Curtain wall glass

Abstract

The utility model relates to the technical field of building curtain walls, and discloses curtain wall glass which comprises a substrate, an annular solar cell unit and an electrochromic glass unit, and the annular solar cell unit and the electrochromic glass unit are arranged on the substrate. The electrochromic glass unit is arranged in the center of the substrate, the annular solar cell unit is arranged around the electrochromic glass unit, and an insulating layer is arranged between the circumferential outer wall of the electrochromic glass unit and the circumferential inner wall of the annular solar cell unit. And the annular solar cell unit and the electrochromic glass unit form closed-loop circuit connection. The utility model has the beneficial effects that solar energy can be converted into electric energy, an external power supply is not needed to supply power, the energy consumption is reduced, and the conversion utilization rate of clean energy is improved; meanwhile, the electrochromic glass unit and the annular solar cell unit are reasonably arranged, short circuit is avoided, and the stability of the curtain wall glass structure is improved.

Description

Technical Field

[0001] This utility model relates to the field of building curtain wall technology, and in particular to a curtain wall glass. Background Technology

[0002] When electrochromic glass is connected to an external power source, it can change its color under the influence of an electric field, thus regulating the transmittance of sunlight and reducing the large amount of energy consumed by office buildings and residential buildings to keep them cool in summer and warm in winter. Therefore, electrochromic glass is used as curtain wall glass in the construction industry.

[0003] In existing technologies, curtain wall glass requires continuous external power to maintain its color, which consumes a lot of energy and cannot convert and utilize the solar energy shining on the curtain wall glass, resulting in a low conversion rate of clean energy. Utility Model Content

[0004] The purpose of this invention is to provide a curtain wall glass that can convert solar energy into electrical energy without the need for an external power supply, thereby reducing energy consumption and improving the conversion and utilization rate of clean energy. At the same time, the electrochromic glass unit and the annular solar cell unit are rationally arranged to avoid short circuits and improve the stability of the curtain wall glass structure.

[0005] To achieve the above objectives, the present invention provides a curtain wall glass, including a substrate, and an annular solar cell unit and an electrochromic glass unit disposed on the substrate;

[0006] The electrochromic glass unit is disposed at the center of the substrate, and the annular solar cell unit is disposed around the electrochromic glass unit. An insulating layer is provided between the circumferential outer wall of the electrochromic glass unit and the circumferential inner wall of the annular solar cell unit. The annular solar cell unit and the electrochromic glass unit form a closed-loop circuit connection.

[0007] Furthermore, the electrochromic glass unit includes a first conductive layer, a cathode electrochromic layer, an ion-conducting layer, a mixed layer, and a second conductive layer stacked from bottom to top. The first conductive layer is disposed on the substrate, and the mixed layer includes an anode electrochromic layer and an electrolyte layer.

[0008] Furthermore, the annular solar cell unit includes a third conductive layer, an electron transport layer, a perovskite layer, a hole transport layer, and a fourth conductive layer stacked from bottom to top, with the third conductive layer disposed on the substrate.

[0009] Furthermore, the cathode electrochromic layer and the electron transport layer are made of tungsten trioxide thin film with a thickness between 200 nm and 400 nm.

[0010] Furthermore, the thickness of the perovskite layer is 300nm-400nm.

[0011] Furthermore, the thickness of the hole transport layer is 100nm-200nm.

[0012] Furthermore, the annular solar cell is flush with the top of the electrochromic glass unit.

[0013] Furthermore, the thickness of the second conductive layer and the fourth conductive layer is 30nm-50nm.

[0014] Furthermore, the second conductive layer and the fourth conductive layer are made of ITO thin film.

[0015] Furthermore, the width of the insulating layer is between 3 and 5 mm.

[0016] Compared with existing technologies, the curtain wall glass of this embodiment has the following advantages: An electrochromic glass unit is positioned at the center of the substrate, and a ring-shaped solar cell unit surrounds the electrochromic glass unit. The ring-shaped solar cell unit powers the electrochromic glass unit, converting solar energy into electrical energy without the need for an external power supply, thus saving energy, protecting the environment, and improving the utilization rate of clean energy. An insulating layer is provided between the circumferential outer wall of the electrochromic glass unit and the circumferential inner wall of the ring-shaped solar cell unit to prevent short circuits and improve the stability of the curtain wall glass structure. Furthermore, the ring-shaped solar cell unit and the electrochromic glass unit are arranged on the substrate to form a concentric structure of outer ring power generation and central dimming. This arrangement ensures that the two functional units do not obstruct each other; that is, the central area retains the complete light-transmitting surface of the electrochromic glass, while the outer ring area maximizes the use of the visual transition zone at the edge of the electrochromic glass for power generation, achieving a balance between function and aesthetics. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the curtain wall glass according to an embodiment of this utility model;

[0018] Figure 2 This is a cross-sectional view of the curtain wall glass in an embodiment of this utility model.

