Longitudinal beam and photovoltaic roof provided with same

Abstract

The utility model provides a kind of longitudinal beam and photovoltaic roof with it.The longitudinal beam of the utility model is arranged on purlin in photovoltaic roof, including lower section bar and cover plate;Lower section bar includes installation part on purlin, and support part on the top of installation part.Cover plate is detachably arranged on support part, and installation groove is formed between installation part, support part and cover plate, both sides of support part along the width direction of longitudinal beam are provided with installation groove, and each installation groove is used to install photovoltaic module.The longitudinal beam of the utility model can facilitate the convenient disassembly of cover plate, to facilitate the disassembly convenience of photovoltaic module, so that it can facilitate the daily use and maintenance of photovoltaic tile.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic technology, and in particular to a longitudinal beam and a photovoltaic roof equipped with it. Background Technology

[0002] Solar photovoltaic (PV) roofing tiles are a type of building material that combines solar photovoltaic technology with roofing tiles. Compared to traditional tiles, PV roofing tiles prioritize harmony with the building's appearance and offer a variety of color and size options to meet the needs of different architectural styles. When applied to buildings, PV roofing tiles not only retain the basic functions of traditional tiles, such as rain protection, wind resistance, and insulation, but also offer additional attributes such as clean energy, easy installation, lightweight, safety, durability, heat insulation, and aesthetics. However, current installation methods for PV roofing tiles often suffer from cumbersome installation processes requiring numerous tightening screws, which not only makes disassembly and assembly inconvenient but also affects the strength of the tiles, hindering their daily use and maintenance. Utility Model Content

[0003] In view of this, the present invention aims to propose a longitudinal beam that facilitates the installation and removal of photovoltaic modules.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] A longitudinal beam, mounted on a purlin in a photovoltaic roof, includes a lower profile and a cover plate;

[0006] The lower profile includes a mounting portion disposed on the purlin and a support portion disposed on the top of the mounting portion;

[0007] The cover plate is detachably mounted on the support portion and forms an installation groove between the mounting portion, the support portion and the cover plate. The support portion has installation grooves on both sides along the width direction of the longitudinal beam, and each installation groove is used to install photovoltaic modules.

[0008] Furthermore, the support portion includes two opposing second side plates disposed on the top of the mounting portion, and a connecting plate disposed between the two second side plates, and the cover plate abuts against the top of each second side plate and is detachably connected to the connecting plate.

[0009] Furthermore, along the width direction of the longitudinal beam, the top of each second side plate has a first limiting protrusion extending toward one side of the connecting plate, and the connecting plate, the two second side plates and the two first limiting protrusions together form a first limiting groove; the cover plate is connected to the connecting plate by a first fastening component, and the first fastening component is installed corresponding to the first limiting groove.

[0010] Furthermore, the cover plate is provided with a second limiting protrusion corresponding to each of the second side plates. The two second side plates are located between the two second limiting protrusions, and each second side plate abuts against its corresponding second limiting protrusion.

[0011] Furthermore, the mounting portion includes a mounting portion body and a support protrusion disposed on the mounting portion body. The support protrusion is spaced apart from the support portion and protrudes into the mounting groove. The support protrusion is used to support the photovoltaic module. The support protrusion and the mounting portion body form a drainage channel.

[0012] Furthermore, the mounting body includes a base plate, two first side plates arranged opposite each other on the base plate along the width direction of the longitudinal beam, and a top plate disposed between the two first side plates, with the support portion disposed on the top plate; a cavity is formed between the base plate, the top plate, and the two first side plates, and / or, along the height direction of the longitudinal beam, the top of the first side plate extends upward into the mounting groove to form the support protrusion.

[0013] Compared with the prior art, this utility model has the following advantages:

[0014] (1) The longitudinal beam described in this utility model can facilitate the installation of photovoltaic modules by forming an installation groove between the installation part, the support part and the cover plate. At the same time, the cover plate is detachably set on the support part, which can facilitate the convenient disassembly and assembly of the cover plate, thereby improving the ease of disassembly and assembly of photovoltaic modules, and thus facilitating the daily use and maintenance of photovoltaic tiles.

[0015] (2) By setting a second side plate, it is possible to form an installation groove between the mounting part, the support part and the cover plate. At the same time, the cover plate abuts against the top of each second side plate, and by setting a connecting plate, it is possible to facilitate the easy assembly and disassembly of the cover plate.

