Hollow photovoltaic glass

Abstract

The utility model discloses hollow photovoltaic glass, which comprises hollow glass, first glass and a composite function module, and is characterized in that the first glass and the hollow glass are arranged at an interval along the thickness direction of the hollow glass; the composite function module is arranged between the first glass and the hollow glass, the composite function module comprises a first electrode layer, a second electrode layer and a third electrode layer which are sequentially arranged in the thickness direction of the hollow glass, a PDLC layer is arranged between the first electrode layer and the second electrode layer, and a photovoltaic power generation layer is arranged between the second electrode layer and the third electrode layer; the first electrode layer, the PDLC layer and the second electrode layer form a dimming film, and the second electrode layer, the photovoltaic power generation layer and the third electrode layer form a transparent photovoltaic device. According to the hollow photovoltaic glass provided by the utility model, the dimming film and the transparent photovoltaic film are compounded together, so that the overall thickness of the hollow photovoltaic glass can be further reduced, and the manufacturing cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to hollow glass technical field, especially a kind of hollow photovoltaic glass. BACKGROUND

[0002] Traditional hollow photovoltaic glass generally includes outer glass, transparent photovoltaic and hollow glass of built-in louver system in turn, louver system usually includes micro motor, controller, battery, louver curtain, hollow glass inside needs enough space to install louver system, resulting in the thickness of entire hollow photovoltaic glass is thicker.In related technology, in order to reduce the thickness of hollow photovoltaic glass, light control film is arranged on the side of hollow glass away from transparent photovoltaic, and the energized light control function of light control film is used to replace louver system.However, the overall thickness of the existing hollow photovoltaic glass with light control film still needs to be further reduced, and the cost also needs to be further reduced. SUMMARY

[0003] The utility model aims at at least one of the technical problems existing in prior art is solved.For this purpose, the utility model provides a kind of hollow photovoltaic glass, by light control film and transparent photovoltaic are compounded together, the overall thickness of hollow photovoltaic glass can be further reduced, and production cost is reduced.

[0004] According to the hollow photovoltaic glass of the embodiment of the utility model, including hollow glass, first glass and composite function module, first glass, with the hollow glass is along the thickness direction of the hollow glass interval setting;The composite function module is set between the first glass and the hollow glass, the composite function module includes first electrode layer, second electrode layer and third electrode layer in turn along the thickness direction of the hollow glass, PDLC layer is arranged between the first electrode layer and the second electrode layer, photovoltaic power generation layer is arranged between the second electrode layer and the third electrode layer, wherein, the first electrode layer, the PDLC layer and the second electrode layer constitute light control film, the second electrode layer, photovoltaic power generation layer and the third electrode layer constitute transparent photovoltaic.

[0005] According to the hollow photovoltaic glass of the embodiment of the utility model, at least has following beneficial effects: the hollow photovoltaic glass provided by the utility model can be first electrode layer, PDLC layer and second electrode layer constitute light control film, can be second electrode layer, photovoltaic power generation layer and third electrode layer constitute transparent photovoltaic, whereby, light control film and transparent photovoltaic are compounded together to form composite function module, in the composite function module, light control film and transparent photovoltaic can share some structures, to simplify the overall composition of hollow photovoltaic glass, the overall thickness of hollow photovoltaic glass is further reduced, and production cost is reduced.

[0006] According to some embodiments of the present application, the third electrode layer is a light-transmitting electrode.

[0007] According to some embodiments of the present application, the first electrode layer is configured in a grid form.

[0008] According to some embodiments of the present application, the first electrode layer comprises a plurality of first grid bars arranged side by side, the energization of each first grid bar can be independently controlled, and the adjacent two first grid bars are filled with transparent insulating glue.

[0009] According to some embodiments of the present application, the first electrode layer and the second electrode layer are ITO glass.

[0010] According to some embodiments of the present application, the photovoltaic power generation layer comprises, in sequence along the thickness direction of the hollow glass, a hole transport layer, a light absorption layer, an electron transport layer and a functional layer.

[0011] According to some embodiments of the present application, the light absorption layer is a perovskite absorption layer.

