CN205224350U - Tripe formula photovoltaic building facade and tripe formula photovoltaic curtain wall - Google Patents

Abstract

The utility model relates to a louver-type photovoltaic building facade and a louver-type photovoltaic curtain wall, wherein the louver-type photovoltaic building facade includes a building exterior wall and a photovoltaic module arranged outside the building exterior wall, and the photovoltaic module includes a module frame and a photovoltaic module arranged on the module frame. A plurality of louvered photovoltaic sheets on the screen, and the louvered photovoltaic sheets are connected to the component frame through the rotating shaft; the louvered photovoltaic curtain wall includes the component frame and the louvered photovoltaic sheet fixed on the component frame through the rotating shaft. Compared with the prior art, the utility model can adjust the inclination angle of the photovoltaic battery panel by adjusting the inclination angle of the louver-type photovoltaic sheet, utilize sunlight to generate electricity to the greatest extent, and improve power generation efficiency.

Description

Louvered Photovoltaic Building Facade and Louvered Photovoltaic Curtain Wall

technical field

The utility model relates to the field of photovoltaic building facades, in particular to a louvered photovoltaic building facade and a louvered photovoltaic curtain wall.

Background technique

Photovoltaic building is a multi-functional building form developed in recent years that uses solar power to power buildings. Combining photovoltaic panels with buildings, especially high-rise buildings, and using the huge facade area of high-rise buildings to absorb solar energy to provide power for buildings to alleviate the problem of electricity shortage in cities, especially large and medium-sized cities, is a current development direction with broad prospects.

For example, Chinese patent CN102587545A discloses a photovoltaic building glass curtain wall assembly, including solar cells, glass substrates, glass backplanes, battery interlayers, glass substrates, battery interlayers, solar cells, battery interlayers, and glass backplanes from bottom to top Arranged in sequence, the solar cells are respectively connected to the glass substrate and the glass backplane through the battery interlayer.

However, in addition to solar irradiance, the inclination angle of the light-receiving surface is required to maximize the power generation efficiency of photovoltaic panels. The optimal inclination angle of photovoltaic panels varies with the latitude, season, and time of day. Although the facades of buildings, especially high-rise buildings, have a large area, traditional building facades are vertical to the ground. The photovoltaic panels of the above-mentioned photovoltaic building glass curtain wall components are parallel to the building facades, and the inclination angle is 0, which is not the best inclination angle. The solar radiation will be greatly reduced.

Utility model content

The purpose of this utility model is to overcome the defects of the above-mentioned prior art and provide a louvered photovoltaic building facade that solves the problem of the inclination angle of the building facade photovoltaic curtain wall and utilizes solar energy more efficiently without spending a high cost. and louvered photovoltaic curtain wall.

The purpose of this utility model can be achieved through the following technical solutions:

A louver-type photovoltaic building facade, including a building exterior wall and a photovoltaic module arranged on the outside of the building exterior wall, the photovoltaic module includes a module frame and a plurality of louver-type photovoltaic sheets arranged on the module frame, and the louver-type The photovoltaic sheet is connected to the module frame through a rotating shaft.

There is an air channel for air circulation between the photovoltaic module and the building exterior wall, and the air enters the air channel from the gap between the louvered photovoltaic sheets.

The bottom of the air channel is provided with a sealing strip for isolating air.

The photovoltaic building facade also includes a controller for adjusting the inclination angle of the louver-type photovoltaic sheet, and the controller is connected with the rotating shaft.

The controller is fixed on the component frame.

The controller is arranged in the photovoltaic building.

The photovoltaic building facade also includes an airflow guiding device for accelerating the gas flow velocity in the air flow channel, and the air flow guiding device is connected with the air flow channel.

A louvered photovoltaic curtain wall, comprising:

Component Framework;

The louver photovoltaic sheet is fixed on the module frame through the rotating shaft.

The louver-type photovoltaic curtain wall also includes a controller for adjusting the inclination of the louver-type photovoltaic sheet, and the controller is arranged on the component frame and connected with the rotating shaft.

Compared with the prior art, the utility model has the following advantages:

1) By adjusting the inclination angle of the louvered photovoltaic sheet, the inclination angle of the photovoltaic cell panel can be adjusted to maximize the use of sunlight to generate electricity and improve power generation efficiency. There is no shelter outside the louvered photovoltaic sheet, and it directly faces the sun, which has a good lighting effect.

2) The air flowing in the air channel can take away the heat generated by the photovoltaic cells at the same time to ensure the good working condition of the photovoltaic cells. Compared with the photovoltaic curtain wall of the existing building facade, it has a better power generation effect. The gap between the photovoltaic sheets enters the air flow channel, which can achieve good convection with the external ambient air.

3) The bottom of the air channel is provided with a sealing strip for isolating the air, forcing the air to enter only through the gaps between the louvered photovoltaic sheets in a dispersed manner, and the convection effect is better.

