Method for improving thermoelectric performance of photovoltaic glass used as an exterior window

Abstract

The application is a method for improving the thermoelectric performance of photovoltaic glass used as an external window, which comprises installing photovoltaic glass on an integrated hollow window frame with a wind port and connecting a bidirectional cross-flow fan to the integrated hollow window frame; when the indoor temperature is higher than the outdoor temperature, the indoor air is continuously discharged through the wind port of the integrated hollow window frame by the bidirectional cross-flow fan, and in this process, the flowing indoor air absorbs the heat on the surface of the photovoltaic glass and discharges it; when the indoor temperature is lower than the outdoor temperature, the outdoor air is sent into the room through the wind port of the integrated hollow window frame by the bidirectional cross-flow fan, and in this process, the flowing outdoor air flow carries the heat on the surface of the photovoltaic glass into the room. The method can reduce the surface temperature of the photovoltaic glass to improve the photoelectric conversion efficiency, reduce the cooling and heating load of the indoor air conditioner through air discharge and supply, and improve the overall aesthetics by connecting the photovoltaic glass connection line in a concealed manner and improving the uniformity of lighting.

Description

Technical Field

[0001] This invention belongs to the field of building construction technology, and particularly relates to energy-saving and environmentally friendly construction, specifically a method for improving the thermoelectric performance of photovoltaic glass when used as an exterior window. Background Technology

[0002] Photovoltaic (PV) glass, also known as photovoltaic glass, is a special type of glass that generates electricity using solar radiation and includes related current extraction devices and cables. PV glass typically consists of glass, solar cells, film, back glass, and special metal conductors. It has a wide range of applications, such as solar smart windows, solar pavilions, photovoltaic glass building roofs, and photovoltaic glass curtain walls.

[0003] When photovoltaic glass is used as an exterior window, the following problems exist: 1) After photovoltaic glass is used as an exterior window for a long time, the surface temperature of the photovoltaic glass will be higher than the normal operating temperature, thus affecting its photoelectric conversion efficiency.

[0004] 2) When photovoltaic glass is used as an exterior window, the heat generated during its operation lacks effective utilization, resulting in a waste of energy resources.

[0005] 3) Photovoltaic power generation glass has many connecting wires, and the existing window frame structure cannot meet the installation requirements of the connecting wires, affecting its aesthetics and lighting. Summary of the Invention

[0006] The purpose of this invention is to address the problems existing in the prior art by providing a method for improving the thermoelectric performance of photovoltaic glass when used as an exterior window. This method reduces the surface temperature of the photovoltaic glass to improve photoelectric conversion efficiency, while utilizing a special structural design to reduce the cooling and heating load of indoor air conditioning through exhaust and ventilation, thereby improving indoor occupant comfort and energy conservation. Simultaneously, the photovoltaic glass connection wires are concealed, improving overall aesthetics and enhancing the uniformity of light transmission.

[0007] This invention is achieved through the following technical solution: A method for improving the thermoelectric performance of photovoltaic glass when used as an exterior window includes the following steps: S1. Fabricate an integrated hollow window frame with a hollow interior design, and install photovoltaic power generation glass on the integrated hollow window frame. The photovoltaic power generation glass is used to convert absorbed solar energy into electrical energy and heat energy. Arrange the battery connection wires on the photovoltaic power generation glass in the hollow part inside the integrated hollow window frame to avoid the connection wires being exposed and affecting the aesthetics and lighting of the window. Evenly distribute several air vents on the side frame wall of the integrated hollow window frame facing the photovoltaic power generation glass. The integrated hollow window frame and the air vents on it are used to complete the air transportation process and play the role of airflow duct. S2. Fabricate a fan mounting bracket and install a bidirectional cross-flow fan on the fan mounting bracket. The bidirectional cross-flow fan is used to complete the airflow direction control process. S3. Connect the integrated hollow window frame to the inlet and outlet of the bidirectional cross-flow fan, so that the hollow part inside the integrated hollow window frame is connected to the inlet and outlet of the bidirectional cross-flow fan; by changing the power and airflow direction of the bidirectional cross-flow fan, air is delivered to the indoor or outdoor through the integrated hollow window frame and its air outlet. S4. When the indoor temperature is higher than the outdoor temperature, the bidirectional cross-flow fan is activated. The indoor air is continuously discharged to the outside through the integrated hollow window frame and the air vents on it under the suction of the bidirectional cross-flow fan. During this process, the indoor air flows on the surface of the photovoltaic glass, absorbs heat, reduces the heat transfer from the surface of the photovoltaic glass to the indoor environment, and improves the photovoltaic power generation efficiency. S5. When the indoor temperature is lower than the outdoor temperature, the bidirectional cross-flow fan is started. Outdoor air is continuously supplied into the room through the integrated hollow window frame and its air vents under the suction of the bidirectional cross-flow fan. During this process, the outdoor air flows on the surface of the photovoltaic glass, bringing the heat from the photovoltaic glass surface into the room, reducing the preheating load of fresh air and improving the efficiency of photovoltaic power generation.

