CN113898127A - Photovoltaic roof built by thin-film photovoltaic tiles and lap joint building method thereof - Google Patents
Photovoltaic roof built by thin-film photovoltaic tiles and lap joint building method thereof Download PDFInfo
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- CN113898127A CN113898127A CN202111194104.7A CN202111194104A CN113898127A CN 113898127 A CN113898127 A CN 113898127A CN 202111194104 A CN202111194104 A CN 202111194104A CN 113898127 A CN113898127 A CN 113898127A
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- 238000010248 power generation Methods 0.000 claims abstract description 41
- 238000009434 installation Methods 0.000 claims abstract description 31
- 239000005357 flat glass Substances 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 17
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
- E04D3/36—Connecting; Fastening
- E04D3/3605—Connecting; Fastening of roof covering supported directly by the roof structure
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D12/00—Non-structural supports for roofing materials, e.g. battens, boards
- E04D12/004—Battens
- E04D12/006—Batten-supporting means
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
- E04D13/0404—Drainage on the roof surface
- E04D13/0477—Underroof drainage layers
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
- E04D3/36—Connecting; Fastening
- E04D3/3605—Connecting; Fastening of roof covering supported directly by the roof structure
- E04D3/3606—Connecting; Fastening of roof covering supported directly by the roof structure the fastening means being screws or nails
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
- E04D3/38—Devices for sealing spaces or joints between roof-covering elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/0445—PV modules or arrays of single PV cells including thin film solar cells, e.g. single thin film a-Si, CIS or CdTe solar cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/048—Encapsulation of modules
- H01L31/0488—Double glass encapsulation, e.g. photovoltaic cells arranged between front and rear glass sheets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S20/00—Supporting structures for PV modules
- H02S20/20—Supporting structures directly fixed to an immovable object
- H02S20/22—Supporting structures directly fixed to an immovable object specially adapted for buildings
- H02S20/23—Supporting structures directly fixed to an immovable object specially adapted for buildings specially adapted for roof structures
- H02S20/25—Roof tile elements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/10—Photovoltaic [PV]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Energy (AREA)
- Sustainable Development (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a photovoltaic roof built by thin-film photovoltaic tiles and a lapping construction method thereof, wherein the photovoltaic roof comprises a roof main body (2) and a plurality of thin-film photovoltaic tiles (1) positioned on the roof main body (2), and the thin-film photovoltaic tiles (1) sequentially comprise: the solar photovoltaic power generation device comprises front plate toughened glass (11), an adhesive film (12), a sealing strip layer (13), a thin film photovoltaic power generation layer (14) and back plate glass (15); one side of the film photovoltaic tile is provided with a water guide purlin (16); one side edge adjacent to the water guide purline (16) is provided with a rain-proof rubber strip (17), and the outer side of the rain-proof rubber strip (17) is provided with a hanging beam (18). The photovoltaic roof can be used for manufacturing products of different styles, such as Dai-nationality buildings and Chinese buildings, and has the power generation function of the photovoltaic power station, compared with the traditional roof photovoltaic power station, the photovoltaic roof can save the installation time and supporting materials, and the cost of installing the photovoltaic power station on the roof is greatly reduced.
Description
Technical Field
The invention belongs to the field of photovoltaic roof building materials, and particularly relates to a photovoltaic roof built by thin-film photovoltaic tiles and a lap joint building method thereof.
Background
The limited fossil energy is gradually reduced and even nearly exhausted, and the requirement of environmental governance is met, so that more green energy is required by human beings to replace the fossil energy. In the field of photovoltaic power generation, the problems of land limitation, unbalanced power utilization (large power consumption in the east region, small land resources, small power consumption in the west region, high transmission cost of redundant electric energy) and the like exist. Resulting in the eastern areas with high power usage not having too much land resources to build ground photovoltaic power plants. Therefore, the house building roof becomes rich and high-quality photovoltaic power station construction resources, the integration of the photovoltaic building roof is realized, more roof idle resources are utilized to construct more photovoltaic power stations, the energy conservation, emission reduction and economic benefits are realized, and the trend of future buildings is realized.