4) The movable baffle can reduce convection in winter to form a building air insulation layer, and the air insulation layer obtained with closed louver photovoltaic sheets can keep the building warm, reduce the winter thermal air conditioning load, or even use no air conditioning. Reducing the amount of air-conditioning can greatly reduce the growth of indoor bacteria and various respiratory diseases caused by air-conditioning.

5) The controller can automatically adjust the inclination angle of the louvered photovoltaic sheet according to the dimension, season, and even the height of the day's sunshine, which is convenient and practical.

6) The airflow guiding device can speed up the gas flow rate in the air channel in summer to take away more heat, so as to achieve comfortable effect with less or no air conditioner in summer, and avoid direct sunlight to achieve good lighting effect.

7) The method of integrating the module frame, the louver photovoltaic sheet and the controller to form a photovoltaic curtain wall realizes factory production, reduces the difficulty of on-site installation, has high production efficiency, and is convenient for quality control.

Description of drawings

Fig. 1 is the perspective structure schematic diagram of the utility model louver type photovoltaic building facade;

Fig. 2 is A-A sectional view of Fig. 1;

Among them: 1. Building exterior wall, 2. Photovoltaic module, 3. Rotation shaft, 4. Bolt, 5. Aluminum alloy hanging seat horizontal profile, 6. Vertical aluminum alloy profile, 7. Air flow channel outlet, 8. Air flow Road, 9, louver photovoltaic sheet, 10, air channel inlet.

detailed description

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the utility model, and the detailed implementation and specific operation process are given, but the protection scope of the utility model is not limited to the following examples.

A louvered photovoltaic building facade, as shown in Figure 1 and Figure 2, includes a building exterior wall 1 and a photovoltaic module 2 arranged on the outside of the building exterior wall 1, and the photovoltaic module includes a module frame and a plurality of modules arranged on the module frame The louvered photovoltaic sheet 9 is connected to the component frame through the rotating shaft 3 . Among them, the types of building exterior walls 1 can be maintenance walls and load-bearing walls, and can also be traditional glass curtain walls and windows; the louvered photovoltaic sheet 9 consists of louver blades with photovoltaic cells and their accessories.

There is an air channel 8 for air circulation between the photovoltaic module 2 and the building exterior wall 1, and the air enters the air channel 8 from the gap between the louvered photovoltaic sheets 9, and the gap between the louvered photovoltaic sheets 9 is Air runner inlet. The louvered photovoltaic sheet 9 will generate heat while receiving sunlight to generate electricity, and the increase in temperature will reduce its power generation efficiency. Air enters the air channel 8 from the gap between the louvered photovoltaic sheet 9, and the air in the air channel 8 is The thermal radiation of the louvered photovoltaic sheet 9 and the ambient air flow rise, and are discharged from the upper gap to the external environment, thereby taking away excess heat of the louvered photovoltaic sheet 9 . Therefore, the louvered photovoltaic sheet 9 can work under a better solar irradiation angle, and its open form can take away excess heat from the surrounding air without causing the temperature rise to be too high, thereby ensuring the efficient operation of the photovoltaic cell.

The photovoltaic module 2 is set on the exterior wall 1 of the building through the aluminum alloy hanger horizontal profile 5 and the vertical aluminum alloy profile 6, and is fixed by bolts 4 and corner brackets.

The bottom of the air flow channel 8 can optionally be provided with a sealing strip for isolating the air, forcing the air to only diffusely enter from the gaps between the louvered photovoltaic sheets 9 instead of entering from the bottom of the air flow channel 8, so that the air flow is close to the louvers Type photovoltaic sheet 9 is more conducive to taking away heat.

The photovoltaic building facade also includes a controller for adjusting the inclination angle of the louvered photovoltaic sheet 9 , and the controller is connected with the rotating shaft 3 . The controller can be fixed on the module frame or placed in the photovoltaic building. The controller can automatically adjust the inclination angle of the louvered photovoltaic sheet 9 according to the latitude, season, and even the sunshine height of a day, which is convenient and practical, and can be combined with the sun angle tracking system to realize automatic tracking control of the optimal inclination angle. The louvered photovoltaic sheet 9 can generate power with the highest efficiency when receiving sunlight, greatly improving the utilization rate of solar energy. In addition, in this application, the photovoltaic module 2 and the controller can be combined as a louvered photovoltaic curtain wall.

The photovoltaic building facade also includes an airflow guiding device for accelerating the gas flow velocity in the air flow channel 8 , and the air flow guiding device is connected with the air flow channel 8 .

Specifically, the louver-type photovoltaic sheet 9 can be fixed on the column of the sub-frame of the curtain wall by the control shaft, and the rotation shaft 3 can be connected with a mechanical control device to realize manual control or electric control of the inclination angle of its louvers, or it can be installed at a local optimal inclination angle Fixed to achieve the best power generation efficiency under non-control.

The louvered photovoltaic sheet 9 can be made according to the ordinary photovoltaic panel production method, and the generated current can be derived from the wire. The width of the louver and the position of laying the battery sheet can be calculated from the local sun inclination. It is necessary to avoid shadows caused by overlapping of the louvered photovoltaic sheets 9 .

