A photovoltaic building system

Abstract

The present invention discloses a photovoltaic building system, comprising: a corrugated steel plate for connecting to a factory building purlin; a connection assembly connected to the corrugated steel plate, the connection assembly comprising a first spring plate, the free end of the first spring plate facing the corrugated steel plate and having a preset distance between the first spring plate and the corrugated steel plate; a photovoltaic module laid on the corrugated steel plate, the photovoltaic module being provided with a connection portion, the connection portion extending between the free end of the first spring plate and the corrugated steel plate so that the first spring plate presses the connection portion. By adding a connection assembly with a first spring plate, the photovoltaic module is pressed against the corrugated steel plate by utilizing the elastic force of the first spring plate, thereby achieving fixation of the photovoltaic module. The problem of water leakage caused by corrosion of the nail holes at the connection parts of the self-tapping screws and the problem of high requirements on the construction environment when fixing the photovoltaic module by gluing are solved. The photovoltaic building system improves the reliability of the fixation of the photovoltaic module and makes the fixing method of the photovoltaic module simple, convenient and easy to operate.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic buildings, and more particularly to a photovoltaic building system. Background Art

[0002] In the prior art, photovoltaic modules are usually fixed by self-tapping screws or gluing.

[0003] However, when using self-tapping screws to fix photovoltaic modules, the nail holes at the connection parts of the self-tapping screws are easily corroded, which on the one hand causes water leakage, and on the other hand affects the connection strength of the photovoltaic modules.

[0004] When gluing photovoltaic modules, the construction environment is demanding and the construction period is long.

[0005] Therefore, how to provide a method for improving the reliability of photovoltaic module fixation is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0006] In view of this, an object of the present invention is to provide a photovoltaic building system that can improve the reliability of photovoltaic module fixation.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] A photovoltaic building system, comprising:

[0009] Corrugated steel plates used for connection with factory building purlins;

[0010] a connecting assembly connected to the corrugated steel plate, the connecting assembly comprising a first elastic piece, a free end of the first elastic piece facing the corrugated steel plate and having a preset distance therebetween;

[0011] The photovoltaic assembly laid on the corrugated steel plate is provided with a connecting portion, and the connecting portion extends between the free end of the first elastic sheet and the corrugated steel plate so that the first elastic sheet presses the connecting portion.

[0012] Optionally, the connection component includes:

[0013] A connector clamped to the corrugated steel plate;

[0014] A fixing member plugged into the connecting member, wherein the first elastic piece is provided on the fixing member.

[0015] Optionally, the connecting member includes a mounting plate, and the mounting plate is provided with a card interface;

[0016] The fixing member includes:

[0017] An inserting portion inserted into the card interface, a second elastic piece arranged obliquely on a side of the inserting portion, and a free end of the second elastic piece facing away from the insertion end of the inserting portion;

[0018] A positioning step is connected to an end of the plug-in portion away from the insertion end, and the positioning step and the free end of the second elastic piece are respectively in contact with two sides of the mounting plate.

[0019] Optionally, the plug-in portion is a U-shaped structure, and the second elastic piece is provided on two parallel side walls of the plug-in portion.

[0020] Optionally, the first elastic piece is connected to the positioning step.

[0021] Optionally, the corrugated steel plate includes a ridge portion, and two sides of the ridge portion are respectively provided with a clamping groove;

[0022] The connecting member includes two clamping parts respectively connected to the two ends of the mounting plate, the two clamping parts are respectively arranged on both sides of the convex ridge part, and the two clamping parts are respectively provided with a hook part for corresponding clamping with the card slot at one end away from the mounting plate.

[0023] Optionally, it further includes a windproof support for connecting to the purlins of the factory building, and the corrugated steel plate is connected to the windproof support through the inner side of the convex ridge portion.

[0024] Optionally, the length modulus of the photovoltaic module matches the width modulus of the corrugated steel sheet, so that the plurality of ridges support the photovoltaic module.

[0025] Optionally, the first end of the corrugated steel plate is provided with a first locking portion, and the second end of the corrugated steel plate is provided with a second locking portion, so that the first locking portion of one of the two adjacent corrugated steel plates is matched and locked with the second locking portion of the other.

