CN219060656U - BIPV factory building roof boarding - Google Patents

Abstract

The utility model discloses a BIPV factory building roof board which comprises a plurality of single element frames and a plurality of photovoltaic modules, wherein the single element frames comprise main frames which are arranged in parallel, two ends of each main frame are vertically and fixedly connected with end frames, a plurality of middle frames are fixedly connected between the end frames, a plurality of photovoltaic module installation areas are formed between the single element frames, and the photovoltaic modules are fixedly connected in the installation areas. The utility model is a modularized product, a single element frame, a heat preservation layer and a steel wire mesh are assembled in a factory to form a single element, the single element is directly arranged on a door-type rigid frame steel beam, then a corner support connecting piece is arranged, and finally a photovoltaic module is arranged; meanwhile, roof boards are connected with each other, and form a roof system with the seam waterproof coiled material and the ridge fan, so that the roof system has the functions of water resistance, fire resistance, heat preservation, ventilation, cooling, power generation and the like, is convenient to install, has good durability and high reliability, is convenient to maintain, can realize industrialized production, and reduces production cost.

Description

BIPV factory building roof boarding

Technical Field

The utility model relates to the technical field of roof boards, in particular to a BIPV factory building roof board.

Background

The integrated Photovoltaic building (BIPV Building Integrated PV, photovoltaic) is a technology for integrating a solar power generation (Photovoltaic) product onto a building, and has the following problems with the design and construction of the building at the same time:

1. the installation is inconvenient: the current construction flow of the photovoltaic roof of the factory building is as follows: door type rigid frame steel girder, purlin, steel wire mesh, heat preservation layer, color steel plate, photovoltaic bracket and photovoltaic module; the parts are more, the installation process is complicated, and industrial production is difficult to realize;

2. the service life is short: the service life of the color steel plate is 15 years, and the photovoltaic design life is 25 years, so that the color steel plate is required to be subjected to corrosion prevention treatment, the process is complex, and manpower and material resources are consumed;

3. poor waterproof performance: as the color steel plates are mostly connected in a mutual engagement way, once water leaks, water leakage points are difficult to find, and once water leaks, equipment and products in a factory building are lost;

4. poor ventilation performance: because the photovoltaic module generates heat when in operation, the power generation efficiency is reduced, and the photovoltaic roof of the existing factory building is not provided with ventilation and cannot be ventilated and ventilated;

5. the cost is higher: the use of color plates and photovoltaic brackets can increase the cost of the roof panels.

Therefore, there is a need to develop a new type of BIPV factory building roof panel to solve the above problems.

Disclosure of Invention

The utility model aims to provide a BIPV factory building roof board for solving the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a BIPV factory building roof boarding, includes a plurality of single component frames and a plurality of photovoltaic module, the single component frame includes parallel arrangement's main frame, the perpendicular fixedly connected with of main frame both ends holds the frame, the frame in fixedly connected with between the frame, form a plurality of photovoltaic module installation district between the single component frame, photovoltaic module fixed connection is in the installation district.

As a further scheme of the utility model: the main frame is formed by cold bending, and comprises a first horizontal supporting surface, a second horizontal supporting surface and a first vertical supporting surface, wherein the first horizontal supporting surface and the second horizontal supporting surface are respectively and vertically connected to two ends of the same side of the first vertical supporting surface, the other end of the first horizontal supporting surface is vertically connected with a first vertical flanging, the other end of the first vertical flanging is vertically connected with a first horizontal flanging, the first vertical flanging and the first vertical supporting surface are respectively located on the upper side and the lower side of the first horizontal supporting surface, nuts are arranged on the first vertical flanging, and screw holes and ventilation holes are formed in the first vertical supporting surface.

As a further scheme of the utility model: the end frame is formed by cold bending and comprises a second vertical supporting surface and a third horizontal supporting surface, one end of the third horizontal supporting surface is vertically connected with one end of the second vertical supporting surface, the other end of the third horizontal supporting surface is vertically connected with a second vertical flanging, the other end of the second vertical flanging is connected with a second horizontal flanging, the second vertical flanging and the second vertical supporting surface are respectively located on the upper side and the lower side of the third horizontal supporting surface, and nuts are arranged on the second vertical flanging.

