CN215990642U - Back plate, roof photovoltaic module and photovoltaic building - Google Patents
Back plate, roof photovoltaic module and photovoltaic building Download PDFInfo
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- CN215990642U CN215990642U CN202121738799.6U CN202121738799U CN215990642U CN 215990642 U CN215990642 U CN 215990642U CN 202121738799 U CN202121738799 U CN 202121738799U CN 215990642 U CN215990642 U CN 215990642U
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Images
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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
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
Abstract
The back plate comprises a back plate body; along a first direction, the back plate body comprises a first end and a second end which are arranged in a deviating way; the first end is provided with a first inserting part and a second inserting part which are arranged at a preset included angle; the second end is correspondingly provided with a first inserting groove and a second inserting groove; under the condition that two adjacent back plates are connected, the first inserting groove is matched with the first inserting part, the second inserting groove is matched with the second inserting part, the first inserting part of one back plate is inserted into the first inserting groove of the other back plate, and the second inserting part of one back plate is inserted into the second inserting groove of the other back plate. The first inserting part and the second inserting part are stably connected along two directions of the preset included angle. From this, realized the firm connection between a plurality of backplates, strengthened the reliability of connecting, and need not the machine operation, need not reserve the machine work area, guaranteed the power generation unit area, do not influence the power generation rate, compromise the connection steadiness and the product power generation rate of backplate simultaneously.
Description
Technical Field
The utility model relates to the technical field of solar photovoltaic, in particular to a back plate, a roof photovoltaic module and a photovoltaic building.
Background
Solar energy has the advantages of no pollution, no regional limitation, inexhaustibility and the like, and the solar photovoltaic power generation technology becomes a main direction for developing and utilizing new energy. The Photovoltaic Integrated Photovoltaic (BIPV) is a novel Photovoltaic application mode combining a Photovoltaic module and a Building, and a Photovoltaic material is used for partially replacing a traditional Building material and applied to Building outer layers such as a roof, a glass skylight and a wall surface, so that the Building material can be used as a Building material and can also be used for power generation, and the Building Integrated Photovoltaic (BIPV) has a wide market prospect.
In the prior art, the commercial BIPV product generally combines a photovoltaic module product with a building unit by adopting a mechanical fixing or adhesive bonding mode; or a plurality of back plate components are arranged, and the adjacent back plate components are connected through back plate locking edges, so that the back plate components form a whole body, and the combination with a building is facilitated.
In the process of studying the prior art, the inventor finds that the steel plate is easy to fall off if mechanical fixation is adopted; if the glue is adopted for bonding, the bonding is limited by environmental conditions and the consistency of the gluing performance cannot be ensured. If manual edge locking is performed on the back plates, the connection stability between the back plates cannot be ensured; if machine lockstitching is carried out on the back plate, a machine working area needs to be reserved, the area of a power generation unit in the whole product is seriously reduced, and the power generation rate is influenced. Therefore, the connection stability and the product power generation rate of the back plate cannot be simultaneously considered.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention has been developed to provide a back sheet, a roofing photovoltaic module and a photovoltaic building that overcome or at least partially address the above-mentioned problems.
In order to solve the above problem, in a first aspect, the present invention discloses a back plate, comprising: a back plate body; along a first direction, the backboard body comprises a first end and a second end which are arranged in a deviating way;
the first end is provided with a first inserting part and a second inserting part which are arranged at a preset included angle;
the second end is correspondingly provided with a first inserting groove and a second inserting groove;
under the condition that two adjacent back plates are connected, the first inserting groove is matched with the first inserting part, and the second inserting groove is matched with the second inserting part; the first inserting part of one of the back plates is inserted into the first inserting groove of the other back plate, and the second inserting part of one of the back plates is inserted into the second inserting groove of the other back plate.
Optionally, the plugging direction of the first plugging part is parallel to the first direction;
the plugging direction of the second plugging part is vertical to the first direction.
Optionally, a plurality of first through holes are formed in the side wall of the second insertion groove, and a plurality of second through holes are formed in the second insertion part;
under the condition that the second inserting part is inserted into the second inserting groove, the second through hole corresponds to the first through hole in arrangement position.
