Super-thick energy-saving cadmium telluride power generation glass

Abstract

The invention relates to the technical field of hollow glass, in particular to super-thick energy-saving cadmium telluride power generation glass which comprises a first glass substrate and a second glass substrate. A first film layer, a cadmium telluride chip, a second film layer, a first middle glass layer, a first spacing edge strip, a second middle glass layer, a second spacing edge strip and a third film layer are sequentially arranged on the inner sides of the first glass substrate and the second glass substrate from left to right; the POE material is used as the first film layer, the SGP material is used as the second film layer, and the PVB material is used as the third film layer, so that the structural layer between the first glass substrate and the second glass substrate has good tear strength and high shear modulus; meanwhile, the first middle glass layer and the second middle glass layer are arranged between the composite connecting layers, so that the overall explosion-proof performance is improved, the far infrared part in solar radiation is blocked, the light transmittance of the cadmium telluride chip can still meet the application requirement after the hierarchical structure covers, and the efficient photoelectric conversion efficiency is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of hollow glass, in particular to an ultra-thick energy-saving cadmium telluride power generation glass. Background Art

[0002] Cadmium telluride power generation glass mainly achieves energy saving by using cadmium telluride solar power generation chips in the middle of curtain wall glass and converting solar energy into electrical energy. Conventional cadmium telluride power generation chips are mainly used in medium and low thickness glass bodies to meet the light transmission requirements. However, when used in ultra-thick glass with a total thickness greater than 15mm, traditional laminated glass is not sufficient to meet the light transmission requirements of cadmium telluride power generation chips, which can easily affect the power generation power of cadmium telluride chips. Summary of the invention

[0003] In view of the problems in the prior art, the present invention provides an ultra-thick energy-saving cadmium telluride power generation glass.

[0004] The technical solution adopted by the present invention to solve its technical problems is: an ultra-thick energy-saving cadmium telluride power generation glass, comprising a first glass substrate and a second glass substrate, wherein the first glass substrate and the second glass substrate are provided with a first film layer, a cadmium telluride chip, a second film layer, a first intermediate glass layer, a first spacing edge strip, a second intermediate glass layer, a second spacing edge strip and a third film layer in sequence from left to right on the inner sides thereof, wherein one side of the first glass substrate is an outdoor surface, and one side of the second glass substrate is an indoor surface, the cadmium telluride chip is sandwiched between the first film layer and the second film layer, the cadmium telluride chip is a cadmium telluride battery chip, and the cadmium telluride chip has a thickness of 3.1-3.3 mm and a light transmittance of 58-65%.

[0005] Preferably, the first glass substrate is made of ultra-white tempered glass, and the thickness of the first glass substrate is 5.9-6.2 mm.

[0006] Preferably, the first film layer is made of POE film.

[0007] Preferably, the second film layer is made of SGP film.

[0008] Preferably, the first intermediate glass layer and the second intermediate glass layer are both made of ultra-white tempered LOW-E glass, and the thickness of the first intermediate glass layer and the second intermediate glass layer are both 5.9-6.1 mm.

[0009] Preferably, the first spacing edge strip and the second spacing edge strip are both warm edge strips filled with argon, and the thickness of the first spacing edge strip and the second spacing edge strip are both 12 mm.

[0010] Preferably, the third film layer is made of PVB film.

[0011] Preferably, the second glass substrate is made of ultra-white semi-tempered glass, and the thickness of the second glass substrate is 5.9-6.1 mm.

