CN203049850U - Solar cell curtain wall - Google Patents

Abstract

The utility model proposes a solar cell curtain wall, which includes a photovoltaic module, the photovoltaic module has a group of solar cells, the solar cells are connected in series by lines, the solar cells are arranged in a flat manner, and there is a light guide plate between the solar cells , the light guide plate is connected to the edge of the solar cell, and separates adjacent solar cells to improve the light transmittance of the solar cell curtain wall; the solar cell is served by CIGS or other thin film cells; the light guide plate is made of float white glass serve as. There are transparent support plates on both sides of the photovoltaic module, and the transparent support plate clamps the photovoltaic module to keep the structure of the photovoltaic module stable; the transparent support plate is made of ultra-clear tempered glass. The transparent support plate and the photovoltaic module are bonded by structural glue. The curtain wall is equipped with a light guide plate between the cells, which solves the problem that thin-film cells such as CIGS need to use laser anti-reflection technology to improve the overall light transmission, and avoids the resulting increase in production costs and lower component power.

Description

Solar cell curtain wall

technical field

The utility model relates to a solar cell application technology, in particular to a solar cell curtain wall.

Background technique

The rapid development of solar cell technology, especially thin-film solar cells has made a leap that has attracted worldwide attention, among which CIGS (copper indium gallium selenide) thin-film cells are the best in thin-film. CIGS thin-film solar cell is a chalcopyrite crystalline thin-film solar cell composed of Cu (copper), In (indium), Ga (gallium), and Se (selenium) with the best ratio. It is the key technology for forming solar panels. Because the product has many advantages such as strong light absorption capacity, good power generation stability, high conversion efficiency, long daytime power generation time, high power generation, low production cost and short energy recovery cycle. The cost of thin-film solar cells is relatively low, there is a large space for cost reduction, and the conversion efficiency is also increasing rapidly. Especially in the field of photovoltaic building integration, CIGS thin-film solar cells have incomparable advantages. CIGS thin-film solar cells are superior to all other solar cells in low-light power generation performance. Considering that most developed cities in China are in the second-class or above areas of solar energy distribution, most of the light received by building glass curtain walls is scattered light. Therefore, CIGS solar cells are better than other solar cells. Other solar cells are more suitable as building glass curtain wall. Thin-film solar cells realize the perfect combination of photovoltaic power generation and buildings, which can not only generate electricity, but also replace building materials, and also have aesthetic effects. The use of thin-film solar cells in the construction industry will become a new trend in the future, especially light-transmitting thin-film cells have their unique market in building curtain walls and building skylights.

Solar cell modules used in building curtain walls and skylights require light-transmitting components, while crystalline silicon light-transmitting components have low efficiency due to poor temperature rise effect and poor light performance, while other thin-film light-transmitting components need to pass laser anti-reflection technology, resulting in low-efficiency transmission. Optical components become less efficient and cost more. Therefore, it is necessary to optimize the installation structure of thin-film solar cells in building curtain walls in order to improve the light energy conversion efficiency of solar cell curtain walls.

Utility model content

The purpose of the utility model is to provide a solar cell curtain wall, which improves the light transmittance of the curtain wall, thereby improving the working efficiency of the solar cell.

The technical scheme that the utility model adopts for solving its technical problem is,

The solar cell curtain wall includes a photovoltaic module. The photovoltaic module has a group of solar cells, and the solar cells are connected in series by lines. The solar cells are arranged in a flat manner. The edges of the sheets are connected to separate adjacent solar cells to improve the light transmittance of the solar cell curtain wall; the solar cells are served by CIGS or other thin film cells; the light guide plate is served by float white glass.

There are transparent support plates on both sides of the photovoltaic module, and the transparent support plate clamps the photovoltaic module to keep the structure of the photovoltaic module stable; the transparent support plate is made of ultra-clear tempered glass.

The transparent support plate and the photovoltaic module are bonded by structural adhesive; the structural adhesive is acted by PVB film (PolyVinyl Butyral Film, polyvinyl butyral film).

