Temperature-controlled vacuum photovoltaic window

Abstract

The application relates to the technical field of photovoltaic windows, and discloses a temperature-controllable vacuum photovoltaic window, which comprises three layers of glass, a vacuum cavity, an air flow cavity, a semiconductor cold and hot chip group, a heat dissipation / cold channel, a heat dissipation / cold channel ventilator, a microcontroller, a storage battery, a light sensor and a temperature sensor. The heat dissipation / cold channel is composed of a semiconductor cold and hot chip group outer end, a heat dissipation / cold channel ventilator, a heat dissipation / cold channel cavity, a heat dissipation / cold channel air inlet and a heat dissipation / cold channel air outlet. An inner air flow cavity, a semiconductor cold and hot chip group inner end, an inner cavity circulating air flow fan and a PVC transparent baffle together form an inner circulation channel. The vacuum cavity and the semiconductor refrigeration / heating system effectively isolate the indoor and outdoor temperatures, reduce the heat conduction of the glass window, improve the heat insulation performance of the window, and make the temperature inside the window be uniformly adjusted through the inner cavity circulating air flow fan and the inner circulation ventilation system.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of photovoltaic windows, and particularly relates to a temperature-controllable vacuum photovoltaic window. BACKGROUND

[0002] With the increasing demand for energy and environmental problems, it is increasingly important to develop green energy technology in the field of building. As the interface between the indoor and outdoor environments of a building, building windows provide lighting and ventilation, but also cause a large amount of heat loss, especially in cold and hot seasons, the windows become the key part of heat loss. Therefore, it is of great significance to invent a kind of high-efficiency energy-saving glass window that can effectively utilize solar energy and has heat preservation and insulation.

[0003] A vacuum glass window can effectively reduce heat conduction and convection by forming a vacuum layer between two layers of glass, thereby improving the heat insulation performance of the window. However, in summer, a large amount of external heat radiation can still pass through the glass into the room, increasing the air conditioning load. In contrast, a photovoltaic energy-saving window can effectively utilize solar radiation heat and reduce the radiation light flux entering the room, but when the indoor and outdoor temperature difference is large, the heat flow directly passes through the glass window, increasing the air conditioning load. Combining the technical advantages of both, a vacuum photovoltaic window can not only improve the heat insulation performance, but also has the function of photovoltaic power generation. However, the working temperature of photovoltaic glass is relatively high, and if not effectively controlled, it will block the heat flow into the room in summer and also block the heat flow into the room in winter, which is not conducive to reducing the heating load. Therefore, it is a current research hotspot and difficulty to invent a kind of vacuum photovoltaic window that can actively control the glass temperature according to the changes in indoor and outdoor cold and heat demand, and realize efficient utilization of heat energy in all seasons.

[0004] Through patent retrieval, it is found that the Chinese invention patent (authorized announcement number CN 204663350U): a solar energy saving window. The invention relates to a solar energy saving window, which comprises a window frame, a hollow double-layer glass, a semiconductor refrigeration system and a solar photovoltaic cell panel. The window frame is composed of a left side column, a right side column, a bottom frame and a top frame. The left side column and the right side column are four-sealed aluminum alloy boxes, and the aluminum alloy boxes are filled with medium water for cold storage. The semiconductor refrigeration system comprises a radiator and a semiconductor chip sandwiched between the surface of the aluminum alloy box and the radiator. The aluminum alloy box and the radiator are connected by screw clamping. The space between the aluminum alloy box and the radiator except the semiconductor chip and the outside of the aluminum alloy box are pasted with thermal insulation materials. The hollow double-layer glass is installed in the window frame, and the solar photovoltaic cell panel is installed on the top frame. The invention uses the solar photovoltaic cell panel to generate electricity while shading, reduces the direct entry of solar radiation into the room, and uses solar power to drive the semiconductor chip to actively refrigerate, which can effectively reduce the energy consumption of the window. However, although the power generation of the photovoltaic window can reduce some indoor energy consumption through the semiconductor refrigeration sheet, it does not effectively block the influence of the outdoor environment on the indoor environment. The photovoltaic power generation will make the glass heat up, so there is still a lot of heat transmitted into the room through the glass.