[0012] Compared with the prior art, the present invention has the following beneficial effects: by using POE material as the first film layer, SGP material as the second film layer, and PVB material as the third film layer, the cadmium telluride chip is sandwiched between the first glass substrate and the second glass substrate to form a packaging composite connection layer, so that the structural layer between the first glass substrate and the second glass substrate has good tear strength and high shear modulus, which can avoid sliding displacement between the structural layers and maintain the overall weather resistance and transparency of the glass. At the same time, by arranging the first intermediate glass layer and the second intermediate glass layer between the composite connection layer, the overall explosion-proof performance is improved, the far-infrared part of solar radiation is blocked, and indoor and outdoor heat is reduced. At the same time, after being covered by the above-mentioned hierarchical structure, the light transmittance of the cadmium telluride chip can still meet the application requirements, ensuring high photoelectric conversion efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 This is a composition diagram of an ultra-thick energy-saving cadmium telluride power generation glass of the present invention.

[0015] Figure 2 The present invention is Figure 1 Enlarged view of part A in the middle. Figure 3 It is a schematic structural diagram of an embodiment of the present invention.

[0016] In the figure: 1. first glass substrate; 2. first film layer; 3. cadmium telluride chip; 4. second film layer; 5. first intermediate glass layer; 6. first spacing edge strip; 7. second intermediate glass layer; 8. second spacing edge strip; 9. third film layer; 10. second glass substrate. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0018] like Figure 1-Figure 3As shown, the ultra-thick energy-saving cadmium telluride power generation glass described in the present invention comprises a first glass substrate 1 and a second glass substrate 10, and the first film layer 2, the cadmium telluride chip 3, the second film layer 4, the first intermediate glass layer 5, the first spacing edge strip 6, the second intermediate glass layer 7, the second spacing edge strip 8 and the third film layer 9 are sequentially arranged on the inner sides of the first glass substrate 1 and the second glass substrate 10 from left to right, wherein one side of the first glass substrate 1 is the outdoor surface, and one side of the second glass substrate 10 is the indoor surface, the cadmium telluride chip 3 is sandwiched between the first film layer 2 and the second film layer 4, the cadmium telluride chip 3 is a cadmium telluride battery chip, and the cadmium telluride chip 3 has a thickness of 3.1-3.3 mm and a light transmittance of 58-65%.

[0019] In this embodiment, the layers of the ultra-thick energy-saving cadmium telluride power generation glass are selected from right to left in sequence: the first glass substrate 1 (6mm ultra-white tempered), the first film layer 2 (1.14POE+3.2mm), the cadmium telluride chip 3, the second film layer 4 (1.14SGP), the first intermediate glass layer 5 (specification is 6mm ultra-white tempered #2 / XD6972), the first spacer edge strip 6 (12mm black warm edge strip filled with argon), the second intermediate glass layer 7 (specification is 8mm ultra-white tempered #2 / XDTN0082), the second spacer edge strip 8 (12mm black warm edge strip filled with argon), the third film layer 9 (1.52PVB), and the second glass substrate 10 (6mm ultra-white semi-tempered), as shown in the following table. The following table is a calculation table of electrical performance parameters of the ultra-thick energy-saving cadmium telluride power generation glass made in this embodiment.

[0020]

[0021]

[0022] In this embodiment, the present invention uses a direct bandgap semiconductor cadmium telluride chip 3 with a thickness of 3.1-3.3mm, a bandgap width of 1.44eV-1.45eV, close to the optimal bandgap width (1.4eV), a theoretical efficiency limit of 32%, and a power generation efficiency of more than 3% higher than that of a crystalline silicon cell. At the same time, affected by the characteristics of semiconductor materials, the photoelectric conversion efficiency of all current photovoltaic modules will decrease with the increase of the temperature of the module itself, wherein the temperature coefficient of the power generation of monocrystalline silicon is ≤-0.36% / ℃, while the power generation temperature coefficient of the cadmium telluride chip 3 used in the present invention is ≤-0.29% / ℃, and the cadmium telluride chip 3 is high voltage and low current, so that it has a good weak light effect, and the average conversion efficiency at 200W / m2 can reach 98.6% of the standard light intensity, and its weak light power generation characteristics are very significant. However, the conversion efficiency of monocrystalline silicon products can only reach 93% under the standard light intensity at 200W / m2.

