CN201546388U - A kind of architectural glass that can use solar energy to generate electricity - Google Patents

Abstract

A kind of architectural glass that can use solar energy to generate electricity, including low-iron tempered glass and tempered glass, with solar cell series and parallel groups installed between them, and between the solar cell series and parallel group and low-iron tempered glass and tempered glass. Bonded with PVB material, the exterior of the entire glass assembly is fitted with a thin stainless steel frame. The utility model uses PVB material with strong cohesiveness, toughness and elasticity as an adhesive to improve the shock resistance and impact resistance of the overall equipment, and can ensure that the entire equipment does not crack, and improves the traditional equipment that is easy to age and flood. Huang's disadvantages: using light-transmitting tempered glass as the lower cover, it can be used as a glass curtain wall and roof, which does not affect lighting, and can make good use of light energy, which is environmentally friendly and healthy, and can reduce power consumption and save resources. And it can meet the design requirements of photovoltaic building integration at the present stage; the wear resistance and corrosion resistance and mechanical properties of the thin stainless steel frame greatly increase the stability, aesthetics and service life of the utility model.

Description

A kind of architectural glass that can use solar energy to generate electricity

technical field

The invention relates to the technical field of solar building, and more specifically, relates to a building glass capable of utilizing solar energy to generate electricity.

Background technique

Now the most common equipment that can utilize solar energy is the traditional solar cell. Its overall structure includes the following: the uppermost layer is light-transmitting tempered glass, the middle is a battery panel, and the bottom is an opaque whiteboard bottom plate; The spaces are bonded with EVA material; the overall structure is fixed with an aluminum alloy frame. There are many deficiencies in such solar equipment, first of all, the utilization rate of solar energy is not high, and the use environment is subject to certain restrictions, such solar equipment cannot be used in an environment that requires light transmission; secondly, the adhesive of such traditional solar equipment The bonding degree of EVA material is greatly affected by temperature, and the bonding degree of EVA directly affects the performance and service life of the entire solar module. In the molten state, EVA bonds with crystalline silicon solar cells and glass, and there are both physical and chemical bonds in the process. Unmodified EVA is transparent, soft, hot-melt adhesive, low melting temperature and good melt fluidity. However, its heat resistance is poor, it is easy to extend but has low elasticity, low cohesive strength and poor creep resistance, and it is easy to cause thermal expansion and contraction, resulting in chip fragmentation and bond delamination. In addition, the aluminum alloy frame on the traditional solar cell base plate has low corrosion resistance, is not resistant to wear, and is easy to deform, aging and yellowing, which affects the service life and appearance of the entire component. The entire solar energy equipment cannot be integrated with the building, and can only be simply installed on the building, which cannot realize the integration of photovoltaic buildings. The so-called BIPV (Building Integrated PV, PV is Photovolta-ic). Building Integrated Photovoltaic (BIPV) technology is a technology that integrates solar power (photovoltaic) products into buildings. Building-Integrated Photovoltaics (BIPV) is different from the form in which photovoltaic systems are attached to buildings (BAPV: Building Attached PV). In modern society, people's pursuit of a comfortable building thermal environment is getting higher and higher, which leads to the increasing energy consumption of building heating and air conditioning. In developed countries, building energy consumption has accounted for 30%-40% of the country's total energy consumption, which has formed a certain restrictive effect on economic development. BIPV is a new concept of applying solar power generation. Simply put, it is to install solar photovoltaic power generation arrays on the outer surface of the building envelope to provide electricity. According to the different ways of combining photovoltaic arrays and buildings, building integrated photovoltaics can be divided into two categories: one is the combination of photovoltaic arrays and buildings. This method is to attach the photovoltaic array to the building, and the building acts as the carrier of the photovoltaic array and plays a supporting role. The other is the integration of photovoltaic arrays and buildings. In this way, the photovoltaic module appears in the form of a building material, and the photovoltaic array becomes an integral part of the building. Such as photovoltaic tile roof, photovoltaic curtain wall and photovoltaic lighting roof. Among these two methods, the combination of photovoltaic arrays and buildings is a commonly used form, especially the combination with building roofs. Since the combination of photovoltaic arrays and buildings does not occupy additional ground space, it is the best installation method for photovoltaic power generation systems to be widely used in cities, and thus has attracted much attention. The integration of photovoltaic arrays and buildings is an advanced form of BIPV, which has higher requirements for photovoltaic modules. Photovoltaic modules must not only meet the functional requirements of photovoltaic power generation, but also take into account the basic functional requirements of buildings.