[0005] In addition, through patent retrieval, it is found that the Chinese invention patent (authorized announcement number CN 201908398 U): solar photovoltaic vacuum curtain wall glass and a solar photovoltaic vacuum glass curtain wall. The invention discloses a solar photovoltaic vacuum glass curtain wall, which belongs to the technical field of building photovoltaic curtain wall. It comprises a solar cell assembly and a vacuum cavity. Then, a spacing strip is fixedly installed between the solar cell assembly and the vacuum cavity to form a closed cavity to form a hollow layer. Further, a PVB film is bonded to an inner layer glass on one side of the vacuum glass to form a laminated glass. The solar photovoltaic vacuum glass curtain wall improves the heat preservation performance and sound insulation performance of the product through the hollow layer between the double-glass solar cell assembly and the vacuum glass, and forms a hollow-vacuum, hollow-vacuum-laminated composite structure to further reduce the energy consumption of the building. It can be used as a building material type photovoltaic assembly in building curtain walls, photovoltaic roofs, photovoltaic windows, etc., which can effectively reduce the building energy consumption and improve the energy saving effect and living comfort of the building. However, the use of the power generated by the photovoltaic cell is not clear. If the direct current generated by the photovoltaic cell is used for air conditioning equipment, it must be converted to 220V alternating current through voltage D / A conversion and voltage transformation. This process will inevitably face the problem of power loss, so that the amount of electricity that can be used is very small. SUMMARY

[0006] In order to make up for the deficiencies of the prior art, the existing photovoltaic semiconductor window cannot realize the control of the window glass temperature, cannot effectively reduce the influence of the outdoor environment on the indoor environment, the photovoltaic power generation can cause the glass to produce heat and rise in temperature, and the heat transmitted into the room through the glass is still a lot, and the indoor energy consumption is also a lot. In addition, the existing photovoltaic vacuum window can rely on increasing the coverage of photovoltaic cells to improve the power generation of photovoltaic cells, but does not consider the more effective use of the electricity generated by the photovoltaic cells. At present, the use of electricity generated by photovoltaic cells is mostly supplied to indoor equipment consumption, but the photovoltaic power generation is not much, and it is necessary to convert it into household voltage 220V. This process will inevitably have a lot of loss, so that the effective power consumption is very small. The present application provides a kind of temperature control vacuum photovoltaic window.

[0007] In order to achieve the above purpose, the present application provides the following technical scheme:

[0008] A kind of temperature control vacuum photovoltaic window, including three layers of glass, outer vacuum cavity, inner air flow cavity, semiconductor cold and hot chip group, heat dissipation / cold channel, heat dissipation / cold channel fan, microcontroller, battery, sensing module, the sensing module includes light sensor and temperature sensor;The inner and outer sides of the semiconductor cold and hot chip group are respectively provided with semiconductor cold and hot chip group inner end and semiconductor cold and hot chip group outer end.

[0009] The top of the inner air flow cavity is provided with two inner cavity circulating air flow fans on both sides, and the bottom of the inner air flow cavity is provided with two PVC transparent baffles on both sides, the inner air flow cavity, semiconductor cold and hot chip group inner end, inner cavity circulating air flow fan, PVC transparent baffle and window frame together form an inner circulation channel, and the inner circulation channel, microcontroller, battery, light sensor and temperature sensor form an inner circulation ventilation system;

[0010] The heat dissipation / cold channel is placed on the top of the window and is composed of semiconductor cold and hot chip group outer end, heat dissipation / cold channel fan, heat dissipation / cold channel cavity, heat dissipation / cold channel air inlet and heat dissipation / cold channel air outlet.

[0011] As a preferred, the photovoltaic cell unit is connected with the battery, microcontroller, semiconductor cold and hot chip group, heat dissipation / cold channel fan, inner cavity circulating air flow fan, heat dissipation / cold channel air inlet and heat dissipation / cold channel air outlet through connecting wires.

[0012] As a preferred, the three layers of glass include two photovoltaic cell inner and outer side tempered glass, middle layer tempered glass and window inner side float glass arranged from outside to inside, the outer vacuum cavity is located between the photovoltaic cell inner and outer side tempered glass and the middle layer tempered glass, and the inner air flow cavity is located between the middle layer tempered glass and the window inner side float glass.

