A connecting device for a photovoltaic wall and an installation method thereof

Abstract

The present invention discloses a connecting device for a photovoltaic wall, which is used to fix two adjacent wall panels and a thin-film photovoltaic module, and includes: two connecting components and a connecting rod. The two connecting components are respectively fixed on the two wall panels, and the two connecting components are fixedly connected through the connecting rod. The connecting component includes a connecting plate and a pressing plate. The connecting plate is fixed on the wall panel, the end of the connecting rod is detachably and fixedly connected to the connecting plate, and the pressing plate is detachably fixed on the top of the connecting plate for pressing and fixing the edge of the thin-film photovoltaic module on the connecting plate. The present invention can not only improve the integration degree of photovoltaic building integration, reduce the manufacturing cost of the connecting members required for connecting the wall panel and the thin-film photovoltaic module, but also avoid the damage to the waterproof and heat preservation performance of the original building caused by secondary construction, and has the advantages of convenient construction, simple installation and high installation stability.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic power generation, and in particular to a connecting device for a photovoltaic wall and an installation method thereof. Background Art

[0002] In recent years, the building-integrated photovoltaic technology has been widely applied in buildings. This technology refers to using photovoltaic cells to replace traditional building materials and integrating them into building envelope structures such as roofs, windows, facades, balconies, skylights, etc. It is an effective form of the combination of solar photovoltaic power generation and buildings and is one of the most potential solar energy collection technologies in urban areas. The photovoltaic power generation curtain wall mainly uses photovoltaic modules to generate electricity and then dissipates heat through a ventilation and heat dissipation channel to reduce the temperature of the photovoltaic modules.

[0003] Currently, in prefabricated buildings, the connection between adjacent wall panels is generally poured separately on-site. In the existing photovoltaic wall technology, the wall panels are in a groove form, and the connecting pieces between the photovoltaic modules and the wall panels also need to be designed and installed separately. This form of independent connection may damage the waterproofing and heat preservation of the original building, and the damage is irreversible. Moreover, it increases materials, the installation is cumbersome, and secondary construction is generated, which is not conducive to the rapid popularization and development of photovoltaic buildings. Summary of the Invention

[0004] Aiming at the above problems existing in the assembly of existing photovoltaic modules and wall panels, the present invention aims to provide a connecting device for a photovoltaic wall and an installation method thereof with simple assembly, high applicability and stable installation.

[0005] The specific technical solutions are as follows:

[0006] A connecting device for a photovoltaic wall, which is used to fix two adjacent wall panels and a thin-film photovoltaic module, includes: two connecting components and a connecting rod. The two connecting components are respectively fixed on the two wall panels, and the two connecting components are fixedly connected through the connecting rod. The connecting component includes:

[0007] A connecting plate, the connecting plate is fixed on the wall panel, and the end of the connecting rod is detachably fixedly connected to the connecting plate;

[0008] A pressing plate, the pressing plate is detachably fixed on the top of the connecting plate, and is used to press and fix the edge of the thin-film photovoltaic module on the connecting plate.

[0009] As a further improvement and optimization of this solution, grooves are provided on both of the two wall panels, the two connecting components are respectively located in the two grooves, one end of the connecting rod is detachably fixed to one of the connecting plates, and the other end passes through the side walls of the two wall panels and is detachably fixed to the other connecting plate.

[0010] As a further improvement and optimization of this solution, the connecting plate includes:

[0011] A web, the web is arranged parallel to the bottom of the groove, and side plates are provided on both sides of the top of the web, and the side plates are perpendicular to the web;

[0012] A fixing plate, the fixing plate is arranged parallel to the web, and one end of the fixing plate is fixed on the top of one of the side plates, and the pressing plate is used to press and fix the edge of the thin-film photovoltaic module on the top end surface of the fixing plate.

[0013] As a further improvement and optimization of this solution, the pressing plate includes:

[0014] An installation part, the installation part is arranged parallel to the web and is detachably fixed on the web;

[0015] A limiting part, the limiting part is arranged parallel to the side plate, one end of the limiting part is fixed to the end of the installation part close to the fixing plate, and the limiting part is in transverse limiting cooperation with the thin-film photovoltaic module;

[0016] A pressing part, the pressing part is parallel to the fixing plate and is located directly above the fixing plate, and the pressing part is fixed to the other end of the fixing plate and is used to press the edge of the thin-film photovoltaic module on the fixing plate.

