CN209216992U - A kind of photovoltaic module and photovoltaic curtain wall - Google Patents
A kind of photovoltaic module and photovoltaic curtain wall Download PDFInfo
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- CN209216992U CN209216992U CN201821347380.6U CN201821347380U CN209216992U CN 209216992 U CN209216992 U CN 209216992U CN 201821347380 U CN201821347380 U CN 201821347380U CN 209216992 U CN209216992 U CN 209216992U
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- 238000005538 encapsulation Methods 0.000 description 11
- 239000011521 glass Substances 0.000 description 8
- 238000010248 power generation Methods 0.000 description 8
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- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
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- 239000005340 laminated glass Substances 0.000 description 1
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Classifications
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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
- 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
- Y02E10/52—PV systems with concentrators
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- Photovoltaic Devices (AREA)
Abstract
The embodiment of the present application discloses a kind of photovoltaic module and photovoltaic curtain wall.Photovoltaic module includes: the transparent front plate set gradually, a plurality of photovoltaic chips and encapsulated layer；Wherein, transparent front plate is plane close to the side of encapsulated layer, and transparent front plate is provided with a plurality of convex lens structures being arranged in a one-to-one correspondence with a plurality of photovoltaic chips far from the side of encapsulated layer；Convex lens structures are used to light convergence being irradiated to corresponding photovoltaic chip.The generating efficiency of photovoltaic chip can be improved in the application, and the arranged for interval of photovoltaic chip not only saves chip cost, but also realizes the translucent effect of photovoltaic module.
Description
Technical Field
The application relates to the technical field of solar energy, in particular to a photovoltaic module and a photovoltaic curtain wall.
Background
BIPV (building Integrated Photo voltaic) is a technology for integrating solar power (photovoltaic) products into buildings, namely a photovoltaic building integration technology. The photovoltaic curtain wall is a specific application of a photovoltaic building integration technology, belongs to integration of a photovoltaic square matrix and a building, is a high-tech curtain wall product, integrates some basic characteristics of the curtain wall, has a power generation function, can directly utilize sunlight to generate power, is green and pollution-free, and does not generate any greenhouse gas. At present, a light-transmitting part is mostly etched on a glass-based power generation chip of a light-transmitting photovoltaic module, so that the light-transmitting module with a part of power generation part transmitting light is formed, the power generation efficiency is low, and the cost of the photovoltaic module is indirectly increased. In addition, the irradiance of the sunlight collected on the photovoltaic chip of the photovoltaic module is also very uneven, resulting in a reduction in the service life of the photovoltaic chip.
Therefore, how to improve the power generation efficiency of the photovoltaic module, reduce the cost of manufacturing the photovoltaic module, and improve the service life of the photovoltaic chip becomes a problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a photovoltaic module and a photovoltaic curtain wall, and aims to solve the problems of low power generation efficiency and non-uniform light condensation of the existing photovoltaic module.
The embodiment of the application provides a photovoltaic module, includes: the photovoltaic module comprises a transparent front plate, a plurality of photovoltaic chips and a packaging layer which are arranged in sequence; wherein,
one side of the transparent front plate, which is close to the packaging layer, is a plane, and one side of the transparent front plate, which is far away from the packaging layer, is provided with a plurality of convex lens structures which are arranged in one-to-one correspondence with the plurality of photovoltaic chips; the convex lens structure is used for converging light rays to irradiate the corresponding photovoltaic chip.
Optionally, the photovoltaic chip is a bar-shaped photovoltaic chip, the convex lens structure is a plano-convex cylindrical lens, and the extension direction of the bar-shaped photovoltaic chip is the same as that of the plano-convex cylindrical lens.
Optionally, the width of the plano-convex cylindrical lenses is greater than that of the strip-shaped photovoltaic chip, and the plurality of plano-convex cylindrical lenses are continuously arranged without intervals.
