Ventilation and temperature control photovoltaic energy-saving window

Abstract

The present application relates to the technical field of glass window, and specifically relates to a ventilated temperature control photovoltaic energy-saving window, which comprises a window body with a window, wherein a first glass, an electrochromic glass and a photovoltaic glass are vertically and spacedly arranged in the window from inside to outside, forming inner and outer double channels from inside to outside; a top channel extending leftward and rightward and a ventilation opening communicating with the outside are arranged on the window body at the top of the window, and a plurality of semiconductor chips are spacedly arranged on the window body below the top channel; a current direction switch, a controller and a storage battery are further arranged on the window body at one side of the window, the photovoltaic glass is electrically connected with the storage battery, and the storage battery is electrically connected with the controller, the current direction switch and each semiconductor chip in sequence. The present application utilizes solar energy to drive the internal circulation ventilation of the inner and outer double channels and the temperature control of the semiconductor chips, can greatly weaken the heat conduction and heat transfer of the glass window and enhance the heat preservation and insulation performance of the window body, and has the characteristics of compact structure and high energy saving.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of glass windows, and particularly relates to a ventilated temperature control photovoltaic energy-saving window. BACKGROUND

[0002] Traditional glass windows provide natural lighting for buildings while transmitting excess solar radiation heat into the building interior. Moreover, due to the large thermal conductivity and small heat capacity of glass windows, the air conditioning load of the building is greatly increased. Therefore, a high-efficiency energy-saving glass window capable of adjusting and utilizing excess solar radiation energy and enhancing thermal insulation is of great significance for promoting carbon reduction and achieving the dual-carbon goal in the field of building.

[0003] According to the heat flow blocking method, the existing building energy-saving glass windows can be generally divided into three categories: thermal insulation energy-saving windows, photovoltaic energy-saving windows, and intelligent color-changing glass energy-saving windows. Thermal insulation energy-saving windows can block the load transmission caused by the indoor and outdoor temperature difference, such as using a vacuum cavity to reduce the heat transfer of the window. However, in the hot summer, the strong direct solar radiation enters the room through the transparent glass, increasing the air conditioning load of the room. Photovoltaic energy-saving windows can effectively utilize solar radiation heat and reduce the radiant flux entering the room. However, when the indoor and outdoor temperature difference is large, the heat flow directly passes through the glass window, increasing the air conditioning load. Color-changing energy-saving windows can adjust the radiant flux by changing their own light transmittance, but they cannot achieve the purpose of reasonably utilizing solar energy. Similarly, when the indoor and outdoor temperature difference is large, the air conditioning load is large. In summary, single window energy-saving technology can reduce the indoor air conditioning load to a certain extent, but due to the limitations of its own characteristics, it is very difficult to further improve the energy-saving performance. Therefore, it is urgent to develop multifunctional integrated energy-saving windows for the next generation of energy-saving glass technology, such as photovoltaic thermal insulation energy-saving windows, photovoltaic color-changing glass windows, and photovoltaic louver energy-saving windows. However, the realization of the multifunction of energy-saving windows will inevitably increase the structural complexity of the glass window, and how to organically combine each function and module and achieve high energy efficiency is a difficult problem to be solved.

[0004] To solve the above problems, a photovoltaic intelligent liquid crystal dimming glass window is provided in Chinese patent No. CN204086734U. The window structure mainly consists of a photovoltaic cell panel, a controller, a lithium battery, and a liquid crystal dimming glass. When there is sunlight, direct current is generated due to the photovoltaic effect of the semiconductor, which powers the controller and the liquid crystal dimming glass. When the photovoltaic power generation is greater than the system power consumption, the controller controls the excess photovoltaic power generation to be stored in the lithium battery. By adjusting the power supply voltage level, the transmittance of the liquid crystal dimming glass is controlled, and under reasonable control strategy, the solar radiation heat entering the room is effectively reduced. However, the blocked solar radiation heat and the heat dissipation of the photovoltaic cell panel are concentrated on the glass window, causing the window temperature to rise and entering the room in the form of heat, causing air conditioning load. The overall device has limited ability to reduce indoor air conditioning load.