[0012] According to some embodiments of the present application, the composite functional module and the first glass are adhesively connected through a PVB film, and the hollow glass and the composite functional module are adhesively connected through a PVB film.

[0013] According to some embodiments of the present application, the hollow glass comprises two oppositely arranged second glasses and a transparent interlayer, the transparent interlayer is located between the two second glasses, and the two second glasses and the transparent interlayer enclose a hollow cavity.

[0014] According to some embodiments of the present application, a control device and a storage battery are included, the control device and the storage battery are built-in the hollow glass, and the control device, the storage battery, the light-adjusting film and the transparent photovoltaic are electrically connected.

[0015] The additional aspects and advantages of the present application will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0016] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

[0017] Figure 1 FIG. 1 is a schematic view of a hollow photovoltaic glass according to one embodiment of the present application;

[0018] Figure 2 FIG. 2 is a schematic view of a hollow photovoltaic glass according to another embodiment of the present application;

[0019] Figure 3 for Figure 1 The diagram shows a structural schematic of a composite functional module for hollow photovoltaic glass.

[0020] Figure label:

[0021] Insulating glass 100, second glass 110, transparent interlayer 120, hollow cavity 130, first glass 200, composite functional module 300, first electrode layer 310, grid strip 311, insulating adhesive 312, second electrode layer 320, third electrode layer 330, second grid strip 331, gap 332, PDLC layer 340, photovoltaic power generation layer 350, hole transport layer 351, light absorption layer 352, electron transport layer 353, functional layer 354, PVB film 400, control device 510, and battery 520. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0023] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0025] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0026] In existing technologies, a standalone transparent photovoltaic (PV) generally includes, in sequence, an ITO electrode layer, a hole transport layer 351, a light absorption layer 352, an electron transport layer 353, and a backlight electrode layer. The hole transport layer 351, light absorption layer 352, electron transport layer 353, and functional layer 354 constitute a photovoltaic power generation layer 350. Furthermore, to protect the transparent PV, a transparent insulating protective layer is generally provided on the outer surface of the transparent PV; that is, an insulating protective layer is also provided on the outer surface of the ITO electrode layer and the outer surface of the backlight electrode layer. When assembling hollow photovoltaic glass, the transparent PV is generally bonded to other glass layers using an adhesive layer. In existing technologies, a standalone dimming film generally includes, in sequence, an insulating protective layer, an ITO electrode layer, a PDLC layer 340, an ITO electrode layer, and an insulating protective layer. When assembling hollow photovoltaic glass, the dimming film is generally bonded to other glass layers using an adhesive layer.

[0027] Reference Figures 1 to 3 According to an embodiment of the present invention, a hollow photovoltaic glass includes a hollow glass 100, a first glass 200, and a composite functional module 300. The first glass 200 and the hollow glass 100 are spaced apart along the thickness direction of the hollow glass 100. The composite functional module 300 is disposed between the first glass 200 and the hollow glass 100. The composite functional module 300 includes a first electrode layer 310, a second electrode layer 320, and a third electrode layer 330 arranged sequentially along the thickness direction of the hollow glass 100. A PDLC layer 340 is disposed between the first electrode layer 310 and the second electrode layer 320, and a photovoltaic power generation layer 350 is disposed between the second electrode layer 320 and the third electrode layer 330. The first electrode layer 310, the PDLC layer 340, and the second electrode layer 320 constitute a dimming film, and the second electrode layer 320, the photovoltaic power generation layer 350, and the third electrode layer 330 constitute a transparent photovoltaic system.

[0028] The hollow photovoltaic glass provided by this utility model can be composed of a dimming film formed by a first electrode layer 310, a PDLC layer 340 and a second electrode layer 320, and a transparent photovoltaic layer formed by a second electrode layer 320, a photovoltaic power generation layer 350 and a third electrode layer 330. Thus, the dimming film and the transparent photovoltaic are combined to form a composite functional module 300. In this composite functional module 300, the dimming film and the transparent photovoltaic can share some structures, thereby simplifying the overall structure of the hollow photovoltaic glass, further reducing the overall thickness of the hollow photovoltaic glass and reducing the manufacturing cost.