Optionally, the size of the first insertion part is smaller than that of the first insertion groove, and a first gap is formed between the first insertion part and the first insertion groove when the first insertion part is inserted into the first insertion groove;
the size of the second plugging part is smaller than that of the second plugging groove, and a second gap is formed between the second plugging part and the second plugging groove under the condition that the second plugging part is plugged into the second plugging groove.
Optionally, the back plate comprises a third end and a fourth end arranged away from each other along a second direction, the second direction being perpendicular to the first direction; wherein,
the third end is provided with a first lap joint part, the fourth end is provided with a second lap joint part, and the first lap joint part is matched with the second lap joint part;
under the condition that two adjacent back plates are connected, the first lap joint part of one back plate is lapped with the second lap joint part of the other back plate.
Optionally, the first bridging part is provided with a first microstructure, the second bridging part is provided with a second microstructure, and the first microstructure is matched with the second microstructure;
the first microstructure and the second microstructure are embedded with each other in a state where the first lap joint is lapped on the second lap joint.
Optionally, the back plate body comprises a substrate layer, an insulating layer and an elastic layer which are sequentially arranged; wherein,
the elastic layer is made of polyolefin elastomer.
In a second aspect, the present invention also discloses a roofing photovoltaic module, comprising: the power generation device comprises a packaging material layer, a power generation unit, a front plate material layer and the back plate;
the packaging material layer, the power generation unit and the front plate material layer are sequentially connected to the back plate.
Optionally, the back plate body comprises a substrate layer, an insulating layer and an elastic layer which are sequentially arranged; wherein the elastic layer is made of polyolefin elastomer; the elastic layer is connected with the packaging material layer.
In a third aspect, the present invention also discloses a photovoltaic building, comprising: the roofing photovoltaic module.
The utility model has the following advantages: the back plate comprises a back plate body; along a first direction, the backboard body comprises a first end and a second end which are arranged in a deviating way; the first end is provided with a first inserting part and a second inserting part which are arranged at a preset included angle; the second end is correspondingly provided with a first inserting groove and a second inserting groove, the first inserting groove is matched with the first inserting part, and the second inserting groove is matched with the second inserting part; under the condition that two adjacent back plates are connected, the first inserting part of one back plate is inserted into the first inserting groove of the other back plate, and the second inserting part of one back plate is inserted into the second inserting groove of the other back plate. Because the first inserting part and the second inserting part are arranged along the preset included angle, under the condition that two adjacent back plates are connected, the first inserting part of one back plate is inserted into the first inserting groove of the other back plate, and meanwhile, the second inserting part of one back plate is inserted into the second inserting groove of the other back plate, so that the first inserting part and the second inserting part are stably connected in two directions along the preset included angle. From this, realized the firm connection between a plurality of backplates, strengthened the reliability of connecting to need not the machine operation, need not reserve the machine work area, guaranteed the generating unit area in the whole product, do not influence the power generation rate, compromise the connection steadiness and the product power generation rate of backplate simultaneously.
Drawings
FIG. 1 is a schematic structural view of a back plate of the present invention;
FIG. 2 is a schematic cross-sectional view of a backing plate of the present invention taken along a first direction;
FIG. 3 is a schematic view of a connection of a back plate of the present invention along a first direction;
FIG. 4 is a schematic view of a connection of a back plate of the present invention along a second direction;
FIG. 5 is a schematic view of a layered structure of a back sheet of the present invention;
FIG. 6 is an enlarged view of a portion of a back plate according to the present invention;
FIG. 7 is an enlarged view of a portion of another back plate of the present invention;
reference numerals: 10-a back plate body; 11-a first end; 12-a second end; 111-a first mating part; 112-a second mating part; 121-a first plug groove; 122-a second mating groove; 1221-a first via; 1211 — a second through hole; 13-a third end; 14-a fourth end; 131-a first lap joint; 141-a second lap joint; 20-a substrate layer; 30-an insulating layer; 40-an elastic layer;
A-A: a first direction; B-B: a second direction.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Referring to fig. 1 to 5, a structural schematic diagram and a connection schematic diagram of a back plate of the present invention are shown, the back plate includes a back plate body 10; along a first direction a-a, the backpanel body 10 comprises a first end 11 and a second end 12 arranged away from each other; the first end 11 is provided with a first inserting part 111 and a second inserting part 112 which are arranged at a preset included angle; the second end 12 is correspondingly provided with a first inserting groove 121 and a second inserting groove 122, the first inserting groove 121 is matched with the first inserting part 111, and the second inserting groove 122 is matched with the second inserting part 112; when two adjacent back plates are connected, the first mating part 111 of one of the back plates is inserted into the first mating groove 121 of the other of the back plates, and the second mating part 112 of the one of the back plates is inserted into the second mating groove 122 of the other of the back plates.