[0017] As a further improvement and optimization of this solution, a first rubber gasket is provided on the top of the fixing plate, a second rubber gasket is provided on the bottom end surface of the pressing part, and a third rubber gasket is adhesively bonded to the side surface of the first rubber gasket, and the third rubber gasket is arranged between the thin-film photovoltaic module and the pressing part.

[0018] As a further improvement and optimization of this solution, the end of the connecting rod passes through the other side plate and is fixed with a fixing nut by threading.

[0019] As a further improvement and optimization of this solution, the installation part and the web are fixed to the bottom of the groove by fixing bolts.

[0020] As a further improvement and optimization of this solution, a first support plate is fixed to the top of the side of the other side plate close to the web, a second support plate is provided on the side of the limiting part close to the installation part, the second support plate is at the same height as the first support plate, and a cover plate is fixed between the second support plate and the first support plate, and the cover plate is fixed to the first support plate and the second support plate by screws.

[0021] As a further improvement and optimization of this solution, an installation gasket is sleeved outside the connecting rod. The installation gasket is arranged between the fixing bolt and the side plate close to the connecting rod. A fixing gasket is sleeved outside the fixing bolt, and the fixing gasket is arranged on the top of the installation part.

[0022] An installation method of a connecting device, using the above-mentioned connecting device, the installation method includes:

[0023] Step S1: Place the two wall panels side by side. One end of the connecting rod passes through the side walls of the two wall panels in sequence from the groove on one of the wall panels and extends into the groove on the other wall panel. A connecting plate is sleeved at each end of the connecting rod. The two wall panels are fastened by tightening the two connecting plates respectively with the two fixing nuts, and the two wall panels are clamped by the two connecting plates.

[0024] Step S2: Place the edge of the thin-film photovoltaic module on the first rubber gasket, determine the installation position of the thin-film photovoltaic module, bond the third rubber gasket on the side of the first rubber gasket close to the connecting rod, and make the third rubber gasket located on the side of the edge of the thin-film photovoltaic module.

[0025] Step S3: The fixing bolt passes through the installation part of the pressing plate and the web in the connecting plate in sequence and is threadedly installed at the bottom of the groove, and the pressing plate and the connecting plate are fixed. At the same time, the pressing part presses down, and the thin-film photovoltaic module is pressed and tightened through the second rubber gasket. The limiting part laterally limits the thin-film photovoltaic module through the third rubber gasket.

[0026] Step S4: Fix the cover plate between the connecting plate and the pressing plate through the screws.

[0027] The positive effects of the above technical solution compared with the prior art are:

[0028] (1) In the present invention, through the connection and cooperation of the two connecting plates in the two connecting components and the connecting rod, the two adjacent wall panels are connected. At the same time, the edge of the thin-film photovoltaic module is pressed on the connecting plate by the pressing force of the pressing plate, so that the original connection structure of the wall panel and the fixture for fixing the thin-film photovoltaic module are designed as an integral component, eliminating the independent connecting metal component, effectively integrating the construction exterior wall and the installation of the thin-film module. It can not only improve the integration degree of the photovoltaic building integration, reduce the manufacturing cost of the connecting components required for connecting the wall panel and the thin-film photovoltaic module, but also avoid the damage to the waterproof and heat insulation performance of the original building caused by secondary construction, and has the advantages of convenient construction, simple installation and high installation stability.

[0029] (2) In this embodiment, the pressing portion of the pressing plate provides a pressing and fastening force for the thin-film photovoltaic module. When pressing and fixing the thin-film photovoltaic module, on the one hand, the limiting portion bears the connection load force between the pressing portion and the mounting portion, and on the other hand, it plays a role in laterally limiting the pressed thin-film photovoltaic module, making the thin-film photovoltaic module have higher installation stability.

