An integrated functional window system based on photovoltaic driving and cold radiation

Abstract

The application discloses an integrated functional window system based on photovoltaic driving and cold radiation, which comprises a modular window frame, a photovoltaic outer window module, an inner window functional body and a ventilation and air conditioning subsystem integrated on the modular window frame; the inner window functional body comprises a water storage body and a window glass; a vertical exhaust cavity is formed between the photovoltaic outer window module and the inner window functional body; the ventilation and air conditioning subsystem comprises a return air duct and an exhaust air duct; a semiconductor refrigerator and a first fan are arranged in the return air duct; the exhaust air duct comprises a lower air inlet channel, the exhaust cavity and an upper air outlet channel which are sequentially communicated; an inlet of the lower air inlet channel is communicated with a room through a room exhaust port; an outlet of the upper air outlet channel leads to the outside and forms an outdoor air outlet port; a second fan is arranged in the upper air outlet channel; and a hot end of the semiconductor refrigerator extends into the exhaust air duct. The application can effectively solve the problems of single function of existing building windows, inability to actively supply cold and difficulty in effectively reducing summer air conditioning load.

Description

Technical Field

[0001] This application relates to the field of building energy conservation and indoor environmental control technology, and in particular to an integrated functional window system based on photovoltaic drive and cold radiation. Background Technology

[0002] Windows are one of the weakest links in the thermal performance of a building envelope. In hot regions, solar radiation heat entering the room through windows is a major cause of increased air conditioning energy consumption. Currently, mainstream window energy-saving technologies mainly include using low-emissivity coated glass, argon-filled double-glazed windows, external shading blinds, or internal heat-insulating films. These methods primarily aim to reduce heat transfer, but they cannot actively eliminate heat already entering the room or provide cooling.

[0003] Other studies have attempted to combine photovoltaic panels with windows or utilize window structures for ventilation and heat exchange. However, these solutions are functionally limited and fail to deeply integrate active cooling, passive cooling, photovoltaic power generation, and window structures, making it difficult to achieve efficient, multi-mode indoor cooling and energy self-sufficiency within limited spaces. Therefore, this invention proposes an integrated functional window system based on photovoltaic drive and cold radiation. Summary of the Invention

[0004] This application provides an integrated functional window system based on photovoltaic drive and cold radiation, which can effectively solve the problems of existing building windows having single function, being unable to actively provide cooling, and being unable to effectively reduce the air conditioning load in summer.

[0005] In view of this, this application provides an integrated functional window system based on photovoltaic drive and cold radiation, including: a modular window frame and a photovoltaic outer window module, an inner window functional body and a ventilation and air conditioning subsystem integrated on the modular window frame;

[0006] The photovoltaic window module is a transparent photovoltaic panel installed on the outside of the modular window frame, used to provide power to the electrical components of the integrated functional window system;

[0007] The inner window functional unit includes a water storage body disposed in the lower region of the modular window frame and a window glass disposed above the water storage body;

[0008] A vertical ventilation cavity is formed between the photovoltaic outer window module and the inner window functional unit;

[0009] The ventilation and air conditioning subsystem includes spatially isolated return air ducts and exhaust air ducts;

[0010] The return air duct is located on the upper indoor side of the modular window frame, and its inlet and outlet are connected to the indoor environment to form an air circulation loop.

[0011] A semiconductor cooler and a first fan are sequentially arranged in the return air duct along the airflow direction.

[0012] The cold end of the semiconductor cooler is located inside the return air duct;

[0013] The exhaust duct includes a lower air inlet channel, the exhaust cavity, and an upper air outlet channel connected in sequence.

[0014] The inlet of the lower air intake channel is connected to the interior through an indoor exhaust vent located on the lower interior side of the modular window frame;

[0015] The outlet of the upper air outlet duct leads to the outside and forms an outdoor air outlet;

[0016] The lower part of the exhaust chamber is connected to the lower air inlet channel, and the upper part is connected to the upper air outlet channel;

[0017] A second fan for exhaust ventilation is installed in the upper air outlet duct.

[0018] The hot end of the semiconductor cooler extends into the exhaust duct.

[0019] Optionally, the inner window function further includes a cooling device for cooling the water in the water storage body;

[0020] The hot end of the cooling device extends into the exhaust duct.

[0021] Optionally, it may also include: a power management and storage unit;

[0022] The power management and storage unit includes a photovoltaic controller and a battery;

[0023] The transparent photovoltaic panel, the battery, the semiconductor cooler, the first fan, the second fan, and the cooling device are all electrically connected to the photovoltaic controller.