[0016] (3) The cover plate and the connecting plate are connected by the first fastening component, which facilitates the detachable connection between them, and the first limiting groove is provided to facilitate the limiting installation of the first fastening component.

[0017] (4) A second limiting protrusion is provided to abut against each of the second side plates, so that the cover plate can be positioned and installed on the support to improve the ease of installation of the cover plate.

[0018] (5) A support protrusion is set to support the photovoltaic module, and a drainage channel is formed between the support protrusion and the mounting body. This not only realizes the drainage function and reduces the risk of rainwater backflow, thus solving the problem of poor rain and backflow prevention function of existing photovoltaic tiles and easy leakage, but also provides compensation space for the deformation of photovoltaic modules.

[0019] (6) A cavity is formed between the bottom plate, the top plate and the two first side plates, which can help reduce the weight of the longitudinal beam. At the same time, a supporting protrusion is formed by extending upward from the top of the first side plate. The structure is simple and can help reduce the difficulty of longitudinal beam preparation.

[0020] This utility model also proposes a photovoltaic roof, including an installation structure for installing photovoltaic modules;

[0021] The mounting structure includes purlins and longitudinal beams as described above, disposed on the purlins.

[0022] Furthermore, there are multiple longitudinal beams arranged in sequence; the photovoltaic modules are inserted between the mounting slots of two adjacent longitudinal beams, and there are multiple photovoltaic modules that overlap each other in sequence along the length of the longitudinal beams.

[0023] Furthermore, the photovoltaic module includes photovoltaic tiles and side frames disposed on both sides of the photovoltaic tiles along the width direction of the longitudinal beam. Each side frame is provided with a slot for engaging the photovoltaic tile. Based on the stacking direction of the photovoltaic modules from top to bottom, the slots are inclined from low to high in the height direction so that in two adjacent photovoltaic modules, the bottom of the upper photovoltaic module overlaps the top of the lower photovoltaic module.

[0024] Furthermore, the mounting structure includes a stop member disposed at the bottom of the longitudinal beam, the stop member being used to prevent the photovoltaic module from slipping out of the mounting groove; the stop member is connected to the support part through a second fastening component; and / or, a drainage gap corresponding to each of the mounting grooves is formed between the bottom of the stop member and the mounting part, and each of the drainage gaps is connected to the corresponding drainage channel.

[0025] (7) The photovoltaic roof described in this utility model, by setting the above-mentioned longitudinal beams, can facilitate the installation and disassembly of photovoltaic modules, solve the problems of complicated installation and disassembly of existing photovoltaic modules, inconvenience of later maintenance and replacement, and has a better performance.

[0026] (8) Inserting photovoltaic modules between two adjacent mounting slots, and having multiple photovoltaic modules that are sequentially overlapped along the length of the longitudinal beam, can make the layout reasonable and facilitate the construction of photovoltaic roofs.

[0027] (9) Setting the slots in the side frame at an angle can facilitate the bottom of the upper photovoltaic module to be attached to the top of the lower photovoltaic module, thereby improving the convenience of photovoltaic roof construction.

[0028] (10) Setting a retaining part can prevent the photovoltaic module from slipping off and improve the installation reliability of the photovoltaic module. The retaining part is connected to the support part through the second fastener assembly, which can facilitate the convenient disassembly and assembly between the retaining part and the support part. At the same time, a drainage gap is formed between the bottom of the retaining part and the installation part. The drainage gap and the corresponding drainage channel are connected to avoid water accumulation at the retaining part, so as to ensure the overall drainage performance of the longitudinal beam. Attached Figure Description

[0029] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0030] Figure 1 This is a schematic diagram of the structure of the longitudinal beam and photovoltaic module assembled on the photovoltaic roof according to an embodiment of the present invention;

[0031] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0032] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0033] Figure 4 for Figure 1 Enlarged view of point C in the middle;

[0034] Figure 5 This is a schematic diagram of the structure of the longitudinal beam and photovoltaic module during assembly according to an embodiment of the present invention;

[0035] Figure 6 This is a schematic diagram of the lower profile structure according to an embodiment of the present utility model;

[0036] Figure 7 This is a schematic diagram of the structure of the cover plate described in an embodiment of the present utility model;