Building integrated photovoltaics are also known as BIPV, i.e. the photovoltaic modules themselves are integral parts of the building material. The building is not only an energy consumption unit but also a green building which creates electric energy by itself due to the integration of the photovoltaic building.
At present, traditional building roof installation photovoltaic system is mainly built on having the roof, and must wait that the roof construction finishes just can carry out photovoltaic module's installation, has increased construction cost, and can reduce the life on roof because secondary construction damages the roof.
Invention patent CN 104120817 a application published date 2014 10 month 29, patent name: the patent discloses a modularized solar photovoltaic roof, and relates to the modularized solar photovoltaic roof. The module comprises a groined grid beam frame, a concrete thin plate poured by cement, a window frame and a photovoltaic module.
The problem that this modularization solar photovoltaic roof exists is: 1. the concrete slab needs to be manufactured on site, the concrete slab poured by cement needs to be poured on site, the manufacturing and installation quality is difficult to guarantee, the manufacturing and installation process is complex, and the technical requirement on installation personnel is high; 2. because the raw materials are purchased and manufactured on site, the raw materials are purchased and scattered, the purchase cost is high, and the quality of the raw materials is uneven. 3. The structure is difficult to realize large-area installation, and the requirements of lighting, heat preservation, dust prevention and the like of modern large-scale plants are difficult to achieve.
The invention has the patent numbers: CN 104022720 a application publication date: 9/3 in 2014. The patent name is photovoltaic roof hidden frame mounting structure. The invention discloses a photovoltaic roof hidden frame mounting structure, which aims to solve the technical problem of simplifying the structure of a photovoltaic roof and comprises cross beams arranged on the roof, wherein longitudinal beams are arranged between the cross beams, the cross beams are connected with the longitudinal beams to form keels with a latticed structure, photovoltaic modules for covering grids are respectively arranged above the grids of the keels, and the photovoltaic modules are connected and fixed with the cross beams through fasteners; the fastener comprises C-shaped aluminum alloy strips and a pressing block, wherein the C-shaped aluminum alloy strips are arranged below the photovoltaic modules and correspond to the cross beams in position, the pressing block is fastened on the cross beams through self-supply bolts, the C-shaped aluminum alloy strips are bonded with the photovoltaic modules through structural glue, and weather-resistant glue is filled in a gap between every two adjacent photovoltaic modules.
The hidden frame mounting structure of the photovoltaic roof has the following problems: 1. the supporting cross beam and the longitudinal beam at the lower part of the structure need to be manufactured on site, the manufacturing error is large and is not easy to control, and the requirement of the installation precision is difficult to achieve. 2. The heat preservation function is not provided, and the application scene is limited. 3. Only one layer is waterproof, and the leaked drainage structure without diversion is realized.
In order to solve the above problems, the patent that the applicant has applied discloses a photovoltaic integrated power generation module and a roof mounting structure unit for a roof, the photovoltaic integrated power generation module can be produced in a factory standard manner, can realize the integrated large-area mounting of photovoltaic buildings, and can be directly applied to roofs of large-scale buildings such as sports stadiums and factory buildings. In addition, the roof mounting structure unit constructed by the photovoltaic integrated power generation module enables the mounting process to be modularized, the hoisting and mounting are directly selected, the mounting time is saved, the mounting precision is improved, the field mounting is directly carried out, and the problem of secondary mounting of a building roof photovoltaic system is solved.
However, the photovoltaic integrated power generation module has a large area and a fixed structure, and is more suitable for the roofs of the aforementioned large-scale buildings such as sports stadiums and plants which have no requirements on the building style and have a large building area.
The present invention has been made to solve the above problems.
Disclosure of Invention
The invention can perfectly combine the photovoltaic power station and the building together to realize the integration of the photovoltaic building. Let photovoltaic module become a part of building to possess the same function of roofing tile, and also had photovoltaic power plant's the electricity generation function simultaneously concurrently. The invention can be used for making products of different styles, such as Dai type buildings and Chinese type buildings, according to the buildings of different styles. The roof tile can be paved on the roof surface of a building instead of tiles, and compared with the traditional roof photovoltaic power station, the roof tile can save the installation time and the supporting materials, and greatly reduce the cost of installing the photovoltaic power station on the roof.