[0005] Another Chinese invention patent with publication number CN104879051B provides a photovoltaic louver semiconductor temperature control energy-saving window. The window device comprises a photovoltaic louver assembly, a heat dissipation layer, a double-sided air conditioning channel and a double-layer glass interlayer. The double-sided air conditioning channel is composed of a window frame, an air conditioning cavity, a thermoelectric heat pump chip set, a finned heat sink and a fan. The thermoelectric heat pump chip set is connected to the solar photovoltaic cell through a wire. The photovoltaic louver is used to convert solar radiation into direct current for driving the thermoelectric heat pump chip set to refrigerate or heat. At the same time, the heat dissipation of the window body is effectively realized by using the thermoelectric heat pump to reduce the heat gain of indoor solar radiation, which can effectively reduce the building energy consumption. However, the distance between the semiconductor heat dissipation end and the photovoltaic louver is too close. Although the outer glass skin is provided with two natural ventilation openings at the upper and lower positions, the louver corner structure will increase the ventilation resistance and cause heat accumulation, which will cause the temperature of the semiconductor cooling / heating chip and the photovoltaic louver battery to rise, reduce the operating efficiency and service life, and even cause irreversible damage.

[0006] Therefore, the energy-saving window in the prior art has the following disadvantages:

[0007] (1) The solar radiation heat blocked by the conventional photovoltaic intelligent glass window and the heat dissipation of the photovoltaic cell panel is accumulated on the glass window, which causes the temperature of the window body to rise and enters the indoor room in the form of heat conduction, causing air conditioning load, and the ability to reduce the indoor air conditioning load is weak.

[0008] (2) Although the outer glass skin of the existing energy-saving window is provided with two natural ventilation openings at the upper and lower positions, the distance between the semiconductor heat dissipation end and the photovoltaic louver is too close, and the louver corner structure will increase the ventilation resistance and cause heat accumulation, which will cause the temperature of the semiconductor cooling / heating chip and the photovoltaic louver battery to rise, reduce the operating efficiency and service life, and even cause irreversible damage. SUMMARY

[0009] In order to solve the above problems, the purpose of the present application is to provide a ventilation temperature control photovoltaic energy-saving window.

[0010] The technical scheme of the ventilation temperature control photovoltaic energy-saving window of the present application comprises a window body with a window, and a first glass, an electrochromic glass and a photovoltaic glass are vertically and spaced installed in the window from outside to inside to form an inner interlayer channel and an outer interlayer channel arranged from inside to outside.

[0011] A top channel extending left and right is arranged on the window body at the top of the window, and a plurality of semiconductor chips are arranged on the window body at the lower part of the top channel in a spaced manner. Each semiconductor chip has a first fin located in the top channel.

[0012] The top of the electrochromic glass is arranged apart from each of the semiconductor chips, and the bottom of the electrochromic glass is arranged apart from the bottom of the window body to communicate the inner interlayer channel and the outer interlayer channel.

[0013] Each of the semiconductor chips also has a second fin located in the inner interlayer channel and the outer interlayer channel.

[0014] The window body on one side of the window is further provided with a current direction switch, a controller and a storage battery, the photovoltaic glass is electrically connected to the storage battery, the storage battery is electrically connected to the controller, the current direction switch and each of the semiconductor chips in sequence.

[0015] The top channel is provided with a ventilation opening on the left and right sides thereof and communicated to the outside.

[0016] As a preferred solution, the window body at the bottom of the outer interlayer channel is provided with a plurality of interlayer inner circulation ventilators blowing towards the upper portion to make the air flow move upwards from the outer interlayer channel, contact the second fin and then move downwards into the inner interlayer channel and circulate in sequence.

[0017] As a preferred solution, the window body on the inner side of one of the ventilation openings is further provided with a top ventilator.

[0018] As a preferred solution, the window body is further provided with a temperature sensor for sensing the indoor temperature, and the temperature sensor is electrically connected to the controller.

[0019] As a preferred solution, each of the ventilation openings is provided with an air duct switch.

[0020] As a preferred solution, the inner interlayer channel and the outer interlayer channel are filled with an inert gas.

[0021] As a preferred solution, the inert gas is argon, krypton or xenon.