[0008] As a preferred technical solution, both the fan mounting bracket and the integrated hollow window frame are equal-sized grid-shaped frames, and the four corners of the fan mounting bracket are connected and fixed to the four corners of the integrated hollow window frame.

[0009] As a preferred technical solution, the bidirectional cross-flow fan is installed at the center of the fan mounting frame and between the fan mounting frame and the integrated hollow window frame.

[0010] As a preferred technical solution, a photovoltaic power generation glass is installed in each space of the integrated hollow window frame.

[0011] As a preferred technical solution, the battery connection lines of different photovoltaic power generation glass on the integrated hollow window frame are connected in parallel or in series through connectors inside the integrated hollow window frame.

[0012] Compared with the prior art, the beneficial effects of the method of the present invention are as follows: 1) The method of this invention achieves the objectives of reducing indoor air conditioning heating and cooling load, improving indoor occupant comfort, and reducing the surface temperature of photovoltaic glass. The bidirectional cross-flow fan and integrated hollow window frame structure discharge high-temperature indoor air through the air vents and the integrated hollow window frame, reducing the indoor air conditioning load, improving occupant comfort, and simultaneously lowering the surface temperature of the photovoltaic glass, thus improving its photoelectric conversion efficiency. When the indoor temperature is low, the bidirectional cross-flow fan and integrated hollow window frame structure bring outdoor air into the room through the air vents and the integrated hollow window frame. The air brought into the room carries the heat from the photovoltaic glass surface into the room, reducing the indoor air conditioning heat load, improving occupant comfort, and achieving good economic benefits.

[0013] 2) The method of the present invention achieves the purposes of solar energy utilization and waste heat utilization during photovoltaic power generation glass operation. The bidirectional cross-flow fan, integrated hollow window frame and other structures can reduce the surface temperature of photovoltaic power generation glass to improve photoelectric conversion efficiency, while using exhaust and air supply to reduce the cooling and heating load of indoor air conditioning and reduce air conditioning energy consumption. It not only has good economic benefits, but also has considerable social and environmental benefits.

[0014] 3) The method of the present invention achieves the purpose of connecting the battery wires of the concealed photovoltaic power generation glass, improves the overall aesthetics of the exterior window, and improves the uniformity of the light passing through the exterior window. Attached Figure Description

[0015] The accompanying drawings, which are provided to further illustrate the invention and form part of this application, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention.

[0016] Figure 1 This is an overall schematic diagram of the related device structure used in the method of the present invention.

[0017] Figure 2 This is a schematic diagram showing the connection between the bidirectional cross-flow fan and the fan mounting frame in the method of the present invention.

[0018] Figure 3 This is a schematic diagram showing the connection between the photovoltaic power generation glass, the integrated hollow window frame, and the air vent in the method of the present invention.