In the embodiment of the present invention, since the first inserting-connecting part 111 and the second inserting-connecting part 112 are arranged along the preset included angle, when two adjacent back plates are connected, the first inserting-connecting part 111 of one of the back plates is inserted into the first inserting-connecting groove 121 of the other back plate, and meanwhile, the second inserting-connecting part 112 of one of the back plates is inserted into the second inserting-connecting groove 122 of the other back plate, so that the first inserting-connecting part 111 and the second inserting-connecting part 112 are both stably connected in two directions along the preset included angle. From this, realized the firm connection between a plurality of backplates, strengthened the reliability of connecting to need not the machine operation, need not reserve the machine work area, guaranteed the generating unit area in the whole product, do not influence the power generation rate, compromise the connection steadiness and the product power generation rate of backplate simultaneously.
Specifically, the first inserting-connecting groove 121 is adapted to the first inserting-connecting part 111, that is, the shape and structure of the first inserting-connecting groove 121 are the same as those of the first inserting-connecting part 111, and the size of the first inserting-connecting groove 121 is similar to that of the first inserting-connecting part 111, so that when two adjacent back plates are connected, the first inserting-connecting part 111 can be inserted into the first inserting-connecting groove 121, and the two adjacent back plates are matched with each other. Similarly, the second inserting-connecting groove 122 is adapted to the second inserting-connecting part 112 means that the shape and structure of the second inserting-connecting groove 122 are the same as those of the second inserting-connecting part 112, the size of the second inserting-connecting groove 122 is similar to that of the second inserting-connecting part 112, and when two adjacent back plates are connected, the second inserting-connecting part 112 can be inserted into the second inserting-connecting groove 122, and the two adjacent back plates are matched with each other.
In the embodiment of the present invention, the first insertion-connection part 111 and the second insertion-connection part 112 are disposed at a predetermined included angle, and the predetermined included angle may be 0 ° to 180 °. Correspondingly, the first inserting-connecting groove 121 is matched with the first inserting-connecting part 111, the second inserting-connecting groove 122 is matched with the second inserting-connecting part 112, and a preset included angle is formed between the first inserting-connecting groove 121 and the second inserting-connecting groove 122 and can be 0-180 degrees.
Optionally, the plugging direction of the first plugging portion 111 is parallel to the first direction a-a; the plugging direction of the second plugging portion 112 is perpendicular to the first direction a-a. The plugging direction of the first plugging part 111 is parallel to the first direction A-A, and under the condition that two adjacent backplates are connected, the first plugging part 111 is inserted into the first plugging groove 121, so that the two adjacent backplates are connected in the horizontal direction; meanwhile, the second inserting part 112 is inserted into the second inserting groove 122, so that the connection between two adjacent back plates is realized in the vertical direction, the first inserting part 111 and the second inserting part 112 are 90 degrees, and the first inserting groove 121 and the second inserting groove 122 are 90 degrees. Therefore, the two adjacent back plates are stably connected in the horizontal direction and the vertical direction, and the connection reliability is enhanced.
Optionally, a plurality of first through holes 1221 are disposed on a side wall of the second inserting-connecting groove 122, and a plurality of second through holes 1121 are disposed on the second inserting-connecting portion 112; when the second mating member 112 is inserted into the second mating groove 122, the second through hole 1121 corresponds to the position of the first through hole 1221. Through set up first through-hole 1221 at the lateral wall of second inserting groove 122, set up second through-hole 1121 at second inserting part 112, second through-hole 1121 corresponds with first through-hole 1221's the position of setting, and under the condition that second inserting part 112 inserts second inserting groove 122, first through-hole 1221 link up with second through-hole 1121 mutually, can give off the heat that backplate work produced, reduce the operating temperature of backplate, promote backplate subassembly generating efficiency.
