CN212323010U - Colored photovoltaic module and photovoltaic system - Google Patents

Colored photovoltaic module and photovoltaic system Download PDF

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Publication number
CN212323010U
CN212323010U CN202020775737.1U CN202020775737U CN212323010U CN 212323010 U CN212323010 U CN 212323010U CN 202020775737 U CN202020775737 U CN 202020775737U CN 212323010 U CN212323010 U CN 212323010U
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light
photovoltaic module
colored
heat
photovoltaic
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王永飞
张愿成
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Longi Solar Technology Co Ltd
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Xian Longi Green Energy Architecture Technology Co Ltd
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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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/60—Planning or developing urban green infrastructure
    • 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
    • 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
    • Y02B10/20—Solar thermal
    • 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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Abstract

The utility model discloses a colored photovoltaic module and photovoltaic system relates to photovoltaic building integration technical field to guarantee that colored photovoltaic module has higher generated energy and colorization visual effect, thereby satisfy BIPV and to photovoltaic module outward appearance requirement. The color photovoltaic module includes: light-transmitting cover plate, back plate, photovoltaic cell and knurling light-transmitting plate. The light-transmitting cover plate and the back plate are oppositely arranged. The photovoltaic cell is arranged between the light-transmitting cover plate and the back plate. The embossed light-transmitting plate is arranged between the light-transmitting cover plate and the photovoltaic cell. A hollow interlayer for heat insulation is formed between the light-transmitting cover plate and the embossed light-transmitting plate. The backlight surface of the light-transmitting cover plate is provided with a first colored glaze layer. The photovoltaic system comprises the color photovoltaic module provided by the technical scheme. The utility model provides a colored photovoltaic module is arranged in the building integrated photovoltaic.

Description

Colored photovoltaic module and photovoltaic system
Technical Field
The utility model relates to a photovoltaic building integration technical field especially relates to a colored photovoltaic module and photovoltaic system.
Background
The Building Integrated Photovoltaic (BIPV) technology is a technology for integrating solar Photovoltaic products on buildings. The BIPV photovoltaic module can be applied to application scenes such as photovoltaic roofs, photovoltaic curtain walls and the like.
The traditional crystal silicon photovoltaic module has single appearance color, no substantial change and no attractive decoration effect, so that when the BIPV photovoltaic module is applied to photovoltaic systems such as a photovoltaic curtain wall, the overall design and the appearance of a building are influenced, and the aesthetic requirement of the BIPV cannot be met.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a colored photovoltaic module and photovoltaic system to guarantee that colored photovoltaic module has higher generated energy and colorization visual effect, thereby satisfy BIPV and to photovoltaic module outward appearance requirement.
In a first aspect, the present invention provides a color photovoltaic module. This colored photovoltaic module includes: light-transmitting cover plate, back plate, photovoltaic cell and knurling light-transmitting plate. The light-transmitting cover plate and the back plate are oppositely arranged. The photovoltaic cell is arranged between the light-transmitting cover plate and the back plate. The embossed light-transmitting plate is arranged between the light-transmitting cover plate and the photovoltaic cell. A hollow interlayer for heat insulation is formed between the light-transmitting cover plate and the embossed light-transmitting plate. The backlight surface of the light-transmitting cover plate is provided with a first colored glaze layer.
When the technical scheme is adopted, the embossed light-passing board is arranged between the light-passing cover board and the photovoltaic cell, so that when sunlight irradiates on the colored photovoltaic module, the colored photovoltaic module realizes a colorized visual effect by means of the first colored glaze layer. By utilizing the diffuse reflection effect of the embossed light-passing board on light, the background of the color photovoltaic module formed by the back board and the photovoltaic cell can be weakened, so that the color displayed by the color photovoltaic module is high in purity, soft and fine, the sunlight irradiating the photovoltaic cell can be ensured to be uniform, and the power generation efficiency of the photovoltaic cell is improved. And the colorization of the colorful photovoltaic module is realized by means of the first colorful glaze layer, so that the photovoltaic performance of the photovoltaic cell is fully exerted under the condition of not limiting the selection range of the photovoltaic cell, and the power generation capacity is improved. Therefore, the utility model provides a colored photovoltaic module has higher generated energy and colorization visual effect to satisfy BIPV and require photovoltaic module outward appearance, make colored photovoltaic module and building perfect fusion.
In addition, a hollow interlayer for heat insulation is formed between the light-transmitting cover plate and the embossed light-transmitting plate, so that the color photovoltaic module has high heat insulation performance. At this moment, colored photovoltaic module not only can play electricity generation and decorative effect, can also play thermal-insulated effect, uses as the building materials that keeps warm, consequently, the utility model provides a colored photovoltaic module can satisfy various application scenes such as photovoltaic curtain, photovoltaic roof and to the requirement of heat preservation performance.
In a possible implementation manner, the light-facing surface of the embossed light-transmitting plate is provided with a second colored glaze layer. At the moment, the embossed light-transmitting plate not only has the functions of light uniformization and hollow interlayer construction, but also can further improve the colorized visual effect of the colorful photovoltaic module. In addition, a hollow interlayer for heat insulation is formed between the light-transmitting cover plate and the photovoltaic cell, so that when the second colored glaze layer is positioned on the light-facing surface of the embossed light-transmitting plate, the second colored glaze layer is positioned in the hollow interlayer. In this case, the second colored glaze layer is not worn by other members, and is excellent in durability and reliability.
In one possible implementation, the first colored glaze layer and/or the second colored glaze layer may be a planar colored glaze layer. At the moment, the color photovoltaic module can realize the colorization effect with high purity and bright color by virtue of the planar colored glaze layer.
In a possible implementation manner, the first colored glaze layer and/or the second colored glaze layer comprises a plurality of colored glaze points distributed in a lattice shape.
When the technical scheme is adopted, the light reflected by each colored glaze point is a basic color light beam containing a plurality of colored light beams (the basic color light beam is a light beam passing through the space between two adjacent colored glaze points, and the color of the basic color light beam is determined according to the color of the light irradiating the colored photovoltaic module). Under the dodging action of the embossing structure of the embossing cover plate, the basic color beams and the color beams can be homogenized, so that the color uniformity, fineness and softness displayed by the color photovoltaic module are further improved. Meanwhile, when the plurality of colored glaze points are distributed on the light-transmitting plate in a lattice shape (the light-transmitting plate can be a light-transmitting cover plate and/or an embossed cover plate), gaps are formed among the plurality of colored glaze points, so that the photovoltaic cell assembly can have high light utilization rate, and the power generation efficiency of the colored photovoltaic module is improved.
In a possible implementation manner, the effective coverage area S of the first colored glaze layer on the backlight surface of the light-transmitting cover plate1＝(0.1～1)Sb，SbIs the backlight surface area of the light-transmitting cover plate. At the moment, the first colored glaze layer can reduce light loss, so that the colored photovoltaic module not only has a good colorization effect, but also has higher power generation efficiency.
Similarly, the effective coverage area S of the second colored glaze layer on the light facing surface of the embossed light-transmitting plate2＝(0.1～1)St，StIs the area of the light facing surface of the embossed light-transmitting sheet. At the moment, the second colored glaze layer can reduce light loss, so that the colored photovoltaic module not only has a good colorization effect, but also has higher power generation efficiency.
In one possible implementation, the light-transmitting cover plate is an embossed light-transmitting cover plate. The embossed light-transmitting cover plate can further weaken the background of the colored photovoltaic module by virtue of an embossed structure of the embossed light-transmitting cover plate, so that the color purity and the fineness displayed by the colored photovoltaic module are higher.
In one possible implementation manner, the embossed light-transmitting plate is a single-sided embossed light-transmitting plate or a double-sided embossed light-transmitting plate. The double-sided embossing light-transmitting plate can further weaken the background of the color photovoltaic assembly by virtue of the double-sided embossing structure of the double-sided embossing light-transmitting plate, so that the color purity and the fineness displayed by the color photovoltaic assembly are higher.
