, and a fourth screw; The fourth screw is used for fixing; The third clamping plate includes a second plate body and fourth flanges protruding from both ends of the second plate body. The two fourth flanges together with the second plate body form a second receiving groove. The second plate body is provided with a fourth through hole. The third clamping plate is disposed on the fourth screw, so that the fourth screw is inserted into the fourth through hole. A third nut is disposed on the fourth screw to fix the third clamping plate. The fourth clamping plate includes a third plate body and fifth folded edges protruding from both ends of the third plate body. The two fifth folded edges together with the third plate body form a third wire receiving groove. The second plate body is provided with a fifth through hole. The fourth clamping plate is disposed on the fourth screw, so that the fourth screw is inserted into the fifth through hole and the third wire receiving groove is opposite to the second wire receiving groove. A fourth nut is provided on the fourth screw so that the fourth nut presses against the fourth clamping plate in the direction of the third clamping plate.

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