As a further scheme of the utility model: the middle frame is formed by cold bending and comprises a fourth horizontal supporting surface, a third vertical flanging and a fourth vertical flanging are vertically connected to the same side of two ends of the fourth horizontal supporting surface, a third horizontal flanging and a fourth horizontal flanging are respectively and vertically connected to the other ends of the third vertical flanging and the fourth vertical flanging, the third horizontal flanging and the fourth horizontal flanging are oppositely arranged, and nuts are respectively arranged on the third vertical flanging and the fourth vertical flanging.

As a further scheme of the utility model: the photovoltaic assembly comprises a photovoltaic plate and a plurality of photovoltaic plate fixing pieces, and the photovoltaic plate fixing pieces are fixedly connected with the photovoltaic plate; the photovoltaic panel fixing piece comprises a supporting part and a fifth horizontal flanging connected with the supporting part, a photovoltaic panel connecting groove is formed between the supporting part and the fifth horizontal flanging, the other end of the fifth horizontal flanging is connected with a fifth vertical flanging, and a screw hole is formed in the fifth vertical flanging.

As a further scheme of the utility model: the widths of the first horizontal flanging, the second horizontal flanging, the third horizontal flanging and the fourth horizontal flanging are the same, the widths of the first horizontal flanging, the second horizontal flanging, the third horizontal flanging, the fourth horizontal flanging and the fifth horizontal flanging are smaller than the widths of the fifth horizontal flanging, and waterproof adhesive tapes are arranged between the first horizontal flanging, the second horizontal flanging, the third horizontal flanging, the fourth horizontal flanging and the fifth horizontal flanging; screw holes on the fifth vertical flanging correspond to the positions of nuts on the first vertical flanging, the second vertical flanging, the third vertical flanging and the fourth vertical flanging.

As a further scheme of the utility model: the single element frame is fixedly connected with a plurality of supporting pieces, the supporting pieces are formed by cold bending and are respectively fixedly connected with the main frame, the end frame and the middle frame and used for supporting the supporting parts of the photovoltaic modules; a support reinforcing piece is fixedly connected below the end part of the main frame, and the support reinforcing piece is formed by cold bending; the two ends below the main frame are respectively connected with the corner supports through connecting pieces, and the connecting pieces are formed by cold bending.

As a further scheme of the utility model: performing waterproof treatment on the single element frame splicing part by using a TPO waterproof coiled material; the solar photovoltaic module is characterized in that a ventilation layer is arranged between the single-element frame and the photovoltaic module, an insulation layer is arranged below the ventilation layer, a steel wire mesh is arranged below the insulation layer, and the steel wire mesh is arranged at the bottom of the main frame and fixedly connected with the bottom of the main frame along the length direction.

As a further scheme of the utility model: the heat preservation layer is made of fireproof heat preservation materials, aluminum foils are adhered to the two sides of the heat preservation layer, and the heat preservation layer is placed on the steel wire net and is connected with the inner side of the main frame in an adhesive mode; the ventilation layer is communicated with a ridge fan.

As a further scheme of the utility model: and carrying out corrosion-resistant treatment on the surface of the single element frame.

Compared with the prior art, the utility model has the beneficial effects that: the utility model is a modularized product, a main frame, an end frame, a middle frame, a supporting piece, a support reinforcing piece, a heat preservation layer and a steel wire mesh are assembled into a single element, the single element is directly arranged on a door-type rigid frame steel beam, a corner support connecting piece is arranged, and a photovoltaic assembly is arranged; the functions of purlines, steel wire nets, heat preservation layers, color steel plates, photovoltaic supports, photovoltaic modules and the like in the existing design are integrated, meanwhile, roof plate single elements are connected with each other, and a roof system is formed by the roof plate single elements, the waterproof coiled materials and the ridge fans, so that the waterproof, fireproof, heat preservation, ventilation, cooling, power generation and the like are realized, and the installation is convenient; the single element frame adopts the anti-corrosion treatment, has good durability, high reliability and convenient maintenance, can realize industrialized production and reduces the production cost.