The photovoltaic roof can be used for manufacturing products of different styles, such as Dai-nationality buildings and Chinese buildings, and has the power generation function of the photovoltaic power station, compared with the traditional roof photovoltaic power station, the photovoltaic roof can save the installation time and supporting materials, and the cost of installing the photovoltaic power station on the roof is greatly reduced.
The invention is realized by the following technical scheme:
the present invention provides in a first aspect a photovoltaic roof built up of thin-film photovoltaic tiles, comprising a roof body 2 and a plurality of thin-film photovoltaic tiles 1 located on said roof body 2,
film photovoltaic tile 1 is square tile, and it includes in proper order: the solar photovoltaic power generation device comprises front tempered glass 11, an adhesive film 12, a sealing strip layer 13, a thin film photovoltaic power generation layer 14 and back plate glass 15;
one side of the film photovoltaic tile is provided with a water guide purline 16;
a rain-proof rubber strip 17 is arranged at one side edge adjacent to the water guide purline 16, and a mounting hanging beam 18 is arranged at the outer side of the rain-proof rubber strip 17;
a mounting hole 181 is formed below the mounting hanging beam 18;
the roof main body 2 is provided with a mounting nail 21 corresponding to the mounting hole 181, and the mounting nail 21 is matched and fixedly connected with the mounting hole 181 so as to mount the thin-film photovoltaic tile 1 on the roof main body 2.
Preferably, the mounting holes 181 are uniformly distributed below the mounting hanging beam 18, and correspond to the positions and the number of the mounting nails 21 on the roof.
Preferably, the water guiding purlin 16 includes two parts, one part is a square mounting part 161 located below the backplane glass 14, the other part is a circular arc water guiding part 162 extending outwards, and the water guiding part 162 is further provided with a water guiding platform 163.
Preferably, two adjacent thin-film photovoltaic tiles 1 are overlapped through the water guide portion 162, the opposite-side back plate glass 14 of one of the thin-film photovoltaic tiles, which is provided with the water guide purlin 16, is overlapped on the water guide portion 162 of the other adjacent thin-film photovoltaic tile, which extends outwards, and a water guide groove 164 is formed between the back plate glass 14 and a water guide platform 163 on the water guide portion 162.
Preferably, a water-guiding purlin 16 is located on the left side of the thin film photovoltaic tile.
In a second aspect, the present invention provides a method for building photovoltaic roofs according to the first aspect of the present invention, comprising the following steps:
the thin film photovoltaic tile is sequentially installed from the right to the left and from the bottom to the top on the roof main body 2 according to the installation principle;
the specific installation steps are as follows:
1) firstly, confirming the position of a first film photovoltaic tile, and installing the first film photovoltaic tile on the lower right corner of the roof main body 2 according to the principle of from right to left and from bottom to top;
2) the installation holes 181 below the installation hanging beams 18 of the first piece of thin-film photovoltaic tile are matched and fixed with the installation nails 21 at the corresponding positions on the roof main body 2, so that the first piece of thin-film photovoltaic tile 1 is installed on the roof main body 2;
3) taking a second thin-film photovoltaic tile, placing the second thin-film photovoltaic tile on the left side of the first thin-film photovoltaic tile, wherein the right side of the second thin-film photovoltaic tile is lapped on the water guide part 162 of the first thin-film photovoltaic tile 1, and installing holes 181 below the second thin-film photovoltaic tile and the corresponding installing nails 21 on the roof main body 2 so as to install the second thin-film photovoltaic tile 1 on the roof main body 2; a water guide groove 164 is formed between the back plate glass 14 of the second sheet of the thin film photovoltaic tile 1 and the water guide platform 163 on the water guide part 162 of the first sheet of the thin film photovoltaic tile 1.
Irregular parts of the film photovoltaic tiles can be filled with traditional tiles to be inserted and decorated among the film photovoltaic tiles at the first level, and the traditional tiles can be matched with the power generation tiles.