Optionally, the width of the plano-convex cylindrical lenses is greater than that of the strip-shaped photovoltaic chip, and the plurality of plano-convex cylindrical lenses are sequentially arranged at set intervals.
Optionally, the width range of the strip-shaped photovoltaic chip is 2mm to 20 mm; the width range of the plano-convex cylindrical lens is 4mm to 40 mm.
Optionally, the duty ratio of the photovoltaic chip on the transparent front plate is 1:1 to 1: 2.
Optionally, the encapsulation layer is a PET encapsulation layer.
Optionally, the transparent front plate includes an optical glass transparent front plate, a PMMA transparent front plate, or a PC transparent front plate.
Optionally, the encapsulation layer is a transparent encapsulation layer or an opaque encapsulation layer.
In addition, this embodiment still provides a photovoltaic curtain wall, and it adopts arbitrary photovoltaic module.
The photovoltaic module of this embodiment includes: the photovoltaic module comprises a transparent front plate, a plurality of photovoltaic chips and a packaging layer which are arranged in sequence; one side of the transparent front plate, which is close to the packaging layer, is a plane, and one side of the transparent front plate, which is far away from the packaging layer, is provided with a plurality of convex lens structures which are arranged in one-to-one correspondence with the plurality of photovoltaic chips; the convex lens structure is used for converging light rays to irradiate the corresponding photovoltaic chip. The photovoltaic chip is arranged at the incident focusing light path position of the convex lens structure, so that the light energy utilization rate is improved, the influence of the photovoltaic chip on light transmission is reduced, the light transmittance of the photovoltaic module can be kept, and the light energy utilization rate is high. In addition, the photovoltaic module can only use single-layer glass as the transparent front plate, is simple to manufacture, and reduces the cost; the flat glass with the plano-convex cylindrical lens on one side also has a better decorative effect. In this application photovoltaic chip's interval arrangement had both saved the chip cost, realized photovoltaic module's printing opacity effect again, can directly be used for solar photovoltaic curtain.
Drawings
FIG. 1 is a front view of a photovoltaic module according to an embodiment of the present disclosure;
FIG. 2 is a bottom view of a photovoltaic module according to an embodiment of the present disclosure;
FIG. 3 is a left side view of a photovoltaic module according to an embodiment of the present application;
fig. 4 is a partially enlarged schematic view of a portion a of fig. 3.
Detailed Description
In order that the above objects, features and advantages of the present application can be more clearly understood, the present application will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of implementation in many different ways than those herein set forth and of similar import by those skilled in the art without departing from the spirit and scope of this disclosure, and is therefore not limited to the specific implementations disclosed below. The method for producing the ultra-thin flexible solid electrolyte membrane provided by the present application will be described and illustrated in detail by specific examples.
As shown in fig. 1 to 4, fig. 1 is a front view of a photovoltaic module according to an embodiment of the present application; FIG. 2 is a bottom view of a photovoltaic module according to an embodiment of the present application; FIG. 3 is a left side view of a photovoltaic module according to an embodiment of the present application; fig. 4 is a partially enlarged schematic view of a portion a of fig. 3. In an embodiment of the present application, there is provided a photovoltaic module including: the photovoltaic module comprises a transparent front plate 2, a plurality of photovoltaic chips 1 and a packaging layer 3 which are arranged in sequence; one side of the transparent front plate 2 close to the packaging layer 3 is a plane, and one side of the transparent front plate 2 far from the packaging layer 3 is provided with a plurality of convex lens structures 2-1 which are arranged in one-to-one correspondence with the plurality of photovoltaic chips 1. The convex lens structure 2-1 is used for converging light rays to irradiate the corresponding photovoltaic chip 1. Light is converged on the corresponding photovoltaic chip through the convex lens structure 2-1, so that the light energy utilization rate can be improved, and the power generation efficiency is further improved.