Optionally, the size of the first insertion-connection part 111 is smaller than that of the first insertion-connection groove 121, and when the first insertion-connection part 111 is inserted into the first insertion-connection groove 121, a first gap is formed between the first insertion-connection part 111 and the first insertion-connection groove 121; the second plug part 112 is smaller than the second plug groove 122, and a second gap is formed between the second plug part 112 and the second plug groove 122 when the second plug part 112 is inserted into the second plug groove 122.
In the embodiment of the present invention, the size of the first insertion-connection part 111 is smaller than that of the first insertion-connection groove 121, and a gap is formed between the first insertion-connection part 111 and the first insertion-connection groove 121, so that the first insertion-connection part 111 can be inserted into the first insertion-connection groove 121; the second plug part 112 is smaller than the second plug groove 122, and a gap is formed between the second plug part 112 and the second plug groove 122, so that the second plug part 112 can be inserted into the second plug groove 122.
Specifically, along the direction perpendicular to the first direction a-a, the thickness of the first insertion-connection part 111 may be 1mm to 5mm smaller than the width of the bottom of the first insertion-connection groove 121, and 3mm may be selected as the optimum phase difference value; similarly, the thickness of the second mating portion 112 along the first direction a-a may be 1mm to 5mm smaller than the width of the bottom of the second mating groove 122, and 3mm may be selected as the optimum phase difference value.
The plugging depths of the first plugging portion 111 and the second plugging portion 112 may be the same or different, and those skilled in the art may set the plugging depths as needed, which is not limited in the present invention. Similarly, the first and second insertion parts 111 and 112 may be the same or different in size and shape, and may be set by those skilled in the art according to the needs, which the present invention does not limit.
Alternatively, referring to fig. 4, the back plate comprises a third end 13 and a fourth end 14 arranged facing away from each other in a second direction B-B, which is perpendicular to the first direction a-a; wherein, the third end 13 is provided with a first lap joint part 131, the fourth end 14 is provided with a second lap joint part 141, and the first lap joint part 131 is matched with the second lap joint part 141; in the case where two adjacent back panels are connected, the first bridging portion 131 of one of the back panels is bridged to the second bridging portion 141 of the other of the back panels.
In the embodiment of the present invention, the third end 13 and the fourth end 14 are disposed in a second direction perpendicular to the first direction, and the first bridging portion 131 is disposed at the third end 13, and the second bridging portion 141 is disposed at the fourth end 14, so that the first bridging portion 131 of one of the back plates can be bridged to the second bridging portion 141 of the other back plate when two adjacent back plates are connected. In case a stable connection is achieved in the first direction a-a, the connection between two adjacent backplates is further made more stable in the second direction B-B.
Specifically, the first overlapping part 131 is matched with the second overlapping part 141, that is, the first overlapping part 131 has the same shape and structure as the second overlapping part 141, and the first overlapping part 131 has a size similar to that of the second overlapping part 141, so that in the case that two adjacent back panels are connected, the first overlapping part 131 can overlap the second overlapping part 141, and the two overlapping parts are matched with each other.
Specifically, the sectional shapes of the first strap 131 and the second strap 141 may include a trapezoid, a V-shape, a W-shape, etc., and the sectional shapes of the first strap 131 and the second strap 141 may not be limited by the present invention.
Optionally, the first bridging portion 131 is provided with a first microstructure, and the second bridging portion 141 is provided with a second microstructure, wherein the first microstructure is matched with the second microstructure; in the case where the first land 131 is lapped over the second land 141, the first microstructure and the second microstructure are fitted to each other.
In the embodiment of the present invention, by providing the first microstructure at the first land 131 and the second microstructure at the second land 141, the first microstructure and the second microstructure are fitted to each other in the case where the first land 131 is landed on the second land 141 when two adjacent back plates are connected. Therefore, the friction force between the first bridging part 131 and the second bridging part 141 is increased, the connection between the first bridging part 131 and the second bridging part 141 is further stabilized, and the stable connection between two adjacent back panels is enhanced. In addition, different textures can be constructed through the microstructures, and the overall appearance of the product is further improved.