[0023] In an optional implementation manner of this embodiment, the first glass substrate 1 is made of ultra-white tempered glass, and the thickness of the first glass substrate 1 is 5.9-6.2 mm.

[0024] In an optional implementation manner of this embodiment, the second glass substrate 10 is made of ultra-white semi-tempered glass, and the thickness of the second glass substrate 10 is 5.9-6.1 mm.

[0025] In this embodiment, the indoor and outdoor layers of the glass are formed by the first glass substrate 1 and the second glass substrate 10 .

[0026] In an optional implementation manner of this embodiment, the first film layer 2 is made of POE film.

[0027] In the present embodiment, the first film layer 2 serves as a packaging layer, covering between the cadmium telluride chip 3 and the first glass substrate 1, and plays a role in maintaining the light transmittance of the cadmium telluride chip 3 after the chips are assembled, and can ensure that more sunlight reaches the cadmium telluride chip 3 through the glass, thereby improving the power generation efficiency of the cadmium telluride chip 3. At the same time, it has good water vapor barrier ability, which can effectively prevent water vapor from penetrating into the cadmium telluride chip 3, reducing battery corrosion and performance degradation caused by water vapor, and the first film layer 2 has a high volume resistivity and good resistance to potential induced decay (PID), which helps to reduce the risk of leakage of the cadmium telluride chip 3 during operation and improve safety.

[0028] In an optional implementation manner of this embodiment, the second film layer 4 is made of SGP film.

[0029] In this embodiment, the second film layer 4 is used as an encapsulation layer, covering between the cadmium telluride chip 3 and the first intermediate glass layer 5, and plays a role in improving the edge stability of the connection between the cadmium telluride chip 3 and the first intermediate glass layer 5. At the same time, the second film layer 4 is insensitive to moisture, and will not debond when used under exposed conditions, and the second film layer 4 is not easy to slide when subjected to force. Therefore, the bearing capacity of the SGP laminated glass is twice that of the PVB laminated glass of equal thickness. At the same time, under the condition of equal load and equal thickness, the bending deflection of the SGP laminated glass is only 1 / 4 of that of the PVB laminated glass.

[0030] In an optional implementation manner of this embodiment, the first intermediate glass layer 5 and the second intermediate glass layer 7 are both made of ultra-white tempered LOW-E glass, and the thickness of the first intermediate glass layer 5 and the second intermediate glass layer 7 are both 5.9-6.1 mm.

[0031] In this embodiment, after the first intermediate glass layer 5 and the second intermediate glass layer 7 form an intermediate layer, since there are fewer NiS impurities in the ultra-white tempered glass and the ultra-white semi-tempered glass, the raw material melting process is finely controlled, so that the composition of the ultra-white glass is more uniform, thereby effectively reducing the probability of self-explosion after tempering. At the same time, the iron content is only 1 / 10 of that of ordinary glass, which can effectively reduce the absorption of the green band in the visible light, ensuring the consistency of the glass color, and the ultra-white tempered glass has a high light transmittance, does not affect the power generation efficiency of the cadmium telluride chip 3, effectively blocks ultraviolet rays, protects the surface of the cadmium telluride chip 3 from damage by ultraviolet rays, and has a strong resistance to acid and alkali chemicals. After being matched with the cadmium telluride chip 3 to form a power generation glass component, it can adapt to the acid rain environment.

[0032] In an optional implementation manner of this embodiment, the first spacing edge strip 6 and the second spacing edge strip 8 are both warm edge strips filled with argon gas, and the thickness of the first spacing edge strip 6 and the second spacing edge strip 8 are both 12 mm.

[0033] In this embodiment, since argon has a higher density, a lower thermal conductivity and a more stable performance, filling argon into the first spacing edge strip 6 and the second spacing edge strip 8 can reduce the heat conduction of the gas in the hollow layer, thereby reducing the U value of the glass, achieving the effect of heat preservation and energy saving. After filling with argon, the two pieces of glass will not be compressed toward the middle and can better resist the atmospheric pressure. At the same time, filling with argon can effectively improve the condensation phenomenon on the surface of the first glass substrate 1 and reduce the generation of condensed water. Filling with inactive inert gas can reduce the oxidation rate of the LOW-E protective film layer of the first intermediate glass layer 5 and the second intermediate glass layer 7.

