CN212837341U - A Novel Thermochromic Smart Window with Adjustable Emissivity - Google Patents
A Novel Thermochromic Smart Window with Adjustable Emissivity Download PDFInfo
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- CN212837341U CN212837341U CN202021020044.8U CN202021020044U CN212837341U CN 212837341 U CN212837341 U CN 212837341U CN 202021020044 U CN202021020044 U CN 202021020044U CN 212837341 U CN212837341 U CN 212837341U
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- 239000011521 glass Substances 0.000 claims abstract description 52
- 230000005855 radiation Effects 0.000 claims abstract description 50
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 claims abstract description 47
- 239000000017 hydrogel Substances 0.000 claims abstract description 47
- 239000001863 hydroxypropyl cellulose Substances 0.000 claims abstract description 47
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 claims abstract description 46
- 239000004698 Polyethylene Substances 0.000 claims abstract description 41
- -1 polyethylene Polymers 0.000 claims abstract description 41
- 229920000573 polyethylene Polymers 0.000 claims abstract description 41
- 238000000576 coating method Methods 0.000 claims abstract description 25
- 239000011248 coating agent Substances 0.000 claims abstract description 24
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 24
- 239000000758 substrate Substances 0.000 claims abstract description 24
- 150000004706 metal oxides Chemical class 0.000 claims abstract description 23
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000004984 smart glass Substances 0.000 claims description 30
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000001816 cooling Methods 0.000 abstract description 16
- 238000002834 transmittance Methods 0.000 abstract description 16
- 238000005265 energy consumption Methods 0.000 abstract description 14
- 230000000694 effects Effects 0.000 description 11
- 238000010438 heat treatment Methods 0.000 description 11
- 238000002474 experimental method Methods 0.000 description 9
- 230000002349 favourable effect Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 230000007704 transition Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 239000000306 component Substances 0.000 description 4
- 238000002845 discoloration Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002329 infrared spectrum Methods 0.000 description 3
- 239000005344 low-emissivity glass Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
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- 238000000411 transmission spectrum Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 238000000034 method Methods 0.000 description 1
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Abstract
本实用新型公开了一种新型可调发射率的热变色智能窗户，包括窗框，窗框内部装设有玻璃组件，玻璃组件包括玻璃基板，玻璃基板一侧沉积有用于调节玻璃基板在中红外区域具有低辐射功能的金属氧化物涂层，金属氧化物涂层是一层透明氧化铟锡膜，玻璃基板另一侧装设有太阳能调节高辐射部分，太阳能调节高辐射部分包括第一聚乙烯层，第一聚乙烯层上部装设有羟丙基纤维素水凝胶层，羟丙基纤维素水凝胶层还装设有第二聚乙烯层，羟丙基纤维素水凝胶层被第一聚乙烯层和第二聚乙烯层包裹在中间，本实用新型可根据季节与气候的变化，动态地调节不同波段热辐射和太阳透过率，从而达到降低室内温度和节约能耗，降低建筑物夏季的冷却负荷和减少冬季的热量损失。
The utility model discloses a novel thermochromic intelligent window with adjustable emissivity, which comprises a window frame, a glass component is arranged inside the window frame, the glass component comprises a glass substrate, and one side of the glass substrate is deposited with a glass substrate for adjusting the mid-infrared intensity of the glass substrate. The area has a metal oxide coating with low radiation function, the metal oxide coating is a layer of transparent indium tin oxide film, the other side of the glass substrate is provided with a solar energy regulation high radiation part, and the solar energy regulation high radiation part includes a first polyethylene layer, the upper part of the first polyethylene layer is equipped with a hydroxypropyl cellulose hydrogel layer, the hydroxypropyl cellulose hydrogel layer is also equipped with a second polyethylene layer, and the hydroxypropyl cellulose hydrogel layer is The first polyethylene layer and the second polyethylene layer are wrapped in the middle, and the utility model can dynamically adjust the thermal radiation and solar transmittance of different wavebands according to the changes of seasons and climates, so as to reduce the indoor temperature and save energy consumption. Building cooling loads in summer and reducing heat loss in winter.