[0037] Figure 8 This is a schematic diagram of the structure of the photovoltaic module described in an embodiment of the present invention;

[0038] Figure 9 This is a schematic diagram of the structure when two adjacent photovoltaic modules are overlapped according to an embodiment of the present invention;

[0039] Figure 10 for Figure 9 Enlarged view at point D;

[0040] Figure 11 This is a schematic diagram of the structure of the left side frame as described in an embodiment of the present utility model;

[0041] Figure 12This is a schematic diagram of the structure of the right-side frame as described in an embodiment of the present utility model;

[0042] Figures 13 to 15 These are schematic diagrams of the blocking member described in the embodiments of this utility model from different perspectives;

[0043] Explanation of reference numerals in the attached figures:

[0044] 200. Longitudinal beam;

[0045] 201. Lower profile; 2011. Mounting body; 20111. Base plate; 20112. First side plate; 20113. Top plate; 2012. Support; 20121. Second side plate; 20122. Connecting plate; 20123. First limiting protrusion; 20124. First limiting groove; 2013. Drainage channel; 202. Cover plate; 2021. Second limiting protrusion; 203. Mounting groove; 204. Stop; 2041. Groove; 20411. Drainage gap; 2042. Adaptor groove; 2043. Through hole; 205. First fastening assembly; 2051. First bolt; 2052. First nut; 206. Second fastening assembly; 2061. Second bolt; 2062. Second nut;

[0046] 300. Photovoltaic modules;

[0047] 301, photovoltaic tile; 302, side frame; 3020, card slot; 3021, second slot; 303, first sealing strip. Detailed Implementation

[0048] To make the technical solution and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0049] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0050] Furthermore, in the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" appear, indicating orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, if terms such as "first" or "second" appear, they are also used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0051] Furthermore, in the description of this utility model, unless otherwise explicitly defined, the terms "installation," "connection," "joining," and "connector" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model in light of the specific circumstances.

[0052] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0053] The present invention will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0054] An embodiment of the first aspect of this utility model provides a longitudinal beam 200, which facilitates the convenient assembly and disassembly of the photovoltaic module 300.

[0055] In the existing technology, the installation method of photovoltaic tile 301 is usually complicated and requires a lot of fastening screws. Not only is it difficult to disassemble and assemble, but it also affects the strength of photovoltaic tile 301, which is not conducive to the daily use and maintenance of photovoltaic tile 301.

[0056] In view of this, in order to overcome the shortcomings of the prior art, the longitudinal beam 200 in this embodiment combines... Figures 1 to 7 As shown, in the overall design, it is located on the purlins in the photovoltaic roof and includes a lower profile 201 and a cover plate 202.

[0057] The lower profile 201 includes a mounting portion on the purlin and a support portion 2012 on top of the mounting portion. A cover plate 202 is detachably mounted on the support portion 2012 and forms a mounting groove 203 between the mounting portion, the support portion 2012 and the cover plate 202. The support portion 2012 has mounting grooves 203 on both sides along the width direction of the longitudinal beam 200, and each mounting groove 203 is used to mount the photovoltaic module 300.

[0058] Therefore, by forming an installation groove 203 between the mounting part, the support part 2012 and the cover plate 202, it is convenient to install the photovoltaic module 300. At the same time, by detachably setting the cover plate 202 on the support part 2012, it is convenient to disassemble and install the cover plate 202, thereby improving the ease of disassembly and assembly of the photovoltaic module 300, which is beneficial to the daily use and maintenance of the photovoltaic tile 301.

[0059] Based on the above overview, specifically, as an exemplary structural form, the photovoltaic module 300 of this embodiment includes photovoltaic tiles 301 and a frame at least on one opposite side of the photovoltaic tiles 301. Corresponding to the mounting groove 203, the mounting portion has a receiving side. Therefore, in this embodiment, when using the longitudinal beam 200, the lower profile 201 can be first fastened to the purlin with automatic screws, then the photovoltaic module 300 can be laid on the receiving side of two adjacent longitudinal beams 200, and then the cover plate 202 can be installed on the lower profile 201, thereby installing the photovoltaic tile 301 module in two adjacent mounting grooves 203. Furthermore, when it is necessary to repair or replace the photovoltaic module 300, only the cover plate 202 needs to be removed to allow the photovoltaic module 300 to be placed or removed.