The mounting nail is mainly a screw or a screw, the screw mounting is mainly used for wood purlins, and the screw mounting is mainly used for U-shaped aluminum alloy section bars and U-shaped steel section bars.
The thin film photovoltaic tile is sequentially installed from the right to the left and from the bottom to the top on the roof main body 2 according to the installation principle; the lap joint pattern conforms to a conventional tile lap joint pattern. According to the film photovoltaic tile, the water guide purlines are arranged on the left sides of the tiles, so that the film photovoltaic tiles on the left sides are lapped on the water guide purlines of the film photovoltaic tiles on the right sides, rainwater of the film photovoltaic tiles on the left sides flows to the film photovoltaic tiles on the next level along the water guide purlines, and the purpose of rain prevention and water prevention is achieved by guiding the film photovoltaic tiles on the first level until the rainwater flows out of a roof.
The preparation method of the thin film photovoltaic tile comprises the following steps:
1) selecting back plate glass 15 with the surface coated with a thin film photovoltaic chip, wherein the thin film photovoltaic chip is a thin film photovoltaic power generation layer 14, and cutting the back plate glass into the required design size of a thin film photovoltaic tile;
2) taking the cut back plate glass 15 plated with the thin film photovoltaic chip, carrying out primary edge cleaning on the periphery of the thin film photovoltaic chip by using a laser edge cleaner, cleaning a power generation film layer and a back electrode conducting layer molybdenum layer on the periphery of the thin film photovoltaic chip, wherein the primary edge cleaning area is used for edge sealing, butyl rubber is used for edge sealing, and the width of the edge sealing is 8-10 mm;
3) secondly, performing secondary edge cleaning on the thin film photovoltaic chip subjected to the primary edge cleaning, performing secondary edge cleaning on the edge of the thin film photovoltaic chip with the primary edge cleaning area, only cleaning a power generation film layer at the time, and leaving a back electrode conducting layer molybdenum layer, wherein the back electrode conducting layer molybdenum layer on the secondary edge cleaning area is used for pasting a bus bar in a subsequent process;
4) attaching a bus bar on the molybdenum layer of the back electrode conducting layer on the secondary edge cleaning area, wherein the bus bar is used for leading out electric energy generated by the thin film photovoltaic chip;
5) butyl rubber is arranged in the first edge cleaning area for waterproof sealing, and the butyl rubber forms a sealing strip layer 13;
6) laminating, namely aligning a front tempered glass 11 and a back glass 15 with a sealing strip layer 13 and a thin film photovoltaic power generation layer 14, and adding an adhesive film 12 into the middle of the front tempered glass and the back glass, and sending the front tempered glass and the back glass into the next laminating process;
7) mounting a junction box after lamination to form a film photovoltaic tile main body, and punching two bus bar leading-out holes in advance at the designed junction box position;
8) sequentially using weather-proof structural adhesive, and installing a rainwater-proof adhesive tape 17, a hanging beam 18 and a water guide purline 16 on the side edge of the main body of the film photovoltaic tile according to the design;
9) and (5) standing for more than 24 hours until the weather-resistant structural adhesive is solidified to obtain the film photovoltaic tile.
Preferably, in step 2, the width of the first edge deletion area around the thin film photovoltaic chip is 8-10mm, and preferably 9 mm.
Preferably, in step 3, the width of the peripheral second edge deletion area of the thin film photovoltaic chip is 5-8mm, preferably 5 mm, and the width is determined according to the width of the bus bar.
In the actual production process, the prepared film photovoltaic tile needs to be subjected to a classifying and packaging step after electrical property detection is qualified.
The thin film photovoltaic chip used in the invention is directly plated on the back plate glass 15 at the beginning, and the shape of the thin film photovoltaic chip is processed and packaged together with the back plate glass 15 and other elements. It is of course also possible to choose the backsheet glass 15 and then first coat its surface with the thin-film photovoltaic chips.