Drawings

FIG. 1 is a schematic diagram of the front structure of the present utility model;

FIG. 2 is a schematic view of the transverse section structure of the present utility model;

FIG. 3 is a schematic view of a longitudinal section of the present utility model;

FIG. 4 is an enlarged view of the utility model at A in FIG. 2;

FIG. 5 is an enlarged view of the utility model at B in FIG. 2;

FIG. 6 is an enlarged view of FIG. 3 at C in accordance with the present utility model;

FIG. 7 is a cut-away view of the main frame of the present utility model;

FIG. 8 is a cut-away view of an end frame of the present utility model;

FIG. 9 is a cut-away view of a bezel in the present utility model;

FIG. 10 is a block diagram of a second embodiment of the photovoltaic module of the present utility model coupled to a main frame;

fig. 11 is a structural diagram of a third embodiment of the connection of the photovoltaic module of the present utility model to the main frame.

In the figure: 1-single element frame, 11-main frame, 111-first horizontal support surface, 112-second horizontal support surface, 113-first vertical support surface, 1131-vent, 114-first vertical flange, 115-first horizontal flange, 12-end frame, 121-second vertical support surface, 122-third horizontal support surface, 123-second vertical flange, 124-second horizontal flange, 13-middle frame, 131-fourth horizontal support surface, 132-third vertical flange, 133-fourth vertical flange, 134-third horizontal flange, 135-fourth horizontal flange, 2-photovoltaic module, 21-photovoltaic panel, 22-photovoltaic panel mount, 221-support portion, 221 a-support mount, 222-sixth horizontal flange, 222 a-sixth horizontal flange, 223-fifth vertical flange, 223 a-sixth vertical flange, 3-support, 4-support stiffener, 5-connector, 100-ventilation layer, 200-insulation layer, 300-steel wire mesh.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, in an embodiment of the present utility model, a roof board for a BIPV factory building includes a plurality of unit frames 1 and a plurality of photovoltaic modules 2, the unit frames 1 include main frames 11 arranged in parallel, two ends of each main frame 11 are vertically and fixedly connected with end frames 12, a plurality of middle frames 13 are fixedly connected between the end frames 12, a plurality of installation areas for the photovoltaic modules 2 are formed between the unit frames 1, and the photovoltaic modules 2 are fixedly connected in the installation areas.

Further, as shown in fig. 6 and fig. 7, the main frame 11 is formed by cold bending, and includes a first horizontal supporting surface 111, a second horizontal supporting surface 112, and a first vertical supporting surface 113, where the first horizontal supporting surface 111 and the second horizontal supporting surface 112 are respectively and vertically connected to two ends of the same side of the first vertical supporting surface 113, the other end of the first horizontal supporting surface 111 is vertically connected with a first vertical flange 114, the other end of the first vertical flange 114 is vertically connected with a first horizontal flange 115, the first vertical flange 114 and the first vertical supporting surface 113 are respectively located on the upper side and the lower side of the first horizontal supporting surface 111, nuts are arranged on the first vertical flange 114, and screw holes and ventilation holes 1131 are arranged on the first vertical supporting surface 113. Screw holes are formed in the upper side and the lower side of the vent holes 1131 of the first vertical supporting surface 113, two adjacent main frames 11 are connected through bolts through screw holes formed in the upper side and the lower side of the vent holes 1131, and the positions of the screw holes in the second horizontal supporting surface 112 are set according to the corner support positions and are used for connecting and fixing the connecting pieces 5; the ventilation holes 1131 are arranged at intervals along the length direction of the main frame 11, and all the ventilation layers 100 of the roof board are mutually communicated.

Further, as shown in fig. 4 and 8, the end frame 12 is formed by cold bending, and includes a second vertical supporting surface 121 and a third horizontal supporting surface 122, one end of the third horizontal supporting surface 122 is vertically connected to one end of the second vertical supporting surface 121, the other end of the third horizontal supporting surface 122 is vertically connected with a second vertical flange 123, the other end of the second vertical flange 123 is connected with a second horizontal flange 124, the second vertical flange 123 and the second vertical supporting surface 121 are respectively located on the upper side and the lower side of the third horizontal supporting surface 122, and a nut is arranged on the second vertical flange 123. The intersection of the end frame 12 and the end part of the main frame 11 is fixedly welded.