[0026] Optionally, the connecting portion is pressed onto the ridge portion, and an anti-slip hook is provided at the end of the connecting portion, and the anti-slip hook is located between the first elastic piece and the connecting piece.

[0027] The photovoltaic building system provided by the present invention is installed by connecting the corrugated steel sheet to the purlin of the factory building, and then connecting the connecting assembly to the corrugated steel sheet. Then, the photovoltaic module is laid on the corrugated steel sheet, and the connecting portion of the photovoltaic module is extended between the free end of the first spring sheet and the corrugated steel sheet. It can be understood that since the first spring sheet is elastic, when installing the photovoltaic module, the connecting portion can be extended between the free end of the first spring sheet and the corrugated steel sheet by applying an extrusion force to the first spring sheet, and then the elastic force of the first spring sheet is used to tighten the connecting portion to achieve fixation of the photovoltaic module.

[0028] As can be seen from this, the embodiment of the present invention achieves the fixation of the photovoltaic module by adding a connection component with a first spring plate and utilizing the elastic force of the first spring plate to press the photovoltaic module against the corrugated steel plate. Compared with the prior art, the use of self-tapping screws or glue to fix the photovoltaic module is avoided. Therefore, the problem of water leakage caused by corrosion of the nail holes at the connection part of the self-tapping screws and the impact on the connection strength of the photovoltaic module, as well as the high requirements for the construction environment and the long construction period brought about by the use of glue to fix the photovoltaic module can be avoided. In other words, the photovoltaic building system provided by the embodiment of the present invention improves the reliability of the fixation of the photovoltaic module and makes the fixing method of the photovoltaic module simple, convenient, and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0030] Figure 1 A schematic structural diagram of a photovoltaic building system provided by a specific embodiment of the present invention;

[0031] Figure 2 for Figure 1 The main view;

[0032] Figure 3 for Figure 1 Left view of;

[0033] Figure 4 for Figure 3 A partial enlarged view of middle A;

[0034] Figure 5 This is a schematic structural diagram of a connecting member in an embodiment of the present invention;

[0035] Figure 6 A schematic structural diagram of a fixing member in an embodiment of the present invention;

[0036] Figure 7 This is a structural schematic diagram of a connection assembly in an embodiment of the present invention fixed behind a corrugated steel plate;

[0037] Figure 8 for Figure 7 Side view of;

[0038] Figure 9 for Figure 8 Partial cross-sectional view along the BB axis;

[0039] Figure 10Schematic diagram of the installation of the ridge portion and the windproof support in an embodiment of the present invention.

[0040] Figures 1 to 10 The reference numerals in the figures are as follows:

[0041] 1 is a corrugated steel plate, 11 is a ridge, 12 is a card slot, 13 is a first locking edge portion, 14 is a second locking edge portion, 15 is a step portion, 2 is a fixing part, 21 is a first spring piece, 22 is a plug-in part, 23 is a second spring piece, 24 is a positioning step, 3 is a connecting part, 31 is a mounting plate, 32 is a card interface, 33 is a card connection portion, 34 is a hook edge portion, 4 is a photovoltaic module, 41 is a connecting part, 42 is an anti-slip hook, 43 is a vertical edge, 5 is a windproof support, 51 is a pillar, 52 is an installation platform, 53 is a fixed edge, 6 is a factory purlin, and 7 is a locking edge support. DETAILED DESCRIPTION

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0043] The core of the present invention is to provide a photovoltaic building system that can improve the reliability of photovoltaic component fixation.

[0044] Please refer to Figures 1-10 , Figure 1 A schematic structural diagram of a photovoltaic building system provided by a specific embodiment of the present invention; Figure 2 for Figure 1 The main view; Figure 3 for Figure 1 Left view of; Figure 4 for Figure 3 A partial enlarged view of middle A; Figure 5 is a structural diagram of the connecting piece; Figure 6 is a structural diagram of a fixing part; Figure 7 This is a structural diagram showing the connection assembly being fixed behind the corrugated steel plate; Figure 8 for Figure 7 Side view of Figure 9 for Figure 8 Partial cross-sectional view along the BB axis; Figure 10 This is a schematic diagram of the installation of the ridge and windproof support.