[0024] Optionally, the cooling device is a semiconductor refrigeration chip assembly.

[0025] Optionally, it also includes: a spray cooling unit;

[0026] The spray cooling unit includes a water pump installed in the water storage body, a water supply pipeline connected to the water pump, and a spray nozzle for spraying onto the outer surface of the window glass.

[0027] The nozzle is located at the top of the modular window frame and within the exhaust cavity;

[0028] The water supply pipeline is connected to the nozzle;

[0029] The top of the water storage body is provided with a return water inlet for recycling the spray water.

[0030] Optionally, the number of nozzles is multiple;

[0031] Multiple nozzles are evenly arranged along the width of the window glass to form a water film on the outer surface of the window glass.

[0032] Optionally, a filter screen is provided at the return water inlet.

[0033] Optionally, the inner surface of the window glass is provided with a cold radiation plate.

[0034] Optionally, the water storage body is a viewing fish tank;

[0035] The viewing fish tank is made of a light-transmitting material, and a transparent radiation-enhancing film is provided on the side of the viewing fish tank facing the indoors.

[0036] Optionally, the inner wall of the return air duct is lined with heat-insulating and sound-absorbing material;

[0037] The first fan has a static pressure box installed at its outlet.

[0038] As can be seen from the above technical solutions, the embodiments of this application have the following advantages: This integrated functional window system based on photovoltaic drive and cold radiation creatively integrates transparent photovoltaic power generation, active semiconductor refrigeration air conditioning, and passive cooling structure that utilizes water storage for potential radiative cooling through a modular window frame, and pioneers a dual-duct thermal management architecture with physical space isolation; this design not only enables the window to have the cooling capacity to actively eliminate indoor heat, but also efficiently and directionally exhausts the waste heat generated by the semiconductor refrigeration unit to the outside through independent exhaust ducts, thereby solving the three major problems of multi-functional integration, active cooling, and waste heat discharge within the extremely limited window space, realizing a fundamental transformation from a single energy-saving component to a composite building envelope with functions of power generation, cooling, and intelligent thermal management. Attached Figure Description

[0039] Figure 1 This is a cross-sectional structural diagram of the integrated functional window system based on photovoltaic drive and cold radiation in use, as described in the embodiments of this application.

[0040] Figure 2 for Figure 1 Cross-sectional view along the AA direction.

[0041] The attached figures are labeled as follows:

[0042] 1-Modular window frame, 2-Opening window, 3-Transparent photovoltaic panel, 4-Water storage body, 5-Window glass, 6-Cooling radiant panel, 7-Cooling device, 8-Exhaust chamber, 9-Lower air inlet channel, 10-Upper air outlet channel, 11-Water pump, 12-Water supply pipeline, 13-Sprayer head, 14-Filter screen, 15-First fan, 16-Second fan, 17-Indoor exhaust vent, 18-Outdoor air outlet, 19-Return air vent, 20-Air supply vent, 21-Battery, 22-Semiconductor cooler. Detailed Implementation

[0043] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0044] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0045] Unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0046] This application provides an embodiment of an integrated functional window system based on photovoltaic driving and cold radiation. Please refer to [link / reference] for details. Figure 1 and Figure 2 .

[0047] The integrated functional window system based on photovoltaic drive and cold radiation in this embodiment includes: a modular window frame 1 and a photovoltaic outer window module, an inner window functional body, and a ventilation and air conditioning subsystem integrated on the modular window frame 1; the photovoltaic outer window module is a transparent photovoltaic panel 3 installed on the outside of the modular window frame 1, used to provide power to the electrical components of the integrated functional window system; the inner window functional body includes a water storage body 4 located in the lower region of the modular window frame 1 and a window glass 5 located above the water storage body 4; a vertical exhaust cavity 8 is formed between the photovoltaic outer window module and the inner window functional body; the ventilation and air conditioning subsystem includes a return air duct and an exhaust air duct that are spatially isolated from each other; the return air duct is located on the upper indoor side of the modular window frame 1, and its inlet and outlet are both connected to the indoor air. The environment is connected to form an air circulation loop; a semiconductor cooler 22 and a first fan 15 are arranged sequentially along the airflow direction in the return air duct, and the cold end of the semiconductor cooler 22 is located in the return air duct; the exhaust air duct includes a lower air inlet duct 9, an exhaust chamber 8 and an upper air outlet duct 10 connected in sequence; the inlet of the lower air inlet duct 9 is connected to the interior through an indoor exhaust vent 17 opened on the lower interior side of the modular window frame 1; the outlet of the upper air outlet duct 10 leads to the outside and forms an outdoor air outlet 18; the lower part of the exhaust chamber 8 is connected to the lower air inlet duct 9, and the upper part is connected to the upper air outlet duct 10; a second fan 16 for exhaust is arranged in the upper air outlet duct 10; the hot end of the semiconductor cooler 22 extends into the exhaust air duct.