Contents of the invention

In order to solve the above problems, the present invention provides an architectural glass capable of generating electricity from solar energy, which can be used in buildings requiring light transmission and can adapt to a wide temperature range. Such architectural glass can not only meet the design requirements of photovoltaic building integration, but also can be used as glass curtain walls and roofs. The outer layer is equipped with a thin stainless steel frame with stronger corrosion resistance and stability than traditional aluminum alloy frames. And can be used for more than 20 years.

A kind of architectural glass that can utilize solar energy to generate electricity, including low-iron tempered glass used as an upper cover and tempered glass used as a lower cover installed correspondingly to the bottom of the low-iron tempered glass of the upper cover, the tempered glass of the lower cover and A series-parallel group of solar cells is installed between the low-iron tempered glass on the upper cover. PVB materials are used to bond between the series and parallel groups of solar cells and the low-iron tempered glass; PVB materials are also used to bond between the series and parallel groups of solar cells and the tempered glass. Moreover, the series-parallel group of solar cells is composed of small cells arranged in an array, and there are gaps between these small cells that can transmit light.

In the architectural glass using solar energy to generate electricity in the present invention, a frame made of thin stainless steel is installed on the outside of the whole assembly. Such a frame has high corrosion resistance and wear resistance, and is not easily deformed, which improves the service life of the entire architectural glass and stability.

The advantage of the present invention is that it abandons the traditional EVA bonding method and uses PVB material as the adhesive. The PVB material has good cohesiveness, toughness and elasticity. With a large amount of energy, the glass fragments will be firmly adhered to the PVB intermediate material, and the glass fragments will not fly away, so that the possible damage is minimized, and it can ensure that the entire building glass that can use solar energy to generate electricity does not crack and can be improved. Traditional equipment of this type is prone to aging and yellowing. The upper cover plate used in the present invention is low-iron toughened glass, which has a light transmittance higher than 92%, and simultaneously has extremely high strength and thermal stability. The present invention also replaces the opaque bottom plate with light-transmitting safety tempered glass. The tempered glass has very high strength, and its safety performance is several times higher than that of ordinary glass. It will not form sharp edges and corners like ordinary glass, but will be broken into small obtuse particles similar to honeycomb, which reduces the harm to the human body. And such tempered glass has very good thermal stability and can withstand a temperature difference that is 2 to 3 times higher than that of ordinary glass. On the outside of the entire architectural glass, there is also a thin stainless steel frame, which has higher strength and stability than the aluminum alloy frame, so that the service life of the entire architectural glass can reach more than 20 years, and it can be used as glass Curtain walls and roofs do not affect daylighting and can make good use of light energy, which is not only environmentally friendly and healthy, but also can reduce power consumption and save resources in line with the design requirements of photovoltaic building integration. The frame of the bottom plate is made of thin stainless steel, which makes it difficult to deform, improves corrosion resistance, and increases the service life of the glass that can use solar power to generate electricity. The entire glass that can generate electricity from solar energy can not only be used as glass curtain walls and roofs, but also can be used as building materials, where it is used in buildings to achieve building-integrated photovoltaics.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the building glass that can utilize solar energy to generate electricity of the present invention;

Fig. 2 is a schematic diagram of the layered structure of the architectural glass in Fig. 1 that can utilize solar energy to generate electricity.