[0045] The present invention provides a photovoltaic building system, including a corrugated steel plate 1, a connecting assembly and a photovoltaic assembly 4, wherein the corrugated steel plate 1 is used to be connected to the purlin 6 of the factory building; the connecting assembly is connected to the corrugated steel plate 1, and the connecting assembly includes a first spring piece 21, the free end of the first spring piece 21 faces the corrugated steel plate 1, and there is a preset distance between the first spring piece 21 and the corrugated steel plate 1; the photovoltaic assembly 4 is laid on the corrugated steel plate 1, and the photovoltaic assembly 4 is provided with a connecting portion 41, which extends between the free end of the first spring piece 21 and the corrugated steel plate 1 so that the first spring piece 21 presses the connecting portion 41.

[0046] During installation, the corrugated steel sheet 1 is connected to the factory purlin 6, and then the connecting assembly is connected to the corrugated steel sheet 1, and then the photovoltaic module 4 is laid on the corrugated steel sheet 1, and the connecting portion 41 of the photovoltaic module 4 is extended between the free end of the first spring piece 21 and the corrugated steel sheet 1. It can be understood that since the first spring piece 21 is elastic, when installing the photovoltaic module 4, the connecting portion 41 can be extended between the free end of the first spring piece 21 and the corrugated steel sheet 1 by applying an extrusion force to the first spring piece 21, and then the elastic force of the first spring piece 21 is used to press the connecting portion 41 to achieve the fixation of the photovoltaic module 4.

[0047] It can be seen from this that the embodiment of the present invention, by adding a connection assembly with a first spring piece 21, uses the elastic force of the first spring piece 21 to press the photovoltaic assembly 4 against the corrugated steel sheet 1, thereby achieving the fixation of the photovoltaic assembly 4. Compared with the prior art, the use of self-tapping screws or glue to fix the photovoltaic assembly 4 is avoided. Therefore, the problem of water leakage caused by corrosion of the nail holes at the connection part of the self-tapping screws and affecting the connection strength of the photovoltaic assembly 4, as well as the problem of high requirements for the construction environment and long construction period when fixing the photovoltaic assembly 4 by glue can be avoided. That is, the photovoltaic building system provided by the embodiment of the present invention improves the reliability of the fixation of the photovoltaic assembly 4, making the fixation method of the photovoltaic assembly 4 simple, convenient and easy to operate.

[0048] In addition, the electrical components of the photovoltaic module 4 are isolated from the indoor space of the factory by using the corrugated steel plate 1 made of non-combustible material, avoiding direct contact between the electrical components of the photovoltaic module 4 and the indoor space of the factory, thereby preventing arcing or fire of electrical components, which may cause dripping fireballs to cause fires in the indoor materials of the factory, thereby eliminating the fire hazard and reducing economic losses.

[0049] Considering the convenience and reliability of the connection, in one embodiment, the connection assembly includes a connector 3 and a fixing member 2, wherein the connector 3 is clamped to the corrugated steel sheet 1, the fixing member 2 is plugged into the connector 3, and the first elastic piece 21 is provided on the fixing member 2. In other words, this embodiment achieves the connection between the connection assembly and the corrugated steel sheet 1 by clamping the connector 3 to the corrugated steel sheet 1, and secures the first elastic piece 21 to the connector 3 by plugging the fixing member 2 into the connector 3. This also avoids the use of bolts and glue to secure the connection assembly to the corrugated steel sheet 1, thereby ensuring a reliable connection between the connection assembly and the corrugated steel sheet 1.

[0050] It should be noted that this embodiment does not limit the specific plug-in structure between the fixing member 2 and the connecting member 3, as long as the plug-in fixation of the two can be achieved.

[0051] In one embodiment, the connector 3 includes a mounting plate 31, which is provided with a card interface 32; the fixing member 2 includes a plug-in portion 22 and a positioning step 24, the plug-in portion 22 is inserted into the card interface 32, and the side of the plug-in portion 22 is provided with a second elastic piece 23 that is inclined, and the free end of the second elastic piece 23 is away from the insertion end of the plug-in portion 22; the positioning step 24 is connected to the end of the plug-in portion 22 away from its insertion end, and the free ends of the positioning step 24 and the second elastic piece 23 are respectively in contact with both sides of the mounting plate 31.