[0048] It should be noted that this integrated functional window system based on photovoltaic drive and cold radiation creatively integrates transparent photovoltaic power generation, active semiconductor cooling, and a passive cooling structure that utilizes a water storage body 4 for potential radiative cooling, through a modular window frame 1. It also pioneers a dual-duct thermal management architecture with physical spatial isolation. This design not only enables the window to actively eliminate indoor heat, but also efficiently and directionally exhausts the waste heat generated by the semiconductor cooler 22 to the outside through independent exhaust ducts. Thus, within the extremely limited window space, it simultaneously solves the three major problems of multi-functional integration, active cooling, and waste heat discharge, realizing a fundamental transformation from a single energy-saving component to a composite building envelope with functions of power generation, cooling, and intelligent thermal management.

[0049] The above is Embodiment 1 of an integrated functional window system based on photovoltaic driving and cold radiation provided in this application. The following is Embodiment 2 of an integrated functional window system based on photovoltaic driving and cold radiation provided in this application. Please refer to the following for details. Figure 1 and Figure 2 .

[0050] The integrated functional window system based on photovoltaic drive and cold radiation in this embodiment includes: a modular window frame 1 and a photovoltaic outer window module, an inner window functional body, and a ventilation and air conditioning subsystem integrated on the modular window frame 1; the photovoltaic outer window module is a transparent photovoltaic panel 3 installed on the outermost side of the modular window frame 1, used to convert solar energy into electrical energy to provide power for all DC electrical appliances in the system; the inner window functional body includes a water storage body 4 set in the lower area of ​​the modular window frame 1 and a window glass 5 set above the water storage body 4; a vertical exhaust cavity 8 is formed between the photovoltaic outer window module and the inner window functional body; the ventilation and air conditioning subsystem includes a return air duct and an exhaust air duct that are spatially isolated from each other to achieve physical separation of cooling and heat dissipation.

[0051] In this embodiment, the transparent photovoltaic panel 3 uses a cadmium telluride (CdTe) thin-film photovoltaic module with a light transmittance of ≥70% and a thickness of approximately 5mm, achieving a power generation efficiency of ≥18%. The panel size matches the modular window frame 1. During installation, it is bolted to the outer profile of the modular window frame 1 using aluminum alloy pressure strips, with a 2mm thick EVA buffer pad placed between the aluminum alloy pressure strips and the transparent photovoltaic panel 3. The inner window functional unit constitutes the main visual and functional interface facing the interior, primarily consisting of the lower water storage body 4 and the upper window glass 5. There is a 150mm thick space between the transparent photovoltaic panel 3 and the window glass 5, while the outer surface of the window glass 5 (i.e., the side of the exhaust cavity 8) remains smooth (Ra≤0.8μm), facilitating airflow and water film spreading.

[0052] The return air duct is located on the upper indoor side of the modular window frame 1. Its inlet (i.e., return air vent 19) and outlet (i.e., supply air vent 20) are both connected to the indoor environment to form an air circulation loop. A semiconductor cooler 22 and a first fan 15 are sequentially arranged within the return air duct along the airflow direction. The cold end of the semiconductor cooler 22 is located within the return air duct and is used to cool the flowing air. The exhaust duct includes a lower air inlet channel 9, an exhaust chamber 8, and an upper air outlet channel 10 connected sequentially. The lower air inlet channel 9... The air vent 17, located at the lower interior side of the modular window frame 1, connects to the interior; the outlet of the upper air outlet duct 10 leads to the outside and forms an outdoor air outlet 18; the lower part of the exhaust chamber 8 connects to the lower air inlet duct 9, and the upper part connects to the upper air outlet duct 10; a second fan 16 for exhaust is installed in the upper air outlet duct 10; the hot end of the semiconductor cooler 22 extends into the upper air outlet duct 10 of the exhaust duct, and the waste heat generated during its operation is directly released into the airflow of the duct.