In one possible implementation, the hollow interlayer is a vacuum interlayer. At the moment, the inner space of the hollow interlayer is not filled with gas, the heat insulation effect is high, and the color photovoltaic module can be suitable for BIPV scenes with higher heat insulation requirements.
In a possible implementation manner, the hollow interlayer is filled with heat insulation gas. At the moment, the heat insulation gas filled in the hollow interlayer can not only play a heat insulation role, but also play a certain supporting role on the light-transmitting cover plate, and reduce the possibility of breakage of the light-transmitting cover plate caused by overlarge pressure difference between the inside and the outside. And when the hollow interlayer is filled with the heat insulation gas, the heat insulation gas can reflect and refract light rays so as to further improve the color purity displayed by the color photovoltaic module and ensure that the color is fine, smooth and soft.
In a possible implementation, the heat insulating gas may be air or an inert gas. When the heat insulation gas is air, heat insulation and light uniformization can be realized at lower cost. When the heat insulation gas is inert gas, heat insulation and light uniformization are simultaneously realized. Moreover, the possibility that the first colored glaze layer (and the second colored glaze layer when the embossed light-transmitting plate is provided with the second colored glaze layer) is eroded enables the first colored glaze layer (and the second colored glaze layer when the embossed light-transmitting plate is provided with the second colored glaze layer) to have more lasting color retention capability, so that the color reliability and stability exhibited by the colored photovoltaic module are further improved.
In one possible implementation, the back plate is a heat-conductive back plate. At the moment, the heat-conducting back plate can lead out heat which cannot be dissipated timely inside the color photovoltaic assembly, the internal temperature of the color photovoltaic assembly is reduced, the problems that the internal structure of the color photovoltaic assembly is aged and the power generation capacity of a photovoltaic cell is reduced due to overhigh temperature are solved, and the service life of the color photovoltaic assembly is prolonged.
In one possible implementation manner, the heat-conductive back plate is a metal back plate. At the moment, the metal back plate is used as a good thermal conductor, and heat which cannot be dissipated in time in the color photovoltaic module can be timely led out.
In one possible implementation manner, the heat-conductive back plate includes a back substrate and a heat-conductive layer wrapped on the back substrate. At the moment, the heat which cannot be dissipated timely inside the color photovoltaic module can be timely led out through the heat conducting layer.
In a possible implementation manner, the heat conduction layer is a metal heat conduction layer and/or a graphene heat conduction layer.
In a possible implementation manner, the color photovoltaic module further includes a heat dissipation mechanism for dissipating heat of the heat-conductive back plate. The heat dissipation mechanism is fixed on the side wall of the heat conduction type back plate. At this moment, the heat conducted out by the heat-conducting back plate can be released in time by utilizing the heat-radiating mechanism. And when the heat dissipation mechanism is fixed on the side wall of the heat-conducting back plate, the heat dissipation mechanism extends from the side face of the color photovoltaic module, so that the color photovoltaic module can be still mounted on a flat surface.
In one possible implementation manner, the heat dissipation mechanism comprises a metal heat dissipation pipe assembly and/or a phase-change heat dissipation pipe assembly.
When the heat dissipation mechanism is a metal heat dissipation pipe assembly, the heat conducted by the heat conduction type backboard can be dissipated in time by utilizing the metal heat dissipation pipe assembly.
When the heat dissipation mechanism is the phase-change heat dissipation pipe assembly, the principle that the phase-change substance in the phase-change heat dissipation pipe assembly changes phase under the cold and hot conditions can be utilized to dissipate heat conducted by the heat-conducting back plate in time.
In a possible implementation manner, the heat dissipation mechanism comprises at least one heat dissipation pipe. At least one radiating pipe is fixed on the side wall of the back plate. The types of the plurality of radiating pipes can be all the same or partially the same.
When the heat dissipation mechanism is a metal heat dissipation tube assembly, the heat dissipation tube may be a metal heat dissipation tube, such as a common copper tube, an aluminum tube, etc. When the heat dissipation mechanism is a phase-change heat dissipation tube assembly, the heat dissipation tube can be a phase-change heat dissipation tube.
In a possible implementation manner, the color photovoltaic module further includes a spacer. The light-transmitting cover plate and the embossed light-transmitting plate are fixed together through a partition, and the light-transmitting cover plate, the embossed light-transmitting plate and the partition enclose a hollow interlayer. At the moment, the isolating piece can be used for ensuring that the hollow interlayer has high air tightness, and the corrosion of external water vapor to the interior of the color photovoltaic module is avoided.
In one possible implementation, the seal assembly includes an annular connector and an annular seal. The annular connecting piece connects the light-transmitting cover plate and the embossed light-transmitting plate together. The annular sealing element is arranged on the inner side of the annular connecting element.
In one possible implementation, the photovoltaic cell has a light reflecting portion. At the moment, the color photovoltaic module is easy to cause the glare problem due to the reflection of light by the light reflecting part. Based on this, this colored photovoltaic module still includes the black insulating shelter piece of suppression reflection of light portion. The black insulating shielding piece can be formed on the light reflecting part, so that the problem of glare of the color photovoltaic module caused by the light reflecting part is reduced or eliminated, and the visual effect of the color photovoltaic module is improved.
In one possible implementation manner, the light reflecting portion is at least one of a gate line, an interconnection bar, and a bus bar.
In one possible implementation, the black insulating barrier may be a finished black insulating strip such as an EPE composite film (EVA/PET/EVA) that can perform insulating properties. Of course, the black insulating barrier can also be a black insulating adhesive strip to simplify the assembly process of the photovoltaic cell assembly.
In a second aspect, the present invention also provides a photovoltaic system. The photovoltaic system comprises the color photovoltaic module described in the first aspect or any possible implementation manner of the first aspect.
In a possible implementation manner, the photovoltaic system further comprises a heat utilization device. The heat utilization equipment is used for recovering heat emitted by the color photovoltaic assembly, achieves the purposes of energy conservation and emission reduction, and reduces the possibility of fire.
In a possible implementation manner, the heat utilization device includes at least one of a thermoelectric device, a heat accumulator, a heater, and an air conditioner, but is not limited thereto.
The benefits of the photovoltaic system described in the second aspect or any possible implementation may refer to the benefits of the colored photovoltaic module described in the first aspect or any possible implementation of the first aspect.
Drawings
The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:
fig. 1 is a first schematic structural diagram of a color photovoltaic module according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram ii of a color photovoltaic module according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram three of a color photovoltaic module according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a color photovoltaic module according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a color photovoltaic module according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram six of a color photovoltaic module according to an embodiment of the present invention;
fig. 7 is an assembly schematic view of the heat conductive back plate and the heat dissipation mechanism in the embodiment of the present invention;
fig. 8 is a schematic structural diagram of a photovoltaic system in which a photovoltaic curtain wall and a heat accumulator are cooperatively used according to an embodiment of the present invention.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" 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 specifically limited otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
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; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Fig. 1 illustrates a first structural schematic diagram of a color photovoltaic module according to an embodiment of the present invention. As shown in fig. 1, the embodiment of the present invention provides a color photovoltaic module which is different according to the installation method, and can be applied to various BIPV application scenarios such as photovoltaic curtain wall and photovoltaic roof, but not limited thereto.
As shown in fig. 1, the embodiment of the present invention provides a color photovoltaic module 100 including: a light-transmissive cover plate 110, a back plate 120, a photovoltaic cell 130, and an embossed light-transmissive plate 140. The light transmissive cover plate 110 and the back plate 120 are disposed opposite to each other. The photovoltaic cell 130 is disposed between the light transmissive cover sheet 110 and the back sheet 120. An embossed light-transmitting sheet 140 is provided between the light-transmitting cover sheet 110 and the photovoltaic cell 130. A hollow interlayer for heat insulation is formed between the light-transmitting cover plate 110 and the embossed light-transmitting plate 140. It is understood that the light transmissive cover plate 110 may be bonded to the photovoltaic cell 130 using various bonding substances, and the back plate 120 may also be bonded to the photovoltaic cell 130 using various bonding substances. Such bonding substances include, but are not limited to, EVA (ethylene-vinyl acetate copolymer).
