CN2653026Y - Photoelectric glass curtain wall assembly - Google Patents

Abstract

The utility model discloses a photoelectric glass curtain wall assembly, which comprises a surface layer, a middle layer and a bottom layer, the surface layer is low-iron toughened glass, the middle layer is a solar battery group with lead-out ends, and the upper and lower sides of the solar battery group are respectively provided with encapsulation layers , the bottom layer is the bottom plate material, and the encapsulation layer integrates the surface layer, the middle layer and the bottom layer. As the basic unit of the glass curtain wall, this component looks like a common glass curtain wall piece, but it has the power generation performance that the general glass curtain wall piece does not have. It is a block composite material fused with glass and solar cells. Utilizing the utility model as building materials such as glass curtain walls and roofs not only has the functional characteristics of heat insulation, sound insulation and aesthetics of ordinary glass curtain walls and roofs, but also has the characteristics of power generation, environmental protection, energy saving, safety and pollution-free. It is a new type of building material that integrates the functions of power generation, sound insulation, heat insulation, safety and decoration.

Description

Photoelectric glass curtain wall components

technical field

The utility model belongs to the renewable energy-solar photovoltaic field and the field of building materials, in particular to a photoelectric glass curtain wall assembly.

Background technique

Modern architecture is trying to integrate architecture, ecology and science and technology into one. The solar photovoltaic building system built with photovoltaic glass materials is the embodiment of this concept, and this kind of building is easy to be generally accepted by designers, building owners and consumers.

Photoelectric glass curtain wall is a new type of photoelectric glass curtain wall building material that uses the principle of solar photoelectric conversion to integrate solar photovoltaic technology and architectural glass curtain wall materials. It is used in the construction field and can realize the effective integration of solar photovoltaic technology and buildings.

Solar cells use the principle of photoelectric conversion to convert sunlight energy into electrical energy. Solar cells are connected in series and in parallel to form a photovoltaic group with a certain output voltage and current, and after packaging, they are made into solar cell modules or solar panels as the basic unit of power generation. Photovoltaic modules cooperate with controllers, batteries, inverters and other related equipment to form a solar power generation system. This system has good scalability and is easy to expand from small power generation to large power systems.

Contents of the invention

The purpose of this utility model is to provide a new photoelectric glass curtain wall assembly, which not only has the functional characteristics of heat insulation, sound insulation, and aesthetics of ordinary glass curtain walls and roofs, but also has the functions of power generation, environmental protection, energy saving, safety and pollution-free, etc. It is a new type of building material that integrates power generation, sound insulation, heat insulation, safety, and decoration.

The photoelectric glass curtain wall assembly of the present utility model comprises a surface layer, an intermediate layer and a bottom layer. The bottom plate material, the encapsulation layer integrates the surface layer, the middle layer and the bottom layer.

The photoelectric glass curtain wall component is the basic unit of the glass curtain wall. The component looks like a general glass curtain wall piece, but it has the power generation performance that the general glass curtain wall piece does not have. It is a block composite material fused with glass and solar cells. Utilizing the utility model as building materials such as glass curtain walls and roofs not only has the functional characteristics of heat insulation, sound insulation and aesthetics of ordinary glass curtain walls and roofs, but also has the characteristics of power generation, environmental protection, energy saving, safety and pollution-free. It is a new type of building material that integrates power generation, sound insulation, heat insulation, safety, and decoration.

The utility model can realize the integrated integration of solar photovoltaic power generation and building, saves the land occupation of the solar land power station and the related protection facilities of the power station, and can replace some building materials, relatively independent, and does not need remote wiring and power transmission. It has a large performance-price ratio and has broad prospects.

Description of drawings

Fig. 1 is a structural schematic diagram of a photoelectric glass curtain wall assembly;

Fig. 2 is a schematic diagram of a welding connection of a solar cell;

3 is a schematic layout diagram of a solar battery pack;

Fig. 4 is a schematic diagram of a junction box of a photoelectric glass curtain wall assembly;

Fig. 5 is the schematic diagram that the utility model is used for roof, window eaves, curtain wall;

Fig. 6 is a schematic diagram of an integrated building of a solar power system and a modern building.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described by way of example.

As shown in Figure 1, the photoelectric glass curtain wall assembly is generally a flat square block structure, which is composed of five layers of flat materials: the surface layer 1 is low-iron flat tempered glass; the middle layer 2 is a solar cell group, which is the core of solar power generation Components generally adopt a flat single-layer layout. An encapsulation layer 3 is arranged on the top and bottom of the solar cell group, and two layers of EVA films can be selected for use. The bottom layer 4 is the bottom plate material, which can be tempered glass, transparent or translucent PVC film or other composite materials, which can be flexibly selected according to different building requirements.

The top layer is the surface layer facing the sunlight, and it is also the outermost protective layer of the solar cell group, which needs to have good light transmission, but also needs to have certain hardness and strength. Low-iron tempered glass (less than 0.02% iron content) is usually used, and the light transmittance of most light bands is greater than 92%.