[0013] As a preferred, the heat dissipation / cold channel air inlet and the heat dissipation / cold channel air outlet are respectively located at the left and right positions of the heat dissipation / cold channel cavity, the left side is the heat dissipation / cold channel air inlet, and the right side is the heat dissipation / cold channel air outlet, and the heat dissipation / cold channel fan is located in the heat dissipation / cold channel cavity.

[0014] The heat of the semiconductor cold and hot chip set outer end fin enters the heat dissipation / cold channel cavity from the heat dissipation / cold channel air inlet, and is quickly discharged to the outdoor by the heat dissipation / cold channel fan and the heat dissipation / cold channel air outlet.

[0015] As a preferred, photovoltaic cell units are arranged between the two pieces of inner and outer side tempered glass of the photovoltaic cell, and the inner and outer side tempered glass of the photovoltaic cell and the photovoltaic cell units are bonded by EVA adhesive.

[0016] As a preferred, the PVC transparent baffle is fixed on both sides of the inner side air flow cavity by an adhesive.

[0017] As a preferred, a vacuum support column connecting the intermediate layer tempered glass and the inner and outer side tempered glass of the photovoltaic cell is arranged in the outer side vacuum cavity.

[0018] The vacuum support column can enhance the structural stability of the window, maintain the shape and stability of the outer side vacuum cavity. When the window is subjected to external pressure or other extrusion force, the vacuum support column can uniformly distribute and bear the force, reduce the risk of deformation and breakage of the window caused by external force, and the vacuum support column can support and fix the intermediate layer tempered glass and the inner and outer side tempered glass of the photovoltaic cell, prevent the relative movement and deformation between the glasses. This helps to maintain the integrity and performance stability of the glass, and ensures the heat and sound insulation function of the window. The vacuum support column can help prevent air leakage of the outer side vacuum cavity. By properly arranging and fixing the vacuum support column, the possibility of gas and moisture entering the vacuum cavity can be reduced, and the vacuum state of the window can be maintained. This helps to improve the heat insulation performance of the window and maintain the effectiveness of the vacuum cavity. As a part of the structure, the vacuum support column can enhance the overall durability of the window. By supporting and fixing the glass, the risk of deformation and breakage is reduced, and the window can maintain its performance and appearance for a longer period of time.

[0019] The technical effects and advantages of the present application are as follows:

[0020] 1. The photovoltaic cell assembly converts solar radiation energy into direct current, which is used for the operation of the window system, and the remaining electric energy can be stored in the storage battery, realizing efficient utilization of solar energy. The window system intelligently adjusts the working mode according to the external temperature and light conditions, cools in cold load condition, heats in hot load condition, and does not need additional cooling or heating in transition condition, thereby realizing efficient utilization and energy saving of energy.

[0021] 2. The vacuum cavity and semiconductor refrigeration / heat system effectively isolates the indoor and outdoor temperatures, reduces the heat conduction of the glass window, and improves the heat insulation performance of the window. The internal cavity circulation air flow fan and the internal circulation ventilation system uniformly regulate the temperature inside the window, further improving the heat insulation performance of the window.

[0022] 3. The microcontroller automatically adjusts the operating state of the window system according to the data of the light and temperature sensors, ensures that the indoor temperature and light are within the appropriate range, and the electricity generated by the photovoltaic cell is directly used for the semiconductor refrigeration / heat system, reducing energy conversion loss and improving effective electricity consumption. The present application solves the problems of low photovoltaic cell power utilization and large window heat transfer coefficient, and improves the performance and efficiency of the window. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a side view of a photovoltaic driven semiconductor vacuum energy-saving window of the present application;

[0024] Figure 2 is Figure 1 a cross-sectional view at A-A in FIG. 1;

[0025] Figure 3 is Figure 2 a cross-sectional view at B-B in FIG. 1.