[0019] In the diagram: 1-Air outlet; 2-Fan mounting bracket; 3-Battery connection cable; 4-Integrated hollow window frame; 5-Bidirectional cross-flow fan; 6-Photovoltaic power generation glass. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present invention, the present invention will be further described clearly and completely below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0021] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0022] A method for improving the thermoelectric performance of photovoltaic glass when used as an exterior window includes the following steps: S1. Fabricate an integrated hollow window frame 4 with a hollow interior design. The integrated hollow window frame 4 adopts a grid-like frame, and four photovoltaic power generation glass panels 6 are installed in the four empty spaces on the integrated hollow window frame 4. The photovoltaic power generation glass panels 6 are used to convert absorbed solar energy into electrical energy and heat energy. The battery connection wires 3 of each photovoltaic power generation glass panel 6 are arranged in the hollow part inside the integrated hollow window frame 4 and connected in parallel or series with connectors to avoid exposed installation of the connection wires, which would affect the aesthetics and lighting of the window. Several air vents 1 are evenly distributed on each side frame wall of the integrated hollow window frame 4 facing the photovoltaic power generation glass panels 6. The integrated hollow window frame 4 and the air vents 1 are used to complete the air transportation process, acting as airflow ducts. In this step, the connection structure of the photovoltaic power generation glass panels 6, the integrated hollow window frame 4, and the air vents 1 is as follows: Figure 3 As shown.

[0023] S2. Fabricate the fan mounting frame 2, which is also a grid-shaped frame the same size as the integrated hollow window frame 4. Install a bidirectional cross-flow fan 5 at the center of the fan mounting frame 2. The bidirectional cross-flow fan 5 is used to control the airflow direction. In this step, the connection structure between the fan mounting frame 2 and the bidirectional cross-flow fan 5 is as follows: Figure 2 As shown.

[0024] S3. Connect and fix the four corners of the fan mounting bracket 2 to the four corners of the integrated hollow window frame 4, so that the bidirectional cross-flow fan 5 is located between the fan mounting bracket 2 and the integrated hollow window frame 4; connect the integrated hollow window frame 4 to the inlet and outlet of the bidirectional cross-flow fan 5, so that the hollow part inside the integrated hollow window frame 4 is connected to the inlet and outlet of the bidirectional cross-flow fan 5; by changing the power and airflow direction of the bidirectional cross-flow fan 5, air is delivered to the indoor or outdoor area through the integrated hollow window frame 4 and the air outlet 1 on it. In this step, the connection structure of the photovoltaic power generation glass 6, the integrated hollow window frame 4, the fan mounting bracket 2, and the bidirectional cross-flow fan 5 is as follows: Figure 1 As shown.

[0025] S4. In summer, when the indoor temperature is high, the bidirectional cross-flow fan 5 is started. The indoor air is continuously discharged to the outside through the integrated hollow window frame 4 and the air outlet 1 on it under the suction of the bidirectional cross-flow fan 5. During this process, the indoor air flows on the surface of the photovoltaic glass 6, absorbs heat, reduces the heat transfer from the surface of the photovoltaic glass 6 to the room, and improves the photovoltaic power generation efficiency.

[0026] S5. In winter, when the indoor temperature is low, the bidirectional cross-flow fan 5 is started. Outdoor air is continuously supplied into the room through the integrated hollow window frame 4 and the air outlet 1 on it under the suction of the bidirectional cross-flow fan 5. During this process, the outdoor air flows on the surface of the photovoltaic power generation glass 6, bringing the heat from the surface of the photovoltaic power generation glass 6 into the room, reducing the preheating load of fresh air and improving the photovoltaic power generation efficiency.

[0027] S6. During the transition season, adjust the airflow direction of the bidirectional cross-flow fan 5 according to the changes in indoor and outdoor temperatures. When the indoor temperature is lower than the outdoor temperature, the winter operation mode of step S5 is adopted; when the indoor temperature is higher than the outdoor temperature, the summer operation mode of step S4 is adopted.