[0022] Compared with the prior art, the application has the following beneficial effects:

[0023] The photovoltaic energy-saving window of the present application converts potential room load under high solar radiation into electric energy through photovoltaic power generation; meanwhile, it is used to drive electrochromic glass to change light transmittance, block excessive solar radiation heat, and adjust indoor light intensity; moreover, it is used to drive semiconductor chips and inner and outer interlayer channels to adjust air temperature in the interlayer, block heat conduction and exchange, and remove cavity residual heat, thereby greatly reducing indoor load. The cavity formed by the inner and outer interlayer channels is circulated to achieve efficient heat dissipation. The excessive radiation heat blocked by the photovoltaic glass and the electrochromic glass is accumulated in the outer cavity, thereby reducing the photovoltaic power generation efficiency. The double air conditioning channels are used to transport cold or hot air to the interlayer of the double-layer glass, thereby meeting the requirements of heat insulation in summer and heat preservation in winter.

[0024] The photovoltaic energy-saving window of the present application can greatly weaken the heat conduction of the glass window and enhance the heat preservation and insulation performance of the photovoltaic energy-saving window. In view of the problems of heat accumulation and temperature rise of the semiconductor chip and the photovoltaic louver cell of the current energy-saving glass window and the reduced operating efficiency, the photovoltaic energy-saving window of the present application adopts three layers of double channels combined with semiconductor chips to weaken the heat conduction of the glass window and remove the accumulated heat of the photovoltaic glass, the electrochromic glass and the semiconductor chip to the outside. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a side view of the ventilation and temperature control photovoltaic energy-saving window of the present application;

[0026] Figure 2 It is a side view of the ventilation and temperature control photovoltaic energy-saving window of the present application; Figure 1 It is a sectional view of A-A in FIG. 1;

[0027] Figure 3 It is a sectional view of B-B in FIG. 1; Figure 2

[0028] 1, window body, 1-1, inner interlayer channel, 1-2, outer interlayer channel, 1-3, top channel, 2-1, first glass, 2-2, electrochromic glass, 2-3, photovoltaic glass, 3-1, interlayer circulating ventilator, 3-2, top ventilator, 4, semiconductor chip, 4-1, first fin, 4-2, second fin, 5-1, ventilation port, 6, current direction switch, 7, controller, 8, battery. DETAILED DESCRIPTION

[0029] The specific embodiments of the present application will be further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the present application but not to limit the scope of the present application.

[0030] The preferred embodiment of the ventilation and temperature control photovoltaic energy-saving window of the present application is as follows:​Figures 1 to 3 As shown, it includes a window body 1 with a window, in which a first glass 2-1, an electrochromic glass 2-2 and a photovoltaic glass 2-3 are vertically and spaced apart from the outside to the inside, so as to form an inner interlayer channel 1-1 and an outer interlayer channel 1-2 arranged from the inside to the outside; during the specific installation, slots are reserved on the window body 1 on the inside of the window, the lower ends of the first glass 2-1 and the photovoltaic glass 2-3 are fixed to the window body 1 at the bottom of the window, and the upper ends of the first glass 2-1 and the photovoltaic glass 2-3 are fixed to the window body 1 at the top of the window, and can be fixedly connected by gluing; the left and right sides of the electrochromic glass 2-2 are fixed to the window. A top channel 1-3 extending left and right is provided on the window body 1 at the top of the window, and a plurality of semiconductor chips 4 are arranged at intervals on the window body 1 below the top channel 1-3, and each semiconductor chip 4 has a first fin 4-1 located in the top channel 1-3; the top of the electrochromic glass 2-2 layer is spaced apart from each semiconductor chip 4, and the bottom of the electrochromic glass 2-2 layer is spaced apart from the bottom of the slot to connect the inner interlayer channel 1-1 and the outer interlayer channel 1-2, so that a cavity can be formed between the first glass 2-1, the electrochromic glass 2-2 and the photovoltaic glass 2-3; each semiconductor chip 4 also has a second fin 4-2 located in the inner interlayer channel 1-1 and the outer interlayer channel 1-2, as shown in FIG. Figure 2 As shown, the fins on both sides of each semiconductor chip 4 are respectively located in the top channel 1-3, the inner interlayer channel 1-1 and the outer interlayer channel 1-2; the first glass 2-1 is specifically an indoor single-layer glass.