[0053] In this embodiment, the return air duct is formed by bending 1.2mm thick galvanized steel sheet (cross-sectional dimensions approximately 300mm × 200mm), creating a closed circulation channel connected to the interior at both ends. The return air inlet 19 is located at the inner top of the modular window frame 1, and the supply air inlet 20 is located on the upper interior side of the modular window frame 1. Both the return air inlet 19 and the supply air inlet 20 are 300mm × 200mm in size. The return air inlet 19 has a dustproof screen inside, and the supply air inlet 20 has adjustable-angle guide vanes. The first fan 15 is a DC24V cross-flow fan (power 25W, air volume 200m³ / h) used to drive the airflow. The lower air inlet duct 9 is located below the water storage body 4, with its inlet being the indoor exhaust vent 17 (window width × 50mm, with a protective screen), connected to the interior. The upper air outlet duct 10 is located at the top of the modular window frame 1, with its outlet being the outdoor air outlet vent 18 (window width × 50mm), connected to the outside. The second fan 16 uses a DC24V cross-flow fan (power 30W, air volume 150m³ / h) to enhance exhaust ventilation.

[0054] The inner window function also includes a cooling device 7 for cooling the water in the water storage body 4; the hot end of the cooling device 7 extends into the exhaust duct, and the waste heat generated during its operation is directly released into the airflow of the duct.

[0055] It also includes a power management and storage unit, which comprises a photovoltaic controller and a battery 21; the transparent photovoltaic panel 3, the battery 21, the semiconductor cooler 22, the first fan 15, the second fan 16, and the cooling device 7 are all electrically connected to the photovoltaic controller. The photovoltaic controller and the battery 21 are integrated into the modular window frame 1.

[0056] In this embodiment, the photovoltaic controller is model MPPT24V / 30A; both the photovoltaic controller and the battery 21 are installed in the electrical control area on the upper part of the modular window frame 1. The output end of the transparent photovoltaic panel 3 is connected to the photovoltaic controller via a waterproof cable. The photovoltaic controller manages the power distribution and establishes a DC24V circuit connection with the battery 21, the semiconductor cooler 22, the first fan 15, the second fan 16, the water pump 11, and the cooling device 7.

[0057] The cooling device 7 is a semiconductor cooling chip assembly, which is located on one side of the water storage body 4. The cold end of the semiconductor cooling chip assembly can be connected to the outer wall of the water storage body 4 through a cold guide plate, or it can be extended into the water storage body 4 through the cold guide plate to contact the water in the water storage body 4.

[0058] In this embodiment, the cooling device 7 uses four TEC1-12706 type semiconductor cooling chips connected in series. Its cold end is bonded to a 300mm×200mm×2mm stainless steel cooling plate via high thermal conductivity silicone (thermal conductivity ≥3.0W / (m·K)), which is immersed in water to directly cool the water. Its hot end extends into the lower air inlet channel 9 via three φ12mm copper heat pipes, and is equipped with 300mm×150mm×50mm aluminum heat dissipation fins at the ends to increase the heat dissipation area. The joint between the cooling device 7 and the water storage body 4 is sealed with IP65-rated waterproof sealant.

[0059] It also includes a spray cooling unit, which comprises a water pump 11 installed in the water storage body 4, a water supply pipe 12 connected to the water pump 11, and a nozzle 13 for spraying water onto the outer surface of the window glass 5. The nozzle 13 is installed at the top of the modular window frame 1 and located in the exhaust chamber 8. The water supply pipe 12 is connected to the nozzle 13. A return water inlet for recycling the sprayed water is correspondingly opened at the top of the water storage body 4. Specifically, the photovoltaic controller is electrically connected to the water pump 11.

[0060] In this embodiment, the water pump 11 is a DC24V submersible pump (30W power), fixed on a stainless steel base at the bottom of the water storage body 4. The water supply pipe 12 is made of food-grade PVC hose, laid along the inside of the modular window frame 1, and wrapped with 10mm thick closed-cell insulation cotton throughout to prevent condensation. A horizontal main pipe is formed at the top inside the modular window frame 1, with branch interfaces reserved on the horizontal main pipe for connecting the nozzle 13.