As shown in fig. 1, a first colored glaze layer 111 is disposed on a backlight surface of the transparent cover plate 110. It should be understood that the surface of the light-transmissive cover plate 110 facing the hollow interlayer CA is the backlight surface of the light-transmissive cover plate 110. At this time, the first colored glaze layer 111 faces the hollow interlayer CA, and the first colored glaze layer 111 is surrounded by the environment of the hollow interlayer CA. At this time, the hollow interlayer CA can prevent the first colored glaze layer 111 from being eroded by the external environment (e.g., the first colored glaze layer 111 is eroded by external ultraviolet rays, water vapor, etc.), thereby improving the stability and reliability of the first colored glaze layer 111 and reducing the possibility of color fading of the first colored glaze layer 111 due to the increase of the service life.
As shown in fig. 1, the thickness of the first colored glaze layer 111 is not limited as long as the light-transmitting effect is achieved. The first colored glaze layer 111 may contain one color or a plurality of colors. These colors may include, but are not limited to, at least one of yellow, blue, red, black, and white. When the first colored glaze layer 111 contains one color, the first colored glaze layer 111 can make the colored photovoltaic device 100 display a pure color. When the first colored glaze layer 111 contains at least two colors, the matching of the at least two colors can make human eyes feel pure color. The embossed structure (defined as the first embossed structure 141) of the embossed light-transmitting sheet 140 diffusely reflects light and uniformly diffuses light.
As shown in fig. 1, from the perspective of colorization of the color photovoltaic module 100, when sunlight is irradiated on the color photovoltaic module 100, the first color glaze layer 111 can colorize the color photovoltaic module 100. Meanwhile, by utilizing the diffuse reflection effect of the embossed light-transmitting plate 140 on light, the background image of the color photovoltaic module formed by the back plate 120 and the photovoltaic cell 130 can be atomized, the interference of the background image of the color photovoltaic module is reduced, the color displayed by the color photovoltaic module 100 is uniform, high in purity, soft and fine, the sunlight irradiated on the photovoltaic cell 130 can be ensured to be uniform, and the power generation efficiency of the photovoltaic cell 130 is further improved. By verification, when the colored photovoltaic module 100 is observed at a distance (such as 3m and 5m) beyond 2 m, the pure colored photovoltaic module 100 can be seen, and the color is uniform, soft and fine.
As shown in fig. 1, the first colored glaze layer 111 can realize colorization of the colored photovoltaic module 100 from the selection range of the photovoltaic cell 130, so that the photovoltaic cell 130 does not need to be colorized. In this case, the photovoltaic cell 130 has a relatively wide selection range, for example: the photovoltaic cell 130 can be a variety of conventional photovoltaic cells, including but not limited to crystalline silicon, amorphous silicon, thin film or heterojunction cells, and the like. It should be understood that the process of colorizing the photovoltaic cell 130 is substantially a process of adjusting the thickness of the silicon nitride as an anti-reflective film in the photovoltaic cell 130, and therefore, the colorized photovoltaic module 100 has a large influence on the light utilization rate of the photovoltaic cell 130, and the power generation amount of the photovoltaic cell 130 is reduced. Therefore, when the first colored glaze layer 111 is arranged on the backlight surface of the light-transmitting cover plate 110, the photovoltaic cell 130 does not need to be colored, and the photovoltaic cell 130 can be ensured to have high power generation capacity.
As shown in fig. 1, in terms of the thermal insulation performance of the color photovoltaic module 100, the embossed light-transmitting plate 140 and the light-transmitting cover plate 110 may also form a hollow interlayer CA for thermal insulation. The embossed light-transmitting sheet 140 can now not only be dimmed but also used to build the hollow sandwich CA. The hollow interlayer CA can ensure that the color photovoltaic module 100 has higher heat insulation performance, so that the color photovoltaic module 100 not only can play a role in power generation and decoration, but also can play a role in heat insulation and can be used as a heat-insulation building material. For example: when the colored photovoltaic module 100 is applied to application scenes such as a photovoltaic curtain wall and a photovoltaic roof, the colored photovoltaic module 100 can meet the requirements of various application scenes such as the photovoltaic curtain wall and the photovoltaic roof on the heat preservation performance.
From top to bottom, in the colored photovoltaic module 100 provided by the embodiment of the utility model, knurling light-passing board 140 is established between printing opacity apron 110 and photovoltaic cell 130 for when the sunlight shines at colored photovoltaic module 100, colored photovoltaic module 100 realizes the colorization visual effect with the help of the first colored glaze layer 111 that printing opacity apron 110's shady surface was equipped with. By utilizing the diffuse reflection effect of the embossed light-transmitting plate 140 on light, the background image of the color photovoltaic module formed by the back plate 120 and the photovoltaic cell 130 can be weakened, so that the color displayed by the color photovoltaic module 100 is high in purity, soft and fine, and the sunlight irradiating the photovoltaic cell 130 can be ensured to be uniform, thereby improving the power generation efficiency of the photovoltaic cell 130. And the colorization of the color photovoltaic module 100 is realized by the first color glaze layer 111, so that the photovoltaic performance of the photovoltaic cell 130 is fully exerted and the power generation capacity is improved under the condition of not limiting the selection range of the photovoltaic cell 130. Therefore, the embodiment of the utility model provides a colored photovoltaic module 100 has higher generated energy and colorization visual effect to satisfy BIPV and to photovoltaic module outward appearance requirement, make colored photovoltaic module 100 and building perfect fusion. In addition, the hollow interlayer CA for thermal insulation is formed between the light-transmitting cover plate 110 and the embossed light-transmitting plate 140, so that the color photovoltaic module 100 has high thermal insulation performance. At this moment, colored photovoltaic module 100 not only can play electricity generation and decorative effect, can also play thermal-insulated effect, uses as the heat preservation building materials, consequently, the embodiment of the utility model provides a colored photovoltaic module 100 can satisfy various application scenes such as photovoltaic curtain, photovoltaic roof and the requirement to heat preservation performance.
As a possible implementation manner, in order to further improve the colorization effect, fig. 2 illustrates a structural schematic diagram two of the color photovoltaic module provided by an embodiment of the present invention. As shown in FIG. 2, the embossed transparent substrate 140 is provided with a second colored glaze layer 142. At this time, the embossed light-transmitting plate 140 not only has the functions of light uniformizing and constructing the hollow interlayer CA, but also can further improve the colorized visual effect of the color photovoltaic module 100.
As shown in fig. 2, the second colored glaze layer 142 provided on the embossed light-transmitting plate 140 may be the same color as or different from the first colored glaze layer 111. When the colors of the second colored glaze layer 142 and the first colored glaze layer 111 of the embossed transparent plate 140 are the same, the color displayed by the photovoltaic module 100 is more vivid, and when the colors of the second colored glaze layer 142 and the first colored glaze layer 111 of the embossed transparent plate 140 are different, the colors of the second colored glaze layer 142 and the first colored glaze layer 111 of the embossed transparent plate 140 can be matched to make human eyes feel pure color.
As shown in fig. 2, the second colored glaze layer 142 may be disposed on a light-facing surface of the embossed transparent plate 140 (as shown in fig. 2), or may be disposed on a back-facing surface of the embossed transparent plate 140 (not shown in fig. 2). The surface of the embossed light-transmitting sheet 140 facing the hollow interlayer CA is defined herein as the light-facing surface of the embossed light-transmitting sheet 140, and the surface of the embossed light-transmitting sheet 140 facing away from the hollow interlayer CA is the backlight surface of the embossed light-transmitting sheet 140.
