CN218414599U - Curved interlayer photovoltaic power generation glass - Google Patents
Curved interlayer photovoltaic power generation glass Download PDFInfo
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- CN218414599U CN218414599U CN202221871093.1U CN202221871093U CN218414599U CN 218414599 U CN218414599 U CN 218414599U CN 202221871093 U CN202221871093 U CN 202221871093U CN 218414599 U CN218414599 U CN 218414599U
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Abstract
The utility model provides a bent interlayer photovoltaic power generation glass, which belongs to the glass field and comprises a first glass substrate, a photovoltaic glass substrate and a second glass substrate which are sequentially and tightly connected, wherein at least one of the first glass substrate, the second glass substrate and the photovoltaic glass substrate has a bent radian in one direction; the photovoltaic glass substrate converts light energy into electric energy to be collected into a bus bar, and the bus bar is used for collecting, distributing and transmitting the electric energy; one side of the photovoltaic glass substrate, which is close to the first glass substrate, is provided with a first bus belt and a second bus belt, the first bus belt and the second bus belt are closely and electrically connected with the photovoltaic film layer through a bus bar, and the leading-out directions of the first bus belt and the second bus belt are arranged on a non-arcing edge or a straight edge area. The utility model discloses an intermediate layer photovoltaic glass's bending has brought multiple outward appearance possibility for photovoltaic BIPV project, under the condition that reduces generating efficiency hardly, makes the product appearance more pleasing to the eye to satisfy customer demand.
Description
Technical Field
The utility model belongs to the glass field relates to building glass, especially relates to curved intermediate layer photovoltaic power generation glass.
Background
Solar energy is an environmentally-friendly and inexhaustible renewable energy source, and a solar photovoltaic cell is a device which responds to light and can convert light energy into electric energy. There are many materials known to produce photovoltaic effects, such as: monocrystalline silicon, polycrystalline silicon, amorphous silicon, cadmium telluride, gallium arsenide, copper indium gallium selenide, and the like.
However, most of the existing photovoltaic BIPV products are flat sandwich products, and the main reason is that when photovoltaic glass is bent, the photovoltaic glass changes a film layer due to high temperature and bending, so that the power generation capability is greatly weakened, and the bent sandwich photovoltaic power generation glass cannot be obtained.
SUMMERY OF THE UTILITY MODEL
The to-be-solved problem of the utility model is to provide curved intermediate layer photovoltaic power generation glass, solved the problem in the background art, realized intermediate layer photovoltaic glass's bending, brought multiple outward appearance possibility for photovoltaic BIPV project, under the condition that hardly reduces generating efficiency, made the product appearance more pleasing to the eye to satisfy customer demand.
In order to solve the technical problem, the utility model discloses a technical scheme is: the bent interlayer photovoltaic power generation glass comprises a first glass substrate, a photovoltaic glass substrate and a second glass substrate which are sequentially and tightly connected, wherein at least one of the first glass substrate, the second glass substrate and the photovoltaic glass substrate has a bent radian in one direction;
the photovoltaic glass substrate converts light energy into electric energy and collects the electric energy into a bus bar, and the bus bar is used for collecting, distributing and transmitting the electric energy;
the photovoltaic glass substrate is close to one side of the first glass substrate is provided with a first bus belt and a second bus belt, the first bus belt and the second bus belt are closely and electrically connected with the photovoltaic film layer through a bus bar, and the leading-out direction of the first bus belt and the leading-out direction of the second bus belt are arranged on a non-arcing edge or a straight edge region.
Furthermore, a first bonding layer is arranged between the first glass substrate and the photovoltaic glass substrate, a second bonding layer is arranged between the second glass substrate and the photovoltaic glass substrate, the first bonding layer and the second bonding layer are made of PVB, EVA or SGP, and the transmittance of the second bonding layer is greater than or equal to that of the first bonding layer; the thicknesses of the first bonding layer and the second bonding layer are both more than or equal to 1.52mm.
Further, the thickness of the photovoltaic glass substrate is less than or equal to that of the first glass substrate and less than or equal to that of the second glass substrate; the second glass substrate is transparent white glass or ultra-white glass, the direction of the second glass substrate is the outdoor surface, and the first glass substrate is the indoor surface.