In one embodiment of the present application, the photovoltaic chip 1 may be a strip-shaped photovoltaic chip, the convex lens structure 2-1 is a plano-convex cylindrical lens, and the extension directions of the strip-shaped photovoltaic chip and the plano-convex cylindrical lens are the same.
It should be noted that, in the embodiments of fig. 1 to 4, only the strip-shaped photovoltaic chip and the plano-convex cylindrical lens are taken as examples for description, the photovoltaic chip 1 may also be in other shapes, for example, the photovoltaic chip 1 is designed to be square or rectangular, the shape of the convex lens structure 2-1 needs to be designed correspondingly according to the shape of the photovoltaic chip 1, for example, the projection of the convex lens structure 2-1 on the side plane of the transparent front plate 2 close to the encapsulation layer is correspondingly square or rectangular.
Referring to fig. 1 to 4, a plano-convex cylindrical lens is disposed on an outer side of the transparent front plate 2 (i.e., a side away from the encapsulation layer 3), the photovoltaic chips 1 are disposed on an inner side of the transparent front plate 2, and the photovoltaic chips 1 correspond to the plano-convex cylindrical lenses one by one. The sunlight 4 is converged on the photovoltaic chip 1 corresponding to the plano-convex cylindrical lens through the plano-convex cylindrical lens. The photovoltaic chip 1 converts sunlight 4 into electric energy. The plurality of bus bars 5 converge the electric energy of each photovoltaic chip 1, and the electric energy is connected with an external circuit through the pen-test junction box 6, the lead 7 and the connector 8, so that the electric energy is led out. The packaging layer 3 covers one side of the transparent front plate 2, where the photovoltaic chip 1 is arranged.
Referring to fig. 4, in the present embodiment, the transparent front plate 2 is a plate glass, one side of which is a plane and one side of which is a parallel arrangement of a plurality of plano-convex cylindrical lenses. Wherein, the generating line direction of plano-convex cylindrical lens runs through whole photovoltaic module. In this embodiment, adjacent plano-convex cylindrical lenses are abutted without a space. The photovoltaic chips 1 are arranged at intervals and arranged on one side of the transparent front plate 2, which is a plane. The width of the flat convex cylindrical lens is larger than that of a single photovoltaic chip 1.
In this embodiment, each of the photovoltaic chips 1 is in a long strip shape and is disposed along a bus direction of the plano-convex cylindrical lens, and each of the photovoltaic chips 1 is correspondingly disposed on a light path of a focusing light of the plano-convex cylindrical lens, in one specific embodiment, the photovoltaic chip 1 exactly corresponds to a focal plane of the plano-convex cylindrical lens, that is, coincides with the focal plane of the plano-convex cylindrical lens. When the thickness of the transparent front plate 2 is adjusted, the size of the convex surface of the plano-convex cylindrical lens should be adjusted accordingly.
By arranging the photovoltaic chip 1 in a focusing light path of the convex lens structure 2-1, particularly on a focal plane of the convex lens structure 2-1, sunlight received by the photovoltaic module can be focused on an illuminated surface of the photovoltaic chip 1, and solar energy can be converted into electric energy through the photovoltaic chip 1. The convex lens structure 2-1 realizes the light condensation effect by changing the light propagation path, and improves the light energy utilization rate of the photovoltaic chip 1. More solar energy can be converted into electrical energy.
In addition, the spacing region between the photovoltaic chips 1 is still a transparent region, so that the photovoltaic module still has a certain light transmittance. Moreover, under the condition that the light energy utilization rate of the photovoltaic chip 1 is improved, the size of the photovoltaic chip can be properly reduced so as to increase the area of the light transmission area, and the light transmission performance of the photovoltaic module is improved.
In another embodiment, when the photovoltaic chip 1 is a strip-shaped photovoltaic chip and the convex lens structure 2-1 is a plano-convex cylindrical lens, adjacent plano-convex cylindrical lenses may be spaced at a certain distance, and the area therebetween forms a planar light-transmitting area and faces the area between adjacent photovoltaic chips 1. The spacing distance between adjacent plano-convex cylindrical lenses can be adjusted according to the needs of users, and is not limited herein.