Further, as shown in fig. 5 and fig. 9, the middle frame 13 is formed by cold bending, and includes a fourth horizontal supporting surface 131, two identical sides at two ends of the fourth horizontal supporting surface 131 are vertically connected with a third vertical flange 132 and a fourth vertical flange 133, the other ends of the third vertical flange 132 and the fourth vertical flange 133 are respectively and vertically connected with a third horizontal flange 134 and a fourth horizontal flange 135, the third horizontal flange 134 and the fourth horizontal flange 135 are oppositely arranged, and nuts are respectively arranged on the third vertical flange 132 and the fourth vertical flange 133. The intersection of the middle frame 13 and the main frame 11 is welded and connected.

Further, the photovoltaic module 2 includes a photovoltaic panel 21 and a plurality of photovoltaic panel fixing members 22, and the photovoltaic panel fixing members 22 are fixedly connected with the photovoltaic panel 21; the photovoltaic panel fixing piece 22 comprises a supporting portion 221 and a fifth horizontal flange 222 connected with the supporting portion 221, a photovoltaic panel 21 installation groove is formed between the supporting portion 221 and the fifth horizontal flange 222, a fifth vertical flange 223 is connected to the other end of the fifth horizontal flange 222, and a screw hole is formed in the fifth vertical flange 223. As shown in fig. 4-6, the fifth horizontal flange 222 and the fifth vertical flange 223 of the photovoltaic fixture 22 may completely house the nuts on the first horizontal flange 115 and the first vertical flange 114 of the main frame 11, the nuts on the second horizontal flange 124 and the second vertical flange 123 of the end frame 12, the nuts on the third horizontal flange 134 and the third vertical flange 132 of the middle frame, and the nuts on the fourth horizontal flange 135 and the fourth vertical flange 133, respectively.

Further, the widths of the first horizontal flange 115, the second horizontal flange 124, the third horizontal flange 134 and the fourth horizontal flange 135 are the same, and are smaller than the width of the fifth horizontal flange 222, and waterproof adhesive tapes are arranged at the joints of the first horizontal flange 115, the second horizontal flange 124, the third horizontal flange 134, the fourth horizontal flange 135 and the fifth horizontal flange 222; screw holes in the fifth vertical flange 223 correspond to nut positions in the first, second, third and fourth vertical flanges 114, 123, 132 and 133. The photovoltaic module 2 is respectively connected and fixed with a nut on the first vertical flange 114 of the main frame 11, a nut on the second vertical flange 123 of the end frame 12 and a nut on the third vertical flange 132 and the fourth vertical flange 133 of the middle frame 13 through screw holes on the fifth vertical flange 223.

As shown in fig. 10, as a second embodiment of the connection between the photovoltaic module 2 and the unit frame 1, taking connection with the main frame 11 as an example, the photovoltaic module 2 includes a support fixing portion 221a, the support fixing portion 221a is located on the first horizontal supporting surface 111, a waterproof adhesive tape is disposed between the support fixing portion 221a and the first horizontal supporting surface 111, a mounting groove of the photovoltaic panel 21 is disposed above the support fixing portion 221, the support fixing portion 221a is connected with the sixth horizontal flange 222a and is used for supporting the photovoltaic panel 21, the sixth horizontal flange 222a is vertically connected with a sixth vertical flange 223a, a waterproof adhesive tape is disposed between the sixth horizontal flange 222a and the first horizontal flange 115, and a screw hole is disposed on the support fixing portion 221a, and corresponds to a position of a nut on the first vertical flange 114 and is connected through a bolt.

As shown in fig. 11, as a third embodiment of the connection between the photovoltaic module 2 and the single-element frame 1, taking connection with the main frame 11 as an example, the photovoltaic panel 21 is directly mounted on the first horizontal supporting surface 111, and a waterproof adhesive tape is disposed between the photovoltaic panel and the first horizontal supporting surface 111, and the end of the photovoltaic panel 21 is fixedly connected with a frame, which plays a role in waterproofing and fixing.

Further, as shown in fig. 2, the single element frame 1 is fixedly connected with a plurality of supporting members 3, and the supporting members 3 are formed by cold bending and are respectively fixedly connected with the main frame 11, the end frame 12 and the middle frame 13, and are used for supporting the supporting parts 221 of the photovoltaic modules 2; a support reinforcing piece 4 is fixedly connected below the end part of the main frame 11, and the support reinforcing piece 4 is formed by cold bending; the two ends below the main frame 11 are respectively connected with the corner supports through connecting pieces 5, and the connecting pieces 5 are formed by cold bending. The supporting piece 3, the support reinforcing piece 4 and the connecting piece 5 are all L-shaped structures formed by cold bending.

