Construction method of photovoltaic outer wall

By embedding photovoltaic modules in concrete, combined with structural panels and liquid-cooled connecting pipes, the problems of high construction difficulty and low stability of photovoltaic panels are solved, achieving a stable and efficient photovoltaic exterior wall structure, and improving power generation efficiency and lifespan.

CN117231007BActive Publication Date: 2025-12-05CHINA CONSTR EIGHT ENG DIV CORP LTD
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Patent Information

Application Number
CN202311280922.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-09-28
Publication Date
2025-12-05
Estimated Expiration
2043-09-28

AI Technical Summary

Technical Problem

Existing methods of mounting photovoltaic panels on the exterior surface of buildings have problems such as high construction difficulty, high cost, low stability, and easy damage to wiring.

Method used

Photovoltaic modules are embedded in concrete, and the photovoltaic modules are reinforced by a combination of structural panels and liquid-cooled connecting pipes. Combined with glass panels for protection, a stable photovoltaic exterior wall structure is formed.

Benefits of technology

It improves the robustness and power generation efficiency of photovoltaic modules, reduces construction difficulty and cost, and protects photovoltaic modules from external corrosion, extending their service life.

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Abstract

The application relates to a construction method of a photovoltaic outer wall, which comprises the following steps: providing a plurality of structural plates and a plurality of photovoltaic assemblies, mounting the photovoltaic assemblies on the plate surfaces of the structural plates, forming wiring holes in the structural plates corresponding to photovoltaic connecting lines of the photovoltaic assemblies, extending the photovoltaic connecting lines outside the structural plates through the wiring holes, providing glass plates, fixedly mounting the structural plates on the sides, away from the photovoltaic assemblies, of the glass plates, providing liquid cooling connecting pipes, fixedly mounting the liquid cooling connecting pipes on the sides, away from the photovoltaic assemblies, of the structural plates, pouring back-pouring concrete sections on the sides, away from the photovoltaic assemblies, of the structural plates, extending part of the structural plates outside the back-pouring concrete sections to form connecting sections, fixedly connecting the end portions of two connecting sections to form setting sections, connecting the photovoltaic connecting lines of two adjacent photovoltaic assemblies to the setting sections, and pouring concrete in the setting sections to form connecting concrete sections.
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Description

TECHNICAL FIELD

[0001] The application relates to the field of building engineering, in particular to a construction method of a photovoltaic outer wall. BACKGROUND

[0002] With the increasing demand for renewable energy worldwide, the construction industry is also constantly seeking ways to improve the energy efficiency of buildings and reduce carbon emissions. Building-integrated photovoltaics (BIPV) technology, as a way to combine photovoltaics with building structures, provides a high-efficiency, green energy solution for the construction industry. By using BIPV technology, buildings can achieve self-sufficiency in clean energy while maintaining aesthetics and functionality, reducing dependence on non-renewable energy sources, and improving the sustainability of buildings. Building-integrated photovoltaics technology makes full use of the surface of buildings, combining photovoltaic power generation with building structures to achieve energy saving and aesthetics of buildings. Building-integrated photovoltaics technology can be applied to various parts of buildings, such as roofs, walls, balconies, etc., to provide clean energy for buildings while improving their green performance.

[0003] The current common way to set up photovoltaic panels is to set up a hanging rack on the outer surface of the building, and hang the photovoltaic panels on the hanging rack, but this requires setting up multiple hanging rack systems on the wall, increasing the construction difficulty and cost, delaying the project cycle, and the photovoltaic panels hung on the building are not very firm and can easily be blown off or impacted by external air, and the wiring requirements for the photovoltaic panels are high, otherwise the exposed part of the wiring can be damaged and cause a short circuit, resulting in a loss of power generation capacity. SUMMARY

[0004] The purpose of the present application is to overcome the defects of the prior art and provide a construction method of a photovoltaic outer wall, which embeds photovoltaic modules in concrete to ensure the stability and firmness of the photovoltaic module hanging.

[0005] The technical solution to achieve the above-mentioned purpose is a construction method of a photovoltaic outer wall, comprising the following steps:

[0006] A plurality of structural plates and a plurality of photovoltaic modules are provided, the photovoltaic modules are installed on the plate surface of the structural plates, the structural plates are formed with wiring holes corresponding to the photovoltaic connection lines of the photovoltaic modules, and the photovoltaic connection lines extend outside the structural plates through the wiring holes;

[0007] A glass plate is provided, and the glass plate is fixedly installed on the side of the photovoltaic module away from the structural plate;

[0008] A liquid cooling connection pipe is provided, and the liquid cooling connection pipe is fixedly installed on the side of the structural plate away from the photovoltaic module;

[0009] casting a back-pouring concrete section on a side of the structural plate away from the photovoltaic module, the back-pouring concrete section reserving part of the side edges of the structural plate to form the connecting section;

[0010] connecting the end portions of two adjacent connecting sections to form a setting section, and connecting the photovoltaic connecting lines of two adjacent photovoltaic modules to the setting section;

[0011] casting concrete in the setting section to form a connecting concrete section, the surface of the connecting concrete section being flush with the surface of the back-pouring concrete section after solidification.