In one embodiment of the present application, the plano-convex cylindrical lens has a width ranging from 4mm to 40 mm. The transparent front plate 2 may be hollow glass, laminated glass or laminated hollow glass. The specific material of the transparent front plate 2 is not limited, and may be, for example, an optical glass transparent front plate, a PMMA transparent front plate, or a PC transparent front plate.
In one embodiment of the present application, the region of the photovoltaic module where the photovoltaic chip 1 is disposed is an opaque portion, and the rest of the region is a transparent portion. Most of the sunlight is collected on the photovoltaic chip 1 through refraction, and a small part of the sunlight enters the room through the light transmission part of the photovoltaic module.
In one embodiment of the present application, the photovoltaic chip 1 is a strip-shaped photovoltaic chip, and the width of the photovoltaic chip 1 ranges from 2mm to 20 mm. The duty cycle of the photovoltaic chip 1 on the transparent front plate 2 is 1:1 to 1: 2. Wherein, the duty ratio is the ratio of the total area occupied by the plurality of photovoltaic chips 1 on the transparent front plate 2 to the area of the part not occupied by the photovoltaic chips 1.
In one embodiment of the present application, the light-transmitting effect of the photovoltaic module can be adjusted as required, for example, the width of the flat convex cylindrical lens can be adjusted by reducing the width of the photovoltaic chip 1, the light-transmitting capability of the photovoltaic module can be increased by adjusting the width of the flat convex cylindrical lens, and the power generation capability of the photovoltaic module can be increased by increasing the width of the photovoltaic chip 1 and designing the light-gathering effect of the flat convex cylindrical lens. The width of the photovoltaic chip 1 can be selected within a wide range of 2-20 mm.
In one embodiment of the present application, the encapsulation layer 3 is a polymer insulating material, including but not limited to the following: PET packaging layer, EVA material and PVB material; inorganic thin-film semiconductor materials, e.g. Si, GaAs, Al2O3And the like. In addition, the encapsulation layer 3 may be an inorganic or organic composite film encapsulation layer.
Taking the example that the packaging layer 3 adopts a PET packaging layer, the PET packaging layer packages the plurality of photovoltaic chips 1 on the transparent front plate 2, and can play roles of water resistance, dust resistance and insulation. Opaque encapsulating layer material may also be used if used in scenes where light transmission is not desired.
For photovoltaic modules employing transparent PET encapsulation layers. The manufacturing process comprises the following steps: the back of the front plate lens glass is provided with bar-shaped photovoltaic chips, after the photovoltaic chips are connected with the bus bars, the transparent packaging layer PET is covered on the back of the photovoltaic chips and the back of the front plate lens glass, then the transparent packaging layer PET, the photovoltaic chips, the bus bars and the front plate lens glass are packaged into a whole by a high-temperature and high-pressure bearing process, and then the junction box 6, the lead 7 and the connector are installed to form a single-layer concentrating photovoltaic glass assembly.
In one embodiment of the present application, the bus bar is formed by sequentially assembling, laminating, riveting and packaging a bus bar and an insulating layer, wherein the bus bar is made of a conductive material, and a metal with excellent conductivity, such as pure copper, brass and aluminum alloy, is selected; the insulating layer selects the material that dielectric coefficient is high, breakdown voltage is high, for example epoxy, polyester, aramid fiber, polyester film, polyimide film, and the present embodiment selects the polyimide film that thickness is 0.1mm to be the insulating layer, and pure copper is the busbar of conducting layer.
In one embodiment of the present application, the photovoltaic chip may not be a strip shape, but be a square, the block-shaped photovoltaic chip array is disposed on the back side of the transparent front plate, correspondingly, the convex lens structures and the photovoltaic chips are disposed in a one-to-one correspondence, and the array is disposed on the front side of the transparent front plate. And will not be described in detail herein.