[0031] Among them, ventilation holes 5-1 connected to the outside are set on the left and right sides of the top channel 1-3; a top ventilator 3-2 is also set on the window 1 on the inner side of one of the ventilation holes 5-1 to promote the flow of gas in the top channel 1-3.

[0032] Among them, the window 1 on one side of the window is also provided with a current direction switch 6, a controller and a battery 8. The output interface of the photovoltaic glass 2-3 is connected to the battery 8. The output port of the battery 8 is connected to the controller 7 and the current direction switch 6 in turn through electrical signals. The current direction switch 6 is simultaneously connected to each semiconductor chip 4 and the top ventilator 3-2; the inside of the window 1 is also provided with a temperature sensor and a light sensor for sensing the indoor temperature, and the temperature and light sensor electrical signals are connected to the controller.

[0033] Specifically, the photovoltaic glass 2-3 is connected to a photovoltaic panel assembly, and the photovoltaic panel assembly is connected to the battery 8, each semiconductor chip 4, the top ventilator 3-2 and the vent 5-1 through a wire. A current direction switch 6 is set on the wire, and the current direction switch 6 controls the semiconductor chip 4 and the top ventilator 3-2 in a linkage manner.

[0034] In the aspect of operation control, the temperature sensor senses the indoor temperature signal, and through the comparison with the set temperature comfort value by the controller, the cooling (heating) fin of the semiconductor chip 4 and the top ventilator 3-2 are adjusted, so that the semiconductor chip 4 performs cooling / heating on one side of the inner interlayer channel 1-1 and the outer interlayer channel 1-2 and correspondingly performs heat dissipation / cold dissipation from the outer side channel.

[0035] Further, the window 1 at the bottom of the outer interlayer channel 1-2 is provided with a plurality of interlayer inner circulating ventilators 3-1 blowing towards the upper part, so that the air flow moves upwards from the outer interlayer channel 1-2, contacts the second fin 4-2 and then moves downwards into the inner interlayer channel 1-1.

[0036] The specific working principle of the photovoltaic energy-saving window is as follows: according to the room load of the use object, it can be divided into cold load working condition, hot load working condition and transition working condition (no load or near zero load), the selection of the three working conditions can be determined according to the real-time weather condition, usually: when the solar radiation is strong and the climate is hot, it is cold load working condition, when the climate is cold and the solar radiation is insufficient, it is hot load working condition, and the transition working condition is when the climate is mild and the room load is small, the semiconductor chip 4 does not need to be started, by adjusting the transmittance of the electrochromic glass 2-2 or the frequency of the interlayer inner circulating ventilator 3-1, the room load formed by the window can be close to zero. The top channel 1-3 can be used as a heat dissipation channel or a cold dissipation channel according to different working conditions.

[0037] Preferably, considering that the gas in the inner interlayer channel 1-1 and the outer interlayer channel 1-2 is in contact with the electrochromic glass 2-2 for a long time, the filling gas should be inert gas such as argon, krypton, xenon or their mixture, and appropriate relative humidity should be ensured to cope with the risk of condensation, and the temperature change of the gas causes the pressure difference change between the inside and outside of the cavity.