When the louvered photovoltaic sheets 9 are opened, the gaps between them can fully circulate the air between the external environment and the gap between the building exterior wall 1 and the photovoltaic curtain wall, and can take away the heat generated by the photovoltaic panels in time, which is beneficial to The louvered photovoltaic sheet 9 maintains an efficient working condition. At night or in winter, the louvered photovoltaic sheet 9 can be closed to block the convection between the air between the building exterior wall 1 and the photovoltaic curtain wall and the external ambient air, and play the role of heat insulation.

Photovoltaic curtain walls can be made into units, or customized according to specific shapes. When made into a unit type, the louvered photovoltaic sheet 9 and its component frame form a unit, which has an independent junction box and lead wires. An air outlet/air inlet can be set between the photovoltaic curtain wall unit and the unit, and the air outlet/air inlet can also be manually controlled to open and close to intervene in air convection.

The louvered photovoltaic curtain wall can control the opening and closing angle, realize the sunshade effect in summer, and reduce the air-conditioning load caused by the excessive temperature rise of the building due to direct sunlight. The convective air inside and outside can also take away excess heat and slow down the temperature rise of the building.

The incidence angle of the sun varies greatly with the local latitude, season, morning and evening, and the power generation efficiency of photovoltaic cells is greatly affected by the incidence angle of the sun. The best power generation effect is when the sun's incident light is perpendicular to the photovoltaic panel. Although the exterior wall 1 of a building, especially a high-rise building, has a large area, the facade perpendicular to the ground is not the best inclination angle for photovoltaic cells to generate electricity. The photovoltaic cell panels of the present application are made in the form of louvers, installed in the supporting frame, and their opening and closing angles can be adjusted so that the cells face the sunlight at an optimal angle, thereby achieving the best power generation effect.

The opening and closing of the louvered photovoltaic sheet 9 can not only obtain a better angle of sunlight, but also control the convection velocity between the air between the building facade and the photovoltaic curtain wall and the air in the external environment to achieve a breathable building. . In hot summer, excess heat can be taken away by accelerating air convection, and in cold winter, the louvered photovoltaic sheet 9 can be closed to make the air between the double-layer facades form an air insulation layer and play a role in heat preservation. The louvered photovoltaic sheet 9 cooperates with the building ventilation device to realize multiple air convection and adjust the building temperature.

The louvered photovoltaic sheet 9 is also a kind of sunshade device while obtaining the best inclination angle to generate electricity. It plays a role in blocking direct sunlight on the outside of the facade window, and can create a comfortable working and living environment for the building.

By setting louvered photovoltaic sheets 9 on the building exterior wall 1, on the one hand, it can receive solar power and supply power to the building, which can save traditional petrochemical energy, protect resources, and reduce carbon emissions; on the other hand, it can be used as building exterior decoration, which is both a function The component is also a decorative component, which changes the pure and beautiful use of traditional building exterior decoration; in addition, the reduction effect of the air-conditioning load can reduce the traditional energy consumption and the negative environmental impact brought by various air-conditioning.

Claims (9)

1. a louvered photovoltaic building facade, comprise external wall (1) and be located at the photovoltaic module (2) in external wall (1) outside, it is characterized in that, described photovoltaic module comprises component framework and is located at the multiple louvered photovoltaic fin on component framework, and described louvered photovoltaic fin is connected with component framework by turning cylinder (3).

2. a kind of louvered photovoltaic building facade according to claim 1, it is characterized in that, have the air flow channel (8) for air circulation between described photovoltaic module (2) and external wall (1), and the gap of air between louvered photovoltaic fin enters air flow channel (8).

3. a kind of louvered photovoltaic building facade according to claim 2, is characterized in that, the bottom of described air flow channel (8) is provided with the weather strip for isolated air.

4. a kind of louvered photovoltaic building facade according to claim 1, it is characterized in that, described photovoltaic building facade also comprises the controller for adjusting louvered photovoltaic fin inclination angle, and this controller is connected with turning cylinder (3).

5. a kind of louvered photovoltaic building facade according to claim 4, it is characterized in that, described controller is fixed on component framework.

6. a kind of louvered photovoltaic building facade according to claim 4, it is characterized in that, described controller is placed in photovoltaic building.

7. a kind of louvered photovoltaic building facade according to claim 1, it is characterized in that, described photovoltaic building facade also comprises the airflow guiding device for accelerating gas flow rate in air flow channel (8), and this airflow guiding device is connected with air flow channel (8).

8. a louvered photovoltaic curtain wall, is characterized in that, comprising:

Component framework;

Louvered photovoltaic fin, is fixed on component framework by turning cylinder (3).

9. a kind of louvered photovoltaic curtain wall according to claim 8, is characterized in that, described louvered photovoltaic curtain wall also comprises the controller for adjusting louvered photovoltaic fin inclination angle, and this controller to be located on component framework and to be connected with turning cylinder (3).