When the second colored glaze layer 142 is disposed on the light-facing surface of the embossed light-transmitting plate 140, the hollow interlayer CA for heat insulation is formed between the light-transmitting cover plate 110 and the photovoltaic cell 130, so that the second colored glaze layer 142 is disposed in the hollow interlayer CA, and therefore, the second colored glaze layer 142 is not worn by other components, and has good durability and reliability, thereby ensuring that the colorization effect of the colored photovoltaic module 100 is more durable and stable.
As shown in fig. 1 and 2, one or both of the first colored glaze layer 111 and the second colored glaze layer 112 may be present in a planar form or in a lattice form. The following is described separately for the two forms of presence of the coloured glaze layer.
As shown in fig. 1 and 2, when the first colored glaze layer 111 is present in the light-transmitting cover plate 110 in a planar form, the first colored glaze layer 111 is a planar colored glaze layer. When the second colored glaze layer 142 exists in the embossed transparent plate 140 in a planar form, the second colored glaze layer 142 is a planar colored glaze layer.
As shown in fig. 1 and 2, when the first colored glaze layer 111 is a planar colored glaze layer, the colored photovoltaic module 100 can achieve a high-purity and vivid colorization effect by the planar colored glaze layer. The analysis of the second colored glaze layer 142 can refer to the analysis of the first colored glaze layer 111, and will not be described in detail herein.
Fig. 3 illustrates a third schematic structural diagram of the color photovoltaic module according to an embodiment of the present invention. Fig. 4 illustrates a fourth schematic structural diagram of the color photovoltaic module according to an embodiment of the present invention. As shown in fig. 3 and 4, when the first colored glaze layer 111 exists in a lattice shape in the transparent cover plate 110, the first colored glaze layer 111 includes a plurality of colored glaze dots distributed in a lattice shape on the back surface of the transparent cover plate 110 (the plurality of colored glaze dots included in the first colored glaze layer 111 may form a first glaze dot lattice). When the second colored glaze layer 142 exists in a lattice shape in the embossed light-transmitting plate 140, the second colored glaze layer 142 includes a plurality of colored glaze dots distributed in a lattice shape on the light-facing surface of the embossed light-transmitting plate 140 (the plurality of colored glaze dots included in the second colored glaze layer 142 may form a second glaze dot lattice).
As shown in fig. 3 and 4, regardless of the first colored glaze layer 111 or the second colored glaze layer 142, a plurality of colored glaze points distributed in a lattice shape are isolated from each other, and a gap is formed between two adjacent colored glaze points. Considering the colorization principle of the colored photovoltaic module 100 as follows: the colored glaze layer (the first colored glaze layer 111 and/or the second colored glaze layer 142) reflects colored light, so that the colored photovoltaic module 100 exhibits a colorized visual effect. Based on this, the light reflected by each colored glaze point contained in the first colored glaze layer 111 or the second colored glaze layer 142 is substantially a basic color light beam containing a plurality of colored light beams (the basic color light beam is a light beam passing through a gap between two adjacent colored glaze points, and the color of the basic color light beam is determined according to the color of the light irradiated on the color photovoltaic device 100). Under the dodging effect of the first embossing structure 141 of the embossed transparent plate 140, the basic color light beams and the color light beams can be homogenized, so as to further improve the color uniformity and the fineness and softness exhibited by the color photovoltaic module 100. Meanwhile, when the plurality of colored glaze points are distributed on the light-transmitting plate (the light-transmitting plate can be the light-transmitting cover plate 110 and/or the embossed cover plate 140) in a lattice shape, gaps are formed among the plurality of colored glaze points, so that the photovoltaic cell 130 assembly has high light utilization rate, and the power generation efficiency of the colored photovoltaic assembly 100 is improved.
The lattice arrangement mode of the first glaze point lattice and the lattice arrangement mode of the second glaze point lattice can be the same or different. When the lattice arrangement manner of the first glaze dot lattice is the same as that of the second glaze dot lattice, the first glaze dot lattice and the second glaze dot lattice may not have a one-to-one spatial projection relationship (see fig. 3), or may have a one-to-one spatial projection relationship (see fig. 4). The spatial projection relationship here means that the geometrical centers of the colored glaze dots of the first glaze dot matrix and the geometrical centers of the colored glaze dots of the second glaze dot matrix are in one-to-one correspondence with each other in the same horizontal plane (for example, the light-facing surface of the back plate 120 shown in fig. 1 to 4, that is, the surface of the back plate 120 facing the photovoltaic cell 130). Moreover, the color of the first glaze point lattice as a whole and the color of the second glaze point lattice as a whole can be the same or different, and the shapes can be the same or different.
It is understood that, as shown in fig. 1 to 4, the colors of the respective colored glaze points included in the first colored glaze layer 111 and the second colored glaze layer 142 may be completely the same or different, or may be partially the same; the pattern shape of the color glaze points can be at least one or a combination of regular shapes such as circles, squares, diamonds, triangles and the like, can also be one or a combination of irregular shapes, and can also be a pattern formed by one or a plurality of regular shapes and one or a plurality of irregular shapes.
In an alternative manner, as shown in fig. 1 to 4, in order to ensure that the color photovoltaic module 100 has high power generation efficiency and can display the visual effect of a desired color, the effective coverage area of the color glaze layers (the first color glaze layer 111 and the second color glaze layer 142) can be designed according to practical requirements.
As shown in fig. 1 to 4, the effective coverage area of the first colored glaze layer 111 refers to the contact area between the first colored glaze layer 111 and the transparent cover plate 111. For example: the effective coverage area S of the first colored glaze layer 111 on the backlight surface of the transparent cover plate 1101＝(0.1～1)Sb，SbIs the backlight area of the light-transmissive cover plate 110. At this time, the first colorThe glaze layer 111 can reduce light loss, so that the color photovoltaic module 100 not only has a good colorization effect, but also has a high power generation efficiency.
As shown in fig. 1 to 4, when the first colored glaze layer 111 covers the backlight surface of the transparent cover plate 110 with an effective area S1＝0.1SbThe first colored glaze layer 111 can satisfy the basic color requirement of the colored photovoltaic module 100, and the problem of too light color caused by too small effective coverage area of the first colored glaze layer 111 is avoided.
As shown in fig. 1 and fig. 2, when the first colored glaze layer 111 covers the backlight surface of the transparent cover plate 110 with an effective area S1＝Sb. In this case, the first colored glaze layer 111 is a planar colored glaze layer. The first colored glaze layer 111 can maximally satisfy colorization requirements of the colored photovoltaic module 100.
As shown in fig. 3 and 4, when the color photovoltaic module 100 is mainly applied to BIPV scenes with relatively high power generation requirement, S1＝0.1Sb、S1＝0.3Sb. When color photovoltaic module 100 is primarily suitable for BIPV scenes with relatively high appearance requirements, S1＝0.7Sb、S1＝0.8SbOr S1＝0.9Sb. When the color photovoltaic module 100 is mainly applied to a BIPV scene with higher requirements on appearance and power generation amount, S1＝0.5SbOr S1＝0.7Sb。
As shown in fig. 1 to 4, the effective coverage area of the second colored glaze layer 142 refers to the area of the second colored glaze layer 142 actually contacting the embossed transparent substrate 140. For example: effective coverage area S of the second colored glaze layer 142 on the light-facing surface of the embossed light-transmitting plate 1402＝(0.1～1)St，StTo emboss the light-facing surface area of the light-transmitting sheet 140. At this time, the second color glaze layer 142 can reduce light loss, so that the color photovoltaic module 100 not only has a good colorization effect, but also has a high power generation efficiency.
When the second colored glaze layer 142 effectively covers the area S on the light-facing surface of the embossed light-transmitting plate 1402＝0.1StThe first colored glaze layer 111 and the second colored glaze layer 142 are combinedThe basic color requirement of the color photovoltaic module 100 can be further satisfied, and the problem of too light color caused by too small effective coverage area of the first colored glaze layer 111 and the second colored glaze layer 142 is not solved.