[0030] (3) In this embodiment, by utilizing the deformable and buffer characteristics of the materials of the first rubber pad, the second rubber pad, and the third rubber pad, it can not only avoid the damage to the thin-film photovoltaic module caused by the lateral stress and longitudinal stress generated by the direct contact between the thin-film photovoltaic module and the fixing plate, the pressing portion, and the limiting portion, but also utilize the deformation characteristics of the first rubber pad and the second rubber pad to adapt to the installation of thin-film photovoltaic modules with different thicknesses and reduce the precise processing requirements for the thickness of the thin-film photovoltaic module. At the same time, by utilizing the deformation characteristics of the third rubber pad, it can meet the installation of thin-film modules with different lengths or widths and further reduce the processing requirements for the width or length accuracy of the thin-film photovoltaic module. Description of the Drawings

[0031] Figure 1 It is an assembly schematic diagram of the connecting rod and the connecting component of a connecting device for a photovoltaic wall of the present invention;

[0032] Figure 2 It is a structural schematic diagram of the connecting plate of a connecting device for a photovoltaic wall of the present invention;

[0033] Figure 3 It is a structural schematic diagram of the pressing plate of a connecting device for a photovoltaic wall of the present invention;

[0034] Figure 4 It is an assembly schematic diagram of the connecting rod and the fixing nut of a connecting device for a photovoltaic wall of the present invention;

[0035] Figure 5 It is an installation schematic diagram of a connecting device for a photovoltaic wall of the present invention;

[0036] Figure 6 It is a sectional view taken along line A-A of a connecting device for a photovoltaic wall of the present invention;

[0037] Figure 7 It is an enlarged schematic diagram at position B of a connecting device for a photovoltaic wall of the present invention;

[0038] In the drawings: 1, connecting plate; 2, pressing plate; 3, connecting rod; 4, cover plate; 5, thin-film photovoltaic module; 6, third rubber gasket; 7, fixing bolt; 8, fixing gasket; 9, wall panel; 11, web; 12, side plate; 13, fixing plate; 14, first rubber gasket; 15, first support plate; 21, installation part; 22, limiting part; 23, pressing part; 24, second rubber gasket; 25, second support plate; 31, fixing nut; 32, installation gasket; 41, screw; 91, groove. Detailed implementation manners

[0039] The present invention will be further described below in conjunction with the drawings and specific embodiments, but it is not intended to limit the present invention.

[0040] Figure 1 It is an assembly schematic diagram of the connecting rod and the connecting component of a connecting device for a photovoltaic wall of the present invention. Figure 2 It is a structural schematic diagram of the connecting plate of a connecting device for a photovoltaic wall of the present invention. Figure 3 It is a structural schematic diagram of the pressing plate of a connecting device for a photovoltaic wall of the present invention. Figure 4 It is an assembly schematic diagram of the connecting rod and the fixing nut of a connecting device for a photovoltaic wall of the present invention. Figure 5 It is an installation schematic diagram of a connecting device for a photovoltaic wall of the present invention. Figure 6 It is a sectional view taken along line A-A of a connecting device for a photovoltaic wall of the present invention. Figure 7 It is an enlarged schematic diagram at position B of a connecting device for a photovoltaic wall of the present invention. As Figures 1 to 7 shown, it shows a connecting device for a photovoltaic wall of a preferred embodiment, which is used to fix two adjacent wall panels 9 and the thin-film photovoltaic module 5, and includes: two connecting components and a connecting rod 3. The two connecting components are respectively fixed on the two wall panels 9, and the two connecting components are fixedly connected through the connecting rod 3. The connecting component includes a connecting plate 1 and a pressing plate 2. The connecting plate 1 is fixed on the wall panel 9, and the end of the connecting rod 3 is detachably fixedly connected to the connecting plate 1. The pressing plate 2 is detachably fixed on the top of the connecting plate 1 and is used to press and fix the edge of the thin-film photovoltaic module 5 on the connecting plate 1.

[0041] Further, as a preferred embodiment, grooves 91 are provided on both of the two wall panels 9, the two connecting components are respectively located in the two grooves 91, one end of the connecting rod 3 is detachably fixed to one of the connecting plates 1, and the other end passes through the side walls of the two wall panels 9 and is detachably fixed to the other connecting plate 1.