Specifically, the first microstructure and the second microstructure are adapted to each other, that is, the shape and structure of the first microstructure are the same as those of the second microstructure, the size of the first microstructure is similar to that of the second microstructure, and when two adjacent back plates are connected, the first lap joint part 131 is lapped on the second lap joint part 141, the first microstructure is embedded on the second microstructure, and the two microstructures are matched with each other.
Optionally, the back plate body 10 includes a substrate layer 20, an insulating layer 30, and an elastic layer 40, which are sequentially disposed; the elastic layer 40 is made of polyolefin elastomer. The back sheet body 10 is formed into a layer in which the base material layer 20, the insulating layer 30, and the elastic layer 40 are sequentially arranged, and the base material layer 20, the insulating layer 30, and the elastic layer 40 are laminated in a laminating machine by a laminating process to obtain a laminated back sheet. When two adjacent back plates are connected, the first inserting part 111 is inserted into the first inserting groove 121, the elastic layers 40 on the outer surfaces of the first inserting part and the first inserting groove are in contact with each other, so that proper buffering performance is ensured between the back plates, under the condition that the structural strength of the back plates is ensured, the first inserting part 111 and the first inserting groove 121 form a closed structure after inserting, and meanwhile, the second inserting part 112 and the second inserting groove 122 form a closed structure. Therefore, certain buffering is generated on the backboard structure during plugging, the plugging stability is enhanced, and the connection stability between the backboards is enhanced.
And, the substrate layer 20 contains a metal material, and after the back panel is installed on a roof, the substrate layer 20 containing the metal material is covered and wrapped on the inner sides of the insulating layer 30 and the elastic layer 40, so that the metal material is not exposed in the external environment, direct contact between the metal material and air, rainwater and the like is avoided, and the corrosion resistance of the back panel is improved. Meanwhile, the substrate layer 20 is not flammable easily, the insulating layer 30 and the elastic layer 40 are flammable easily, and by arranging the insulating layer 30 and the elastic layer 40 on the substrate layer 20, when a fire breaks out indoors, flame contacts the substrate layer 20 which is not flammable first, and the insulating layer 30 and the elastic layer 40 which are flammable easily are difficult to contact, so that the back plate has better fireproof performance.
In an embodiment of the present invention, the substrate layer 20 may include a metal material. The material of the insulating layer 30 may include any one of polyethylene terephthalate, polybutylene terephthalate, polyethylene, and polypropylene. The material of the elastic layer 40 may include a polyolefin elastomer having a melting point of 60-100 ℃, and the polyolefin elastomer includes a pigment having high infrared reflection, such as Ti02, Fe2O3, and the like, wherein the filler content of the pigment is 2-10%, and the filler can further perform the function of blocking ultraviolet rays, so as to prevent ultraviolet rays from irradiating the insulating layer 30 below the elastic layer 40, thereby improving the stability of the whole backplane structure. The elastic layer 40 also contains a component that can cause crosslinking, which can be a thermally decomposed peroxide initiator, such as 2 ethylhexyl tert-butyl peroxycarbonate, and some co-crosslinking agents, such as triallyl isocyanurate. Thereby enabling the elastic layer 40 to generate a cross-linking reaction, and further improving the temperature resistance of the whole material.
Specifically, the thickness of the substrate layer 20 may be 200um to 600um, and the thickness of the insulating layer 30 may be 150um to 450 um; the thickness of the elastic layer 40 can be 50um to 150um, and the total thickness of the whole back plate can be 400um to 1200 um.
In a second aspect, the present invention also discloses a roofing photovoltaic module, comprising: the power generation device comprises a packaging material layer, a power generation unit, a front plate material layer and the back plate; the packaging material layer, the power generation unit and the front plate material layer are sequentially connected to the back plate. And sequentially connecting the packaging material layer, the power generation unit and the front plate material layer to the back plate, and placing the back plate, the packaging material layer, the power generation unit and the front plate material layer into a laminating machine for laminating through a laminating process to obtain the laminated roof photovoltaic module.