[0060] It should be noted that the direction-related descriptions in this embodiment are merely illustrative examples. In actual implementation, the direction descriptions in this embodiment will vary depending on the orientation of the longitudinal beam 200; that is, each direction in this embodiment refers to a relative coordinate system based on the longitudinal beam 200.

[0061] In some of the exemplary embodiments, such as in this embodiment, Figure 6 As shown, the support portion 2012 includes two opposing second side plates 20121 disposed on the top of the mounting portion, and a connecting plate 20122 disposed between the two second side plates 20121. The cover plate 202 abuts against the top of each second side plate 20121 and is detachably connected to the connecting plate 20122.

[0062] It is understandable that by setting the second side plate 20121, it is possible to form a mounting groove 203 between the mounting part, the support part 2012 and the cover plate 202. At the same time, by abutting the cover plate 202 against the top of each second side plate 20121, and by setting the connecting plate 20122, it is possible to facilitate the easy assembly and disassembly of the cover plate 202.

[0063] Furthermore, in some exemplary embodiments, this embodiment combines Figure 3 , Figure 5 and Figure 6As shown, along the width direction of the longitudinal beam 200, the top of each second side plate 20121 has a first limiting protrusion 20123 extending toward the side of the connecting plate 20122, and a first limiting groove 20124 is formed between the connecting plate 20122, the two second side plates 20121 and the two first limiting protrusions 20123.

[0064] Furthermore, the cover plate 202 is connected to the connecting plate 20122 via the first fastening component 205, which is installed corresponding to the first limiting groove 20124. This allows for a detachable connection between the cover plate 202 and the connecting plate 20122 via the first fastening component 205, and the first limiting groove 20124 also facilitates the limiting installation of the first fastening component 205.

[0065] In specific implementations, in some exemplary embodiments, such as this one, the first fastening assembly 205 includes a first bolt 2051 with its head located in the first limiting groove 20124, and a first nut 2052 located on top of the cover plate 202. The shank of the first bolt 2051 passes through the cover plate 202 and is screwed into the first nut 2052, thereby realizing the installation of the cover plate 202 and the lower profile 201. The head being located in the first limiting groove 20124 not only reduces the space occupied by the first bolt 2051 but also facilitates the tightening operation of the first bolt 2051 and the first nut 2052.

[0066] Of course, the quantity and arrangement of the first fastening components 205 can be set and adjusted according to the actual installation requirements of the cover plate 202 and the lower profile 201. For example, the first fastening components 205 can be multiple components arranged at intervals along the length of the longitudinal beam 200.

[0067] Meanwhile, in some exemplary embodiments, in this embodiment, combined with Figures 5 to 7 As shown, the cover plate 202 is provided with a second limiting protrusion 2021 corresponding to each of the second side plates 20121. The two second side plates 20121 are located between the two second limiting protrusions 2021, and each second side plate 20121 abuts against its corresponding second limiting protrusion 2021.

[0068] That is, the two second side plates 20121 are positioned between the two second limiting protrusions 2021. Here, by providing the second limiting protrusions 2021 that abut against each of the second side plates 20121, the cover plate 202 can be positioned and installed on the support 2012, thereby improving the ease of installation of the cover plate 202.

[0069] Furthermore, in this embodiment, in some exemplary implementations, it is still as follows Figure 5 and Figure 6As shown, the mounting part includes a mounting part body 2011 and a support protrusion provided on the mounting part body 2011. The support protrusion is spaced apart from the support part 2012 and protrudes into the mounting groove 203. The support protrusion is used to support the photovoltaic module 300. The support protrusion and the mounting part body 2011 form a drainage channel 2013.

[0070] By setting up support protrusions to support the photovoltaic module 300 and forming a drainage channel 2013 between the support protrusions and the mounting body 2011, not only can the drainage function be realized and the risk of rainwater backflow be reduced, thus solving the problem of poor rain and backflow prevention function of the existing photovoltaic tile 301 and easy leakage, but it can also provide compensation space for the deformation of the photovoltaic module 300.

[0071] In some exemplary embodiments, in this example, the mounting body 2011 includes a base plate 20111, two first side plates 20112 arranged opposite to each other along the width direction of the longitudinal beam 200 on the base plate 20111, and a top plate 20113 disposed between the two first side plates 20112. The support portion 2012 is disposed on the top plate 20113. Furthermore, a cavity is formed between the base plate 20111, the top plate 20113, and the two first side plates 20112 to facilitate weight reduction of the longitudinal beam 200.