[0042] In this embodiment, through the connection and cooperation between the two connecting plates 1 and the connecting rod 3 in the two connecting components, two adjacent wall panels 9 are connected. At the same time, the edge of the thin-film photovoltaic module 5 is pressed on the connecting plate 1 by the pressing force of the pressing plate 2, so that the original connection structure of the wall panel 9 and the fixture for fixing the thin-film photovoltaic module 5 are designed as an integral component, eliminating the need for independent connecting metal components, enabling the effective integration of the building exterior wall and the installation of the thin-film module during construction. This not only improves the integration of the photovoltaic building integration, reduces the manufacturing cost of the connecting components required to connect the wall panel 9 and the thin-film photovoltaic module 5, but also avoids damaging the waterproof and heat insulation performance of the original building during secondary construction, and has the advantages of convenient construction, simple installation and high installation stability.

[0043] Preferably, both the connecting plate 1 and the pressing plate 2 are made of galvanized steel plates.

[0044] Further, as a preferred embodiment, the connecting plate 1 includes a web 11 and a fixing plate 13. The web 11 is arranged parallel to the bottom of the groove 91, and both sides of the top of the web 11 are provided with side plates 12. The side plates 12 are perpendicular to the web 11. The fixing plate 13 is arranged parallel to the web 11, and one end of the fixing plate 13 is fixed to the top of one of the side plates 12. The pressing plate 2 is used to press and fix the edge of the thin-film photovoltaic module 5 on the top end face of the fixing plate 13.

[0045] In this embodiment, the fixing plate 13 bears the gravity, wind load, earthquake and temperature effects of the thin-film photovoltaic module 5. At the same time, the side plates 12 provide the tensile force for the connection between adjacent wall panels 9. Through the connection components, the various loads are effectively transmitted to the wall panel 9, and the transmission path is clear and the stability is high.

[0046] In this embodiment, the thin-film photovoltaic module 5 is pressed and fixed on the top of the fixing plate 13, so that there is a certain ventilation gap between the thin-film photovoltaic module 5 and the groove 91, which does not affect the heat dissipation effect of the thin-film photovoltaic module 5 and the power generation efficiency of the thin-film photovoltaic module 5, and meets the requirements of heat insulation, fire prevention and heat preservation of the building exterior wall.

[0047] Further, as a preferred embodiment, the pressing plate 2 includes a mounting portion 21, a limiting portion 22 and a pressing portion 23. The mounting portion 21 is arranged parallel to the web 11 and is detachably fixed on the web 11. The limiting portion 22 is arranged parallel to the side plate 12. One end of the limiting portion 22 is fixed to the end of the mounting portion 21 close to the fixing plate 13, and the limiting portion 22 is in transverse limiting cooperation with the thin-film photovoltaic module 5. The pressing portion 23 is arranged parallel to the fixing plate 13 and is located directly above the fixing plate 13, and the pressing portion 23 is fixed to the other end of the fixing plate 13 for pressing the edge of the thin-film photovoltaic module 5 on the fixing plate 13.

[0048] In this embodiment, the pressing portion 23 of the pressing plate 2 provides a pressing and fastening force for the thin-film photovoltaic module 5. When pressing and fixing the thin-film photovoltaic module 5, the limiting portion 22, on the one hand, bears the connection load force between the pressing portion 23 and the mounting portion 21, and on the other hand, plays a lateral limiting role for the pressed thin-film photovoltaic module 5, making the thin-film photovoltaic module 5 have higher installation stability.

[0049] Furthermore, as a preferred embodiment, a first rubber gasket 14 is provided at the top of the fixing plate 13, a second rubber gasket 24 is provided at the bottom end face of the pressing portion 23, a third rubber gasket 6 is adhesively bonded to the side surface of the first rubber gasket 14, and the third rubber gasket 6 is disposed between the thin-film photovoltaic module 5 and the pressing portion 23.