[0061] Multiple nozzles 13 are evenly arranged along the width of the window glass 5 to form a water film on the outer surface of the window glass 5. Specifically, the nozzles 13 are 120° fan-shaped high-pressure atomizing nozzles (spray particle size 50-100μm). Multiple nozzles 13 are evenly arranged laterally along the top of the modular window frame 1 (spaced 200mm apart). The nozzle openings of the nozzles 13 are located inside the exhaust chamber 8 and face the outer surface of the window glass 5, forming a uniform water film on the outer surface of the window glass 5. A filter screen 14 is installed at the return water inlet. During use, the water sprayed from the nozzles 13 flows down the outer surface of the window glass 5 and returns through the return water inlet at the top of the water storage body 4. The filter screen 14 at the return water inlet filters and purifies the water, achieving water recycling. Specifically, the filter screen 14 is a 100-mesh stainless steel filter.

[0062] In this embodiment, the window glass 5 is a composite insulated glass (Low-E glass can be used to further enhance thermal insulation performance). Its lower edge is sealed to the top of the water storage body 4 with structural adhesive, so that the water storage body 4 and the inner surface of the window glass 5 form a continuous low-temperature interface, which together constitute a cold radiation surface facing the room. Preferably, a cold radiation plate 6 is provided on the inner surface of the window glass 5.

[0063] Water storage body 4 is a viewing fish tank. The viewing fish tank is made of light-transmitting material, and a transparent radiation-enhancing film is provided on the side of the viewing fish tank facing the room.

[0064] In this embodiment, the viewing aquarium is made of 12mm thick tempered glass with a volume of approximately 200L. Its interior-facing sidewall is laminated with a 0.15mm thick transparent radiation-enhancing film, which has an emissivity ≥0.9, forming a highly efficient cold radiation surface. The bottom of the viewing aquarium is equipped with a 5mm thick rubber anti-slip and shock-absorbing pad, and an internal stainless steel cross-shaped reinforcement bracket. A pre-drilled groove for installing a removable PP filter layer (filter screen 14) is provided at the top. During installation, the viewing aquarium is bolted to the lower horizontal profile of the modular window frame 1 using four stainless steel corner brackets (80mm×80mm×5mm). A 3mm rubber pad provides cushioning between the corner brackets and the viewing aquarium. A 30mm thick polyurethane insulation cotton (thermal conductivity ≤0.03 W / (m·K)) is filled between the outer side of the viewing aquarium and the modular window frame 1.

[0065] The inner wall of the return air duct is lined with heat-insulating and sound-absorbing material, which effectively reduces noise and prevents cold loss; specifically, the heat-insulating and sound-absorbing material can be 5mm thick heat-insulating and sound-absorbing cotton; the air outlet of the first fan 15 is equipped with a static pressure box of about 100mm in length to ensure uniform air supply.

[0066] Specifically, the modular window frame 1 has an opening window 2 on at least one side. In this embodiment, the modular window frame 1 uses 6063-T5 high-strength aluminum alloy profiles, which are connected by corner brackets to form a rectangular frame. The profile cross-section is optimized, and the interior is provided with slots, screw holes, and pipeline channels for installing functional components. The modular window frame 1 has 80mm wide mounting flanges around its perimeter, and M8 expansion bolt mounting holes are pre-drilled on the flanges at 300mm intervals. During installation, the modular window frame 1 is fastened to the concrete frame or joists of the building window opening using expansion bolts. The gap between the modular window frame 1 and the wall is filled with polyurethane foam (thickness ≥ 20mm), weather-resistant silicone sealant is applied to the outside, and aluminum alloy decorative panels are used to cover the inside, ensuring that the airtightness level of the system is not lower than level 6 as specified in GB / T 7106-2019.

[0067] In practice, the transparent photovoltaic panel 3 generates electricity to power the system. The first fan 15 starts, drawing in hot indoor air from the return air vent 19. After being cooled by the cold end of the semiconductor cooler 22, the air is returned to the room through the supply air vent 20, achieving rapid convection cooling. The cooling device 7 continues to operate, cooling the water in the aquarium and dissipating heat into the room through cold radiation. The water pump 11 starts, spraying cold water onto the outer surface of the window glass 5 to form an evaporative water film, reducing the temperature of the window glass 5 and the heat gained from solar radiation at the source. The second fan 16 starts, drawing indoor air from the indoor exhaust vent 17 into the exhaust duct. During its flow, the air absorbs waste heat released by the hot end of the semiconductor cooler 22 and the cooling device 7, becoming hot air before being forcefully exhausted outdoors through the outdoor exhaust vent 18. This dual-duct design ensures that 100% of the waste heat is directionally exhausted, without affecting the indoor cooling effect.