There can be more than one light guide plate located between adjacent solar cells.

Ultra-clear glass is a kind of ultra-transparent low-iron glass, also known as low-iron glass and high-transparency glass, with a light transmittance of over 91.5%. Ultra-clear glass has all the processability of high-quality float glass at the same time, with superior physical, mechanical and optical properties, and can be processed in various deep processing like other high-quality float glass. The curtain wall uses ultra-white glass as a support plate and a light guide plate, which greatly improves the light transmittance of the curtain wall.

The utility model has the advantage that the curtain wall sets float white glass between the battery sheets as a light guide plate, which overcomes the problem that thin-film batteries such as CIGS need to use laser anti-reflection technology to improve the overall light transmittance in the past, thereby avoiding the problem caused by This results in problems such as increased production costs and reduced component power.

Description of drawings

Fig. 1 is the structural representation of the solar cell curtain wall that the utility model proposes;

Fig. 2 is a schematic plan view of the photovoltaic module in the curtain wall.

Detailed ways

In order to make the technical means, creative features, goals and effects achieved by the utility model easy to understand, the utility model will be further elaborated below in combination with illustrations and specific embodiments.

As shown in Figure 1, the solar cell curtain wall proposed by the utility model includes a photovoltaic module 1, and the photovoltaic module 1 has a group of solar cells 11, and the solar cells 11 are connected in series by lines, and each solar cell 11 is arranged in a tiled manner. There is a light guide plate 12 between the solar cells 11, and the light guide plate 12 is connected to the edge of the solar cell 11 to improve the light transmittance of the solar cell curtain wall; the solar cell 11 is served by CIGS or other thin film cells; the light guide plate 12 is served by ultra-white glass.

There are transparent support plates 2 on both sides of the photovoltaic module 1, and the transparent support plates 2 clamp the photovoltaic module 1 to keep the structure of the photovoltaic module 1 stable; the transparent support plate 2 is made of ultra-clear tempered glass.

The transparent support plate 2 and the photovoltaic module 1 are bonded by a structural adhesive 3; the structural adhesive 3 is acted by a PVB adhesive film; there can be more than one light guide plate 12 located between the solar cells 11.

In this embodiment, the curtain wall adopts a layout method in which float white glass of the same size is inlaid between 622×317mm CIGS thin-film cells to increase the overall light transmission. The packaging method includes 951×622×6mm ultra-clear tempered glass, PVB film, CIGS thin film cells on both sides, middle float white glass, PVB film and 6mm ultra-clear tempered glass.

The curtain wall adopts float white glass as a light guide plate between the cells, which overcomes the problem that CIGS and other thin-film cells need to use laser anti-reflection technology to improve the overall light transmission, thereby avoiding the resulting increase in production costs, Component power reduction and other issues.

The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the industry should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. The utility model does not depart from the spirit and scope of the utility model There will also be various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (8)

1. The solar cell curtain wall includes a photovoltaic module, the photovoltaic module has a group of solar cells, and the solar cells are connected in series by lines. , the light guide plate is connected to the edge of the solar cells, and separates the adjacent solar cells to improve the light transmittance of the solar cell curtain wall. the 2. The solar cell curtain wall according to claim 1, characterized in that, the solar cells are served by CIGS thin film cells. the 3. The solar cell curtain wall according to claim 1, wherein the light guide plate is made of float white glass. the 4. The solar cell curtain wall according to claim 1, wherein transparent support plates are provided on both sides of the photovoltaic module, and the transparent support plates clamp the photovoltaic module to keep the structure of the photovoltaic module stable. the 5. The solar cell curtain wall according to claim 4, wherein the transparent support plate is made of ultra-clear tempered glass. the 6. The solar cell curtain wall according to claim 4, characterized in that, the transparent support plate and the photovoltaic module are bonded by structural adhesive. the 7. The solar cell curtain wall according to claim 6, characterized in that, the structural adhesive is acted by PVB adhesive film. the 8. The solar cell curtain wall according to claim 1, wherein there is more than one light guide plate located between adjacent solar cell sheets. the

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