[0050] In this embodiment, by utilizing the deformable and buffering characteristics of the materials of the first rubber gasket, the second rubber gasket and the third rubber gasket, it is possible to avoid the damage to the thin-film photovoltaic module 5 caused by the lateral stress and longitudinal stress generated by the direct contact between the thin-film photovoltaic module 5 and the fixing plate 13, the pressing portion 23 and the limiting portion 22. Moreover, the deformation characteristics of the first rubber gasket and the second rubber gasket can be used to adapt to the installation of thin-film photovoltaic modules 5 with different thicknesses and reduce the precise processing requirements for the thickness of the thin-film photovoltaic module 5. At the same time, the deformation characteristics of the third rubber gasket can meet the installation of thin-film modules with different lengths or widths and further reduce the processing requirements for the width or length accuracy of the thin-film photovoltaic module 5.

[0051] Furthermore, as a preferred embodiment, the end of the connecting rod 3 passes through the other side plate 12 and is fixedly threaded with a fixing nut 31. By tightening the fixing nut 31, the connecting plates 1 on both sides of the connecting rod 3 clamp and fasten the two wall plates 9.

[0052] Furthermore, as a preferred embodiment, the mounting portion 21 and the web 11 are fixed to the bottom of the groove 91 by fixing bolts 7.

[0053] Furthermore, as a preferred embodiment, a first support plate 15 is fixed to the top of the side of the other side plate 12 close to the web 11, a second support plate 25 is provided on the side of the limiting portion 22 close to the mounting portion 21, the second support plate 25 is equal in height to the first support plate 15, and a cover plate 4 is fixed between the second support plate 25 and the first support plate 15. The cover plate 4 is fixed to the first support plate 15 and the second support plate 25 by screws 41.

[0054] In this embodiment, the cover plate 4 provides a lateral support force for the connecting plate 1 and the pressing plate 2, improves the installation strength of the connecting plate 1 and the pressing plate 2, and makes the fixing efficiency of the thin-film photovoltaic module 5 more stable and reliable.

[0055] Further, as a preferred embodiment, an installation gasket 32 is sleeved outside the connecting rod 3. The installation gasket 32 is arranged between the fixing bolt 7 and the side plate 12 close to the connecting rod 3. A fixing gasket 8 is sleeved outside the fixing bolt 7, and the fixing gasket 8 is arranged on the top of the installation part 21.

[0056] An installation method of a connection device, using the above connection device, the installation method includes:

[0057] Step S1: Place the two wall panels 9 side by side. One end of the connecting rod 3 passes through the side walls of the two wall panels 9 from the groove 91 on one of the wall panels 9 in sequence and extends into the groove 91 on the other wall panel 9. A connecting plate 1 is sleeved on both ends of the connecting rod 3 respectively. The two connecting plates 1 are tightened by two fixing nuts 31 respectively, and the two wall panels 9 are fastened under the clamping of the two connecting plates 1.

[0058] Step S2: Place the edge of the thin-film photovoltaic module 5 on the first rubber gasket 14, and determine the installation position of the thin-film photovoltaic module 5. Bond the third rubber gasket 6 on the side of the first rubber gasket close to the connecting rod 3, and make the third rubber gasket 6 located on the side of the edge of the thin-film photovoltaic module 5.

[0059] Step S3: The fixing bolt 7 passes through the installation part 21 of the pressing plate 2 and the web 11 in the connecting plate 1 in sequence and is threadedly installed at the bottom of the groove 91, and the pressing plate 2 and the connecting plate 1 are fixed. At the same time, the pressing part 23 presses down, and the thin-film photovoltaic module 5 is pressed and tightened through the second rubber gasket. The limiting part 22 performs lateral limiting on the thin-film photovoltaic module 5 through the third rubber gasket.

[0060] Step S4: Fix the cover plate 4 between the connecting plate 1 and the pressing plate 2 through the screw 41.