As shown in FIGS. 1 and 2, when the second colored glaze layer 142 covers the light-facing surface of the embossed light-transmitting plate 140, the effective coverage area S2＝StThe second colored glaze layer 142 is a planar colored glaze layer. As for the effect, reference may be made to the related description of the light-transmissive cover plate 110.
As shown in fig. 3 and 4, when the color photovoltaic module 100 is mainly applied to BIPV scenes with relatively high power generation requirement, S2＝0.1St、S2＝0.3St. When color photovoltaic module 100 is primarily suitable for BIPV scenes with relatively high appearance requirements, S2＝0.7St、S2＝0.8StOr S2＝0.9St. When the color photovoltaic module 100 is mainly applied to a BIPV scene with higher requirements on appearance and power generation amount, S2＝0.5StOr S2＝0.7St。
In an alternative manner, fig. 5 illustrates a schematic structural diagram five of a color photovoltaic module provided by an embodiment of the present invention. As shown in fig. 5, the transparent cover plate 110 is an embossed transparent cover plate. The embossed transparent cover plate can further atomize the background image of the colored photovoltaic module 100 by virtue of the embossed structure (hereinafter, referred to as the second embossed structure 112) of the embossed transparent cover plate, so that the color interference of the colored photovoltaic module 100 on the colored photovoltaic module 100 is reduced, the color purity and the fineness of the colored photovoltaic module 100 are higher, and the background image formed by the photovoltaic cell 130 and the back plate 120 is not sharp in the colored photovoltaic module 100.
As shown in fig. 5, in order to avoid the second embossing structure 112 of the embossed transparent cover plate from affecting the first colored glaze layer 111, the second embossing structure 112 is located on the light facing surface of the embossed transparent cover plate. At this time, the embossed transparent cover plate can not only ensure effective light uniformization of light, but also fully exert the colorization effect of the first colored glaze layer 111.
In an alternative, as shown in FIGS. 1-5, the embossed light-transmitting sheet 140 can be a single-sided embossed light-transmitting sheet or a double-sided embossed light-transmitting sheet (not shown). At this time, the double-sided embossed light-transmitting plate can further atomize the background image of the color photovoltaic module by virtue of the embossing structure of the double-sided embossed light-transmitting plate, so that the color interference of the background image of the color photovoltaic module on the color photovoltaic module 100 is reduced, the color purity and the fineness of the color photovoltaic module are higher, and the background image formed by the photovoltaic cell 130 and the back plate 120 is not abrupt in the color photovoltaic module.
It is understood that the embossed structure of the light-transmitting plate can be one or more than one embossed structure, whether the light-transmitting plate is single-sided embossed, double-sided embossed, or embossed. The embossing structure can be a regular structure such as a conical structure, a pyramid-shaped structure and the like, and can also be an irregular structure. The pyramid-shaped structure can be a triangular pyramid, a quadrangular pyramid, a hexagonal pyramid, or the like. It should be understood that each embossing structure may be an embossing structure with the same shape, or an embossing structure with different shapes, depending on the actual application.
As shown in fig. 1 to 5, the materials of the light-transmitting cover plate 110 and the embossed light-transmitting plate 140 may be photovoltaic glass suitable for the photovoltaic field, regardless of the materials of the light-transmitting cover plate 110 and the embossed light-transmitting plate 140. The photovoltaic glass may include, but is not limited to, patterned glass such as ultra-white patterned glass or ordinary patterned glass. The photovoltaic glass may include, but is not limited to, a drawn flat glass (both grooved and non-grooved), a flat drawn flat glass, a float glass, etc., if it is processed. In the photovoltaic strengthened type, the photovoltaic glass can include unreinforced glass or strengthened glass. The tempered glass includes, but is not limited to, tempered glass such as physically tempered glass (generally, quench-tempered glass), chemically tempered glass (generally, glass treated with a chemical agent), and the like. These physically tempered glasses can be classified into tempered glasses and semi-tempered glasses according to the degree of tempering.
In one example, as shown in fig. 1-5, either the light-transmissive cover plate 110 or the embossed light-transmissive plate 140 can be colored embossed glazed glass. At this time, the colored glaze layer of the colored embossed glazed glass is formed on the glass in a sintering manner, so that the colored glaze layer has high durability, and therefore, the colored embossed glazed glass still has a good colorizing effect under the condition that the colored photovoltaic module 100 is used for a long time, so that the colorizing effect of the colored photovoltaic module 100 has high durability.
As shown in fig. 1 to 5, the light-transmitting cover plate 110 may be plated with an anti-reflection layer, or may not be plated with an anti-reflection layer. When the light-transmitting cover plate 110 is plated with an anti-reflective layer, the anti-reflective layer (not shown) may be formed on the light-facing surface of the light-transmitting cover plate 110 to improve the light utilization rate and the power generation efficiency. The surface of the light-transmitting cover plate 110 facing away from the hollow interlayer CA is the light-facing surface of the light-transmitting cover plate 110. When the light-transmitting cover plate 110 is an embossed light-transmitting cover plate, the light-facing surface of the embossed light-transmitting cover plate on which the embossed structure 112 and the antireflection layer are stacked may be determined according to the actual situation as to the vertical position relationship, and is not further limited.
As one possible implementation manner, as shown in fig. 1 to 5, the hollow interlayer CA may be a vacuum interlayer or a hollow interlayer CA filled with a heat insulating gas.
In an alternative, as shown in fig. 1 to 5, the hollow interlayer CA is a vacuum interlayer. At this moment, the inside of the hollow interlayer CA is in a vacuum environment, and the heat insulation effect is extremely high, so that the color photovoltaic module 100 is ensured to be suitable for a BIPV scene with higher heat insulation requirements.
As shown in fig. 1 to 5, a hollow interlayer CA for thermal insulation is formed between the light-transmitting cover plate 110 and the embossed light-transmitting plate 140, and the backlight surface of the light-transmitting cover plate 110 is provided with a first colored glaze layer 111, and the first colored glaze layer 111 is substantially surrounded by the hollow interlayer CA in a vacuum environment. Under the vacuum environment, the first colored glaze layer 111 is not easily corroded by the external environment, and has more lasting color retention capability, so that the color displayed by the colored photovoltaic module 100 has better reliability and stability.
As shown in fig. 2 to 5, in view of the hollow interlayer CA for thermal insulation formed between the light-transmitting cover plate 110 and the embossed light-transmitting plate 140, when the light-facing surface of the embossed light-transmitting plate 140 is provided with the second colored glaze layer 142, the second colored glaze layer 142 is substantially surrounded by the vacuum environment of the hollow interlayer CA. Under the vacuum environment, the second colored glaze layer 142 is not easily eroded by the external environment, and has a more durable color-maintaining ability, so that the color reliability and stability exhibited by the colored photovoltaic module 100 are further improved.
In an alternative, as shown in fig. 1 to 5, the hollow interlayer CA is filled with an adiabatic gas. This thermal-insulated gas can be any thermal-insulated gas that has thermal-insulated effect to guarantee that the thermal-insulated effect of cavity intermediate layer CA is better, make colored photovoltaic module 100 be applicable to the higher BIPV scene of thermal-insulated requirement. Moreover, the hollow interlayer CA is filled with heat insulation gas, and can also play a certain supporting role for the light-transmitting cover plate 110, so that the possibility of the light-transmitting cover plate 110 being broken due to overlarge pressure difference between the inside and the outside is reduced. In addition, when the hollow interlayer CA is filled with heat insulation gas, sunlight irradiates on the color photovoltaic module 100, except for the above-mentioned light homogenizing of the embossed light-transmitting plate 140 (including the embossed light-transmitting cover plate when the light-transmitting cover plate 110 is the embossed light-transmitting cover plate), the heat insulation gas filled in the hollow interlayer CA can be used for reflecting and refracting light, so that the color purity displayed by the color photovoltaic module 100 is better and is softer. Meanwhile, the heat insulation gas filled in the hollow interlayer CA is used for reflecting and refracting light, so that the uniformity of sunlight irradiating on the photovoltaic cell 130 can be improved to a certain extent, and the power generation amount of the photovoltaic cell 130 is higher.