The roofing photovoltaic module provided by the embodiment of the utility model at least has the following advantages: by laminating the back plates, the packaging material layer, the power generation unit and the front plate material together, the first insertion part 111 and the second insertion part 112 are arranged along a preset included angle on the back plates, and when two adjacent back plates are connected, the first insertion part 111 of one back plate is inserted into the first insertion groove 121 of the other back plate, and meanwhile, the second insertion part 112 of one back plate is inserted into the second insertion groove 122 of the other back plate, so that the first insertion part 111 and the second insertion part 112 are stably connected in two directions along the preset included angle. From this, realized the firm connection between a plurality of backplates, strengthened the reliability of connecting to need not the machine operation, need not reserve the machine work area, guaranteed the generating unit area in the whole product, do not influence the power generation rate, compromise the connection steadiness and the product power generation rate of backplate simultaneously.
Optionally, the back plate body comprises a substrate layer, an insulating layer and an elastic layer which are sequentially arranged; wherein the elastic layer is made of polyolefin elastomer; the elastic layer is connected with the packaging material layer. Because the substrate layer 20 in the back plate comprises the metal material, after the back plate is installed on a roof, the substrate layer 20 comprising the metal material is covered and wrapped on the inner sides of the insulating layer 30, the elastic layer 40 and the packaging material layer, so that the metal material is not exposed in the external environment, the direct contact of the metal material with air, rainwater and the like is avoided, and the corrosion resistance of the roof photovoltaic module is improved. Meanwhile, the elastic layer 40 is connected with the packaging material layer, so that the connection between the back plate and the packaging material layer is realized. Because the substrate layer 20 is difficult for burning, and insulating layer 30, elastic layer 40 and the packaging material layer is easy for burning, through with insulating layer 30, elastic layer 40 and the packaging material layer establishes on substrate layer 20, when the conflagration breaks out in the room, the flame contacts the difficult substrate layer 20 that burns earlier, is difficult to contact the insulating layer 30, elastic layer 40 and the packaging material layer that easily burns, thereby makes roofing photovoltaic module possesses better fire behavior.
Specifically, the packaging material layer may include a rear packaging adhesive film and a front packaging adhesive film. The rear packaging adhesive film can be any one of ethylene vinyl acetate, polyolefin elastomer, polydimethylsiloxane, polyurethane and vinyl butyral ionic polymer, and the thickness of the rear packaging adhesive film can be 300-1000 um, preferably 500 um. The front packaging adhesive film can be any one of ethylene vinyl acetate, polyolefin elastomer, polydimethylsiloxane, polyurethane and polyvinyl butyral ionomer, and the thickness of the front packaging adhesive film is 300-1000 um, preferably 550 um.
The power generation unit may include a battery string, and the battery string may be a single crystal battery string or a polycrystalline battery string.
The front plate material layer can include glass, polymer transparent film, the luminousness of front plate material layer is greater than 89%, the thickness of front plate material layer can be 50um ~ 5 mm.
And stacking the back plate, the packaging material layer, the power generation unit and the front plate material layer, and then placing the stacked back plate, the packaging material layer, the power generation unit and the front plate material layer into a laminating machine for laminating to obtain a laminated part serving as a roof photovoltaic module. And after the laminated piece is cooled, installing a junction box on the front side of the roof photovoltaic module and connecting an external circuit.
In a third aspect, the present invention also discloses a photovoltaic building, comprising: the roofing photovoltaic module.