Description
Technical Field
The utility model relates to a heat recovery utilizes technical field, in particular to novel heat discoloration smart window of adjustable emissivity.
Background
The sign of paris agreement in 2018 emphasizes the importance of setting the global warming limit at 1.5 ℃ to reduce carbon dioxide emissions and save energy, and calls for global society to reduce carbon emissions. Because the building energy consumption occupies 40% of the global energy consumption, the energy consumption of heating, ventilation and air conditioning application occupies half of the building energy consumption, and the improvement of the application energy efficiency of the air conditioner becomes a key task for improving the building sustainability.
Windows are considered the least energy efficient part of a building compared to other building elements. Direct sunlight from the window is a major factor causing the temperature of the room to rise in summer, and more than 30% of the energy loss in winter is also caused by the window. Light with three wavelengths, namely visible light (360-. Therefore, an ideal energy-saving smart window should have a low solar transmittance and a high mid-infrared emissivity in summer to prevent the window from being heated by sunlight and rapidly dissipating heat through thermal radiation; in winter, the window must have high transparency in both visible and near infrared bands and low mid-infrared emissivity to facilitate solar heating and prevent heat loss. The promising energy-saving intelligent window has both higher solar modulation capability Δ Tsol and good mid-infrared emissivity switching capability.
The color-developing energy-saving window is one of the current popular research directions because it can regulate the transmission of sunlight when receiving stimulation. According to different stimuli, the color development energy-saving window can be divided into thermochromism, electrochromism, photochromism and the like. Among the different color development techniques, thermochromic color is considered to be the most robust, economically and rationally motivated by its passive and zero energy input properties. Although the color developing smart window shows good solar modulation ability Δ Tsol, there are some gaps from the ideal smart window because the color developing smart window cannot change the infrared emissivity therein. On the other hand, passive daytime radiative cooling is a newly discovered technology that assists in the cooling of rooms by reflecting sunlight and radiating heat in the form of mid-infrared to cold outer spaces. Unlike conventional heating and ventilation technologies such as air conditioning, the radiation cooling technology does not require an external power supply and the use of a coolant. Radiation cooling materials are widely used as cooling sources, radiation cooling films, structural materials and energy saving coatings due to their unique properties. However, the nature of the radiation-cooled material limits its application as a smart window. First, most radiation-cooled materials have low light transmittance, and high light transmittance is critical for window applications. Secondly, the mid-infrared emissivity of most radiant cooling materials cannot be changed, and the radiant cooling effect increases the heating energy consumption in winter, thereby not only offsetting the heating energy consumption saved in summer, but also leading to the increase of annual energy consumption. Thus, radiation cooled materials are undesirable in winter and their use in seasonally changing dynamic environments is limited.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above-mentioned defect among the prior art, provide a novel thermal discoloration smart window of adjustable emissivity, can adjust different wave band heat radiation and solar transmittance according to the change of season with the weather dynamically to reach and reduce indoor temperature and practice thrift the energy consumption, be favorable to reducing the building power consumption, be favorable to reducing the cooling load in building summer and reduce winter calorific loss.
In order to realize the above-mentioned purpose, the utility model provides a novel thermal discoloration smart window of adjustable emissivity, including the window frame, the inside glass subassembly that has installed of window frame, the glass subassembly includes the glass substrate, glass substrate one side deposit has the metal oxide coating that is used for adjusting the glass substrate and has the low radiation function in the middle infrared region, the metal oxide coating is the transparent indium tin oxide film of one deck, the solar energy regulation high radiation part has been installed to the glass substrate opposite side, the solar energy regulation high radiation part includes first polyethylene layer, hydroxypropyl cellulose hydrogel layer has been installed on first polyethylene layer upper portion, the second polyethylene layer has still been installed to hydroxypropyl cellulose hydrogel layer, hydroxypropyl cellulose hydrogel layer is wrapped up in the centre by first polyethylene layer and second polyethylene layer.