Furthermore, the first glass substrate and/or the second glass substrate are/is formed by hot bending, semi-toughening, toughening or regional toughening, the photovoltaic glass substrate is formed by cold bending, the photovoltaic glass substrate is cadmium telluride photovoltaic power generation glass or copper indium gallium selenide photovoltaic power generation glass, the thickness of the substrate is less than or equal to 3.5mm, and the surface stress of the photovoltaic glass substrate is greater than or equal to 10Mpa.
Furthermore, the bus bars comprise a first bus bar and a second bus bar, the first bus bar is arranged on two sides of the photovoltaic glass substrate close to the non-arcing side and is arranged in parallel, the second bus bar is arranged on the two first bus bars, the first bus bar is connected with one of the second bus bars, and the second bus bar is connected with the other second bus bar; the first bus bar and the second bus bar are not in contact with each other; and a direct current voltage is formed between the first bus bar and the second bus bar.
Further, the first bus bar is made of metal aluminum; the second bus bar is a tinned copper foil with conductive adhesive or a tinned aluminum foil with conductive adhesive, and the first bus bar and the second bus bar are copper foils, aluminum foils, tinned copper foils or tinned aluminum foils.
Furthermore, an insulating layer is arranged below part of the second bus bar, the insulating layer is made of non-conductive glue, the width of the insulating layer exceeds the width of the first bus bar by more than 2mm, and the first bus bar is arranged on the insulating layer in the middle.
Furthermore, the width of the first bus bar is larger than or equal to that of the second bus bar and larger than or equal to that of the first bus belt; the width of the first bus bar is equal to the width of the second bus bar.
Furthermore, a first bus bar and a second bus bar are arranged on the second bus bar, the first bus bar and the second bus bar are integrated and tightly connected through welding, and the second bus bar is used for connecting the first bus bar and the first bus bar, and the first bus bar and the second bus bar.
Furthermore, a film removing area is arranged on the periphery of the photovoltaic glass substrate, and the width of the film removing area is larger than or equal to 7mm.
Compared with the prior art, the utility model discloses technical effect below having.
1. The utility model discloses set up the first glass substrate and the second glass substrate of hot bending, set up the photovoltaic glass substrate of cold bending simultaneously between the two, the first area of converging that sets up and second area of converging are connected with photovoltaic rete through the busbar closely electricity, the leading-out direction in first area of converging and second area of converging sets up on non-arcing limit or straight flange region, guaranteed the normal realization of photovoltaic power generation, realized crooked shape again, the whole structure forms curved intermediate layer photovoltaic power generation glass, the application demand of various special shape buildings has been satisfied;
2. the light transmittance of the second bonding layer of the utility model is more than or equal to that of the first bonding layer; the thicknesses of the first bonding layer and the second bonding layer are both more than or equal to 1.52mm, and are larger than those of common laminated glass, so that the bonding strength and stability in a complete state are ensured;
3. the utility model discloses set up first generating line that converges, the second generating line that converges, first area and the second area that converges, realized that the stability of circuit converges and the reposition of redundant personnel, form direct current voltage, stability is high, and partial second converges the below in area and is provided with the insulating layer, the insulating layer is non-conducting glue, the width of insulating layer surpasss the width in first area that converges more than 2mm, and first area that converges sets up between two parties on the insulating layer, avoid the second to converge the area and take place even electric phenomenon with other places, promote the security.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
FIG. 1 is a schematic structural view of a multilayer layout of the curved interlayer photovoltaic power generation glass of the present invention;
fig. 2 is a plan view of fig. 1 according to the present invention.
Reference numerals:
1. a first glass substrate; 2. a second glass substrate; 3. a photovoltaic glass substrate; 4. a first adhesive layer; 5. a second adhesive layer; 6. a first bus bar; 7. a second bus bar; 8. an insulating layer; 9. a second bus bar; 10. a first bus bar.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features of the embodiments of the present invention may be combined with each other.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate a number of the indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
As shown in fig. 1 and 2, the bent interlayer photovoltaic power generation glass comprises a first glass substrate 1, a photovoltaic glass substrate 3 and a second glass substrate 2 which are sequentially and tightly connected, wherein at least one of the first glass substrate 1, the second glass substrate 2 and the photovoltaic glass substrate 3 has a bent radian in one direction, the radian is set according to the requirements of a building, the different radians have different requirements on the thickness and parameters of the photovoltaic glass substrate 3, and the photovoltaic conversion performance needs to be ensured in a bent state;
the photovoltaic glass substrate 3 converts light energy into electric energy and collects the electric energy into a bus bar, and the bus bar is used for collecting, distributing and transmitting the electric energy;
one side of the photovoltaic glass substrate 3 close to the first glass substrate 1 is provided with a first bus belt 6 and a second bus belt 7, the first bus belt 6 and the second bus belt 7 are closely electrically connected with a photovoltaic film layer through a bus bar, the leading-out directions of the first bus belt 6 and the second bus belt 7 are arranged on a non-arcing edge or a straight edge region, and the stability and the stationarity of electric energy transmission of the first bus belt 6 and the second bus belt 7 in a complete state are guaranteed.