The different purposes of twice edge cleaning are that the first edge cleaning is to clean the power generation film layer and the back electrode conducting layer molybdenum layer and is used for edge sealing; and the secondary edge cleaning is to further clean the power generation film layer on the basis of the edge of the primary edge cleaning, and the back electrode conducting layer molybdenum layer is left to be used for adhering the bus bar for conducting. Because the plating power generation layer is irregular on the upper edge part of the backboard glass, and the edge part needs to be removed by 8-10mm because the edge sealing part can not be provided with the power generation layer. The secondary edge cleaning is to clean the power generation layer and the molybdenum layer of the back electrode, and the secondary edge cleaning is to clean the power generation film layer on the most marginal photovoltaic power generation unit (the power generation coating can be divided into a plurality of single power generation units according to the power generation voltage and the electrical property, the power generation units are connected in series to obtain higher voltage) after one layer of edge cleaning, so as to leave the molybdenum layer, (the secondary edge cleaning only cleans the power generation layer, and the molybdenum layer is reserved for conducting electricity).
Compared with the prior art, the invention has the following beneficial effects:
1. the photovoltaic roof can be used for manufacturing products of different styles, such as Dai-nationality buildings and Chinese buildings, and has the power generation function of the photovoltaic power station, compared with the traditional roof photovoltaic power station, the photovoltaic roof can save the installation time and supporting materials, and the cost of installing the photovoltaic power station on the roof is greatly reduced.
2. The invention can perfectly combine the photovoltaic power station and the building together to realize the integration of the photovoltaic building. Let photovoltaic module become a part of building to possess the same function of roofing tile, and also had photovoltaic power plant's the electricity generation function simultaneously concurrently. The invention can replace the traditional roofing material, and provides the function of generating electricity and replacing tiles by using the thin film photovoltaic chip as a core power generation unit.
3. The film photovoltaic tile is provided with the water guide purlines 16, the water guide grooves 164 can be formed at the lap joints after the two tiles are lapped, even if rainwater permeates into a roof from the lap joint gaps of the two tiles, the rainwater can flow out along with the water guide grooves 164 and cannot leak into a house, and meanwhile, each tile is also provided with the rainwater-proof adhesive tape 17, so that the waterproof effect is achieved by the two tiles together. The invention provides a photovoltaic component-photovoltaic plane tile which can be used for preventing water and rain on the surface of a building roof.
4. The film photovoltaic tile disclosed by the invention is small in size, and products of different styles, such as Dai type buildings and Chinese type buildings, can be made according to the buildings of different styles. In addition, the photovoltaic flat tile can be made to have different colors to match the architectural design effect by replacing the adhesive films with different colors. Furthermore, the invention can be used for manufacturing different patterns on the front plate ultra-white toughened glass by means of sanding or sand blasting and the like to match different architectural styles. That is, the invention can be applied to the surfaces of the roofs of buildings of different styles by replacing the adhesive films with different colors and the front plate of the super-white toughened glass.
5. The solar energy roof tile can replace tiles to be paved on the surface of a building roof, and if a photovoltaic power station is built on the roof, the roof is required to be firstly made, and then a supporting structure for installing a solar panel is erected on the roof. The tiles are directly arranged on the roof supporting structure, so that the original roof material, namely the tiles, and the original solar panel supporting structure are saved. Therefore, compared with the traditional roof photovoltaic power station, the installation time and the supporting materials can be saved, and the cost of the photovoltaic power station installed on the roof is greatly reduced.
6. The invention can realize the installation in different modes by replacing the installation hanging beam. The roof mounting tile of the invention can be changed in structural shape, has various forms, and can be used for different roof support structures.
7. The front plate toughened glass 11 is super-white transparent toughened glass plated with an anti-reflection film, and the back plate glass is also transparent. The antireflection film coated on the front tempered glass 11 is used for absorbing more sunlight irradiated on the glass and not reflecting the sunlight back, and the ultra-white transparent glass is used for transmitting more sunlight into the power generation layer to generate more electricity. In addition, because the front plate toughened glass 11 and the back plate glass 15 are transparent, the photovoltaic flat tile can show different colors to match the architectural design effect by replacing the adhesive films with different colors.