[0072] Furthermore, along the height direction of the longitudinal beam 200, the top of the first side plate 20112 extends upward into the mounting groove 203 to form the aforementioned support protrusion. This simplifies the structure and reduces the difficulty of manufacturing the longitudinal beam 200. In specific implementation, the drainage channel 2013 is formed between the support protrusion, the top plate 20113, and the support portion 2012, and remains as described above. Figure 5 As shown, on both sides of the width direction of the longitudinal beam 200, the drainage channel 2013 is specifically formed between the support protrusion, the top plate 20113, the support part 2012 and the photovoltaic module 300.

[0073] A second aspect of this utility model provides a photovoltaic roof, including an installation structure for mounting photovoltaic modules 300. The installation structure includes purlins and the aforementioned longitudinal beams 200 disposed on the purlins.

[0074] In some of the exemplary embodiments, in this embodiment, reference is again made to... Figure 1 As shown, there are multiple longitudinal beams 200 arranged sequentially. Photovoltaic modules 300 are inserted between the mounting slots 203 of two adjacent longitudinal beams 200, and multiple photovoltaic modules 300 are overlapped sequentially along the length of the longitudinal beams 200.

[0075] It is understandable that inserting the photovoltaic modules 300 between two adjacent mounting slots 203, and having multiple photovoltaic modules 300 sequentially overlapped along the length of the longitudinal beam 200, can make the layout reasonable and facilitate the construction of the photovoltaic roof.

[0076] In some of the exemplary embodiments, in this embodiment, combined with Figure 8 , Figure 11 and Figure 12 As shown, the photovoltaic module 300 includes a photovoltaic tile 301 and side frames 302 disposed on both sides of the photovoltaic tile 301 along the width direction of the longitudinal beam 200. Each side frame 302 is provided with a slot 3020 for engaging the photovoltaic tile 301.

[0077] Furthermore, the slot 3020 is gradually inclined upwards along the length of the longitudinal beam 200, so that in two adjacent photovoltaic modules 300, the bottom of the upper photovoltaic module 300 overlaps the top of the lower photovoltaic module 300. By tilting the slot 3020 in the side frame 302, it is easier to achieve the bottom of the upper photovoltaic module 300 overlapping the top of the lower photovoltaic module 300, thereby improving the convenience of photovoltaic roof construction.

[0078] In specific implementation, the bottom of the side frame 302 in this embodiment is also provided with an overlap groove located below the slot 3020, and the top of the lower photovoltaic module 300 is located in the overlap groove. At the same time, taking the stacking direction of the photovoltaic module 300 from top to bottom as a reference, the slot 3020 is inclined from low to high in the height direction. From the perspective of the bottom to the top of the longitudinal beam 200, the slot 3020 gradually slopes downward. Therefore, when the photovoltaic module 300 is installed on the longitudinal beam 200, in the height direction, the bottom of the upper photovoltaic module 300 is higher than the top of the lower photovoltaic module 300, so that the bottom of the upper photovoltaic module 300 overlaps the top of the lower photovoltaic module 300.

[0079] More specifically, for the top area of ​​the side frame 302, a first slot is provided on the side facing the light-facing side, and for the bottom area of ​​the side frame 302, a first slot is provided on the side away from the light-facing side, so that the top and bottom of the side frame 302 both form a stepped structure. When the photovoltaic module 300 is installed on the longitudinal beam 200, in the height direction, the bottom of the upper photovoltaic module 300 and the top of the lower photovoltaic module 300 can be spliced ​​and aligned through the stepped structure, and the lower edge of the upper photovoltaic tile 301 can cover the upper edge of the lower photovoltaic tile 301.

[0080] That is, Figure 9 and Figure 10As shown, to improve the sealing between the upper and lower photovoltaic modules 300, a first sealing strip 303 is provided on the top of the lower photovoltaic module 300 to seal the overlap between the upper and lower photovoltaic modules 300. If necessary, the first sealing strip 303 can cover the top of the lower photovoltaic module 300. It should be noted that... Figure 11 The image shows the side frame 302 installed on the left side of the photovoltaic tile 301, with its left end being the bottom. Figure 12 The image shows a side frame 302 installed on the right side of the photovoltaic tile 301, with its right end being the bottom.