[0019] In the figure, 1 is the substrate; 2 is the annular solar cell unit; 21 is the third conductive layer; 22 is the electron transport layer; 23 is the perovskite layer; 24 is the hole transport layer; 25 is the fourth conductive layer; 3 is the electrochromic glass unit; 31 is the first conductive layer; 32 is the cathode electrochromic layer; 33 is the ion conduction layer; 34 is the hybrid layer; 35 is the second conductive layer; and 4 is the insulating layer. Detailed Implementation

[0020] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0021] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "inner", "outer" and other terms used in this utility model to indicate the orientation or positional relationship are based on the positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device and element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] In the description of this utility model, it should be understood that the terms "first," "second," etc., are used to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this utility model, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information.

[0023] like Figure 1 , Figure 2 As shown, the system includes a substrate 1, and a ring-shaped solar cell unit 2 and an electrochromic glass unit 3 disposed on the substrate 1. The electrochromic glass unit 3 is used to adjust the light transmittance, and the ring-shaped solar cell unit 2 supplies power to the electrochromic glass unit 3. That is, the ring-shaped solar cell unit 2 and the electrochromic glass unit 3 form a closed-loop circuit connection, which can convert solar energy into electrical energy without the need for an external power supply, thus saving energy, protecting the environment, and improving the utilization rate of clean energy. For ease of arrangement, the electrochromic glass unit 3 is positioned at the center of the substrate 1, and the ring-shaped solar cell unit 2 surrounds the electrochromic glass unit 3.

[0024] Further, see Figure 1 To prevent short circuits between the electrochromic glass unit 3 and the annular solar cell unit 2 and to ensure the stability of the curtain wall glass structure, an insulating layer 4 is provided between the outer circumferential wall of the electrochromic glass unit 3 and the inner circumferential wall of the annular solar cell unit 2.

[0025] Furthermore, in order to maintain a consistent thickness throughout the curtain wall glass and improve the uniformity of light transmittance adjustment, since the bottom of the annular solar cell unit 2 and the electrochromic glass unit 3 are flush with the top surface of the substrate 1, in this embodiment, the bottom of the annular solar cell unit 2 and the electrochromic glass unit 3 are flush with the top surface of the substrate 1, so that the thickness of the curtain wall glass is consistent throughout.

[0026] Further, see Figure 1 The electrochromic glass unit 3 includes a first conductive layer 31, a cathode electrochromic layer 32, an ion-conducting layer 33, a hybrid layer 34, and a second conductive layer 35 stacked from bottom to top. The first conductive layer 31 is disposed on the substrate 1, and the hybrid layer 34 includes an anode electrochromic layer and an electrolyte layer. Meanwhile, the annular solar cell unit 2 includes a third conductive layer 21, an electron transport layer 22, a perovskite layer 23, a hole transport layer 24, and a fourth conductive layer 25 stacked from bottom to top. The third conductive layer 21 is disposed on the substrate 1.

[0027] Furthermore, to facilitate the integration of the electrochromic glass unit 3 and the annular solar cell unit 2 onto the same substrate 1, in this embodiment, refer to... Figure 1 The electrochromic glass unit 3 and the annular solar cell unit 2 have one-to-one vertical layer structures with the same thickness. To reduce manufacturing difficulty, in this embodiment, the first conductive layer 31 and the third conductive layer 21 are made of tungsten trioxide (WO3) film. To meet their conductivity requirements and have good structural strength, the thickness of the tungsten trioxide film is between 200nm and 400nm. Similarly, the thickness of the second conductive layer 35 and the fourth conductive layer 25 is 30nm-50nm, and the second conductive layer 35 and the fourth conductive layer 25 are made of ITO film.

[0028] Furthermore, in this embodiment, the annular solar cell is a thin-film solar cell. In this embodiment, the perovskite layer 23 absorbs sunlight, and the energy in the photons is used to excite electrons. To ensure power generation efficiency and meet the color-changing requirements of the electrochromic glass unit 3, the thickness of the perovskite layer 23 is 300nm-400nm. Further, to improve the photoelectric conversion efficiency of the cell, the thickness of the hole transport layer 24 is 100nm-200nm. In this embodiment, to simultaneously meet the manufacturing requirements of the electrochromic glass unit 3, the hole transport layer 24 is made of nickel oxide.

[0029] Furthermore, to facilitate the installation of the insulation layer 4, an excessively thick insulation layer 4 would affect the uniformity of light transmittance across the curtain wall glass, while an excessively thin layer would increase the risk of short circuits between the electrochromic glass unit 3 and the ring-shaped solar cell unit 2. (See also...) Figure 1 The width of insulating layer 4 ( Figure 1 The length of the middle substrate 1 is between 3mm and 5mm.

[0030] The manufacturing process of the curtain wall glass of this utility model is as follows:

[0031] S1. Place an FTO plate for fabricating the first conductive layer 31 and the third conductive layer 21 on the substrate 1, and use a laser to scribing the FTO plate to insulate and distinguish the electrochromic glass unit 3 area from the annular solar cell unit 2 area.