[0012] Further, the end portions of the liquid-cooled connecting pipe are arranged on the connecting sections on both sides of the structural plate,

[0013] When connecting two adjacent structural plates, the liquid-cooled connecting pipes of the two adjacent structural plates are connected to communicate with each other.

[0014] Further, when fixing the liquid-cooled connecting pipe to the structural plate, the liquid-cooled connecting pipe is continuously bent to be arranged on the surface of the structural plate.

[0015] Further, the end portion of the connecting section is provided with a connecting hole;

[0016] When connecting two adjacent structural plates, a fixing rod is inserted into the connecting holes of the two adjacent connecting sections to fixedly connect the two structural plates.

[0017] Further, the end portion of the connecting section is provided with a placing hole;

[0018] A moving frame is provided, the end portion of the moving frame is provided with an insertion rod corresponding to the placing hole, the insertion rod is arranged in the placing hole on both sides of the structural plate to fix the structural plate,

[0019] When connecting two adjacent structural plates, the moving frame is moved to carry the structural plate.

[0020] Further, the placing hole is provided with a plurality of placing holes.

[0021] Further, the moving frame comprises a first moving rod and a second moving rod, one end of the first moving rod and the second moving rod forms the insertion rod, the other end of the first moving rod extends towards the second moving rod to form a first extension section, the end portion of the first extension section is provided with a connecting block, the other end of the second moving rod extends towards the first moving rod to form a second extension section, the end portion of the second extension section is provided with a sleeve corresponding to the connecting block;

[0022] The connecting block is sleeved on the sleeve, and the sleeve and the connecting block are fixed by bolts to fix the first moving rod and the second moving rod.

[0023] Further, the protective shell is fixedly installed in the setting section, and the protective shell is sleeved on the two photovoltaic connecting lines.

[0024] Further, when the glass plate is fixedly installed, structural glue is filled between the glass plate and the photovoltaic module to fill the gap between the glass plate and the photovoltaic module.

[0025] Further, when the reverse concrete section is poured, a reinforcing steel bar hole for subsequent installation is reserved in the reverse concrete section.

[0026] Compared with the prior art, the present application has the following beneficial effects:

[0027] By adopting the prefabricated structural plate and the photovoltaic module, the time and period of on-site construction are reduced, by installing the photovoltaic module in the reverse concrete section, the hanging strength of the photovoltaic module is improved, by arranging the liquid cooling connecting pipe on the structural plate, the temperature of the photovoltaic module during use can be effectively reduced, and the power generation efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a whole structure diagram of the construction method of the photovoltaic outer wall.

[0029] Figure 2 It is a whole structure diagram of the construction method of the photovoltaic outer wall.

[0030] Figure 3 It is a rear view of the construction method of the photovoltaic outer wall.

[0031] Figure 4 It is a front view of the construction method of the photovoltaic outer wall.

[0032] Figure 5 It is a whole structure diagram of the construction method of the photovoltaic outer wall.

[0033] Legend: 1, reverse concrete section; 2, structural plate; 21, liquid cooling connecting pipe; 22, placing hole; 23, connecting hole; 3, photovoltaic module; 31, photovoltaic connecting line; 4, glass plate; 5, connecting concrete section. DETAILED DESCRIPTION

[0034] The present application will be further described below in combination with the drawings and specific embodiments.

[0035] Reference Figure 1 ,Figure 3 and Figure 5 A construction method of a photovoltaic outer wall comprises the following steps: providing a plurality of structural plates 2 and a plurality of photovoltaic assemblies 3, mounting the photovoltaic assemblies 3 on the plate surface of the structural plates 2, the structural plates 2 are provided with wiring holes corresponding to the photovoltaic connecting lines 31 of the photovoltaic assemblies 3, the photovoltaic connecting lines 31 extend outside the structural plates 2 through the wiring holes; providing a glass plate 4, fixedly mounting the glass plate 4 on the side of the photovoltaic assemblies 3 away from the structural plates 2; providing a liquid cooling connecting pipe 21, fixedly mounting the liquid cooling connecting pipe 21 on the side of the structural plates 2 away from the photovoltaic assemblies 3; pouring a back-pouring concrete section 1 on the side of the structural plates 2 away from the photovoltaic assemblies 3, the back-pouring concrete section 1 is provided with a connecting section formed by reserving part of the side edge of the structural plate 2, the end portions of two adjacent connecting sections are fixedly connected to form a setting section, and the photovoltaic connecting lines 31 of two adjacent photovoltaic assemblies 3 are connected to the setting section; pouring concrete in the setting section to form a connecting concrete section 5, and the surface of the connecting concrete section 5 after solidification is flush with the surface of the back-pouring concrete section 1.