[0038] Specifically, in the cold load operating condition, the top fan 3-2 and the vent 5-1 switch are opened, and the top channel 1-3 is in communication with the outdoor. The current direction of the top fan 3-2 is determined according to the pressure difference of the left and right vents 5-1 and the outdoor wind direction, and the gas flow direction of the top channel 1-3 is controlled. Under the direct solar radiation and the heat dissipation radiation between the sky and the ground, the photovoltaic glass 2-3 and the battery assembly connected thereto will convert part of the radiation energy into direct current to power the semiconductor chip 4, the top fan 3-2, etc. of the window system, and the remaining direct current is stored in the storage battery 8 as an emergency power supply for the system. In addition, part of the radiation energy reaches the electrochromic glass 2-2 for physical dimming. The voltage value and the spectral transmittance of the electrochromic glass 2-2 are adjusted according to the indoor light intensity requirement. Preferably, the dimming function can be expanded to the near-infrared band, and the near-infrared transmittance is adjusted according to the indoor cold and heat load requirement. On the premise of meeting the indoor light intensity, the excess radiation energy is avoided to increase the room load. The remaining radiation energy is converted into heat on the back of the photovoltaic cell panel and the electrochromic glass 2-2, or causes the temperature of the electrochromic glass 2-2 and the outer cavity gas to rise; at the same time, the direct current generated by the photovoltaic battery assembly is used to drive the semiconductor chip 4 to operate, the second fin 4-2 cools, and the first fin 4-1 heats. The heat of the outer fin is discharged to the outdoor through the top channel 1-3, and the cooling capacity of the inner fin is achieved by the gas in the inner interlayer channel 1-1 and the outer interlayer channel 1-2 first passing through the inner interlayer channel 1-1, the interlayer inner circulating fan 3-1, and then reaching the outer interlayer. The principle of cold gas sinking is used to uniformly cool the surface of the first glass 2-1, greatly weakening the heat conduction of the glass window. At the same time, the inner interlayer inner circulating fan 3-1 at the bottom of the outer interlayer channel 1-2 increases the power for gas flow, and the gas flowing through the outer interlayer is heated to generate buoyancy to push the airflow to rise to the top and exchange heat with the semiconductor chip 4. Thus, a double-interlayer gas inner circulation ventilation is formed, and the window achieves the effect of heat insulation in summer through the circulation.

[0039] In the same way, when the heat load condition is running, open the top ventilator 3-2 and the vent 5-1 switch to be in communication with the outdoor, and determine the current direction of the top ventilator 3-2 according to the wind pressure difference of the left and right vents 5-1 of the top channel 1-3 and the outdoor wind direction. Change the current direction of the input semiconductor chip 4 through the current control switch. The direct solar radiation and the sky and ground heat radiation are irradiated to the photovoltaic glass 2-3, a part of the solar radiation is absorbed by the solar photovoltaic panel and converted into electric energy, a part of the radiation reaches the electrochromic glass 2-2, enters the room or is blocked and absorbed, the principle is the same as above. The remaining radiation energy is converted into heat energy on the back of the photovoltaic cell panel and the electrochromic glass 2-2, causing the temperature of the electrochromic glass 2-2 and the outer cavity gas to rise, and the heat is dissipated to the outer interlayer channel 1-2 through the back of the solar photovoltaic cell panel, forming a flowing greenhouse, which plays a role in heat preservation; at the same time, the direct current generated by the photovoltaic cell assembly is used to drive the semiconductor chip 4 to run, the second fin 4-2 generates heat, and the first fin 4-1 dissipates cold, and the cold of the first fin 4-1 is discharged to the outdoor through the top channel 1-3. In the same way, according to the principle of hot air rising, the gas in the outer interlayer channel 1-2 rises after being heated to generate buoyancy to push the air to rise to the top and exchange heat with the hot end of the semiconductor chip 4, and the interlayer circulating fan 3-1 also provides power for the gas flow, and the heated gas flows through the inner interlayer channel 1-1, forming a heat preservation air flow, which effectively reduces the heat load formed by the window through heat conduction, and the gas flows through the bottom interlayer circulating fan 3-1 to the outer interlayer channel 1-2, thereby forming a circulating ventilation in the inner interlayer channel 1-1 and the outer interlayer channel 1-2, which makes the window achieve the effect of heat preservation in winter.