The middle layer is the core component of photovoltaic glass curtain wall components for power generation. It can be composed of multiple monocrystalline silicon or polycrystalline silicon solar cell photovoltaic groups according to certain electrical technical parameters (voltage U, current I, power P, etc.) through series and parallel Methods Weld the positive and negative poles of solar cells to form a solar cell group. Fig. 2 shows a connection diagram of solar cell welding, in which 5 is an extension line formed by a welding strip or a welding wire, 6 is a circuit terminal, and 7 is a frame. The cells are arranged in an array structure, and there is a certain gap distance between the cells. The layout is shown in Figure 3. The encapsulation layers are respectively placed on the upper and lower layers of the solar cell group. The encapsulation is usually made of thin film materials, which have good light transmission, such as anti-aging EVA (ethylene-vinyl acetate polymer) and high-quality TPT (composite fluoroplastics) with good weather resistance. film) material. The packaging material melts into a liquid at high temperature. After melting the liquid, after lamination and vacuuming, the packaging material integrates the top layer, the middle layer and the bottom layer. After cooling, the five layers of materials form an integrated composite material. ——Photoelectric glass curtain wall components. Moreover, it will not separate and fall off between the five layers after reheating, maintaining very stable performance.

The bottom layer is the bottom plate of the optical glass curtain wall assembly, which can be flexibly selected according to different architectural needs. Tempered glass, transparent or translucent PVC film or other composite materials are all available. Among them, the bottom layer is made of tempered glass, and then it is made into a photoelectric glass curtain wall module with double-layer glass structure. The thickness of the glass can be selected from different materials ranging from 2mm to 8mm, and some glass materials with special characteristics, such as transparent or translucent, colorless or various colors, light filtering or heat insulation, etc., can also be selected. In this way, the photoelectric glass curtain wall components with double-layer glass structure also have the above-mentioned different characteristics, forming a series of materials for photoelectric glass curtain walls. The photovoltaic glass module with double-sided glass can reach a life span of 20 years. The bottom layer is made of PVC film or other composite materials (such as TEDLAR, etc.), and then it is made into a photoelectric glass curtain wall assembly with a single-layer glass structure. These materials can be transparent or translucent or opaque, colorless or various based on the characteristics of the selected bottom material. The color and thickness can be different from 0.5mm-5mm. The photoelectric glass curtain wall components with single-sided glass can reach a service life of about 7 years.

The frame of aluminum alloy or other materials can be added to the four sides of the photoelectric glass curtain wall assembly as required, which is both beautiful and protective, and can be made into a photoelectric glass curtain wall assembly with a frame. It is made of anodized high-quality aluminum alloy frame, and the thickness of the aluminum oxide film on the surface is 25 microns. The frame of the module is provided with four sets of screw holes for easy installation and a set of grounding holes, which fully meet the certification requirements of international authoritative organizations. It can also be made into a frameless photoelectric glass curtain wall assembly without the frame material.

Photoelectric glass curtain wall components can also be equipped with junction boxes. At the back edge of the photoelectric glass curtain wall assembly is the extraction end of the positive and negative poles of the battery pack, which can also be used as a terminal. The junction box has a waterproof plug, which has sealing and waterproof functions, and the sealing can prevent the connection of welding strips or welding wires. The end is corroded, and the waterproof can prevent water from invading through the plug of the line and causing a short circuit. The junction box of the module can be designed and manufactured according to the requirements of the current international market for grid-connected power generation. High-quality PP material is used as the junction box shell and inner insulation material, silver-plated copper electrode material is used as the terminal, and two bypasses are configured. diodes to reduce hot spot effects. In this way, the junction box has good sealing and waterproof performance. Among Fig. 4, 9 is electric wire, and 10 is the wire junction box with waterproof plug.

Provide an example of the present utility model below.

The solar cell is made of German ASE polysilicon cell, the specification is 100×150, and the electrical parameters are 1.87Wp, 0.5V, 3.7A; 6 cells are connected in series to form a small photovoltaic module; Double-sided glass photoelectric glass curtain wall components.

The electrical parameters of the sample test are as follows:

The open circuit voltage is: 3.54V

Short circuit current: 3.1A

The power is: 11Wp

The standard test conditions (STC) are:

Spectrum AM 1.5G;

Radiation intensity E=100mW/cm2;

Temperature Tc=25°C;

The utility model can be applied to the following aspects:

1. Replace existing building materials

Photoelectric integrated modern building (BIPV) applies photoelectric glass photovoltaic modules to the field of modern buildings, replacing existing building materials such as roof tiles, asphalt, wall materials, etc., to achieve effective integration of solar photovoltaic technology and building materials, It not only has the characteristics of traditional buildings, but also provides solar power to solve energy problems, and the specific installation and implementation are relatively easy.