Drawings
FIG. 1 is a schematic view of a thin film photovoltaic tile structure of the present invention;
FIG. 2 is a schematic view of a thin film photovoltaic tile structure of the present invention;
FIG. 3 is a schematic view of a thin film photovoltaic tile installation configuration of the present invention;
FIG. 4 is a schematic view of a thin film photovoltaic tile installation of the present invention;
FIG. 5 is a schematic view of a thin film photovoltaic tile structure of the present invention;
the names of the reference symbols in the description of the drawings are: the solar photovoltaic roof comprises 1-thin-film photovoltaic tiles, 2-roof main bodies, 11-front-plate toughened glass, 12-adhesive films, 13-sealing strip layers, 14-thin-film photovoltaic power generation layers, 15-back-plate glass, 16-water guide purlines, 17-rain-proof adhesive tapes, 18-mounting hanging beams, 21-mounting nails, 161-mounting parts, 162-water guide parts, 163-water guide platforms, 164-water guide grooves and 181-mounting holes.
Detailed Description
It will be appreciated by those skilled in the art that the following examples are illustrative of the invention only and should not be taken as limiting the scope of the invention. The examples do not specify particular techniques or conditions, and are performed according to the techniques or conditions described in the literature in the art or according to the product specifications. The materials or equipment used are not indicated by manufacturers, and all are conventional products available by purchase.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Examples
As shown in fig. 1-5, a first aspect of the present invention provides a photovoltaic roof built of thin-film photovoltaic tiles, comprising a roof body 2 and a plurality of thin-film photovoltaic tiles 1 located on said roof body 2,
film photovoltaic tile 1 is square tile, and it includes in proper order: the solar photovoltaic power generation device comprises front tempered glass 11, an adhesive film 12, a sealing strip layer 13, a thin film photovoltaic power generation layer 14 and back plate glass 15;
one side of the film photovoltaic tile is provided with a water guide purline 16;
a rain-proof rubber strip 17 is arranged at one side edge adjacent to the water guide purline 16, and a mounting hanging beam 18 is arranged at the outer side of the rain-proof rubber strip 17;
a mounting hole 181 is formed below the mounting hanging beam 18;
the roof main body 2 is provided with a mounting nail 21 corresponding to the mounting hole 181, and the mounting nail 21 is matched and fixedly connected with the mounting hole 181 so as to mount the thin-film photovoltaic tile 1 on the roof main body 2.
Preferably, the mounting holes 181 are uniformly distributed below the mounting hanging beam 18, and correspond to the positions and the number of the mounting nails 21 on the roof.
Preferably, the water guiding purlin 16 includes two parts, one part is a square mounting part 161 located below the backplane glass 14, the other part is a circular arc water guiding part 162 extending outwards, and the water guiding part 162 is further provided with a water guiding platform 163.
Preferably, two adjacent thin-film photovoltaic tiles 1 are overlapped through the water guide portion 162, the opposite-side back plate glass 14 of one of the thin-film photovoltaic tiles, which is provided with the water guide purlin 16, is overlapped on the water guide portion 162 of the other adjacent thin-film photovoltaic tile, which extends outwards, and a water guide groove 164 is formed between the back plate glass 14 and a water guide platform 163 on the water guide portion 162.
Preferably, a water-guiding purlin 16 is located on the left side of the thin film photovoltaic tile.
In a second aspect, the present invention provides a method for building photovoltaic roofs according to the first aspect of the present invention, comprising the following steps:
the thin film photovoltaic tile is sequentially installed from the right to the left and from the bottom to the top on the roof main body 2 according to the installation principle;
the specific installation steps are as follows:
1) firstly, confirming the position of a first film photovoltaic tile, and installing the first film photovoltaic tile on the lower right corner of the roof main body 2 according to the principle of from right to left and from bottom to top;
2) the installation holes 181 below the installation hanging beams 18 of the first piece of thin-film photovoltaic tile are matched and fixed with the installation nails 21 at the corresponding positions on the roof main body 2, so that the first piece of thin-film photovoltaic tile 1 is installed on the roof main body 2;
3) taking a second thin-film photovoltaic tile, placing the second thin-film photovoltaic tile on the left side of the first thin-film photovoltaic tile, wherein the right side of the second thin-film photovoltaic tile is lapped on the water guide part 162 of the first thin-film photovoltaic tile 1, and installing holes 181 below the second thin-film photovoltaic tile and the corresponding installing nails 21 on the roof main body 2 so as to install the second thin-film photovoltaic tile 1 on the roof main body 2; a water guide groove 164 is formed between the back plate glass 14 of the second sheet of the thin film photovoltaic tile 1 and the water guide platform 163 on the water guide part 162 of the first sheet of the thin film photovoltaic tile 1.