The photovoltaic building provided by the embodiment of the utility model at least has the following advantages: by installing the roof assembly on the photovoltaic building, the roof assembly comprises the back plate, the back plate comprises a back plate body 10, the first inserting portion 111 and the second inserting portion 112 are arranged along a preset included angle on the back plate body 10, under the condition that two adjacent back plates are connected, the first inserting portion 111 of one back plate is inserted into the first inserting groove 121 of the other back plate, and meanwhile, the second inserting portion 112 of one back plate is inserted into the second inserting groove 122 of the other back plate, so that the first inserting portion 111 and the second inserting portion 112 are stably connected in two directions along the preset included angle. From this, realized the firm connection between a plurality of backplates, strengthened the reliability of connecting to need not the machine operation, need not reserve the machine work area, guaranteed the generating unit area in the whole product, do not influence the power generation rate, compromise the connection steadiness and the product power generation rate of backplate simultaneously.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The backboard, the roof photovoltaic module and the photovoltaic building provided by the utility model are described in detail, specific examples are applied in the description to explain the principle and the implementation mode of the utility model, and the description of the examples is only used for helping to understand the method and the core idea of the utility model; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A backing sheet, comprising: a back plate body; along a first direction, the backboard body comprises a first end and a second end which are arranged in a deviating way;
the first end is provided with a first inserting part and a second inserting part which are arranged at a preset included angle;
the second end is correspondingly provided with a first inserting groove and a second inserting groove;
under the condition that two adjacent back plates are connected, the first inserting groove is matched with the first inserting part, and the second inserting groove is matched with the second inserting part; the first inserting part of one of the back plates is inserted into the first inserting groove of the other back plate, and the second inserting part of one of the back plates is inserted into the second inserting groove of the other back plate.
2. A backplane according to claim 1, wherein the plugging direction of the first plugging portion is parallel to the first direction;
the plugging direction of the second plugging part is vertical to the first direction.
3. A backboard according to claim 2, wherein the side wall of the second inserting groove is provided with a plurality of first through holes, and the second inserting part is provided with a plurality of second through holes;
under the condition that the second inserting part is inserted into the second inserting groove, the second through hole corresponds to the first through hole in arrangement position.
4. A backboard according to claim 1, wherein the first inserting part is smaller than the first inserting groove in size, and a first gap is formed between the first inserting part and the first inserting groove when the first inserting part is inserted into the first inserting groove;
the size of the second plugging part is smaller than that of the second plugging groove, and a second gap is formed between the second plugging part and the second plugging groove under the condition that the second plugging part is plugged into the second plugging groove.
5. A backplate according to claim 1 in which the backplate comprises third and fourth ends arranged away from each other in a second direction, the second direction being perpendicular to the first direction; wherein,
the third end is provided with a first lap joint part, the fourth end is provided with a second lap joint part, and the first lap joint part is matched with the second lap joint part;
under the condition that two adjacent back plates are connected, the first lap joint part of one back plate is lapped with the second lap joint part of the other back plate.
6. The backing plate of claim 5 wherein the first land is provided with a first microstructure and the second land is provided with a second microstructure, the first microstructure mating with the second microstructure;
the first microstructure and the second microstructure are embedded with each other in a state where the first lap joint is lapped on the second lap joint.
7. The back plate of claim 1, wherein the back plate body comprises a substrate layer, an insulating layer and an elastic layer which are arranged in sequence; wherein,
the elastic layer is made of polyolefin elastomer.
8. A roofing photovoltaic assembly, comprising: a layer of packaging material, a power generating unit, a layer of front sheet material and a back sheet according to any one of claims 1 to 7;
the packaging material layer, the power generation unit and the front plate material layer are sequentially connected to the back plate.
9. The roofing photovoltaic module of claim 8 wherein the back sheet body includes a substrate layer, an insulating layer, an elastic layer disposed in sequence; wherein,
the elastic layer is made of polyolefin elastomer;
the elastic layer is connected with the packaging material layer.
10. A photovoltaic building, comprising: the roofing photovoltaic assembly of any of claims 8 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121738799.6U CN215990642U (en) | 2021-07-28 | 2021-07-28 | Back plate, roof photovoltaic module and photovoltaic building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121738799.6U CN215990642U (en) | 2021-07-28 | 2021-07-28 | Back plate, roof photovoltaic module and photovoltaic building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215990642U true CN215990642U (en) | 2022-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121738799.6U Active CN215990642U (en) | 2021-07-28 | 2021-07-28 | Back plate, roof photovoltaic module and photovoltaic building |
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| Country | Link |
|---|---|
| CN (1) | CN215990642U (en) |
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- 2021-07-28 CN CN202121738799.6U patent/CN215990642U/en active Active
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