Preferably, be equipped with first tie coat 4 between first glass substrate 1 and the photovoltaic glass substrate 3, be equipped with second tie coat 5 between second glass substrate 2 and the photovoltaic glass substrate 3, first tie coat 4 and second tie coat 5 material are PVB, EVA or SGP, and the material is different, and the performance is different, selects and sets for just can according to the actual condition, for example: PVB has the characteristics of transparency, heat resistance, cold resistance, high mechanical strength and the like, is an excellent adhesive material for manufacturing laminated glass, has good adhesive force to quartz glass, has safety performance, excellent sound insulation, heat insulation, safety, shock resistance, sun shading and the like, and is a preferred material for processing safety glass; the EVA has the characteristics of good softness, rubber-like elasticity, good flexibility, transparency, surface gloss, good chemical stability, good aging resistance, good ozone resistance and no toxicity at the temperature of-50 ℃; compared with the prior two types, the SGP has high price, can realize the use of thinner and lighter laminated glass and also meet the specific wind load or structural requirement, has high glass strength and less stress deformation, has 100 times of impact strength and more than 5 times of tearing strength compared with the traditional PVB laminated glass, is beneficial to realizing the use of thinner and lighter laminated glass and also meets the specific wind load or structural requirement, and is suitable for being selectively used when the strength and the thickness have requirements in special environment; more preferably, the transmittance of the second adhesive layer 5 is greater than or equal to the transmittance of the first adhesive layer 4; the thicknesses of the first bonding layer 4 and the second bonding layer 5 are both more than or equal to 1.52mm, and are larger than those of common laminated glass, so that the bonding strength and stability in a complete state are ensured.
Preferably, the thickness of the photovoltaic glass substrate is less than or equal to that of the first glass substrate 1 and less than or equal to that of the second glass substrate 2; the thickness of the photovoltaic glass substrate is as small as possible, the performance is guaranteed under the convenient complete state, the photovoltaic film is prevented from being damaged, the larger the thickness is, the bending capacity is reduced, the second glass substrate 2 is transparent white glass or ultra-white glass, the light transmission is guaranteed, the photovoltaic glass substrate 3 can receive enough sunlight and meet the photovoltaic power generation requirement, the direction of the second glass substrate 2 is the outdoor surface and bears the external pressure and impact, the maximum thickness is adopted, the first glass substrate 1 is the indoor surface and is located the innermost side, and the thickness is smaller relative to the second glass substrate 2.
Preferably, the first glass substrate 1 and/or the second glass substrate 2 are/is formed by hot bending, semi-tempering, tempering or regional tempering, the photovoltaic glass substrate 3 is formed by cold bending, the hot bending is relatively low in cold bending cost, the hot bent glass is processed by a hot bending furnace, the glass is processed to a softening point and is rapidly and uniformly cooled by cold air, uniform compressive stress is formed on the surface of the tempered glass, tensile stress is formed inside the tempered glass, the cold bending of the glass is formed by utilizing the characteristic that plate glass has certain elasticity, manual reasonable bending and installation are carried out in place during installation, the effect of fitting the curved surface of the curtain wall is achieved by bending and twisting deformation of a plurality of pieces of plate glass, and allowable internal stress exists in the installed plate including glass and sectional materials. In the design process, will utilize all plates of BIM system accurate simulation and tie point and data systematization, all tie points of accurate positioning when the construction, make the glass plate can the cold bending of each other press, in this application, adopt the radian of the first glass substrate 1 of quick definite and second glass substrate 2 of hot bending, therefore, the cost is reduced, at the in-process of installation, photovoltaic glass substrate 3 establishes between the two, set up along with the shape with the two, can realize the unanimity of complete radian, form the interbedded photovoltaic power generation glass in this application, also because of this reason, photovoltaic glass substrate 3's thickness should not be too big, otherwise be difficult to realize bending along with the shape.