Irregular parts of the film photovoltaic tiles can be filled with traditional tiles to be inserted and decorated among the film photovoltaic tiles at the first level, and the traditional tiles can be matched with the power generation tiles.
The mounting nail is mainly a screw or a screw, the screw mounting is mainly used for wood purlins, and the screw mounting is mainly used for U-shaped aluminum alloy section bars and U-shaped steel section bars.
The thin film photovoltaic tile is sequentially installed from the right to the left and from the bottom to the top on the roof main body 2 according to the installation principle; the lap joint pattern conforms to a conventional tile lap joint pattern. According to the film photovoltaic tile, the water guide purlines are arranged on the left sides of the tiles, so that the film photovoltaic tiles on the left sides are lapped on the water guide purlines of the film photovoltaic tiles on the right sides, rainwater of the film photovoltaic tiles on the left sides flows to the film photovoltaic tiles on the next level along the water guide purlines, and the purpose of rain prevention and water prevention is achieved by guiding the film photovoltaic tiles on the first level until the rainwater flows out of a roof.
The preparation method of the thin film photovoltaic tile comprises the following steps:
1) selecting back plate glass 15 with the surface coated with a thin film photovoltaic chip, wherein the thin film photovoltaic chip is a thin film photovoltaic power generation layer 14, and cutting the back plate glass into the required design size of a thin film photovoltaic tile;
2) taking the cut back plate glass 15 plated with the thin film photovoltaic chip, carrying out primary edge cleaning on the periphery of the thin film photovoltaic chip by using a laser edge cleaner, cleaning the power generation film layer and the back electrode conducting layer molybdenum layer on the periphery of the thin film photovoltaic chip, and using a primary edge cleaning area for edge sealing;
3) secondly, performing secondary edge cleaning on the thin film photovoltaic chip subjected to the primary edge cleaning, performing secondary edge cleaning on the edge of the thin film photovoltaic chip with the primary edge cleaning area, only cleaning a power generation film layer at the time, and leaving a back electrode conducting layer molybdenum layer, wherein the back electrode conducting layer molybdenum layer on the secondary edge cleaning area is used for pasting a bus bar in a subsequent process;
4) attaching a bus bar on the molybdenum layer of the back electrode conducting layer on the secondary edge cleaning area, wherein the bus bar is used for leading out electric energy generated by the thin film photovoltaic chip;
5) butyl rubber is arranged in the first edge cleaning area for waterproof sealing, and the butyl rubber forms a sealing strip layer 13;
6) laminating, namely aligning a front tempered glass 11 and a back glass 15 with a sealing strip layer 13 and a thin film photovoltaic power generation layer 14, and adding an adhesive film 12 into the middle of the front tempered glass and the back glass, and sending the front tempered glass and the back glass into the next laminating process;
7) mounting a junction box after lamination to form a film photovoltaic tile main body, and punching two bus bar leading-out holes in advance at the designed junction box position;
8) sequentially using weather-proof structural adhesive, and installing a rainwater-proof adhesive tape 17, a hanging beam 18 and a water guide purline 16 on the side edge of the main body of the film photovoltaic tile according to the design;
9) and (5) standing for more than 24 hours until the weather-resistant structural adhesive is solidified to obtain the film photovoltaic tile.
In the step 2, the width of the first edge cleaning area around the thin film photovoltaic chip is 9 mm.