[0061] The above are only the preferred embodiments of the present invention, and do not limit the implementation manners and protection scope of the present invention accordingly. For those skilled in the art, it should be able to realize that all the equivalent replacements and obvious changes made by using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A connecting device for a photovoltaic wall, which is used to fix two adjacent wall panels and a thin-film photovoltaic module, characterized in that, it includes: Two connecting components and a connecting rod. The two connecting components are respectively fixed on the two wall panels, and the two connecting components are fixedly connected through the connecting rod. The connecting component includes: A connecting plate, the connecting plate is fixed on the wall panel, and the end of the connecting rod is detachably and fixedly connected to the connecting plate; A pressing plate, the pressing plate is detachably fixed on the top of the connecting plate, and is used to press and fix the edge of the thin-film photovoltaic module on the connecting plate; Grooves are provided on both of the two wall panels, the two connecting components are respectively located in the two grooves, one end of the connecting rod is detachably fixed to one of the connecting plates, and the other end passes through the side walls of the two wall panels and is detachably fixed to the other connecting plate; The connecting plate includes: A web, the web is arranged parallel to the bottom of the groove, and side plates are provided on both sides of the top of the web, and the side plates are perpendicular to the web; A fixing plate, the fixing plate is arranged parallel to the web, and one end of the fixing plate is fixed on the top of one of the side plates, and the pressing plate is used to press and fix the edge of the thin-film photovoltaic module on the top end face of the fixing plate.

2. The connecting device for a photovoltaic wall according to claim 1, characterized in that, The pressing plate includes: An installation part, the installation part is arranged parallel to the web and is detachably fixed on the web; A limiting part, the limiting part is arranged parallel to the side plate, one end of the limiting part is fixed to the end of the installation part close to the fixing plate, and the limiting part is in transverse limiting cooperation with the thin-film photovoltaic module; A pressing part, the pressing part is arranged parallel to the fixing plate and is located directly above the fixing plate, and the pressing part is fixed to the other end of the fixing plate and is used to press the edge of the thin-film photovoltaic module on the fixing plate.

3. The connecting device for a photovoltaic wall according to claim 2, characterized in that, A first rubber gasket is provided on the top of the fixing plate, a second rubber gasket is provided on the bottom end face of the pressing part, and a third rubber gasket is adhesively bonded to the side of the first rubber gasket, and the third rubber gasket is arranged between the thin-film photovoltaic module and the pressing part.

4. The connecting device for a photovoltaic wall according to claim 3, characterized in that, The end of the connecting rod passes through the other side plate and is fixed with a fixing nut by threading.

5. The connecting device for a photovoltaic wall according to claim 4, characterized in that, The installation part and the web are fixed to the bottom of the groove through fixing bolts.

6. The connecting device for a photovoltaic wall according to claim 5, characterized in that, A first support plate is fixed to the top of the side of the other side plate close to the web, a second support plate is provided on the side of the limiting part close to the installation part, the second support plate is at the same height as the first support plate, and a cover plate is fixed between the second support plate and the first support plate, and the cover plate is fixed to the first support plate and the second support plate through screws.

7. The connecting device for a photovoltaic wall according to claim 6, It is characterized in that an installation gasket is sleeved outside the connecting rod, the installation gasket is arranged between the fixing bolt and the side plate close to the connecting rod, a fixing gasket is sleeved outside the fixing bolt, and the fixing gasket is arranged on the top of the installation part.

8. An installation method of a connecting device It is characterized in that using the connecting device according to any one of claims 6 to 7, the installation method includes: Step S1: Place the two wall panels side by side. One end of the connecting rod passes through the side walls of the two wall panels in sequence from the groove on one of the wall panels and extends into the groove on the other wall panel. A connecting plate is sleeved at each end of the connecting rod. The two wall panels are fastened by tightening the two connecting plates respectively with the two fixing nuts and clamping the two wall panels; Step S2: Place the edge of the thin-film photovoltaic module on the first rubber gasket, determine the installation position of the thin-film photovoltaic module, bond the third rubber gasket on the side of the first rubber gasket close to the connecting rod, and make the third rubber gasket located on the side of the edge of the thin-film photovoltaic module; Step S3: The fixing bolt passes through the installation part of the pressing plate and the web in the connecting plate and is threadedly installed at the bottom of the groove, and the pressing plate is fixed to the connecting plate. At the same time, the pressing part presses down, and the thin-film photovoltaic module is pressed and tightened through the second rubber gasket, and the limiting part performs lateral limiting on the thin-film photovoltaic module through the third rubber gasket; Step S4: Fix the cover plate between the connecting plate and the pressing plate through the screw.

Images