[0029] Specifically, compared to existing hollow photovoltaic glass where the dimming film and transparent photovoltaic are separately disposed on both sides of the hollow glass 100, the hollow photovoltaic glass provided by this invention allows the dimming film and transparent photovoltaic to share the second electrode layer 320, thereby reducing the number of electrode layers. Furthermore, if an insulating protective layer is required, it only needs to be provided on the entire outer surface of the composite functional module 300, thus saving on the cost of an insulating protective layer. If an adhesive layer is also used to connect the composite functional module 300 to the hollow glass 100 or the first glass 200, then the cost of an adhesive layer can be eliminated. Therefore, the hollow photovoltaic glass provided by this invention can further simplify the overall structure of the hollow photovoltaic glass, further reduce the overall thickness of the hollow photovoltaic glass, and lower manufacturing costs.

[0030] Reference Figure 1 In some embodiments, the direction from the insulating glass 100 to the first glass 200 may be such that the first electrode layer 310, the second electrode layer 320 and the third electrode layer 330 are arranged in sequence. In this case, the dimming film is close to the insulating glass 100, while the transparent photovoltaic is close to the first glass 200.

[0031] Reference Figure 2 In some other embodiments, the direction from the insulating glass 100 to the first glass 200 may also be such that the third electrode layer 330, the second electrode layer 320 and the first electrode layer 310 are arranged in sequence. In this case, the dimming film is close to the first glass 200, while the transparent photovoltaic is close to the insulating glass 100.

[0032] Reference Figure 1 and Figure 3 According to some embodiments of the present invention, the photovoltaic power generation layer 350 includes a hole transport layer 351, a light absorption layer 352, an electron transport layer 353 and a functional layer 354 arranged sequentially along the thickness direction of the insulating glass 100. Through the above arrangement, the photovoltaic power generation layer 350 can absorb light to generate electricity.

[0033] According to some embodiments of this invention, the light-absorbing layer 352 is a perovskite absorption layer, thus the transparent photovoltaic is a perovskite solar cell. The perovskite solar cell uses a material containing the perovskite crystal structure ABX3 as the light-absorbing layer 352. By adjusting the ion concentration, the light transmittance of the perovskite layer can be changed, thereby achieving light transmission of the light-absorbing layer 352.

[0034] Of course, in other embodiments, the light absorption layer 352 may also be made of other materials, which will not be described in detail here.

[0035] According to some embodiments of this utility model, the third electrode layer 330 is a light-transmitting electrode, allowing light to pass through the third electrode layer 330 to reach the light-absorbing layer 352. The third electrode layer 330 is primarily made of indium tin oxide (ITO).

[0036] In perovskite solar cells, the third electrode layer 330, photovoltaic power generation layer 350, and second electrode layer 320 are typically gridded, which divides the perovskite solar cell into several small cell blocks connected in series.

[0037] Reference Figure 3 According to some embodiments of the present invention, the first electrode layer 310 is configured in the form of a grid. In this case, the dimming film is a grid-type dimming film, which can simulate the dimming effect of Venetian blinds.

[0038] Reference Figure 3 Specifically, the first electrode layer 310 includes multiple parallel first grid strips 311. The energization of each first grid strip 311 can be independently controlled. When a certain first grid strip 311 is energized, the corresponding area of ​​the PDLC layer 340 becomes transparent. By adjusting the voltage, the degree of transparency can be adjusted. Thus, the energization of the first grid strip 311 at a certain position and the number of energized first grid strips 311 can be controlled as needed to achieve grid-type dimming, thereby achieving the effect of virtual blinds. Transparent insulating adhesive 312 can be filled between two adjacent first grid strips 311. In this case, the spacing between two adjacent first grid strips 311 is small, making them indistinguishable to the human eye at a distance.

[0039] According to some embodiments of this utility model, the first electrode layer 310 and the second electrode layer 320 are ITO glass. ITO glass is a relatively mature technology that can control costs and ensure quality.

[0040] Reference Figure 1 According to some embodiments of this utility model, the composite functional module 300 and the first glass 200 are bonded together by a PVB film 400, and the insulating glass 100 and the composite functional module 300 are bonded together by a PVB film 400. Thus, the first glass 200, the composite functional module 300, and the insulating glass 100 can be securely installed together, and installation is relatively convenient. The full name of the PVB film 400 is polyvinyl butyral film, a thermoplastic resin film made from PVB resin and plasticizers, which is recyclable and reusable.