[0052] It can be understood that when the plug-in portion 22 is inserted into the card interface 32, the second elastic piece 23 is elastic, so the card interface 32 squeezes the second elastic piece 23, causing it to contract, thereby allowing the plug-in portion 22 to be smoothly inserted into the card interface 32. When the second elastic piece 23 has fully entered the card interface 32, it springs outward, causing the free end of the second elastic piece 23 to press against the side of the mounting plate 31. At this time, the positioning step 24 abuts against the portion of the other side of the mounting plate 31 located at the edge of the card interface 32, thereby limiting the insertion position of the plug-in portion 22, preventing the plug-in portion 22 from being further inserted along the card interface 32. Therefore, under the limiting action of the positioning step 24 and the second elastic piece 23, the fixing member 2 and the connecting member 3 are fixed together. It can be seen that this plug-in structure of the connecting member 3 and the fixing member 2 is easy to install and the connection is reliable.

[0053] In one embodiment, the plug-in portion 22 is a U-shaped structure, that is, the plug-in portion 22 is a U-shaped plug-in portion 22 , and the second elastic piece 23 is disposed on two opposite side walls of the U-shaped plug-in portion 22 .

[0054] In one embodiment, the positioning step 24 is disposed at the opening of the U-shaped inserting portion 22 and extends away from the opening.

[0055] Considering the convenience of disposing the first elastic piece 21 , in one embodiment, the first elastic piece 21 is connected to the positioning step 24 .

[0056] In addition, the above embodiment does not limit the specific clamping structure between the connecting member 3 and the corrugated steel plate 1, as long as the clamping connection between the connecting member 3 and the corrugated steel plate 1 can be achieved.

[0057] In one embodiment, the corrugated steel plate 1 includes a ridge portion 11, and a card slot 12 is provided on both sides of the ridge portion 11; the connecting member 3 includes two clamping portions 33 respectively connected to the two ends of the mounting plate 31, and the two clamping portions 33 are respectively provided on both sides of the ridge portion 11, and the two clamping portions 33 are each provided with a hook portion 34 for correspondingly clamping with the card slot 12 at one end away from the mounting plate 31.

[0058] During installation, the two engaging portions 33 are positioned across the sides of the ridge portion 11, and pressure is applied to the connector 3, causing the two hook portions 34 to slide along the sides of the ridge portion 11. It is understood that, under the mechanical limiting action of the two sides of the ridge portion 11, the two hook portions 34 are slightly opened outward. When the hook portions 34 are aligned with the slots 12, the hook portions 34 snap into the slots 12, thereby achieving the connection between the connector 3 and the ridge portion 11. It is understood that, because the second elastic piece 23 exerts a pressing force on the mounting plate 31, the two hook portions 34 have a tendency to retract inward, thereby making the hook portions 34 fit more firmly and reliably with the slots 12.

[0059] In one embodiment, after the fixing member 2 and the connecting member 3 are assembled, the bottom surface of the plug-in portion 22 of the fixing member 2 is in contact with the top surface of the ridge portion 11, so that the fixing member 2, the connecting member 3 and the corrugated steel plate 1 are more firmly connected.

[0060] In one embodiment, the side surface of the ridge portion 11 is an inclined surface.

[0061] In addition, to facilitate the connection between the corrugated steel sheet 1 and the factory purlin 6, in one embodiment, the photovoltaic building system further includes a windbreak support 5 for connection to the factory purlin 6, and the corrugated steel sheet 1 is connected to the windbreak support 5 via the inner side of the ridge portion 11. That is, in this embodiment, the windbreak support 5 is connected to the factory purlin 6, the corrugated steel sheet 1 is connected to the windbreak support 5, and the corrugated steel sheet 1 is fixed to the factory purlin 6 via the windbreak support 5. Furthermore, the inner side of the ridge portion 11 of the corrugated steel sheet 1 is connected to the windbreak support 5. It is understandable that the outer side of the ridge portion 11 is used to connect to the connector 3, that is, the ridge portion 11 serves to connect both to the connector 3 and to the windbreak support 5.

[0062] In one embodiment, the windproof support 5 is fixed to the factory building purlin 6 by self-tapping screws, and the connection method is simple and reliable.