[0040] In the operation process of the photovoltaic energy-saving window of the present application, the solar radiation heat blocked by the photovoltaic driving color-changing glass window and the heat dissipation converted by the photovoltaic cell panel are converted in the glass window and dissipated into the outer interlayer channel 1-2, and circulate in the inner interlayer channel 1-1 and the outer interlayer channel 1-2, and in the cold load condition, the cold and heat conversion of the semiconductor chip 4 is discharged to the outdoor, in the heat load condition, all of them are used for heat preservation in the inner interlayer channel 1-1, and in the transition condition, part of them can be used for heat preservation in the inner interlayer channel 1-1, which reduces the temperature difference between the cold and hot ends of the semiconductor chip 4, improves the cold / heat generation efficiency, and effectively reduces the temperature of the photovoltaic assembly and the color-changing glass, and improves the photoelectric conversion efficiency. In addition, the hot air buoyancy effect of the outer interlayer cavity and the wind pressure of the top channel 1-3 vent 5-1 are fully utilized to reduce the power consumption of the top ventilator 3-2. In summary, the photovoltaic energy-saving window of the present application combines with the semiconductor cooling / heat supply system, greatly reduces the heat conduction and heat transfer of the glass window, effectively solves the problem of high temperature of the photovoltaic color-changing glass window, and reduces the air conditioning load caused by heat conduction and heat transfer. Moreover, while reducing the heat conduction and heat transfer of the glass window, the heat generated by the photovoltaic cell, liquid crystal glass and semiconductor chip 4 is discharged to the outdoor, effectively solving the problem of heat accumulation, temperature rise and operation efficiency reduction of the semiconductor chip and photovoltaic louver cell of the current energy-saving glass window.

[0041] The application adopts photovoltaic color-changing window double-jacket cavity temperature control and internal circulation ventilation and heat dissipation method, constructs a communicated double-jacket cavity in the inner jacket channel 1-1 and the outer jacket channel 1-2, controls the inner layer cavity gas temperature by the semiconductor cold and heat system, and takes away the excess heat dissipation of the outer layer by the circulation ventilation system, so that the whole glass window system realizes efficient energy-saving operation.

[0042] The application is an organic combination of photovoltaic glass 2-3, color-changing glass, double-jacket cavity, semiconductor cold and heat and control structures and systems, and its use relates to photovoltaic power generation and storage, light modulation and color change and heat flow transmission and other energy transmission and conversion processes, and the collaborative management of light-electricity-heat among them is the key to realize efficient operation and energy saving.

[0043] The above is only the preferred embodiment of the application, and it should be pointed out that for ordinary skilled persons in the art, several improvements and replacements can be made without departing from the technical principles of the application, and these improvements and replacements should also be regarded as the protection scope of the application.

Claims

1. A ventilated temperature controlled photovoltaic energy saving window characterized in that, The window body comprises a window, and a first glass, an electrochromic glass and a photovoltaic glass are vertically and spacedly arranged in the window from inside to outside to form an inner interlayer channel and an outer interlayer channel arranged from inside to outside; A top channel extending leftward and rightward is arranged on the window body at the top of the window, and a plurality of semiconductor chips are spacedly arranged on the window body below the top channel, each of the semiconductor chips having a first fin arranged in the top channel; The electrochromic glass is arranged in the top channel and spaced from each of the semiconductor chips, and the bottom of the electrochromic glass is spaced from the bottom of the window body to communicate the inner interlayer channel and the outer interlayer channel; Each of the semiconductor chips further has a second fin arranged in the inner interlayer channel and the outer interlayer channel; The window body at one side of the window further comprises a current direction switch, a controller and a storage battery, the photovoltaic glass is electrically connected to the storage battery, the storage battery is electrically connected to the controller, the current direction switch and each of the semiconductor chips in sequence, and the top channel is provided with a ventilation opening communicating with the outside at left and right sides thereof; The window body at the bottom of the outer interlayer channel is provided with a plurality of interlayer internal circulation ventilators blowing air upward to make air flow move upward from the outer interlayer channel, contact the second fin and then move downward into the inner interlayer channel, and circulate in sequence.

2. The photovoltaic energy saving window of claim 1, wherein: The window body at the inner side of one of the ventilation openings is further provided with a top ventilator.

3. The photovoltaic energy saving window of claim 1, wherein: The window body is further provided with a temperature sensor and a light sensor for sensing indoor temperature and light intensity respectively, and the temperature sensor and the light sensor are electrically connected to the controller.

4. The photovoltaic energy saving window of claim 1, wherein: Each of the ventilation openings is provided with an air duct switch.

5. The photovoltaic energy saving window of claim 1, wherein: The inner interlayer channel and the outer interlayer channel are filled with inert gas.

6. The photovoltaic energy saving window of claim 5, wherein: The inert gas is argon, krypton or xenon.

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