Furthermore, the joint of the single element frame 1 is subjected to waterproof treatment by using TPO waterproof coiled materials; the ventilating layer 100 is arranged between the single-element frame 1 and the photovoltaic module 2, the heat preservation layer 200 is arranged below the ventilating layer 100, the steel wire mesh 300 is arranged below the heat preservation layer 200, and the steel wire mesh 300 is fixedly connected with the bottom of the main frame 11 along the length direction. The heat preservation layer 200 is used for carrying out fire prevention and heat preservation on the roof board, the steel wire mesh 300 is used for supporting the heat preservation layer 200, the TPO waterproof coiled material can carry out further waterproof treatment on the roof board, and the waterproof performance of the roof board is enhanced.

Further, the heat-insulating layer 200 is made of fireproof heat-insulating material, aluminum foils are adhered to the two surfaces of the heat-insulating layer 200, and the heat-insulating layer 200 is placed on the steel wire mesh 300 and is adhered to the inner side of the main frame 11; the ventilation layer 100 is in communication with a ridge fan.

As another embodiment of the present utility model, the insulation layer 200 and the steel wire mesh 300 may be replaced with ALC insulation boards (with ribs), fiber cement boards, etc., and directly installed at the bottom of the main frame 11 to perform fire protection and insulation for the roof boards.

Furthermore, the surface of the single element frame 1 is subjected to corrosion prevention treatment. The utility model cancels the color steel plate, and the single element frame 1 adopts the anti-corrosion measures of hot dip galvanizing, hot dip plastic coating and the like, thereby ensuring the service life to be more than 25 years.

When in installation, the length of the roof board is the column spacing of a factory building and is generally 6.0-10.0m; the width of the roof board is determined according to the length of the photovoltaic module and is generally 1.5-2.6m; firstly, assembling a main frame 11, an end frame 12, a middle frame 13, a supporting piece 3, a support reinforcing piece 4, an insulating layer 200 and a steel wire mesh 300 in a factory to form single elements, directly installing a plurality of roof plate single elements on a door-type rigid frame steel beam according to the length of the door-type rigid frame steel beam, installing a fixed corner support connecting piece between the door-type rigid frame steel beam through screw holes on the main frame 11 for fixing the roof plate single elements, and installing a photovoltaic module 2 in an installation area of the photovoltaic module 2 on the single elements and fixing the photovoltaic module 2 with the single elements through a bolt structure after the installation between the roof plate single elements and the door-type rigid frame steel beam is completed; at the roof board splice, adopt sealant + TPO waterproofing membrane twice waterproof, ensure not seepage, all roof boards interconnect, form roofing system with seam waterproofing membrane, roof ridge fan, adopt power to take a breath, have waterproof, fire prevention, keep warm, ventilation, cooling, function such as electricity generation, and simple to operate, good durability, reliability height, be convenient for maintain.

Although the present disclosure describes embodiments, not every embodiment is described in terms of a single embodiment, and such description is for clarity only, and one skilled in the art will recognize that the embodiments described in the disclosure as a whole may be combined appropriately to form other embodiments that will be apparent to those skilled in the art.

Therefore, the above description is only of the preferred embodiments of the present application and is not intended to limit the scope of the present application; all changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims (10)

1. The utility model provides a BIPV factory building roof boarding, includes a plurality of single component frames (1) and a plurality of photovoltaic module (2), its characterized in that, single component frame (1) are including parallel arrangement's main frame (11), main frame (11) both ends perpendicular fixedly connected with end frame (12), fixedly connected with is frame (13) in a plurality of between end frame (12), form a plurality of photovoltaic module (2) installation district between single component frame (1), photovoltaic module (2) fixed connection is in the installation district.

2. The BIPV factory building roof board according to claim 1, wherein the main frame (11) is formed by cold bending, and comprises a first horizontal supporting surface (111), a second horizontal supporting surface (112) and a first vertical supporting surface (113), the first horizontal supporting surface (111) and the second horizontal supporting surface (112) are respectively and vertically connected to two ends of the same side of the first vertical supporting surface (113), the other end of the first horizontal supporting surface (111) is vertically connected with a first vertical flanging (114), the other end of the first vertical flanging (114) is vertically connected with a first horizontal flanging (115), the first vertical flanging (114) and the first vertical supporting surface (113) are respectively located on the upper side and the lower side of the first horizontal supporting surface (111), nuts are arranged on the first vertical flanging (114), and screw holes and ventilation holes (1131) are formed in the first vertical supporting surface (113).