[0063] In one embodiment, the card grooves 12 on both sides of the ridge portion 11 are formed by the concave side wall of the ridge portion 11. After the side wall of the ridge portion 11 is concave, an inwardly convex step portion 15 is formed on the inner side of the ridge portion 11. The step portion 15 is used to overlap and fix with the fixed edge 53 of the windproof support 5.

[0064] In one embodiment, the windproof support 5 includes a support column 51 for connecting to the factory building purlin 6, a mounting platform 52 provided at one end of the support column 51, and a fixing edge 53 connected to the mounting platform 52. During installation, the inner side of the ridge portion 11 is aligned with the mounting platform 52 of the windproof support 5, and then the corrugated steel sheet 1 is pressed down so that the top inner side of the ridge portion 11 is aligned with the mounting platform 52. At this time, the fixing edge 53 is aligned with the end face of the step portion 15 on the inner side of the ridge portion 11, thereby achieving a clamping fixation between the ridge portion 11 and the windproof support 5, and preventing the corrugated steel sheet 1 from detaching from the windproof support 5.

[0065] It is understood that the windproof support 5 provides support for the corrugated steel sheet 1 and the photovoltaic module 4. In order to improve the rigidity of the photovoltaic module 4 after it is fixed, in one embodiment, the length modulus of the photovoltaic module 4 matches the width modulus of the corrugated steel sheet 1, so that the multiple ridges 11 support the photovoltaic module 4. It is understood that the ridges 11 are provided on the corrugated steel sheet 1. Therefore, once the structure of the corrugated steel sheet 1 is determined, the position of the ridges 11 is also determined, and the distance between two adjacent ridges 11 can be determined according to the width modulus of the corrugated steel sheet 1. In this embodiment, by matching the length modulus of the photovoltaic module 4 with the width modulus of the corrugated steel sheet 1, the photovoltaic module 4 is supported by the multiple ridges 11, and the rigidity of the photovoltaic module 4 is strengthened through multi-point support. In addition, the photovoltaic module 4 can be directly used as an operation and maintenance channel, so that operation and maintenance personnel can walk along the photovoltaic module 4, improving the convenience of operation and maintenance.

[0066] In addition, it is understandable that due to the relatively large area of ​​the factory building, the number of corrugated steel sheets 1 is usually multiple, and the multiple corrugated steel sheets 1 are sequentially connected to form a corrugated steel sheet 1 surface for laying photovoltaic modules 4. Considering the reliability of the connection between two adjacent corrugated steel sheets 1, in one embodiment, the first end of the corrugated steel sheet 1 is provided with a first locking portion 13, and the second end of the corrugated steel sheet 1 is provided with a second locking portion 14, so that the first locking portion 13 of one of the two adjacent corrugated steel sheets 1 is matched and locked with the second locking portion 14 of the other.

[0067] In one embodiment, the height of the first locking portion 13 and the second locking portion 14 after being locked together is equal to the height of the ridge portion 11 .

[0068] In addition, in order to improve the reliability of the fixation of the first locking edge portion 13 and the second locking edge portion 14, in one embodiment, the photovoltaic building system also includes a locking edge support 7, the number of the locking edge support 7 is the same as the number of matching pairs formed by the first locking edge portion 13 and the second locking edge portion 14, and the locking edge support 7 is arranged in a one-to-one correspondence with the matching parts of the first locking edge portion 13 and the second locking edge portion 14, so that the locking edge support 7 plays a supporting role for the matched first locking edge portion 13 and the second locking edge portion 14, so as to improve the firmness of the first locking edge portion 13 and the second locking edge portion 14 after being matched and locked, and keep the height of the first locking edge portion 13 and the second locking edge portion 14 after being matched and locked equal to the height of the ridge portion 11.

[0069] In one embodiment, the locking support 7 is fixed to the factory building purlin 6 by self-tapping screws.

[0070] This embodiment does not limit the specific structure of the first locking portion 13 and the second locking portion 14, as long as the two can cooperate and lock. In one embodiment, the connecting portion 41 is pressed above the ridge portion 11, and the end of the connecting portion 41 is provided with an anti-slip hook 42, and the anti-slip hook 42 is located between the first spring piece 21 and the connecting member 3. It can be understood that the anti-slip hook 42 has a limiting function. Since the anti-slip hook 42 is located between the first spring piece 21 and the connecting member 3, when the connecting portion 41 has a tendency to detach from between the first spring piece 21 and the ridge portion 11, the anti-slip hook 42 can abut against one side of the free end of the first spring piece 21 to prevent the connecting portion 41 from detaching from between the free end of the first spring piece 21 and the corrugated steel plate 1.