[0081] Refer again Figure 5 As shown in this embodiment, to facilitate the installation of the side frame 302 in the mounting groove 203, a second slot 3021 opening towards the support portion 2012 can be provided at both the top and bottom of the side frame 302 if necessary. This second slot 3021 can provide compensation space for the top or bottom of the side frame 302 to deform inward, so as to facilitate the installation and removal of the side frame 302. Moreover, if necessary, a second sealing strip can be provided between each side frame 302 and the cover plate 202 to increase the sealing performance and prevent rainwater from flowing into the mounting groove 203.

[0082] Furthermore, in some exemplary embodiments, this embodiment combines Figure 1 and Figure 2 As shown, the mounting structure includes a retaining member 204 located at the bottom of the longitudinal beam 200. The retaining member 204 is used to prevent the photovoltaic module 300 from slipping out of the mounting groove 203. The retaining member 204 is connected to the support part 2012 via a second fastening assembly 206.

[0083] This configuration not only improves the installation reliability of the photovoltaic module 300, but also facilitates easy assembly and disassembly between the retaining member 204 and the support part 2012, as the retaining member 204 is connected to the support part 2012 via the second fastener assembly. It should be noted that... Figure 1 The bottom end of the left longitudinal beam 200 is provided with a stop 204, while the bottom end of the right longitudinal beam 200 is not provided with a stop 204. This is mainly to facilitate the illustration of the structure of the longitudinal beam 200 and the stop 204. In actual application, the bottom end of the right longitudinal beam 200 should also be provided with a stop 204.

[0084] Meanwhile, in some exemplary embodiments, a drainage gap 20411 corresponding to each mounting groove 203 is formed between the bottom of the retaining member 204 and the mounting portion, and each drainage gap 20411 is connected to the corresponding drainage channel 2013. This prevents water accumulation at the retaining member 204, thus ensuring the overall drainage performance of the longitudinal beam 200.

[0085] In specific implementation, combined with Figure 2 , Figures 13 to 15As shown, the second fastening assembly 206 in this embodiment includes a second bolt 2061 passing through the stop member 204 and the support portion 2012, and a nut screwed to the second bolt 2061. Specifically, the stop member 204 is provided with an adapter groove 2042 that is adapted to the support portion 2012. The adapter groove 2042 is located in the middle of the stop member 204 along the width direction of the longitudinal beam 200, so that the stop member 204 and the support portion 2012 can be inserted and fitted together, and the photovoltaic modules 300 in the mounting slots 203 on each side of the grid can also be blocked by the blocking portions of the stop member 204 located on both sides of the adapter groove 2042.

[0086] Furthermore, the retaining member 204 is provided with a through hole 2043 arranged along the width direction of the longitudinal beam 200. The through hole 2043 is connected to the adapter groove 2042. The two second side plates 20121 in the support part 2012 are provided with side plate through holes corresponding to the through hole 2043, so that the second bolt 2061 can be inserted into the through hole 2043 and screwed into the second nut 2062, thereby realizing the connection between the support part 2012 and the retaining member 204.

[0087] In addition, the bottom of the baffle 204 is provided with a groove 2041 so that the bottom of the baffle 204 has legs on both sides along the width direction of the longitudinal beam 200. After the baffle 204 is assembled with the support 2012, each leg is supported on the top plate 20113. Based on the setting of the groove 2041, the above-mentioned drainage gap 20411 can be formed between the baffle 204, each leg and the top plate 20113, thereby avoiding water accumulation at the baffle 204 and ensuring the overall drainage performance of the longitudinal beam 200.

[0088] The photovoltaic roof of this embodiment, by setting the aforementioned longitudinal beams 200, facilitates the installation and disassembly of the photovoltaic modules 300, solving the problems of complex installation and disassembly of existing photovoltaic modules 300, inconvenience in later maintenance and replacement, and thus has a better performance.