[0026] In the figure: 1-1, photovoltaic cell unit; 1-2, photovoltaic cell inner and outer tempered glass; 1-3, EVA adhesive; 2-1, vacuum cavity; 2-2, air flow cavity; 2-3, vacuum support column; 2-4, PVC transparent baffle; 3-1, heat dissipation / cold channel air outlet; 3-2, heat dissipation / cold channel fan; 3-3, heat dissipation / cold channel air inlet; 4-1, semiconductor cooling / heating chip group outer side; 4-2, semiconductor cooling / heating chip group inner side; 4-3, internal cavity circulation air flow fan; 5-1, window inner side float glass; 5-2, intermediate layer tempered glass; 6-1, battery; 6-2, microcontroller; 7, light sensor; 8, temperature sensor; 9, connecting wire. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0028] In view of the problems that the current semiconductor photovoltaic window cannot weaken the influence of outdoor temperature on indoor environment and too much energy is introduced into the indoor environment through the window, the design adds a vacuum cavity and adjusts the semiconductor cooling / heating system to effectively control the temperature of the indoor glass and greatly weaken the heat conduction and heat transfer of the glass window.In view of the problem that the effective utilization rate of photovoltaic power generation of the current photovoltaic vacuum glass is low, the application uses the electric energy generated by the photovoltaic power generation on the semiconductor cooling sheet without D / A conversion.The electric energy is directly used to act on the inner glass to increase the effective electric energy and the heat insulation performance of the window.

[0029] The application is further described below in combination with the drawings Figures 1-3 The application is further described below in combination with the drawings

[0030] The application discloses a temperature-controllable vacuum photovoltaic window. Figures 1-3 The temperature-controllable vacuum photovoltaic window comprises three layers of glass, an outer vacuum cavity 2-1, an inner air flow cavity 2-2, a semiconductor cooling / heating chip group, a heat dissipation / cold channel, a heat dissipation / cold channel fan 3-2, a microcontroller 6-2, a storage battery 6-1 and a sensing module comprising an illumination sensor 7 and a temperature sensor 8.

[0031] The controller chip of the microcontroller 6-2 is of an stm32 type, the illumination sensor 7 is of a TSL2591 type and the temperature sensor 8 is of a DS18B20 type.

[0032] The three layers of glass comprise two layers of photovoltaic cell inner and outer tempered glass 1-2, an intermediate layer tempered glass 5-2 and a window inner side float glass 5-1 arranged from outside to inside, the outer vacuum cavity 2-1 is located between the photovoltaic cell inner and outer tempered glass 1-2 and the intermediate layer tempered glass 5-2, and the inner air flow cavity 2-2 is located between the intermediate layer tempered glass 5-2 and the window inner side float glass 5-1.

[0033] Two inner cavity circulating air flow fans 4-3 are arranged at the top of the inner air flow cavity 2-2, two PVC transparent baffles 2-4 are arranged at the bottom of the inner air flow cavity 2-2, the inner air flow cavity 2-2, the semiconductor cooling / heating chip group inner end 4-2, the inner cavity circulating air flow fan 4-3 and the PVC transparent baffle 2-4 together form an inner circulating channel with the window frame, and the inner circulating channel, the microcontroller 6-2, the storage battery 6-1, the illumination sensor 7 and the temperature sensor 8 form an inner circulating ventilation system.

[0034] As shown in the drawings Figure 3As shown, the heat dissipation / cold channel is placed on the top of the window and consists of the outer end of the semiconductor cold heat chip group 4-1, the heat dissipation / cold channel fan 3-2, the heat dissipation / cold channel cavity, the heat dissipation / cold channel air inlet 3-3, and the heat dissipation / cold channel air outlet 3-1.

[0035] As shown in Figure 2 The photovoltaic cell unit 1-1 is connected to the battery 6-1, the microcontroller 6-2, the semiconductor cold heat chip group, the heat dissipation / cold channel fan 3-2, the internal cavity circulating air fan 4-3, the heat dissipation / cold channel air inlet 3-3, and the heat dissipation / cold channel air outlet 3-1 through the connecting wire 9.

[0036] The connecting wire 9 allows the electrical energy generated by the photovoltaic cell unit 1-1 to be transmitted to other systems and devices, such as the battery 6-1, the microcontroller 6-2, the semiconductor cold heat chip group, and the ventilation system, which helps to fully utilize photovoltaic power generation and achieve efficient use of electrical energy. The connecting wire 9 allows the various components to work together to achieve intelligent control of the entire window system. The battery 6-1 can store excess electrical energy for future use, the microcontroller 6-2 can adjust the system operating state according to sensor data, and the semiconductor cold heat chip group and the ventilation system can cool or heat as needed to maintain the indoor temperature within a suitable range.