3. The BIPV factory building roof board according to claim 2, wherein the end frame (12) is formed by cold bending, and comprises a second vertical supporting surface (121) and a third horizontal supporting surface (122), one end of the third horizontal supporting surface (122) is vertically connected to one end of the second vertical supporting surface (121), the other end of the third horizontal supporting surface (122) is vertically connected with a second vertical flanging (123), the other end of the second vertical flanging (123) is connected with a second horizontal flanging (124), the second vertical flanging (123) and the second vertical supporting surface (121) are respectively located on the upper side and the lower side of the third horizontal supporting surface (122), and nuts are arranged on the second vertical flanging (123).

4. A BIPV factory building roof board according to claim 3, wherein the middle frame (13) is formed by cold bending and comprises a fourth horizontal supporting surface (131), a third vertical flanging (132) and a fourth vertical flanging (133) are vertically connected to the same side of two ends of the fourth horizontal supporting surface (131), a third horizontal flanging (134) and a fourth horizontal flanging (135) are vertically connected to the other ends of the third vertical flanging (132) and the fourth vertical flanging (133) respectively, the third horizontal flanging (134) and the fourth horizontal flanging (135) are oppositely arranged, and nuts are respectively arranged on the third vertical flanging (132) and the fourth vertical flanging (133).

5. The BIPV house roof panel according to claim 4, wherein the photovoltaic module (2) comprises a photovoltaic panel (21) and a plurality of photovoltaic panel fixtures (22), the photovoltaic panel fixtures (22) being fixedly connected to the photovoltaic panel (21); the photovoltaic panel fixing piece (22) comprises a supporting portion (221) and a fifth horizontal flanging (222) connected with the supporting portion (221), a photovoltaic panel (21) mounting groove is formed between the supporting portion (221) and the fifth horizontal flanging (222), a fifth vertical flanging (223) is connected to the other end of the fifth horizontal flanging (222), and a screw hole is formed in the fifth vertical flanging (223).

6. The BIPV factory building roof panel according to claim 5, wherein the first, second, third and fourth horizontal flanges (115, 124, 134, 135) have the same width and are smaller than the fifth horizontal flange (222), and waterproof adhesive tapes are provided at the joints between the first, second, third, and fourth horizontal flanges (115, 124, 134, 135) and the fifth horizontal flange (222); screw holes in the fifth vertical flange (223) correspond to nut positions in the first vertical flange (114), the second vertical flange (123), the third vertical flange (132) and the fourth vertical flange (133).

7. The BIPV factory building roof board according to claim 5, wherein a plurality of supporting pieces (3) are fixedly connected to the single element frame (1), the supporting pieces (3) are formed by cold bending and are fixedly connected with the main frame (11), the end frames (12) and the middle frame (13) respectively, and are used for supporting the supporting parts (221) of the photovoltaic modules (2); a support reinforcing piece (4) is fixedly connected below the end part of the main frame (11), and the support reinforcing piece (4) is formed by cold bending; the two ends below the main frame (11) are respectively connected with the corner brace through connecting pieces (5), and the connecting pieces (5) are formed by cold bending.

8. The BIPV factory building roof board according to claim 1, wherein the joints of the single element frames (1) are waterproof treated by TPO waterproof coiled materials; be equipped with ventilation layer (100) between single element frame (1) and photovoltaic module (2), ventilation layer (100) below is equipped with heat preservation (200), heat preservation (200) below is equipped with wire net (300), wire net (300) are located main frame (11) bottom along length direction fixed connection.

9. The roof board of a BIPV factory building according to claim 8, wherein the heat preservation layer (200) is made of fireproof heat preservation material, aluminum foils are adhered to the two sides, and the heat preservation layer (200) is placed on a steel wire mesh (300) and is adhered and connected with the inner side of the main frame (11); the ventilation layer (100) is communicated with a ridge fan.

10. The roof panel of a BIPV plant according to claim 9, wherein the surface of the frame (1) of the unit element is subjected to a corrosion-preventing treatment.

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