The photovoltaic glass substrate 3 is cadmium telluride photovoltaic power generation glass or copper indium gallium selenide photovoltaic power generation glass, the power generation capacity of the cadmium telluride photovoltaic power generation glass is strong (3% -8% higher than the power generation rate of monocrystalline silicon), the conversion efficiency is high (the theoretical conversion rate is 33%), the temperature coefficient is low (the temperature is influenced the minimum), the weak light power generation performance is good (power generation is carried out in rainy days), the installation angle influence is small (the installation angle is free), the stability is high (the environmental adaptation capacity is strong), the hot spot effect is small (the normal power generation can be still carried out after being shielded by leaves and dust), the copper indium gallium selenide photovoltaic power generation glass is very suitable for being applied to distributed, member and integrated green buildings, the thickness of the copper indium gallium selenide photovoltaic power generation glass can be thinner, the performance is stable, the radiation resistance is strong, the photoelectric conversion efficiency is high, the thickness of the photovoltaic power generation glass substrate is not more than 3.5mm, the good bending degree is ensured, the cold bending forming is convenient, the surface stress of the photovoltaic glass substrate 3 is not less than 10Mpa, the strength and the tension are ensured, and the circulation of the current is ensured.
Preferably, the bus bars comprise a first bus bar 10 and a second bus bar 9, the first bus bar 10 is arranged on two sides of the photovoltaic glass substrate 3 close to the non-arcing side and arranged in parallel, the flatness is good, the two sides are converged, the efficiency is higher, the transmission is faster, the second bus bar 9 is arranged on the two first bus bars 10 and tightly connected through welding, the second bus bar 9 is used for connecting the first bus bar 10 with the first bus bar strap 6 and the first bus bar 10 with the second bus bar strap 7, and the structure improves the rapidness and the stability of the operation; a first bus bar 6 and a second bus bar 7 are arranged on the second bus bars 9, the first bus bar 6 is connected with one of the second bus bars 9, and the second bus bar 7 is connected with the other second bus bar 9; the first bus bar 6 and the second bus bar 7 do not contact each other; direct-current voltage is formed between the first bus bar 6 and the second bus bar 7, circuit output is achieved, conversion from light energy to electric energy is achieved, the photovoltaic building wall is used for meeting some basic power supply requirements, energy consumption is saved, and requirements of green buildings are met.
Preferably, the first busbar 10 is metallic aluminum; second busbar 9 converges for the tinned copper foil that has the conducting resin or the tinned aluminum foil that has the conducting resin, and first area 6 and the second area 7 of converging is copper foil, aluminium foil, tinned copper foil or tinned aluminum foil, no matter select which kind of material, as long as good electrically conductive, satisfy the transport of electric current can, do not do specific injecing.
Preferably, an insulating layer 8 is arranged below part of the second bus bar 7, the insulating layer 8 is made of non-conductive glue, the width of the insulating layer 8 exceeds the width of the first bus bar 6 by more than 2mm, the first bus bar 6 is arranged on the insulating layer 8 in the middle, the second bus bar 7 is prevented from being connected with other places, and safety is improved.
Preferably, the width of the first busbar 10 is greater than or equal to the width of the second busbar 9 is greater than or equal to the width of the first busbar strip 6; the width that first area 6 that converges equals with the width that the second converged takes 7, and the stability of connecting from the bottom up has been guaranteed in the setting of above parameter, has also avoided the mistake to even to lead to even electric problem, further promotes the security.
Preferably, the periphery of the photovoltaic glass substrate 3 is provided with a film removing area, the width of the film removing area is larger than or equal to 7mm, a bending operation space is reserved, the photovoltaic film layer is prevented from being damaged, and the performance stability of the photovoltaic film after integral installation is ensured.