[0037] As shown in Figure 3 The heat dissipation / cold channel air inlet 3-3 and the heat dissipation / cold channel air outlet 3-1 are located on the left and right sides of the heat dissipation / cold channel cavity, respectively. The left side is the heat dissipation / cold channel air inlet 3-3, and the right side is the heat dissipation / cold channel air outlet 3-1. The heat dissipation / cold channel fan 3-2 is located inside the heat dissipation / cold channel cavity.

[0038] As shown in Figure 1 The photovoltaic cell unit 1-1 is provided between the two pieces of photovoltaic cell inner and outer tempered glass 1-2, and the two pieces of photovoltaic cell inner and outer tempered glass 1-2 and the photovoltaic cell unit 1-1 are bonded by EVA adhesive 1-3.

[0039] The EVA adhesive 1-3 can form a solid overall structure between the photovoltaic cell unit 1-1 and the two pieces of photovoltaic cell inner and outer side tempered glass 1-2 through adhesion, thereby enhancing the overall strength and stability of the window and better resisting external impact and deformation, and the EVA adhesive 1-3 can provide protection for the photovoltaic cell unit 1-1 to prevent it from being eroded and damaged by the external environment. Especially for harsh conditions in outdoor environments, such as ultraviolet light, high temperature, humidity, etc., the EVA adhesive 1-3 can effectively prolong the service life and performance stability of the photovoltaic cell unit 1-1, and the EVA adhesive 1-3 has light transmittance, which can improve the light transmittance efficiency between the photovoltaic cell and the glass surface. The adhesion of the photovoltaic cell unit 1-1 can better absorb and convert solar energy, improve the photovoltaic conversion efficiency, and thus increase the electric energy that can be generated by the window.

[0040] As shown in Figures 1-2 The PVC transparent baffle 2-4 is fixed on both sides of the inner air flow cavity 2-2 using an adhesive, and the PVC transparent baffle 2-4 can divide the inner air flow cavity 2-2 into a flow chamber that can be circulated internally, thereby improving the effect of circulating ventilation and maintaining the effectiveness and directionality of air flow.

[0041] As shown in Figure 1 The outer side vacuum cavity 2-1 is provided with a vacuum support column 2-3 connected to the intermediate layer tempered glass 5-2 and the photovoltaic cell inner and outer side tempered glass 1-2.

[0042] The microcontroller 6-2 is provided with an operation switch and a working condition control program, the temperature sensor 8 senses an outdoor temperature signal, and the light sensor 7 senses an outdoor solar radiation intensity, and the signals are transmitted to the microcontroller 6-2, which controls the semiconductor refrigeration / heating sheet group and the inner cavity circulating air fan 4-3 and the heat dissipation / cold channel ventilator 3-2, so that the semiconductor refrigeration / heating sheet group performs refrigeration / heating on one side of the glass cavity and correspondingly dissipates heat / cooling from the outer side channel, thereby controlling the operation state of the entire system.

[0043] The temperature control vacuum photovoltaic window can be divided into cold load working condition, hot load working condition and transition working condition (no load or near zero load) according to the load condition of the target room, and the selection of the three working conditions can be determined according to the real-time weather condition, and generally, when the solar radiation is strong and the climate is hot, it is the cold load working condition, when the climate is cold and the solar radiation is insufficient, it is the hot load working condition, and when the climate is moderate and the room load is small, the semiconductor cooling / heating chip group does not need to be started, and only photovoltaic power generation is needed to produce heat, so as to ensure that the room load formed by the window is close to zero.

[0044] Considering the heat conduction of the gas in the outer vacuum cavity 2-1, the filling gas should be argon, krypton, xenon and other inert gases, and appropriate relative humidity should be ensured to deal with the risk of condensation, and the pressure difference between the inside and outside of the cavity caused by the change of gas temperature.