[0041] Of course, in other embodiments, the first glass 200, the composite functional module 300 and the insulating glass 100 can also be fixedly connected by snap-fit ​​or other means.

[0042] Reference Figure 1According to some embodiments of the present invention, the insulated glass 100 includes two opposing second glass 110s and a transparent interlayer 120. The transparent interlayer 120 is located between the two second glass 110s, and the two second glass 110s and the transparent interlayer 120 enclose a hollow cavity 130. With the above arrangement, the second glass 110s and the transparent interlayer 120 can be produced separately and then assembled into the insulated glass 100, which is convenient for production.

[0043] Reference Figure 1 According to some embodiments of this utility model, a control device 510 and a battery 520 are included. The control device 510 and the battery 520 are built into the insulating glass 100, and the control device 510, the battery 520, the dimming film, and the transparent photovoltaic are electrically connected. Therefore, since the control device 510 and the battery 520 are built into the insulating glass 100, no additional space needs to be allocated for their installation, ensuring the overall thickness of the insulating photovoltaic glass. To ensure light transmission, the circuit board and electronic components of the control device 510, and the battery 520 can be made of transparent materials as much as possible. Furthermore, the circuit board of the control device 510 can be installed against the side wall of the hollow cavity 130.

[0044] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A type of hollow photovoltaic glass, characterized in that, include: Insulating glass (100); The first glass (200) is spaced apart from the insulating glass (100) along the thickness direction of the insulating glass (100); A composite functional module (300) is disposed between the first glass (200) and the insulating glass (100). The composite functional module (300) includes a first electrode layer (310), a second electrode layer (320) and a third electrode layer (330) arranged sequentially along the thickness direction of the insulating glass (100). A PDLC layer (340) is disposed between the first electrode layer (310) and the second electrode layer (320), and a photovoltaic power generation layer (350) is disposed between the second electrode layer (320) and the third electrode layer (330). The first electrode layer (310), the PDLC layer (340) and the second electrode layer (320) constitute a dimming film, and the second electrode layer (320), the photovoltaic power generation layer (350) and the third electrode layer (330) constitute a transparent photovoltaic.

2. The hollow photovoltaic glass according to claim 1, characterized in that, The third electrode layer (330) is a light-transmitting electrode, and the first electrode layer (310) and the second electrode layer (320) are ITO glass.

3. The hollow photovoltaic glass according to claim 1, characterized in that, The first electrode layer (310) is configured in the form of a grid.

4. The hollow photovoltaic glass according to claim 3, characterized in that, The first electrode layer (310) includes multiple grid strips (311) arranged side by side. Whether each grid strip (311) is energized or not can be controlled independently. Transparent insulating glue (312) is filled between two adjacent grid strips (311).

5. A hollow photovoltaic glass according to any one of claims 1 to 4, characterized in that, The photovoltaic power generation layer (350) includes a hole transport layer (351), a light absorption layer (352), an electron transport layer (353), and a functional layer (354) arranged sequentially along the thickness direction of the insulating glass (100).

6. The hollow photovoltaic glass according to claim 5, characterized in that, The light absorption layer (352) is a perovskite absorption layer.

7. The hollow photovoltaic glass according to claim 1, characterized in that, The composite functional module (300) is bonded to the first glass (200) via a PVB film (400).

8. The hollow photovoltaic glass according to claim 7, characterized in that, The insulating glass (100) and the composite functional module (300) are bonded together by a PVB film (400).

9. A hollow photovoltaic glass according to claim 1, characterized in that, The insulated glass (100) includes two opposing second glass panes (110) and a transparent interlayer (120). The transparent interlayer (120) is located between the two second glass panes (110), and the two second glass panes (110) and the transparent interlayer (120) enclose a hollow cavity (130).

10. A hollow photovoltaic glass according to claim 1, characterized in that, It includes a control device (510) and a battery (520), the control device (510) and the battery (520) being built into the insulating glass (100), and the control device (510) being electrically connected to the battery (520), the dimming film and the transparent photovoltaic.

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