[0089] The above descriptions are merely some embodiments of this utility model and are not intended to limit the utility model. The technical features or structures in the foregoing different embodiments can be arbitrarily combined to form other specific technical solutions as needed. For those skilled in the art, this utility model can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A longitudinal beam (200) disposed on a purlin in a photovoltaic roof, characterized in that: Includes the lower profile (201) and the cover plate (202); The lower profile (201) includes a mounting portion disposed on the purlin and a support portion (2012) disposed on the top of the mounting portion; The cover plate (202) is detachably disposed on the support part (2012), and an installation groove (203) is formed between the mounting part, the support part (2012) and the cover plate (202). The support part (2012) is provided with the installation groove (203) on both sides along the width direction of the longitudinal beam (200), and each of the installation grooves (203) is used to install the photovoltaic module (300).

2. The longitudinal beam (200) according to claim 1, characterized in that: The support (2012) includes two opposing second side plates (20121) disposed on the top of the mounting part, and a connecting plate (20122) disposed between the two second side plates (20121), and the cover plate (202) abuts against the top of each of the second side plates (20121) and is detachably connected to the connecting plate (20122).

3. The longitudinal beam (200) according to claim 2, characterized in that: Along the width direction of the longitudinal beam (200), the top of each of the second side plates (20121) has a first limiting protrusion (20123) extending toward the side of the connecting plate (20122), and a first limiting groove (20124) is formed between the connecting plate (20122), the two second side plates (20121) and the two first limiting protrusions (20123); The cover plate (202) is connected to the connecting plate (20122) via a first fastening assembly (205), which is installed corresponding to the first limiting groove (20124).

4. The longitudinal beam (200) according to claim 2, characterized in that: The cover plate (202) is provided with a second limiting protrusion (2021) corresponding to each of the second side plates (20121). The two second side plates (20121) are located between the two second limiting protrusions (2021), and each second side plate (20121) abuts against the corresponding second limiting protrusion (2021).

5. The longitudinal beam (200) according to any one of claims 1 to 4, characterized in that: The mounting portion includes a mounting portion body (2011) and a support protrusion disposed on the mounting portion body (2011). The support protrusion is provided at a distance from the support portion (2012) and protrudes into the mounting groove (203). The support protrusion is used to support the photovoltaic module (300). The support protrusion and the mounting portion body (2011) form a drainage channel (2013).

6. The longitudinal beam (200) according to claim 5, characterized in that: The mounting body (2011) includes a base plate (20111), two first side plates (20112) arranged opposite to each other along the width direction of the longitudinal beam (200) on the base plate (20111), and a top plate (20113) disposed between the two first side plates (20112), and the support part (2012) is disposed on the top plate (20113); A cavity is formed between the bottom plate (20111), the top plate (20113), and the two first side plates (20112), and / or, along the height direction of the longitudinal beam (200), the top of the first side plate (20112) extends upward into the mounting groove (203) to form the support protrusion.

7. A photovoltaic roof, characterized in that: Includes an installation structure for mounting photovoltaic modules (300); The mounting structure includes purlins and a longitudinal beam (200) provided on the purlins as described in any one of claims 1 to 6.

8. The photovoltaic roof according to claim 7, characterized in that: The longitudinal beams (200) are multiple beams arranged in sequence; The photovoltaic module (300) is inserted between the mounting slots (203) of two adjacent longitudinal beams (200), and the photovoltaic module (300) consists of multiple modules that are sequentially overlapped along the length of the longitudinal beam (200).

9. The photovoltaic roof according to claim 8, characterized in that: The photovoltaic module (300) includes a photovoltaic tile (301) and side frames (302) disposed on both sides of the photovoltaic tile (301) along the width direction of the longitudinal beam (200). Each side frame (302) is provided with a slot (3020) for snapping the photovoltaic tile (301). Based on the stacking direction of the photovoltaic modules (300) from top to bottom, the slots (3020) are inclined from low to high in the height direction so that in two adjacent photovoltaic modules (300), the bottom of the upper photovoltaic module (300) overlaps the top of the lower photovoltaic module (300).

10. The photovoltaic roof according to claim 7, characterized in that: The mounting structure includes a retaining member (204) disposed at the bottom of the longitudinal beam (200), the retaining member (204) being used to prevent the photovoltaic module (300) from slipping out of the mounting groove (203); The stop (204) is connected to the support (2012) via the second fastening assembly (206); and / or, a drainage gap (20411) corresponding to each of the mounting grooves (203) is formed between the bottom of the stop (204) and the mounting part, and each of the drainage gaps (20411) is connected to the corresponding drainage channel (2013).

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