[0071] In one embodiment, vertical edges 43 perpendicular to the photovoltaic component 4 are respectively provided on both sides of the bottom of the photovoltaic component 4, the connecting portion 41 is a connecting edge perpendicularly connected to the vertical edge 43, and the anti-slip hook 42 is provided at one end of the connecting edge away from the vertical edge 43.

[0072] It should also be noted that, in this specification, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0073] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0074] The above describes in detail the photovoltaic building system provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The above examples are intended only to facilitate understanding of the method and core concepts of the present invention. It should be noted that those skilled in the art will be able to make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications fall within the scope of protection of the claims.

Claims

1. A photovoltaic building system, characterized in that: include: A corrugated steel plate (1) for connection with a factory building purlin (6); A connecting assembly connected to the corrugated steel plate (1), the connecting assembly comprising a first elastic piece (21), the free end of the first elastic piece (21) facing the corrugated steel plate (1) and having a preset distance between the first elastic piece (21) and the corrugated steel plate (1); A photovoltaic module (4) laid on the corrugated steel plate (1), the photovoltaic module (4) being provided with a connecting portion (41), the connecting portion (41) extending between the free end of the first elastic piece (21) and the corrugated steel plate (1), so that the first elastic piece (21) presses the connecting portion (41); The connection component includes: A connecting piece (3) clamped to the corrugated steel plate (1); A fixing member (2) plugged into the connecting member (3), wherein the first elastic piece (21) is provided on the fixing member (2); The connecting member (3) comprises a mounting plate (31), and the mounting plate (31) is provided with a card interface (32); The fixing member (2) comprises: A plug-in portion (22) inserted into the card interface (32), a second elastic piece (23) arranged obliquely on a side of the plug-in portion (22), and a free end of the second elastic piece (23) facing away from the insertion end of the plug-in portion (22); a positioning step (24) connected to an end of the plug-in portion (22) away from the insertion end, wherein the positioning step (24) and the free end of the second elastic piece (23) are respectively in contact with two sides of the mounting plate (31); The plug-in portion (22) is a U-shaped structure, and the second elastic piece (23) is provided on two parallel side walls of the plug-in portion (22); The first elastic piece (21) is connected to the positioning step (24).

2. The photovoltaic building system according to claim 1, characterized in that: The corrugated steel plate (1) comprises a ridge portion (11), and two sides of the ridge portion (11) are respectively provided with a clamping groove (12); The connecting member (3) comprises two clamping portions (33) respectively connected to the two ends of the mounting plate (31), the two clamping portions (33) being respectively arranged on both sides of the convex ridge portion (11), and the two clamping portions (33) are respectively provided with a hook portion (34) for correspondingly clamping with the clamping slot (12) at one end away from the mounting plate (31).

3. The photovoltaic building system according to claim 2, characterized in that: It also includes a windproof support (5) for connecting to the factory building purlin (6), and the corrugated steel plate (1) is connected to the windproof support (5) through the inner side of the convex ridge portion (11).

4. The photovoltaic building system according to claim 3, characterized in that: The length modulus of the photovoltaic assembly (4) matches the width modulus of the corrugated steel sheet (1), so that the plurality of ridges (11) support the photovoltaic assembly (4).

5. The photovoltaic building system according to any one of claims 1 to 4, characterized in that: The first end of the corrugated steel plate (1) is provided with a first locking portion (13), and the second end of the corrugated steel plate (1) is provided with a second locking portion (14), so that the first locking portion (13) of one of the two adjacent corrugated steel plates (1) is matched and locked with the second locking portion (14) of the other.

6. The photovoltaic building system according to claim 2, characterized in that: The connecting portion (41) is pressed above the ridge portion (11), and an anti-slip hook (42) is provided at the end of the connecting portion (41), and the anti-slip hook (42) is located between the first elastic piece (21) and the connecting member (3).

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