Furthermore, it should be noted that, in practical applications, the number of the convex lens structures 2-1 on the transparent front plate 2 may be larger than the number of the photovoltaic chips 1, and as shown in fig. 4, there are convex lens structures beyond the arrangement area of the photovoltaic chips 1 on the lower edge of the transparent front plate 2. This facilitates the manufacture of the convex lens structure on the whole transparent front plate 2, and also provides structural uniformity and aesthetic appearance to the whole transparent front plate.
The application also provides a photovoltaic curtain wall, and the photovoltaic curtain wall adopts the photovoltaic module of any one of the above embodiments. Because photovoltaic module has above-mentioned beneficial effect, consequently photovoltaic curtain wall's generating efficiency is higher, and the spotlight is comparatively even, and the life of photovoltaic chip is longer in its photovoltaic module.
Although the present application has been described with reference to the preferred embodiments, it is not intended to limit the present application, and those skilled in the art can make variations and modifications without departing from the spirit and scope of the present application, therefore, the scope of the present application should be determined by the claims that follow.
Claims (10)
1. A photovoltaic module, comprising: the photovoltaic module comprises a transparent front plate, a plurality of photovoltaic chips and a packaging layer which are arranged in sequence; wherein,
one side of the transparent front plate, which is close to the packaging layer, is a plane, and one side of the transparent front plate, which is far away from the packaging layer, is provided with a plurality of convex lens structures which are arranged in one-to-one correspondence with the plurality of photovoltaic chips; the convex lens structure is used for converging light rays to irradiate the corresponding photovoltaic chip.
2. The photovoltaic module according to claim 1, wherein the photovoltaic chip is a strip-shaped photovoltaic chip, the convex lens structure is a plano-convex cylindrical lens, and the strip-shaped photovoltaic chip and the plano-convex cylindrical lens extend in the same direction.
3. The photovoltaic module according to claim 2, wherein the width of the plano-convex cylindrical lenses is larger than that of the strip-shaped photovoltaic chips, and a plurality of the plano-convex cylindrical lenses are continuously arranged without intervals.
4. The photovoltaic module according to claim 2, wherein the width of the plano-convex cylindrical lenses is larger than that of the strip-shaped photovoltaic chips, and the plurality of plano-convex cylindrical lenses are arranged in sequence at set intervals.
5. The photovoltaic module of claim 2, wherein the strips of photovoltaic chips range in width from 2mm to 20 mm; the width range of the plano-convex cylindrical lens is 4mm to 40 mm.
6. The photovoltaic module of any of claims 1 to 5, wherein the duty cycle of the photovoltaic chip on the transparent front sheet is 1:1 to 1: 2.
7. The photovoltaic module of claim 1 wherein the encapsulant layer is a PET encapsulant layer.
8. The photovoltaic module of claim 1, wherein the transparent front sheet comprises an optical glass transparent front sheet, a PMMA transparent front sheet, or a PC transparent front sheet.
9. The photovoltaic module of claim 1, wherein the encapsulant layer is a transparent encapsulant layer or an opaque encapsulant layer.
10. A photovoltaic curtain wall, characterized in that a photovoltaic module according to any one of claims 1 to 9 is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821347380.6U CN209216992U (en) | 2018-08-21 | 2018-08-21 | A kind of photovoltaic module and photovoltaic curtain wall |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821347380.6U CN209216992U (en) | 2018-08-21 | 2018-08-21 | A kind of photovoltaic module and photovoltaic curtain wall |
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| CN209216992U true CN209216992U (en) | 2019-08-06 |
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| CN201821347380.6U Expired - Fee Related CN209216992U (en) | 2018-08-21 | 2018-08-21 | A kind of photovoltaic module and photovoltaic curtain wall |
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| Country | Link |
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