[0068] Understandably, during summer nights or transitional seasons, the active air conditioning can be turned off, and only the cooling unit 7 can be operated for radiant cooling, with natural or forced ventilation using the exhaust duct.

[0069] Experimental testing showed that the integrated functional window system in this embodiment, operating under simulated hot summer conditions, effectively reduced indoor air temperature by 5-8°C using a DC air conditioner (return air duct). The cold radiant surface of the aquarium significantly reduced the average indoor radiant temperature, improving comfort. Spray evaporation reduced the outer surface temperature of the window glass by more than 10°C. Photovoltaic power generation met the majority of the system's energy needs, achieving near 100% energy self-sufficiency. The dual-duct design significantly improved cooling efficiency (COP) compared to traditional hybrid duct designs, resulting in substantial energy savings.

[0070] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. An integrated functional window system based on photovoltaic drive and cold radiation, characterized in that, include: Modular window frame and photovoltaic exterior window module, interior window functional unit and ventilation and air conditioning subsystem integrated on the modular window frame; The photovoltaic window module is a transparent photovoltaic panel installed on the outside of the modular window frame, used to provide power to the electrical components of the integrated functional window system; The inner window functional unit includes a water storage body disposed in the lower region of the modular window frame and a window glass disposed above the water storage body; A vertical ventilation cavity is formed between the photovoltaic outer window module and the inner window functional unit; The ventilation and air conditioning subsystem includes spatially isolated return air ducts and exhaust air ducts; The return air duct is located on the upper indoor side of the modular window frame, and its inlet and outlet are connected to the indoor environment to form an air circulation loop. A semiconductor cooler and a first fan are sequentially arranged in the return air duct along the airflow direction. The cold end of the semiconductor cooler is located inside the return air duct; The exhaust duct includes a lower air inlet channel, the exhaust cavity, and an upper air outlet channel connected in sequence. The inlet of the lower air intake channel is connected to the interior through an indoor exhaust vent located on the lower interior side of the modular window frame; The outlet of the upper air outlet duct leads to the outside and forms an outdoor air outlet; The lower part of the exhaust chamber is connected to the lower air inlet channel, and the upper part is connected to the upper air outlet channel; A second fan for exhaust ventilation is installed in the upper air outlet duct. The hot end of the semiconductor cooler extends into the exhaust duct.

2. The integrated functional window system based on photovoltaic drive and cold radiation according to claim 1, characterized in that, The inner window function also includes a cooling device for cooling the water in the water storage body; The hot end of the cooling device extends into the exhaust duct.

3. The integrated functional window system based on photovoltaic drive and cold radiation according to claim 1, characterized in that, Also includes: Power management and storage unit; The power management and storage unit includes a photovoltaic controller and a battery; The transparent photovoltaic panel, the battery, the semiconductor cooler, the first fan, the second fan, and the cooling device are all electrically connected to the photovoltaic controller.

4. The integrated functional window system based on photovoltaic drive and cold radiation according to claim 1, characterized in that, The cooling device is a semiconductor refrigeration chip assembly.

5. The integrated functional window system based on photovoltaic drive and cold radiation according to claim 1, characterized in that, Also includes: Spray cooling unit; The spray cooling unit includes a water pump installed in the water storage body, a water supply pipeline connected to the water pump, and a spray nozzle for spraying onto the outer surface of the window glass. The nozzle is located at the top of the modular window frame and within the exhaust cavity; The water supply pipeline is connected to the nozzle; The top of the water storage body is provided with a return water inlet for recycling the spray water.

6. The integrated functional window system based on photovoltaic drive and cold radiation according to claim 1, characterized in that, The number of nozzles is multiple; Multiple nozzles are evenly arranged along the width of the window glass to form a water film on the outer surface of the window glass.

7. The integrated functional window system based on photovoltaic drive and cold radiation according to claim 1, characterized in that, A filter screen is installed at the return water inlet.

8. The integrated functional window system based on photovoltaic drive and cold radiation according to claim 1, characterized in that, The inner surface of the window glass is provided with a cold radiation plate.

9. The integrated functional window system based on photovoltaic drive and cold radiation according to claim 1, characterized in that, The water storage body is a viewing fish tank; The viewing fish tank is made of a light-transmitting material, and a transparent radiation-enhancing film is provided on the side of the viewing fish tank facing the indoors.

10. The integrated functional window system based on photovoltaic drive and cold radiation according to claim 1, characterized in that, The inner wall of the return air duct is lined with heat-insulating and sound-absorbing material; The first fan has a static pressure box installed at its outlet.

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