Preferably, the upper portion of the window frame is provided with a first rotating shaft, the lower portion of the window frame is provided with a second rotating shaft, and the window frame can rotate around the first rotating shaft and the second rotating shaft in the front and back directions.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the utility model discloses be equipped with the window frame, the inside glass subassembly that has installed of window frame, the glass subassembly includes the glass substrate, glass substrate one side deposit has the metal oxide coating that is used for adjusting the glass substrate and has the low radiation function in the middle infrared region, the metal oxide coating is the transparent indium tin oxide film of one deck, the high radiation part is adjusted to solar energy has been installed to the glass substrate opposite side, the high radiation part is adjusted to solar energy includes first polyethylene layer, hydroxypropyl cellulose hydrogel layer has been installed on first polyethylene layer upper portion, hydroxypropyl cellulose hydrogel layer has still been installed the second polyethylene layer, hydroxypropyl cellulose hydrogel layer is wrapped up in the centre by first polyethylene layer and second polyethylene layer, the metal oxide coating has the low radiation function in the middle infrared region, can block the conduction of thermal radiation, first polyethylene layer and second polyethylene layer can prevent hydroxypropyl cellulose hydrogel layer from becoming dry, the hydroxypropyl cellulose hydrogel layer has very high transparency below the transition temperature, sunlight can easily penetrate through the hydroxypropyl cellulose hydrogel layer, once the temperature exceeds the transition temperature, the hydroxypropyl cellulose hydrogel layer becomes opaque and blocks the sunlight, the hydroxypropyl cellulose hydrogel layer has a high radiation function and has very high middle infrared emissivity, the two functional characteristics are combined, the transmittance of the sunlight can be automatically adjusted, and good middle infrared emissivity switching capability is realized, the window frame is designed to be capable of being turned over, different requirements in summer and winter are met, in summer, the solar energy can adjust the high radiation part to face outdoors and the metal oxide coating to face indoors, heat is mainly released to an outer space in a middle infrared mode, in the morning and evening, the window keeps transparent to meet the lighting requirement, in the noon, the window becomes opaque to block the heating of the room by the sunlight, due to the combination of the radiation cooling effect and the sunlight adjusting effect, the room can keep a lower temperature, in winter, the metal oxide coating faces outdoors, the solar energy adjusting high-radiation part faces indoors, indoor heat cannot be transmitted to the outdoors through heat radiation, heat loss is prevented, and meanwhile, the bright transparent window can also heat the room through sunlight and reduce heating energy consumption; the utility model discloses can be according to the change of season with the weather, adjust different wave band heat radiation and solar transmittance dynamically to reach and reduce indoor temperature and practice thrift the energy consumption, be favorable to reducing the building power consumption, be favorable to reducing the cooling load in building summer and reduce winter calorific loss.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of a novel thermochromic smart window with adjustable emissivity provided by the invention;
FIG. 2 is a schematic view of an exploded view of a glass assembly of a new emissivity-adjustable thermochromic smart window provided by the present invention;
fig. 3 is a schematic view of the working principle of the novel thermochromic smart window with adjustable emissivity provided by the invention in summer and winter;
fig. 4 is a schematic view of ultraviolet light, visible light and near infrared spectrum of a novel thermochromic smart window with adjustable emissivity at 20 ℃ and 60 ℃;
FIG. 5 is a schematic representation of the transmission spectra of polyethylene and hydroxypropyl cellulose hydrogels in the 6-16 μm range;
fig. 6 is a schematic view of an emissivity spectrum of a high emissivity side and a low emissivity side of a novel thermochromic smart window with adjustable emissivity provided by the invention in different states;
fig. 7 is a schematic view of an infrared image of a low emissivity side and a high emissivity side of a novel thermochromic smart window with adjustable emissivity provided by the present invention at different temperatures;
FIG. 8 is an air temperature curve of thermochromic smart windows, ordinary low-e glass, hydroxypropyl cellulose hydrogel, ordinary glass, and ambient temperature in a summer outdoor energy saving effect experiment in Singapore;
FIG. 9 is a temperature difference curve of a thermochromic smart window and common glass in a summer outdoor energy saving effect experiment in Singapore;
fig. 10 is an air temperature curve of thermochromic smart windows, normal low-emissivity glass, hydroxypropyl cellulose hydrogel, normal glass, and ambient temperature in the outdoor energy saving effect experiment in south of china in winter;
fig. 11 is a temperature difference curve of a thermochromic smart window and common glass in an outdoor energy-saving effect experiment in the south of china in winter.