Detailed ways

As shown in Fig. 1, the architectural glass that can utilize solar energy to generate electricity of the present invention comprises light-transmitting low-iron tempered glass 1 used as an upper cover and tempered glass 5 used as a bottom plate, low-iron tempered glass 1 and tempered glass The series-parallel group 3 of solar cells that can convert solar energy into light energy is housed between the 5. As shown in Figure 2, the series-parallel group 3 of solar cells is bonded with the low-iron tempered glass 1 with PVB material 2, and the series-parallel group 3 of solar cells is bonded with the tempered glass 5 with PVB material 4. Here, the use of PVB material has a good effect. Excellent cohesiveness, toughness and elasticity. When the glass is broken by an external force, this layer of material will absorb a large amount of energy, and the glass fragments will be firmly adhered to the PVB intermediate material, and the glass fragments will not fly away. The damage is reduced to a minimum, and it can ensure that the entire building glass that can use solar energy to generate electricity does not crack, and can improve the shortcomings of traditional equipment such as easy aging and yellowing. Among them, the low-iron tempered glass 1 has high strength and thermal stability, and its light transmittance can reach more than 92%, which can greatly improve the light energy conversion rate of the entire solar module. Tempered glass 5 has high safety. When it is broken by a strong external force, it will be broken into a small obtuse honeycomb shape, which reduces the harm to the human body; its physical properties determine that it has high strength, bending resistance and The impact resistance is several times that of ordinary glass, and its thermal stability is also unmatched by ordinary glass. It can withstand temperature changes above 150°C and has an obvious effect on preventing thermal cracking. The series-parallel group of solar cells installed between the low-iron tempered glass 1 and the tempered glass 5 is a battery component that can convert solar energy into electrical energy. As shown in Figure 1, it is composed of neatly arranged small cells. There are gaps between the sheets, allowing sunlight to pass through without affecting lighting. A frame made of thin stainless steel material is provided on the outside of the entire solar glass assembly of the present invention. The frame has strong corrosion resistance and wear resistance, and is not easily deformed, so that the architectural glass that can utilize solar energy to generate electricity in the present invention The service life is increased, and its installation is simplified, which brings convenience to users. In this way, the architectural glass can be used as a glass curtain wall and roof, and can also be used as a building material for the location required by the building to provide it with environmentally friendly energy. It affects lighting in that way, and can also provide energy to the room for heating and lighting, etc., which greatly reduces the consumption of electric energy, and is integrated with the building construction, which meets the design requirements of photovoltaic building integration, saves money, is economical and environmentally friendly, and the energy of the present invention Architectural glass using solar power generation uses PVB material as an adhesive, which broadens its applicable temperature range, brings great convenience to production and life, and uses low-iron tempered glass with extremely high light transmittance1 As the upper cover, the utilization rate of light energy is improved, the performance of the glass capable of generating electricity from solar energy is improved, and it is safer and more practical. The architectural glass that can use solar energy to generate electricity in the present invention uses a thin stainless steel frame outside the overall structure, which improves its wear resistance and corrosion resistance, and is not easily deformed, making installation more convenient and easy. The installation brings great convenience, not only saves time and effort, but also improves its own service life.

Claims (2)

1. the building glass that can utilize solar electrical energy generation is characterized in that, comprises that upper cover plate hangs down iron tempered glass (1); The following correspondence of the low iron tempered glass (1) of described upper cover plate is equipped with lower cover tempered glass (5), between described tempered glass (5) and the low iron tempered glass (1) solar battery sheet connection in series-parallel group (3) is installed; Bonding between described solar battery sheet connection in series-parallel group (3) and the low iron tempered glass (1) with PVB material (2); Bonding between described solar battery sheet connection in series-parallel group (3) and the tempered glass (5) with PVB material (4); Described solar battery sheet connection in series-parallel group (3) is arranged by baby battery chip arrays formula and is formed; Between the described baby battery sheet slit is arranged.

2. the building glass that can utilize solar electrical energy generation according to claim 1 is characterized in that, the described building glass outside is equipped with thin matter stainless steel frame.

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