In the process of selecting the heat insulation gas, factors in aspects of heat insulation, light reflection and refraction and the like can be considered, the selected heat insulation gas is ensured to have higher heat insulation performance and light uniformization performance, and the purpose of coordinating heat insulation and power generation is achieved
In one example, the insulating gas is air. When air is used as the heat insulation gas, heat insulation and light uniformization can be realized at lower cost.
In another example, the insulating gas may include, but is not limited to, inert gases such as nitrogen, argon, and the like, where inert gas refers to a gas that does not substantially adversely affect glass life and performance. When the inert gas is used as the heat insulation gas, the purposes of heat insulation and light uniformization can be simultaneously realized.
As shown in fig. 1 to 5, a hollow interlayer CA for thermal insulation is formed between the light-transmitting cover plate 110 and the embossed light-transmitting plate 140, and the backlight surface of the light-transmitting cover plate 110 is provided with a first colored glaze layer 111, and the first colored glaze layer 111 is substantially surrounded by the inert gas inside the hollow interlayer CA. Under the enclosure of the inert gas, the inert gas may reduce the possibility of the first colored glaze layer 111 being eroded, so that the first colored glaze layer 111 has a more durable color-retaining ability, and thus, the color reliability and stability exhibited by the colored photovoltaic module 100 are further improved.
As shown in fig. 2 to 5, in view of the hollow interlayer CA for heat insulation formed between the light-transmitting cover plate 110 and the embossed light-transmitting plate 140, when the light-facing surface of the embossed light-transmitting plate 140 is provided with the second colored glaze layer 142, the second colored glaze layer 142 is substantially surrounded by the vacuum environment of the hollow interlayer CA. Under the vacuum environment, the second colored glaze layer 142 is not easily eroded by the external environment, so that the second colored glaze layer 142 has more lasting color retention capability, and thus, the color reliability and stability exhibited by the colored photovoltaic module 100 are further improved.
In an alternative, as shown in fig. 1 to 5, the color photovoltaic module 100 further includes a spacer 150. The light-transmissive cover plate 110 and the embossed light-transmissive plate 140 are secured together by spacers 150. At this time, the light-transmitting cover plate 110, the embossed light-transmitting plate 140 and the spacer 150 enclose a hollow interlayer CA. At this time, the spacer 150 can ensure that the hollow interlayer CA has a high hermetic seal, so as to prevent the corrosion of external water vapor to the interior of the color photovoltaic module 100.
As shown in fig. 1 to 5, the spacer 150 may include an annular coupling member 151 and an annular sealing member 152. The annular connector 151 described above can connect the light-transmissive cover 110 and the embossed light-transmissive plate 140 together. The annular sealing member 152 is disposed inside the annular connecting member 151, so that the annular sealing member 152 can seal the hollow gap, and prevent external water vapor from entering the hollow interlayer CA through the gap between the annular connecting member 151 and the light-transmitting cover plate 110 and the embossed light-transmitting plate 140.
In practical applications, as shown in fig. 1 to 5, the annular connecting member 151 can ensure that a gap is formed between the light-transmitting cover plate 110 and the embossed light-transmitting plate 140, so that the hollow interlayer CA formed by the light-transmitting cover plate 110 and the embossed light-transmitting plate 140 has good structural stability with the aid of the spacer 150. The annular connector 151 may be an annular metal spacer. The annular metal parting strip can be a metal parting strip made of single metal such as copper, iron and the like, and can also be an annular metal parting strip made of metal alloy such as copper-zinc alloy, titanium alloy and the like. It should be understood that the annular metal spacer may be made of other possible materials, which are not listed here.
It should be noted that, as shown in fig. 1 to 5, the annular connecting member 151 can fix the light-transmitting cover plate 110 and the embossed light-transmitting plate 140 together by various possible fixing structures. The fixing structure may be a rivet structure, a snap structure, etc., but is not limited thereto. The annular seal 152 may be an elastomeric seal. The elastic sealing element can be a sealing element formed by high-barrier sealant, thermosetting glue and other colloids, and can also be an isolation gasket and the like.
As a possible implementation manner, fig. 6 illustrates a schematic structural diagram six of the color photovoltaic module provided by an embodiment of the present invention. As shown in fig. 6, for the photovoltaic Cell 130 shown in fig. 1 to 5, the photovoltaic Cell 130 may be composed of a plurality of Cell strings Cell in which bus bars are electrically connected together. The main grid lines of the respective cells included in each Cell string Cell may be electrically connected together by an interconnection bar. It should be understood that the electrical connection of the bus bars and the interconnection bars can be parallel connection or series connection, and is not limited herein, particularly based on the actual circuit diagram of the photovoltaic cells 130.
As shown in fig. 6, during the use of the color photovoltaic module 100, the photovoltaic cells 130 reflect light seriously, which not only affects the color development effect, but also causes the glare problem. Based on this finding, the photovoltaic cell 130 described above has a light reflecting portion. The color photovoltaic module 100 further includes a black insulating barrier that suppresses reflection of light by the light reflecting portion. The black insulating barrier may be formed on the light reflecting portion so that the black insulating barrier may be fused with the photovoltaic cell 130 to reduce unwanted reflections. Thereby reducing or eliminating the glare problem of the color photovoltaic module 100 caused by the light reflecting part and improving the visual effect of the color photovoltaic module 100.
In practical application, as shown in fig. 6, the black insulating barrier may be a black insulating strip made of black insulating materials such as the foregoing EPE composite film, so as to reduce the glare problem of the color photovoltaic module 100 caused by the reflection of light from the photovoltaic cell 130, and improve the visual experience of the user. Of course, the black insulating mask may be formed on the back substrate by using a film forming apparatus or a spin coating process. The black insulating shielding piece can also be a black insulating bonding strip, so that the insulating shielding strip can be directly attached to the light reflecting part in a bonding mode, and the assembly process of the color photovoltaic module 100 is simplified.
It is understood that, as shown in fig. 6, the light reflecting portion includes, but not limited to, a grid line, an interconnection bar, a bus bar, and other structures for extracting photocurrent, and also includes a region where the light reflection of the photovoltaic cell is severe. When the light reflecting portion is the welding strips such as the interconnection strips and the bus bars, the insulating shielding portion can wrap the welding strips (such as the bus bars) respectively in a wrapping mode, so that the possibility of light reflection is reduced, meanwhile, parasitic capacitance between the welding strips (such as the bus bars) which are closer in distance is reduced, interference of the parasitic capacitance on photocurrent transmitted by the welding strips (such as the bus bars) is lower, and the stability of the photocurrent transmitted by the welding strips is improved.
As a possible implementation manner, as shown in fig. 6, in order to encapsulate the photovoltaic cells 130 shown in fig. 1 to 5, the color photovoltaic module 100 may further include an encapsulation layer 160 encapsulating the photovoltaic cells 130. At this time, the encapsulation layer 160 is disposed between the embossed light-transmissive plate 140 and the back sheet 120, such that the encapsulation layer 160 is bonded to the embossed light-transmissive plate 140 and the back sheet 120, respectively, such that the photovoltaic cell 130 is encapsulated between the embossed light-transmissive plate 140 and the back sheet 120 by the encapsulation layer 160.
In an alternative, as shown in fig. 6, the encapsulation layer 160 may be regarded as two encapsulation layers, and the photovoltaic cell 130 is disposed between the two encapsulation layers, so that the photovoltaic cell 130 can be encapsulated by the encapsulation layers, in view of the thin thickness of the photovoltaic cell 130. The color of the encapsulation layer may be selected according to practical requirements, and is not limited. For example: in order to increase the colorization effect, the encapsulation layer may be set as a color encapsulation layer under the condition that the light loss of the color photovoltaic device 100 is low, so that the color exhibited by the color photovoltaic device 100 is bright.