In the step 3, the width of the secondary edge cleaning area around the thin film photovoltaic chip is 5 mm.
Claims (6)
1. A photovoltaic roof built up of thin-film photovoltaic tiles, characterized in that it comprises a roof body (2) and a plurality of thin-film photovoltaic tiles (1) located on the roof body (2),
film photovoltaic tile (1) is square tile, and it includes in proper order: the solar photovoltaic power generation device comprises front plate toughened glass (11), an adhesive film (12), a sealing strip layer (13), a thin film photovoltaic power generation layer (14) and back plate glass (15);
one side of the thin film photovoltaic tile is provided with a water guide purlin (16);
a rain-proof rubber strip (17) is arranged at one side edge adjacent to the water guide purline (16), and a mounting hanging beam (18) is arranged at the outer side of the rain-proof rubber strip (17);
a mounting hole (181) is formed below the mounting hanging beam (18);
the roof main body (2) is provided with mounting nails (21) corresponding to the mounting holes (181), and the mounting nails (21) are matched and fixedly connected with the mounting holes (181) so as to mount the film photovoltaic tile (1) on the roof main body (2).
2. The photovoltaic roof built of thin-film photovoltaic tiles according to claim 1, wherein the mounting holes (181) are multiple, evenly distributed under the mounting hanger beams (18) and corresponding to the positions and number of mounting nails (21) on the roof.
3. The photovoltaic roof built from thin-film photovoltaic tiles according to claim 1, wherein the water guiding purline (16) comprises two parts, one part is a square mounting part (161) located below the back plate glass (14), the other part is a circular arc-shaped water guiding part (162) extending outwards, and a water guiding platform (163) is further arranged on the water guiding part (162).
4. The photovoltaic roof built by the thin-film photovoltaic tiles according to claim 1, wherein two adjacent thin-film photovoltaic tiles (1) are overlapped through the water guide parts (162), the opposite-side back plate glass (14) of one thin-film photovoltaic tile provided with the water guide purlin (16) is overlapped on the water guide part (162) extending outwards of the other adjacent thin-film photovoltaic tile, and a water guide groove (164) is formed between the back plate glass (14) and the water guide platform (163) on the water guide part (162).
5. The photovoltaic roof built from thin-film photovoltaic tiles according to claim 1, characterized in that water-guiding purlins (16) are located on the left side of the thin-film photovoltaic tiles.
6. A method of building a photovoltaic roof according to any one of claims 1 to 4, characterised in that it comprises the following steps:
the thin-film photovoltaic tiles are sequentially installed from right to left and from bottom to top on the roof main body (2) in principle;
the specific installation steps are as follows:
1) firstly, confirming the position of a first film photovoltaic tile, and installing the first film photovoltaic tile on the lower right corner of the roof main body (2) according to the principle of from right to left and from bottom to top;
2) the installation holes (181) below the first film photovoltaic tile installation hanging beam (18) are matched and fixed with the installation nails (21) at the corresponding positions on the roof main body (2) so as to install the first film photovoltaic tile (1) on the roof main body (2);
3) taking a second thin-film photovoltaic tile, placing the second thin-film photovoltaic tile on the left side of the first thin-film photovoltaic tile, wherein the right side of the second thin-film photovoltaic tile is lapped on a water guide part (162) of the first thin-film photovoltaic tile (1), and installing holes (181) below the second thin-film photovoltaic tile and the installing nails (21) at corresponding positions on the roof main body (2) so as to install the second thin-film photovoltaic tile (1) on the roof main body (2); a water guide groove (164) is formed between the back plate glass (14) of the second piece of the film photovoltaic tile (1) and the water guide platform (163) on the water guide part (162) of the first piece of the film photovoltaic tile (1).
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| CN202111194104.7A CN113898127A (en) | 2021-10-13 | 2021-10-13 | Photovoltaic roof built by thin-film photovoltaic tiles and lap joint building method thereof |
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| CN202111194104.7A CN113898127A (en) | 2021-10-13 | 2021-10-13 | Photovoltaic roof built by thin-film photovoltaic tiles and lap joint building method thereof |
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