[0045] When the cold load condition is running, the light sensor 7 and the temperature sensor 8 collect signals to the microcontroller 6, and the microcontroller 6 judges that the signal reflects the current hot weather, and runs the cold load mode. Under the direct solar radiation and the heat dissipation radiation of the sky and the ground, the photovoltaic glass cell assembly will convert part of the radiation energy into direct current to power the window system, and the remaining direct current is stored in the battery 6-1 as an emergency power supply for the system. In addition, part of the radiation transmits through the window into the room, so that the sunlight entering the room meets the indoor lighting requirements, avoiding excessive radiation energy through room air conditioning and lighting load. The remaining radiation energy is converted into heat on the photovoltaic panel surface, causing the temperature of the photovoltaic glass to rise, but most of the heat of the photovoltaic glass will be isolated by the vacuum cavity 2-1, and a small part of the energy will be transferred to the intermediate layer tempered glass 5-2 by radiation; At the same time, the direct current generated by the photovoltaic cell assembly is used to drive the semiconductor cold and hot chip set and the heat dissipation / cold channel fan 3-2 and the inner cavity circulating air fan 4-2 to run, the semiconductor cold and hot chip set inside 4-2 fin refrigeration, semiconductor cold and hot chip set outside 4-1 fin heating, the outer fin heat is in turn through the heat dissipation / cold channel fan 3-2 running quickly to the outdoor, and makes the semiconductor refrigeration efficiency increase, the semiconductor cold and hot chip set inside refrigeration capacity by the cavity gas first through the inner interlayer top, through two running inner cavity circulating air fan 4-2 and inner circulating pipeline, then quickly fill the entire inner air flow cavity 2-2, the cold gas uniformly cools the window glass surface, greatly reduces the heat conduction of the glass window, thereby forming an inner gas circulation ventilation, so that the window achieves the effect of summer heat insulation.

[0046] In the same way, when the heat load condition is running, the light sensor 7 and the temperature sensor 8 collect signals and send them to the microcontroller 6-2, and the microcontroller 6-2 judges that the current belongs to cold weather, and runs the heat load mode. Under the direct radiation of the sun and the heat radiation of the sky and the ground, the photovoltaic glass cell assembly will convert part of the radiation energy into direct current to power the window system, and the remaining direct current will be stored in the battery as an emergency power supply for the system. In addition, part of the radiation enters the room through the window, so that the sunlight entering the room meets the indoor lighting requirements. The remaining radiation energy is converted into heat on the photovoltaic panel, causing the temperature of the photovoltaic glass to rise, but most of the heat of the photovoltaic glass will be isolated by the vacuum cavity, and a small part of the energy will be transferred to the intermediate layer of tempered glass by radiation; At the same time, the direct current generated by the photovoltaic cell assembly is used to operate the semiconductor cold and hot chip set and the heat dissipation / cold channel fan 3-2 and the inner cavity circulating air fan 4-2, the semiconductor cold and hot chip set inside 4-2 heats, and the semiconductor cold and hot chip set outside 4-1 cools, the heat of the outside fin is quickly discharged to the outside through the operation of the heat dissipation / cold channel fan 3-2, and the efficiency of the semiconductor heating is increased, and the heat of the inside is quickly filled with the entire inside air flow cavity 2-2 through the inner cavity circulating air fan 4-2 and the inner circulating pipeline, and the hot gas uniformly cools the window glass surface, so that the temperature difference between the window and the indoor is reduced, and the window achieves the effect of winter heat preservation.

[0047] In the running process of the temperature control vacuum photovoltaic window of the application, the electricity generated in the transition condition can be partially used for heat preservation of the inner cavity, and the temperature difference between the inner glass and the indoor can be reduced, and the electricity can also be temporarily stored. The operation of the heat dissipation / cold channel fan 3-2 reduces the temperature difference between the cold and hot ends of the semiconductor chip, and improves the cold / heat generation efficiency. In addition, the heat of the inner cavity can be fully utilized, and the air pressure of the left and right air outlets of the heat dissipation / cold channel can be reduced, so that the operation power consumption of the heat dissipation / cold channel fan 3-2 is reduced. In summary, the temperature control vacuum photovoltaic window of the application greatly weakens the heat conduction of the glass window, meets the indoor lighting, and discharges the excess heat / cold generated by the semiconductor chip to the outside, the whole process realizes intelligentization, temperature controllability and high efficiency of electric energy utilization, effectively solves the problems of low power generation efficiency of photovoltaic cells and large window heat transfer coefficient.

[0048] According to the functional characteristics of the glass window, a temperature control vacuum photovoltaic window is proposed to realize automation and effective heat conduction blocking and to fully utilize solar energy of the glass window high-efficiency energy-saving scheme. First, the potential room load under high solar radiation is converted into electric energy through photovoltaic power generation. Meanwhile, the vacuum cavity blocks the excess solar radiation heat. Moreover, the generated electric energy is used to drive the semiconductor cooling / heating and the inner cavity circulating ventilation and the inner cavity circulating air flow fan operation, to adjust the air temperature in the interlayer, to block heat conduction heat exchange and to remove the cavity excess heat, thereby greatly reducing the indoor load.