[0036] In the present application, a preferred embodiment is to provide the structural plates 2 and the photovoltaic assemblies 3, the number of the structural plates 2 and the photovoltaic assemblies 3 is determined according to actual needs, the photovoltaic assemblies 3 and the structural plates 2 are assembled, and the glass plate 4 is arranged on the outer side of the photovoltaic assemblies 3 to protect the photovoltaic assemblies 3, which can avoid the photovoltaic assemblies 3 from being eroded by external wind and rain, dust or other external factors without interfering with the power generation of the photovoltaic assemblies 3, prolong the service life of the photovoltaic assemblies 3, and ensure the aesthetic degree of the wall body, the liquid cooling connecting pipe 21 is arranged on the structural plate 2, a plurality of the structural plates 2 are connected, and concrete is poured between the back-pouring concrete sections 1 to form the connecting concrete section 5 to reinforce the structural plates 2, a wall body is formed, the wall body is installed on the surface of a building to be installed through the back-pouring process to complete the construction of the photovoltaic wall body, or is directly used as a wall structure.

[0037] Referring to Figure 2 and Figure 4 Further, the ends of the liquid cooling connecting pipes 21 are arranged on the connecting sections on the two sides of the structural plates 2, the liquid cooling connecting pipes 21 of two adjacent structural plates 2 are connected to communicate the two adjacent liquid cooling connecting pipes 21 when the back-pouring concrete section 1 is poured on the structural plate 2. By connecting two liquid cooling connecting pipes 21, the use of pipe fittings is reduced, and in actual use, only water or cooling liquid needs to be injected on one side of the wall body to cool the entire wall body.

[0038] Further, when fixing the liquid cooling connecting pipe 21 to the structural plate 2, the liquid cooling connecting pipe 21 is continuously bent to be arranged on the plate surface of the structural plate 2. By arranging the liquid cooling connecting pipe 21 on the structural plate 2 in the form of continuous bending, the liquid cooling connecting pipe 21 can comprehensively cool the structural plate 2 and the photovoltaic module 3.

[0039] Further, the end of the connecting section is provided with a connecting hole 23; when the structural plate 2 is poured with the back-pouring concrete section 1, a fixing rod is inserted into the connecting holes 23 of the two adjacent connecting ends to fix the two structural plates 2.

[0040] Further, the end of the connecting section is provided with a placing hole 22; a movable frame is provided, and the end of the movable frame is provided with an insertion rod corresponding to the placing hole 22; the insertion rod is arranged in the placing hole 22 on the two sides of the structural plate 2 to fix the structural plate 2; when the structural plate 2 is poured with the back-pouring concrete section 1, the movable frame is moved to carry the structural plate 2. In the present application, the structural plate 2 is too large in size to be conveniently carried by personnel, so the movable frame is provided to facilitate the carrying and subsequent construction of the structural plate 2 by construction personnel.

[0041] Further, the placing hole 22 is provided with a plurality of placing holes 22. By providing a plurality of placing holes 22, a plurality of movable frames are provided to facilitate the movement of the structural plate 2.

[0042] Further, the movable frame comprises a first movable rod and a second movable rod, one end of the first movable rod and the second movable rod forms the insertion rod, the other end of the first movable rod extends towards the second movable rod to form a first extension section, the end of the first extension section is provided with a connecting block, the other end of the second movable rod extends towards the first movable rod to form a second extension section, the end of the second extension section is provided with a sleeve corresponding to the connecting block; the connecting block is sleeved on the sleeve, and the sleeve and the connecting block are fixed by bolts to fix the first movable rod and the second movable rod.

[0043] Further, a protective shell is fixedly installed in the setting section, and the protective shell is sleeved on the two photovoltaic connecting lines 31.

[0044] Further, when the glass plate 4 is fixedly installed, structural glue is filled between the glass plate 4 and the photovoltaic module 3 to fill the gap between the glass plate 4 and the photovoltaic module 3.

[0045] Further, when the back-pouring concrete section 1 is poured, a steel bar hole is reserved in the back-pouring concrete section 1 for subsequent installation.

[0046] The use process of the construction method of the photovoltaic outer wall is described below.