As shown in fig. 6, the encapsulation layer 160 may include, but is not limited to, EVA encapsulation layer, Polyolefin elastomer (POE) encapsulation layer, polyvinyl butyral (PVB) encapsulation layer, Thermoplastic Polyolefin (TPO) encapsulation layer, SGP (copolymer of ethylene and methacrylate, also called ionic film) encapsulation layer, Thermoplastic polyurethane elastomer (TPU) encapsulation layer, and other resin encapsulation layers.
In an alternative, the back-plate 120 shown in fig. 1-6 may be replaced with a thermally conductive back-plate 120D shown in fig. 7. With the thermally conductive backsheet 120D as the backsheet 120 of the color photovoltaic module 100, the heat inside the color photovoltaic module 100 can be conducted away through the rear end (the backsheet 120 can be regarded as the rear end), so that the internal temperature of the color photovoltaic module 100 is reduced to be within the normal range. At this moment, the encapsulation layer in the colored photovoltaic module 100 can not be aged due to long-term overheating, so that the colored photovoltaic module 100 has a longer service life, and the service life of photovoltaic systems such as a photovoltaic curtain wall and a photovoltaic roof is ensured. In addition, the photovoltaic performance of the photovoltaic cell 130 can be fully exerted at normal temperature, so that the photovoltaic cell 130 has high power generation capacity, and the possibility of power generation capacity reduction caused by over-high temperature is reduced.
For example, the heat conductive back plate 120D may be a metal back plate or a non-metal back plate. Any material that may be used as the back plate may be suitable for the thermally conductive back plate.
In one example, when the thermal conductive backplate 120D is a metal backplate, the material of the metal backplate includes, but is not limited to, silver, copper, and aluminum, and may be various alloys. This is not a list.
In another example, when the thermal conductive back plate 120D is a non-metal back plate, the non-metal back plate can be a graphite back plate, an organic thermal conductive back plate made of a thermal conductive polymer material.
Except that the back plates made of different materials are selected as the heat-conducting back plates, the structure of the back plates can be improved to form the heat-conducting back plate 120D. For example: the thermally conductive back-plate 120D may also include a back substrate and a thermally conductive layer wrapped around the back substrate. At the moment, when the internal temperature of the color photovoltaic module is too high, the heat can be conducted out by utilizing the heat conducting layer wrapped on the back substrate so as to reduce the internal temperature of the color photovoltaic module.
In order to further derive heat, fig. 7 illustrates an assembly schematic diagram of the heat-conducting back plate and the heat dissipation mechanism in the embodiment of the present invention. When the back sheet 120 included in the color photovoltaic module 100 shown in fig. 1 to 6 is the thermal conductive back sheet 120D shown in fig. 7, the color photovoltaic module 100 shown in fig. 1 to 6 further includes a heat dissipation mechanism 170 for dissipating heat from the thermal conductive back sheet. The heat dissipation mechanism 170 is fixed on the sidewall of the heat conductive back plate 120D. At this time, the heat dissipation mechanism 170 can be used to timely release the heat conducted by the heat conductive back plate.
As shown in fig. 7, in terms of the structure of the heat dissipation mechanism 170, the heat dissipation mechanism 170 includes at least one heat dissipation pipe. At least one heat dissipation pipe is fixed to a sidewall of the heat conductive type back plate 120D. When the number of the heat dissipation pipes is plural, the plural heat dissipation pipes are uniformly fixed on the sidewall of the heat conductive type back plate 120D around the circumference of the heat conductive type back plate 120D. The types of the plurality of radiating pipes can be all the same or partially the same.
From the installation manner of the heat dissipation mechanism, the heat dissipation pipes can be uniformly bonded to the side wall of the heat conductive back plate 120D by using heat conductive glue around the circumference of the heat conductive back plate 120D. The plurality of heat dissipation pipes may also be uniformly fixed to the sidewall of the heat conductive back plate 120D around the circumference of the heat conductive back plate 120D by using a connection structure.
For example: the plurality of radiating pipes are uniformly fixed on the side wall of the heat-conducting back plate in a bolt fixing mode around the circumferential direction of the heat-conducting back plate 120D.
Another example is: a plurality of mounting holes may be formed in the sidewall of the heat conductive backplate 120D and evenly distributed around the circumference of the heat conductive backplate 120D. The openings of the mounting holes are located on the side walls of the heat conductive back plate 120D. At this time, each heat dissipation tube is installed in the corresponding installation hole, and the fixing member can be assisted to fix, so that each heat dissipation tube is uniformly fixed on the sidewall of the heat conductive type back plate 120D around the circumference of the heat conductive type back plate 120D. In this installation manner, the contact area between the heat dissipation pipe and the heat conductive back plate can be increased by the installation hole, so as to further increase the heat dissipation speed, so that the color photovoltaic module 100 can be restored to normal temperature as soon as possible, thereby further increasing the power generation amount and the service life of the photovoltaic cell 130.
As shown in fig. 7, in view of the heat dissipation principle of the heat dissipation mechanism 170, the heat dissipation mechanism 170 may dissipate heat by heat conductor heat dissipation or phase change heat dissipation. Of course, the heat dissipation mechanism 170 can also dissipate heat by using a heat conductor and a phase change heat dissipation method.
As shown in fig. 7, when the heat dissipation mechanism 170 dissipates heat by using a heat conductor heat dissipation method, the heat dissipation mechanism 170 is a metal heat dissipation tube assembly. The heat conducted from the heat conductive back plate 120D is dissipated in time by the heat conductive property of the metal material contained in the metal heat dissipation pipe assembly. When the heat dissipation mechanism 170 includes a plurality of heat dissipation tubes, the heat dissipation tubes are metal heat dissipation tubes.
As shown in fig. 7, when the heat dissipation mechanism 170 dissipates heat in a phase-change heat dissipation manner, the heat dissipation mechanism 170 includes a phase-change heat dissipation pipe assembly. The heat conducted out by the heat-conducting backboard 120D is dissipated in time by utilizing the principle that the phase change material of the phase-change heat dissipation pipe assembly is subjected to phase change under the cold and hot conditions. When the heat dissipation mechanism comprises a plurality of heat dissipation pipes, the heat dissipation pipes are phase-change heat dissipation pipes.
As shown in fig. 7, when the heat dissipation mechanism 170 dissipates heat by using both the heat conductor and the phase-change heat dissipation method, the heat dissipation mechanism 170 includes a metal heat pipe assembly including a metal heat pipe assembly and a phase-change heat pipe assembly. At this time, the heat can be dissipated by utilizing the heat conductivity of the metal material of the metal heat conduction pipe assembly and the phase change property of the phase change material in the phase change heat dissipation pipe assembly. At this moment, when heat dissipation mechanism includes many cooling tubes, these cooling tubes include phase change cooling tube and metal cooling tube, and it is how much as to the quantity of two kinds of cooling tubes, then according to actual setting, and this place is not repeated.
The embodiment of the utility model provides an in still providing a photovoltaic system can be applied to BIPV's various scenes. For example: BIPV application scenes such as photovoltaic curtain walls and photovoltaic roofs which have high requirements on heat insulation performance.
The embodiment of the utility model provides a photovoltaic system includes the colored photovoltaic module of above-mentioned embodiment description. The number of the color photovoltaic modules can be one or multiple, and the color photovoltaic modules can be selected according to actual application scenes.
In order to fully utilize the heat emitted by the color photovoltaic module and achieve the purposes of energy conservation and emission reduction, the photovoltaic system can also comprise a heat utilization device. The heat utilization equipment can be used for recovering heat emitted by the color photovoltaic module. For example: the heat utilization equipment can be used for recovering heat emitted by the heat-conducting back plate, so that the purposes of energy conservation and emission reduction are achieved, and the possibility of fire disaster is reduced. The heat consuming device includes at least one of a thermoelectric device, a heat accumulator, and a heater, but is not limited thereto, and may be other heat consuming devices.