[0034] In an optional implementation manner of this embodiment, the third film layer 9 is made of PVB film.

[0035] In this embodiment, the third film layer 9 is used as a packaging layer, covering between the second spacing edge strip 8 and the second glass substrate 10 as an outer protective layer, which plays a role in increasing the adhesion of the outdoor layer.

[0036] The working principle of the present invention is that POE material is used as the first film layer 2, SGP material is used as the second film layer 4, and PVB material is used as the third film layer 9, and the cadmium telluride chip 3 is sandwiched between the first glass substrate 1 and the second glass substrate 10 to form a packaging composite connecting layer, so that the structural layer between the first glass substrate 1 and the second glass substrate 10 has good tear strength and high shear modulus, which can avoid sliding displacement between the structural layers and maintain the overall weather resistance and transparency of the glass. At the same time, by arranging the first intermediate glass layer 5 and the second intermediate glass layer 7 between the composite connecting layers, the overall explosion-proof performance is improved, the far-infrared part of solar radiation is blocked, and indoor and outdoor heat is reduced. At the same time, after being covered by the above-mentioned hierarchical structure, the light transmittance of the cadmium telluride chip 3 can still meet the application requirements.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. An ultra-thick energy-saving cadmium telluride power generation glass, comprising a first glass substrate (1) and a second glass substrate (10), characterized in that: The first glass substrate (1) and the second glass substrate (10) are provided with a first film layer (2), a cadmium telluride chip (3), a second film layer (4), a first intermediate glass layer (5), a first spacing edge strip (6), a second intermediate glass layer (7), a second spacing edge strip (8) and a third film layer (9) in sequence from left to right on the inner side thereof, wherein one side of the first glass substrate (1) is an outdoor surface, and one side of the second glass substrate (10) is an indoor surface; the cadmium telluride chip (3) is sandwiched between the first film layer (2) and the second film layer (4); the cadmium telluride chip (3) is a cadmium telluride battery chip; and the cadmium telluride chip (3) has a thickness of 3.1-3.3 mm and a light transmittance of 58-65%.

2. The ultra-thick energy-saving cadmium telluride power generation glass according to claim 1, characterized in that: The first glass substrate (1) is made of ultra-white tempered glass, and the thickness of the first glass substrate (1) is 5.9-6.2 mm.

3. The ultra-thick energy-saving cadmium telluride power generation glass according to claim 1, characterized in that: The first film layer (2) is made of POE film.

4. The ultra-thick energy-saving cadmium telluride power generation glass according to claim 1, characterized in that: The second film layer (4) is made of SGP film.

5. The ultra-thick energy-saving cadmium telluride power generation glass according to claim 1, characterized in that: The first intermediate glass layer (5) and the second intermediate glass layer (7) are both made of ultra-white tempered LOW-E glass, and the thickness of the first intermediate glass layer (5) and the second intermediate glass layer (7) are both 5.9-6.1 mm.

6. The ultra-thick energy-saving cadmium telluride power generation glass according to claim 1, characterized in that: The first spacing edge strip (6) and the second spacing edge strip (8) are both warm edge strips filled with argon gas, and the thickness of the first spacing edge strip (6) and the second spacing edge strip (8) are both 12 mm.

7. The ultra-thick energy-saving cadmium telluride power generation glass according to claim 1, characterized in that: The third film layer (9) is made of PVB film.

8. The ultra-thick energy-saving cadmium telluride power generation glass according to claim 1, characterized in that: The second glass substrate (10) is made of ultra-white semi-tempered glass, and the thickness of the second glass substrate (10) is 5.9-6.1 mm.

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