[0032] S2. A tungsten trioxide thin film is deposited on the first conductive layer 31 and the third conductive layer 21 by magnetron sputtering PVD method to form a cathode electrochromic layer 32 and an electron transport layer 22 respectively.

[0033] S3. Using a mask to shield the annular solar cell area, an ion-conducting layer 33 (referred to as IC layer) is deposited in the electrochromic glass unit 3 area by magnetron sputtering PVD method;

[0034] S4. Use a mask to cover the electrochromic glass unit 3, spray the perovskite layer 23 in the area of ​​the annular solar cell unit 2 using a coating method, and perform low-temperature annealing on the perovskite layer 23.

[0035] S5. A nickel oxide film is deposited on the entire surface using magnetron sputtering, which forms an anodic electrochromic layer and a hole transport layer 24.

[0036] S6. Perform laser scribing on the ring-shaped solar cell;

[0037] S7. Using a mask to block the annular solar cell region, an electrolyte layer Li layer is deposited in the electrochromic glass unit 3 region by magnetron sputtering PVD method.

[0038] S8. A magnetron sputtering method is used to deposit an ITO film layer on the entire surface, forming a second conductive layer 35 and a fourth conductive layer 25.

[0039] S9. Repeatedly use laser scribing to insulate and distinguish the electrochromic glass unit 3 from the annular solar cell unit 2.

[0040] S10. Laser scribing is performed on the area of ​​electrochromic glass unit 3, and adhesive is applied to lead out the electrodes of electrochromic glass unit 3 and annular solar cell unit 2 for encapsulation, thus completing the curtain wall glass fabrication.

[0041] In summary, this embodiment of the invention provides a curtain wall glass. An electrochromic glass unit 3 is disposed at the center of a substrate 1, and a ring-shaped solar cell unit 2 surrounds the electrochromic glass unit 3. The ring-shaped solar cell unit 2 powers the electrochromic glass unit 3, converting solar energy into electrical energy without requiring an external power supply, thus saving energy, protecting the environment, and improving the utilization rate of clean energy. An insulating layer 4 is provided between the circumferential outer wall of the electrochromic glass unit 3 and the circumferential inner wall of the ring-shaped solar cell unit 2 to prevent short circuits and improve the stability of the curtain wall glass structure. Furthermore, the ring-shaped solar cell unit 2 and the electrochromic glass unit 3 are disposed on the substrate 1, forming a concentric structure of outer ring power generation and central dimming. This arrangement ensures that the two functional units do not obstruct each other; that is, the central area retains the complete light-transmitting surface of the electrochromic glass, while the outer ring area maximizes the use of the edge viewing transition zone of the electrochromic glass for power generation, achieving a balance between function and aesthetics.

[0042] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A curtain wall glass characterized by: The application relates to a solar cell and an electrochromic glass unit, and belongs to the technical field of solar energy. The electrochromic glass unit is arranged at the center of the substrate, the annular solar cell unit is arranged around the electrochromic glass unit, an insulation layer is arranged between the circumferential outer wall of the electrochromic glass unit and the circumferential inner wall of the annular solar cell unit, and the annular solar cell unit and the electrochromic glass unit form a closed-loop circuit connection.

2. The curtain wall glass of claim 1, wherein: The electrochromic glass unit comprises a first conductive layer, a cathode electrochromic layer, an ion conduction layer, a mixed layer and a second conductive layer which are arranged in a bottom-up stacking mode, the first conductive layer is arranged on the substrate, and the mixed layer comprises an anode electrochromic layer and an electrolyte layer.

3. The curtain wall glass of claim 2, wherein: The annular solar cell unit comprises a third conductive layer, an electron transport layer, a perovskite layer, a hole transport layer and a fourth conductive layer which are arranged in a bottom-up stacking mode, and the third conductive layer is arranged on the substrate.

4. The curtain wall glass of claim 3, wherein: The cathode electrochromic layer and the electron transport layer are made of a tungsten trioxide film, and the thickness of the tungsten trioxide film is between 200 nm and 400 nm.

5. The curtain wall glass of claim 3, wherein: The thickness of the perovskite layer is between 300 nm and 400 nm.

6. The curtain wall glass of claim 3, wherein: The thickness of the hole transport layer is between 100 nm and 200 nm.

7. The curtain wall glass of claim 1, wherein: The annular solar cell is flush with the top of the electrochromic glass unit.

8. The curtain wall glass of claim 3, wherein: The thickness of the second conductive layer and the fourth conductive layer is between 30 nm and 50 nm.

9. The curtain wall glass of claim 3, wherein: The second conductive layer and the fourth conductive layer are made of an ITO film.

10. The curtain wall glass of claim 1, wherein: The width of the insulation layer is between 3 mm and 5 mm.

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