Fig. 8 illustrates a schematic structural diagram of a photovoltaic system in which a photovoltaic curtain wall and a heat accumulator are cooperatively used according to an embodiment of the present invention.
As shown in fig. 8, the photovoltaic curtain wall 210 in the embodiment of the present invention includes color photovoltaic modules 211 distributed in 2 columns × 3 rows. Each photovoltaic module 211 includes a backsheet that is thermally conductive. The lateral wall of each heat conduction type backplate all is fixed with 6 cooling tubes Tu along the circumference of heat conduction type backplate. The 6 heat pipes Tu are led out from the color photovoltaic module 211. Two of the 6 radiating pipes Tu led out from the color photovoltaic module are in a group and led out from four edges of the color photovoltaic module 211 respectively. For the same row of color pv modules 211, 2 heat pipes Tu led out from the lower side of the upper pv module and 2 heat pipes Tu led out from the upper side of the lower pv module can be shared. 2 radiating pipes Tu led out from the right side of the first row of color photovoltaic modules and 2 radiating pipes Tu led out from the left side of the second row of color photovoltaic modules can be shared, and unnecessary cost is reduced.
As shown in fig. 8, in order to transfer the heat collected by the heat pipe Tu led out from the 6 color photovoltaic modules 211 to the thermoelectric device, a branch-shaped heat collecting pipe 220 may be added. The heat of each heat pipe Tu is collected by the branch heat collecting pipe 220 and then supplied to the thermoelectric device 230. The thermoelectric device 230 generates electricity using the heat. The generated electric energy can be connected with the electric energy generated by the photovoltaic curtain wall in a grid mode and is used by a building where the photovoltaic curtain wall is located. Of course, the system can also be incorporated into a public power grid for use, thereby achieving the purposes of energy conservation and emission reduction.
The embodiment of the utility model provides a photovoltaic system's beneficial effect can refer to the beneficial effect of the colored photovoltaic module of the preceding description, does not do detailed description here.
In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (12)

1. A color photovoltaic module, comprising:
the backlight surface of the light-transmitting cover plate is provided with a first colored glaze layer;
the photovoltaic cell is arranged between the light-transmitting cover plate and the back plate;
the embossing light-transmitting plate is arranged between the light-transmitting cover plate and the photovoltaic cell, and a hollow interlayer for heat insulation is formed between the light-transmitting cover plate and the embossing light-transmitting plate.
2. The colored photovoltaic module according to claim 1, wherein the light facing surface of the embossed light-transmitting plate is provided with a second colored glaze layer; the first colored glaze layer and/or the second colored glaze layer comprise a plurality of colored glaze points distributed in a lattice shape.
3. The assembly according to claim 2, wherein the first colored glaze layer has an effective coverage area S on the backlight surface of the light-transmitting cover plate1＝(0.1～1)Sb，SbThe area of the backlight surface of the light-transmitting cover plate is shown; and/or the presence of a gas in the gas,
the effective coverage area S of the second colored glaze layer on the light facing surface of the embossed light-transmitting plate2＝(0.1～1)St，StIs the area of the light facing surface of the embossed light-transmitting plate.
4. The colored photovoltaic module of claim 1, wherein the light transmissive cover sheet is an embossed light transmissive cover sheet; and/or the presence of a gas in the gas,
the embossed light-transmitting plate is a single-side embossed light-transmitting plate or a double-side embossed light-transmitting plate.
5. The color photovoltaic module according to claim 1, wherein the hollow interlayer is a vacuum interlayer.
6. The color photovoltaic module according to claim 1, wherein the hollow interlayer is filled with an adiabatic gas; wherein the heat insulating gas is air or inert gas.
7. The colored photovoltaic module of any one of claims 1 to 6, wherein the backsheet is a thermally conductive backsheet; wherein the content of the first and second substances,
the heat-conducting back plate is a metal back plate; and/or the presence of a gas in the gas,
the heat-conducting back plate comprises a back substrate and a heat-conducting layer wrapped on the back substrate.
8. The color photovoltaic module according to claim 7, further comprising a heat dissipation mechanism for dissipating heat from the thermally conductive backsheet; the heat dissipation mechanism is fixed on the side wall of the heat-conducting back plate.
9. The assembly of claim 8, wherein the heat dissipation mechanism is a metallic heat dissipation tube assembly or a phase change heat dissipation tube assembly; and/or the presence of a gas in the gas,
the heat dissipation mechanism comprises at least one heat dissipation pipe, and the at least one heat dissipation pipe is fixed on the side wall of the heat conduction type backboard.
10. The colored photovoltaic module according to any one of claims 1 to 6, further comprising a spacer, wherein the light-transmitting cover plate and the embossed light-transmitting plate are fixed together by the spacer, and the light-transmitting cover plate, the embossed light-transmitting plate and the spacer enclose the hollow interlayer; and/or the presence of a gas in the gas,
the photovoltaic cell is provided with a light reflecting part, and the light reflecting part is at least one of a grid line, an interconnection bar and a bus bar; the color photovoltaic module further comprises a black insulating barrier formed on the light reflecting portion.
11. A photovoltaic system comprising the colored photovoltaic module defined in any one of claims 1 to 10.
12. The photovoltaic system of claim 11, further comprising a heat-using device for recovering heat dissipated by the colored photovoltaic module; wherein the content of the first and second substances,
the heat utilization equipment comprises at least one of a thermoelectric device, a heat accumulator and a heater.
CN202020775737.1U 2020-05-11 2020-05-11 Colored photovoltaic module and photovoltaic system Active CN212323010U (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113193066A (en) * 2021-05-07 2021-07-30 安徽旭能电力股份有限公司 Solar photovoltaic power generation photosensitive glass outer layer assembly
CN114315156A (en) * 2021-11-30 2022-04-12 无锡极电光能科技有限公司 Perovskite quantum dot glaze, photovoltaic glass, preparation method of photovoltaic glass and photovoltaic module
CN115172504A (en) * 2022-07-21 2022-10-11 新源劲吾(北京)科技有限公司 Color photovoltaic panel and manufacturing method thereof
CN115579404A (en) * 2022-11-03 2023-01-06 新源劲吾(北京)科技有限公司 Color photovoltaic module and color changing method thereof
CN116978980A (en) * 2023-08-01 2023-10-31 新源劲吾(北京)科技有限公司 Normal-temperature color photovoltaic packaging equipment
CN117712207A (en) * 2023-11-09 2024-03-15 新源劲吾(北京)科技有限公司 Hollow color photovoltaic manufacturing method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113193066A (en) * 2021-05-07 2021-07-30 安徽旭能电力股份有限公司 Solar photovoltaic power generation photosensitive glass outer layer assembly
CN114315156A (en) * 2021-11-30 2022-04-12 无锡极电光能科技有限公司 Perovskite quantum dot glaze, photovoltaic glass, preparation method of photovoltaic glass and photovoltaic module
CN114315156B (en) * 2021-11-30 2023-12-29 无锡极电光能科技有限公司 Perovskite quantum dot glaze, photovoltaic glass, preparation method of perovskite quantum dot glaze and photovoltaic assembly
CN115172504A (en) * 2022-07-21 2022-10-11 新源劲吾(北京)科技有限公司 Color photovoltaic panel and manufacturing method thereof
CN115579404A (en) * 2022-11-03 2023-01-06 新源劲吾(北京)科技有限公司 Color photovoltaic module and color changing method thereof
CN116978980A (en) * 2023-08-01 2023-10-31 新源劲吾(北京)科技有限公司 Normal-temperature color photovoltaic packaging equipment
CN116978980B (en) * 2023-08-01 2024-02-02 新源劲吾(北京)科技有限公司 Normal-temperature color photovoltaic packaging equipment
CN117712207A (en) * 2023-11-09 2024-03-15 新源劲吾(北京)科技有限公司 Hollow color photovoltaic manufacturing method
CN117712207B (en) * 2023-11-09 2024-05-03 新源劲吾(北京)科技有限公司 Hollow color photovoltaic manufacturing method

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