2. Photovoltaic glass curtain wall can be installed in the following positions of the building:

a. The wall on the sunny side is the glass curtain wall. Generally, photoelectric glass components without metal frames are used, which can be directly installed on the building frame.

b. Roof facing the sun (sloping roof or flat roof): Generally, photoelectric glass components with metal frames are used, and auxiliary fixing brackets need to be installed on the building for installation.

c. Specific functional structural locations, such as eaves or window eaves for heat insulation and sunshade, generally use photoelectric glass components with metal frames, and auxiliary fixing brackets need to be installed on the building for installation.

When installing, it should be noted that the photoelectric glass module is facing the sun, and no tall buildings or trees can block the sun throughout the day.

3. Applied to new and old buildings

The use of photoelectric glass materials to build photovoltaic building systems, that is, photovoltaic integrated new buildings, is a revolution in architecture and a symbol of modern architecture in the 21st century.

In the design of solar photovoltaic systems in new buildings, photovoltaic glass PV modules are directly installed on the outer skin of the building and are completely integrated with the building. It is very challenging, and the photoelectric glass opens up a new way for the photoelectric advanced curtain wall. There are also many requirements for photovoltaic glass materials. Special specifications and sizes of photovoltaic glass components are required to adapt to and meet the specific requirements of buildings. Different standard solar photovoltaic glass components need to be produced to meet power and other requirements. For example, building materials need to be provided The size of the standard photovoltaic module, or the insulation performance, or the light transmission performance, etc., require the photoelectric glass module to be the same size as the building frame, or require a photoelectric glass module with a larger size than the building frame, and the larger size The edge size of 25mm is set aside. When the module is installed, all four sides are fixed on the building frame. The edge is not sealed. Strict moisture-proof installation must be carried out on the edge of 10mm to prevent moisture from entering from the edge. There is also no requirement for the thickness of the glass. Do the same and so on.

It can be used not only in new buildings, but also in existing buildings. For old buildings, it is often used as a renovation and decoration part of old buildings.

As shown in FIG. 5 , the building adopts photoelectric glass eaves, window eaves 11 , photoelectric glass roof 12 , and photoelectric glass curtain wall 13 , and the photoelectric glass curtain wall components used are connected together through a junction box 14 . In this way, the generated electric energy can be sent to the inverter 15, and then supplied to the building for power supply. Even excess electric energy can be delivered to the grid by inverter 15', ammeter 17.

4. Photovoltaic integrated building power supply system

In the solar power system of buildings, photovoltaic glass components or other photovoltaic components are the core components of solar power generation and one of the most important components in the solar power generation system. Its function is to convert the sun's light energy into Electric energy is directly converted into direct current, which can be directly used by direct current loads or output direct current and stored in batteries for backup.

Connect a number of solar photovoltaic glass components in a certain way, and form a solar power system for buildings with related equipment such as controllers, batteries, and inverters. Photoelectric glass components generate direct current, and form a direct current power system with controllers and batteries. It can be converted into AC power through an inverter, and can provide power for AC loads, such as lights and air conditioners, for solar photovoltaic buildings. The DC can be converted into a single 110V, 220V or three 380V AC through an inverter. The controller is the brain of the solar power system, which is responsible for monitoring and controlling the charging and discharging of the battery by the photovoltaic system. In order to increase the life of the battery, the controller also prevents the battery from being overcharged or deeply discharged.

The building solar power system generates electricity during the day and supplies power during the day and night. Through the connection of standard components, it is easy to expand from a very small power generation to a very large power system. The power system of the building is relatively independent, and does not require remote wiring and power transmission. There is no loss of transmission and wiring circuits, which reduces long-distance transmission. The cost of electricity maintenance, and the inexhaustible surplus electricity of the building can be input into the ordinary grid through grid connection.

The solar photovoltaic system is integrated with the building, which saves the land occupation of the solar land power station and the related protective facilities for the power station, especially when it is combined with the building, it has a very broad prospect.

The schematic diagram of building solar power system is shown in 6. 20 indicates that the direct current generated by the photoelectric glass curtain wall assembly is converted into alternating current through the inverter, and provided to the building for lighting and air conditioning and other electrical appliances; 18 indicates that the remaining electricity is connected to the ordinary power grid to obtain economic benefits.

Claims (5)

1. A photoelectric glass curtain wall assembly, including tempered glass as a surface layer, characterized in that: the photoelectric glass curtain wall assembly also includes an intermediate layer and a bottom layer, the surface layer is low-iron tempered glass, and the intermediate layer is a solar cell with a leading end Group, the top and bottom of the solar battery group are provided with encapsulation layers, the bottom layer is the bottom plate material, and the encapsulation layer integrates the surface layer, the middle layer and the bottom layer. 2. The photoelectric glass curtain wall assembly according to claim 1, characterized in that: the assembly is provided with a frame. 3. The photoelectric glass curtain wall assembly according to claim 1 or 2, characterized in that: the assembly is provided with a sealed and waterproof junction box. 4. The photoelectric glass curtain wall assembly according to claim 3, wherein the bottom plate of the assembly is tempered glass or PVC film. 5. The photovoltaic glass curtain wall assembly according to claim 3, characterized in that: the packaging layer of the assembly is ethylene-vinyl acetate polymer or composite fluoroplastic film.

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