[0047] The structural plate 2 and the photovoltaic assembly 3 are provided, the number of the structural plate 2 and the photovoltaic assembly 3 is determined according to actual demand, the photovoltaic assembly 3 and the structural plate 2 are assembled, and the glass plate 4 is arranged outside the photovoltaic assembly 3 to protect the photovoltaic assembly 3, which can avoid the photovoltaic assembly 3 from being eroded by wind, rain, dust or other external factors without interfering with the power generation of the photovoltaic assembly 3, prolong the service life of the photovoltaic assembly 3, and ensure the aesthetic degree of the wall body. The liquid cooling connecting pipe 21 is arranged on the structural plate 2, the liquid cooling connecting pipe 21 is continuously bent to be arranged on the plate surface of the structural plate 2, the back-pouring concrete section 1 is poured on the structural plate 2, the structural plate 2 is connected by a plurality of structural plates 2, and the connecting concrete section 5 is formed by pouring concrete between the back-pouring concrete sections 1 to reinforce the structural plate 2, so as to form a wall body. The wall body is installed on the surface of the building to be installed by the back-pouring process, so as to complete the construction of the photovoltaic wall body, or directly used as a wall structure.

[0048] The application is described in detail above in combination with the embodiments of the drawings, and those skilled in the art can make various changes to the application according to the above description. Therefore, some details in the embodiments should not constitute a limitation on the application, and the scope of protection of the application is defined by the appended claims.

Claims

1. A method of constructing a photovoltaic facade, characterized in that, The method comprises the following steps: providing a plurality of structural plates and a plurality of photovoltaic modules, mounting the photovoltaic modules on the plate surface of the structural plates, forming a wiring hole on the structural plate corresponding to the photovoltaic connection line of the photovoltaic module, and extending the photovoltaic connection line outside the structural plate through the wiring hole; providing a glass plate, and fixedly mounting the glass plate on the side of the photovoltaic module away from the structural plate; providing a liquid cooling connection pipe, and fixedly mounting the liquid cooling connection pipe on the side of the structural plate away from the photovoltaic module; pouring a back-poured concrete section on the side of the structural plate away from the photovoltaic module, reserving a part of the side edge of the structural plate to form a connecting section, and providing a placing hole at the end of the connecting section; fixedly connecting the ends of two adjacent connecting sections to form a setting section, and connecting the photovoltaic connection lines of two adjacent photovoltaic modules to the setting section; pouring concrete in the setting section to form a connecting concrete section, and making the surface of the connecting concrete section flush with the surface of the back-poured concrete section after solidification; respectively arranging the ends of the liquid cooling connection pipes on the connecting sections on both sides of the structural plate, when connecting two adjacent structural plates, connecting the liquid cooling connection pipes of the two adjacent structural plates to communicate the two adjacent liquid cooling connection pipes; the moving frame comprises a first moving rod and a second moving rod, one end of the first moving rod and the second moving rod forms the inserting rod, the other end of the first moving rod extends towards the second moving rod to form a first extension section, the end of the first extension section is provided with a connecting block, the other end of the second moving rod extends towards the first moving rod to form a second extension section, and the end of the second extension section is provided with a sleeve corresponding to the connecting block; sleeving the connecting block in the sleeve, and fixedly connecting the sleeve and the connecting block through bolts to fix the first moving rod and the second moving rod.

2. The method for constructing a photovoltaic outer wall according to claim 1, wherein when fixing the liquid cooling connection pipe to the structural plate, continuously bending the liquid cooling connection pipe to arrange it on the plate surface of the structural plate.

3. The method of claim 1, wherein the method further comprises: providing a plurality of photovoltaic modules; and mounting the plurality of photovoltaic modules to the plurality of vertical supports. the end of the connecting section is provided with a connecting hole; when connecting two adjacent structural plates, inserting a fixing rod into the connecting holes of the two adjacent connecting ends to fixedly connect the two structural plates.

4. The photovoltaic outer wall construction method according to claim 1, characterized in that: arranging the inserting rod in the placing hole on both sides of the structural plate to fix the structural plate, when connecting two adjacent structural plates, moving the moving frame to transport the structural plate.

5. The method for constructing a photovoltaic outer wall according to claim 4, characterized in that: the placing hole is provided with a plurality of placing holes.

6. The construction method of a photovoltaic exterior wall according to claim 1, characterized in that: [the method is described in the original text]. a protective shell is fixedly installed in the setting section, and the protective shell sleeves the two photovoltaic connection lines.

7. The method of claim 1, wherein: when fixedly installing the glass plate, filling structural glue between the glass plate and the photovoltaic module to fill the gap between the glass plate and the photovoltaic module. ​ 8. The method of claim 1, wherein the photovoltaic exterior wall is constructed by: when pouring the back-poured concrete section, reserving a steel bar hole in the back-poured concrete section for subsequent installation. ​

Citation Information

Patent Citations

  • Prefabricated photovoltaic wallboard and manufacturing method

    CN114645600A