The whole structure is in the process of making, carry out the hot bending shaping of first glass substrate 1 and second glass substrate 2 earlier, photovoltaic glass substrate 3's side sets up earlier and converges busbar 9 according to the second, first busbar 10 that converges, first area 6 that converges and second area 7 that converges, realize the circuit setting for photovoltaic power generation, then require the cold bending to take shape according to the radian of first glass basis and second glass substrate 2, form curved intermediate layer photovoltaic power generation glass, both realized crooked structure, realized the demand that the photovoltaic was discover again, satisfied the application demand of various special shape buildings.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (10)
1. Curved intermediate layer photovoltaic power generation glass, its characterized in that: the photovoltaic glass substrate comprises a first glass substrate, a photovoltaic glass substrate and a second glass substrate which are sequentially and tightly connected, wherein at least one of the first glass substrate, the second glass substrate and the photovoltaic glass substrate has a bent radian in one direction;
the photovoltaic glass substrate converts light energy into electric energy and collects the electric energy into a bus bar, and the bus bar is used for collecting, distributing and transmitting the electric energy;
one side of the photovoltaic glass substrate, which is close to the first glass substrate, is provided with a first bus belt and a second bus belt, the first bus belt and the second bus belt are electrically connected with the photovoltaic film layer through a bus bar in a close manner, and the leading-out directions of the first bus belt and the second bus belt are arranged on a non-arcing edge or a straight edge region.
2. The curved laminated photovoltaic power generating glass according to claim 1, wherein: a first bonding layer is arranged between the first glass substrate and the photovoltaic glass substrate, a second bonding layer is arranged between the second glass substrate and the photovoltaic glass substrate, the first bonding layer and the second bonding layer are made of PVB, EVA or SGP, and the transmittance of the second bonding layer is greater than or equal to that of the first bonding layer; the thicknesses of the first bonding layer and the second bonding layer are both more than or equal to 1.52mm.
3. The curved laminated photovoltaic power generating glass according to claim 1, wherein: the thickness of the photovoltaic glass substrate is less than or equal to that of the first glass substrate and less than or equal to that of the second glass substrate; the second glass substrate is transparent white glass or ultra-white glass, the direction of the second glass substrate is the outdoor surface, and the first glass substrate is the indoor surface.
4. The curved laminated photovoltaic power generating glass according to claim 1, wherein: the photovoltaic glass substrate is formed by cold bending, is cadmium telluride photovoltaic power generation glass or copper indium gallium selenide photovoltaic power generation glass, is less than or equal to 3.5mm thick and has surface stress more than or equal to 10Mpa.
5. The curved laminated photovoltaic power generating glass according to any one of claims 1 to 4, wherein: the bus bars comprise a first bus bar and a second bus bar, the first bus bar is arranged on two sides of the photovoltaic glass substrate close to the non-arcing edge and arranged in parallel, the second bus bar is arranged on the two first bus bars, the first bus bar is connected with one of the second bus bars, and the second bus bar is connected with the other second bus bar; the first bus bar and the second bus bar are not in contact with each other; and a direct-current voltage is formed between the first bus strip and the second bus strip.
6. The curved laminated photovoltaic power generating glass according to claim 5, wherein: the first bus bar is made of metal aluminum; the second bus bar is a tinned copper foil with a conductive adhesive or a tinned aluminum foil with a conductive adhesive, and the first bus bar and the second bus bar are copper foils, aluminum foils, tinned copper foils or tinned aluminum foils.
7. The curved laminated photovoltaic power generating glass according to claim 5, wherein: and an insulating layer is arranged below the second bus bar, the insulating layer is non-conductive adhesive, the width of the insulating layer exceeds the width of the first bus bar by more than 2mm, and the first bus bar is arranged on the insulating layer in the middle.
8. The curved laminated photovoltaic power generating glass according to claim 5, wherein: the width of the first bus bar is larger than or equal to that of the second bus bar and larger than or equal to that of the first bus belt; the width of the first bus bar is equal to the width of the second bus bar.
9. The curved laminated photovoltaic power generating glass according to claim 5, wherein: the second bus bar is provided with a first bus bar belt and a second bus bar belt, the first bus bar and the second bus bar are integrated and are tightly connected through welding, and the second bus bar is used for connecting the first bus bar and the first bus bar belt, and the first bus bar and the second bus bar belt.
10. The curved laminated photovoltaic power generating glass according to any one of claims 1 to 4, 6 to 9, wherein: the periphery of the photovoltaic glass substrate is provided with a film removing area, and the width of the film removing area is more than or equal to 7mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221871093.1U CN218414599U (en) | 2022-07-12 | 2022-07-12 | Curved interlayer photovoltaic power generation glass |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221871093.1U CN218414599U (en) | 2022-07-12 | 2022-07-12 | Curved interlayer photovoltaic power generation glass |
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| CN218414599U true CN218414599U (en) | 2023-01-31 |
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| CN202221871093.1U Active CN218414599U (en) | 2022-07-12 | 2022-07-12 | Curved interlayer photovoltaic power generation glass |
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