[0028] In the aforementioned method for improving the thermoelectric performance of photovoltaic glass when used as an exterior window, the photovoltaic glass 6, as a light-transmitting photovoltaic glass unit, converts absorbed solar energy into electrical and thermal energy; the integrated hollow window frame 4 and its air vent 1 act as an air delivery unit to complete the air flow and distribution process; the bidirectional cross-flow fan 5 and the fan mounting bracket 2 act as an air flow direction control unit to adjust the air flow direction, exhausting indoor air to the outside when the indoor temperature is high and sending outdoor air into the room when the indoor temperature is low; the inlet and outlet of the bidirectional cross-flow fan 5 are connected to the integrated hollow window frame 4... The internal hollow section and the air vent 1 are connected. The airflow direction between the surface of the photovoltaic glass 6 and the indoor space is controlled by changing the airflow direction inside the bidirectional cross-flow fan 5. That is, the bidirectional cross-flow fan 5 changes the air pressure inside the integrated hollow window frame 4 by changing the direction of the airflow. By changing the air pressure inside the integrated hollow window frame 4, the airflow direction at the air vent 1 is changed. The battery connection line 3 on the photovoltaic glass 6 is concealed to the internal hollow section of the integrated hollow window frame 4, making the window more beautiful and improving the uniformity of lighting.

[0029] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A method for improving the thermoelectric performance of photovoltaic glass when used as an exterior window, characterized in that, Includes the following steps: S1. Construct an integrated hollow window frame (4) with a grid-like frame structure and a hollow interior. Install four photovoltaic power generation glass (6) in the four empty spaces of the integrated hollow window frame (4). The photovoltaic power generation glass (6) is used to convert the absorbed solar energy into electrical energy and heat energy. Arrange the battery connection wire (3) on the photovoltaic power generation glass (6) in the hollow part inside the integrated hollow window frame (4) to avoid the connection wire being exposed. Evenly distribute several air vents (1) on each side frame wall of the integrated hollow window frame (4) facing the photovoltaic power generation glass (6). The integrated hollow window frame (4) and the air vents (1) on it are used to complete the air transportation process and play the role of airflow duct. S2. Make a grid-shaped fan mounting bracket (2) the same size as the integrated hollow window frame (4), connect and fix the four corners of the fan mounting bracket (2) to the four corners of the integrated hollow window frame (4), install a bidirectional cross-flow fan (5) at the center of the fan mounting bracket (2), the bidirectional cross-flow fan (5) is located between the fan mounting bracket (2) and the integrated hollow window frame (4), and the bidirectional cross-flow fan (5) is used to complete the airflow direction control process; S3. Connect the integrated hollow window frame (4) to the air inlet and outlet of the bidirectional cross-flow fan (5) so that the hollow part inside the integrated hollow window frame (4) is connected to the air inlet and outlet of the bidirectional cross-flow fan (5); by changing the power and airflow direction of the bidirectional cross-flow fan (5), the air is transported to the indoor or outdoor through the integrated hollow window frame (4) and the air outlet (1) on it. S4. When the indoor temperature is higher than the outdoor temperature, start the bidirectional cross-flow fan (5). The indoor air is continuously discharged to the outside through the integrated hollow window frame (4) and the air outlet (1) on it under the suction of the bidirectional cross-flow fan (5). During this process, the indoor air flows on the surface of the photovoltaic power generation glass (6), absorbs heat, reduces the heat transfer from the surface of the photovoltaic power generation glass (6) to the indoor, and improves the photovoltaic power generation efficiency. S5. When the indoor temperature is lower than the outdoor temperature, start the bidirectional cross-flow fan (5). Outdoor air is continuously sent into the room through the integrated hollow window frame (4) and the air vent (1) on it under the suction of the bidirectional cross-flow fan (5). During this process, outdoor air flows on the surface of the photovoltaic power generation glass (6), bringing the heat from the surface of the photovoltaic power generation glass (6) into the room, reducing the preheating load of fresh air and improving the photovoltaic power generation efficiency.

2. The method for improving the thermoelectric performance of photovoltaic glass when used as an exterior window according to claim 1, characterized in that: The battery connection lines (3) of different photovoltaic power generation glass (6) on the integrated hollow window frame (4) are connected in parallel or in series through connectors inside the integrated hollow window frame (4).

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