The figure includes:
1-window frame, 2-glass component, 21-glass substrate, 3-metal oxide coating, 4-solar energy adjusting high radiation part, 41-first polyethylene layer, 42-hydroxypropyl cellulose hydrogel layer, 43-second polyethylene layer, 11-first rotating shaft and 12-second rotating shaft.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present embodiment, and it is obvious that the described embodiment is an embodiment of the present invention, not all embodiments. Based on this embodiment in the present invention, all other embodiments obtained by the ordinary skilled person in the art without creative work all belong to the protection scope of the present invention.
Referring to fig. 1 to 3, the present invention provides a new thermochromic smart window with adjustable emissivity, which comprises a window frame 1, the window frame 1 is internally provided with a glass component 2, the glass component 2 comprises a glass substrate 21, a metal oxide coating 3 for adjusting the glass substrate 21 to have a low radiation function in the mid-infrared region is deposited on one side of the glass substrate 21, the metal oxide coating 3 is a layer of transparent indium tin oxide film, the other side of the glass substrate 21 is provided with a solar energy adjusting high radiation part 4, the solar energy adjusting high radiation part 4 comprises a first polyethylene layer 41, a hydroxypropyl cellulose hydrogel layer 42 is arranged on the upper part of the first polyethylene layer 41, the hydroxypropyl cellulose hydrogel layer 42 is further provided with a second polyethylene layer 43, the hydroxypropyl cellulose hydrogel layer 42 being wrapped in between by the first 41 and second 43 polyethylene layers.
The glass substrate 21 is an important component of the glass assembly 2, and serves as a mechanical support layer of a thermochromic smart window, the metal oxide coating 3 has a low radiation function in the middle infrared region and can block the conduction of thermal radiation, the first polyethylene layer 41 and the second polyethylene layer 43 wrap the hydroxypropyl cellulose hydrogel layer 42 in the middle, the first polyethylene layer 41 and the second polyethylene layer 43 have high transparency and good chemical stability in the visible light, near infrared and middle infrared bands, so the hydroxypropyl cellulose hydrogel layer 42 is prevented from drying by the first polyethylene layer 41 and the second polyethylene layer 43, the hydroxypropyl cellulose hydrogel layer 42 contains a large amount of moisture, the hydroxypropyl cellulose hydrogel layer 42 is a core component of the solar energy adjusting high radiation part 4, and the hydroxypropyl cellulose hydrogel layer 42 has good solar modulation capability, the hydroxypropyl cellulose hydrogel layer 42 has high transparency below the transition temperature, sunlight can easily penetrate through the hydroxypropyl cellulose hydrogel layer 42, once the temperature exceeds the transition temperature, the hydroxypropyl cellulose hydrogel layer 42 becomes opaque and blocks the sunlight, and the hydroxypropyl cellulose hydrogel layer 42 also has a high radiation function and high intermediate infrared emissivity as water has high intermediate infrared emissivity, and the thermochromic intelligent window combines the two functional characteristics, so that the sunlight transmittance can be automatically adjusted, and good intermediate infrared emissivity switching capability is realized.