[0049] For the problem of low photovoltaic power generation effective utilization rate of the current photovoltaic vacuum glass, the electric quantity generated by the photovoltaic is used on the semiconductor refrigerating sheet, without D / A conversion, so as to reduce the loss in the conversion process, the generated energy acts on the inner layer glass, so that the effective power consumption is increased, the window heat preservation and heat insulation performance is increased, and the indoor load is effectively reduced.

[0050] The temperature control vacuum photovoltaic window constructs a vacuum cavity 2-1 and an air flow cavity 2-2 in the three-layer double-cavity glass window, controls the air flow cavity 2-2 gas temperature by the semiconductor cooling / heating system, and removes the excess heat / cold quantity of the outer layer by the circulating ventilation system, so as to realize high-efficiency energy-saving operation of the entire glass window system.

[0051] The temperature control vacuum photovoltaic window is an organic combination of a photovoltaic glass (composed of a photovoltaic cell unit 1-1 and two photovoltaic cell inner and outer side tempered glass 1-2), an intermediate layer tempered glass 5-2, a window inner side float glass 5-1, a vacuum cavity 2-1, an air flow cavity 2-2, a semiconductor cooling / heating unit, a microcontroller 6-2 and the like structure and system, and its use relates to photovoltaic power generation and storage, heat dissipation / cold and heat flow transmission and the like energy transmission and conversion process, and the synergistic management of light-electricity-heat among them is the key to realize high-efficiency operation and energy saving.

[0052] Finally, it should be noted that: the above only describes the preferred embodiments of the present application and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A temperature-controlled vacuum photovoltaic window, characterized in that, It includes three layers of glass, an outer vacuum cavity, an inner airflow cavity, a semiconductor heating and cooling chip group, a heat dissipation / cold aisle, a heat dissipation / cold aisle ventilator, a microcontroller, a battery, and a sensing module, wherein the sensing module includes a light sensor and a temperature sensor; the semiconductor heating and cooling chip group has an inner end and an outer end on its inner and outer sides, respectively. Two internal cavity circulating airflow fans are provided on both sides of the top of the internal airflow cavity, and two PVC transparent baffles are provided on both sides of the bottom of the internal airflow cavity. The internal airflow cavity, the inner end of the semiconductor hot and cold chip group, the internal cavity circulating airflow fans, the PVC transparent baffles and the window frame together form an internal circulation channel. The internal circulation channel, together with the microcontroller, the battery, the light sensor and the temperature sensor, constitutes an internal circulation ventilation system. The heat dissipation / cold aisle is located at the top of the window and consists of the outer end of the semiconductor hot and cold chip group, the heat dissipation / cold aisle ventilator, the heat dissipation / cold aisle cavity, the heat dissipation / cold aisle air inlet, and the heat dissipation / cold aisle air outlet. The three-layer glass comprises two tempered glass layers on the outer and inner sides of the photovoltaic cells, a middle tempered glass layer, and a float glass layer on the inner side of the window, arranged from the outside to the inside. The outer vacuum cavity is located between the inner and outer tempered glass layers of the photovoltaic cells and the middle tempered glass layer, and the inner air flow cavity is located between the middle tempered glass layer and the float glass layer on the inner side of the window. A photovoltaic cell unit is provided between the inner and outer tempered glass of the two photovoltaic cells, and the inner and outer tempered glass of the two photovoltaic cells are bonded to the photovoltaic cell unit by EVA adhesive; The outer vacuum cavity is equipped with a vacuum support column that connects the intermediate tempered glass layer and the inner and outer tempered glass of the photovoltaic cell.

2. The temperature-controlled vacuum photovoltaic window according to claim 1, characterized in that: The air inlet and outlet of the heat dissipation / cold aisle are located on the left and right sides of the heat dissipation / cold aisle cavity, respectively, and the heat dissipation / cold aisle fan is located inside the heat dissipation / cold aisle cavity.

3. The temperature-controlled vacuum photovoltaic window according to claim 1, characterized in that: The PVC transparent baffle is fixed to both sides of the inner airflow cavity using adhesive.

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