Referring to fig. 1, a first rotating shaft 11 is installed at an upper portion of the window frame 1, a second rotating shaft 12 is installed at a lower portion of the window frame 1, and the window frame 1 can rotate around the first rotating shaft 11 and the second rotating shaft 12 in a front-back direction.
Please refer to fig. 1 and 3, the utility model discloses a window frame 1 designs to be can overturn, satisfies different demands in summer and winter, summer, solar energy adjusts high radiation part 4 towards outdoor and metal oxide coating 3 towards indoor, makes the heat mainly release outer space with the mid-infrared form, and in the morning and evening, the window will keep transparent in order to satisfy the demand of daylighting, and noon becomes opaque in order to block the heating of sunshine to the room, because the combination of radiation cooling and sunshine regulation effect, the room will keep lower temperature, winter, metal oxide coating 3 towards outdoor and solar energy adjusts high radiation part 4 towards indoor, indoor heat can't transmit to outdoors through thermal radiation, has prevented the thermal loss, and simultaneously, the transparent window of can also let sunshine heat the room, reduces the heating energy consumption.
The light transmittance Tlum of the thermochromic intelligent window is 71.2%, and the dimming capacity delta Tsol is 62.6%. The mid-infrared emissivity of two sides of the thermochromic intelligent window is also remarkably different, the side of the solar energy adjusting high-radiation part 4 is 0.95, and the side of the metal oxide coating 3 is 0.4.
The thermochromic intelligent window shows excellent energy-saving performance in indoor and outdoor experiments, achieves temperature drop of about 30 ℃ in the indoor and outdoor experiments in summer compared with a common glass window, and is expected to become a feasible way for realizing energy saving and high efficiency of buildings all year round due to the performance of the thermochromic intelligent window.
As shown in fig. 4, the ultraviolet, visible and near infrared spectra of thermochromic smart windows at 20 ℃ and 60 ℃ are shown, respectively. At low temperature (20 ℃), the light transmittance of the thermochromic intelligent window is as high as 71.2%. Due to the infrared absorption characteristic of the metal oxide coating 3, the infrared spectrum with the wavelength of more than 1400nm is completely shielded, and in addition, the thermochromic smart window has good light transmittance regulating capacity Tlum of 62.6 percent and sunlight regulating capacity Delta Tsol of 40.0 percent.
As shown in FIG. 5, the transmission spectra of the polyethylene and hydroxypropyl cellulose hydrogels were in the range of 6-16 μm. It can be observed that polyethylene shows high transmission up to 80% and hydroxypropyl cellulose hydrogel shows about 50% transmission in the radiation cooling window (8-13 μm). Polyethylene has high infrared transparency, which enables hydroxypropyl cellulose hydrogel to effectively release heat into space.
As shown in fig. 6, emissivity spectra of the high emissivity side and the low emissivity side in different states are shown. In both cold and hot states, the high emissivity side has a higher emissivity up to 0.95, while the low emissivity side has an emissivity of 0.35, which is significantly lower than that of ordinary glass by 0.88. Thus, it can be concluded that: the window has the ability to directionally control mid-infrared radiation.
As shown in fig. 7, infrared images of the low emissivity side and the high emissivity side at different temperatures are shown. The results show that the temperature of the high emissivity side is above the background temperature and the temperature of the low emissivity side is below the background temperature. This temperature difference is due to the difference in mid-ir emissivity of the two sides of the window. Since the high emissivity side has a mid ir emissivity of 0.95 above the mid ir emissivity of 0.88 of the background and has a higher ir radiation intensity than the background, the high emissivity side appears hotter than the background. On the other hand, the low emissivity side has a mid IR emissivity of 0.35 below the mid IR emissivity of 0.88 of the background, so the low emissivity side emits less IR radiation and appears cooler than the background.
As shown in fig. 8 and 9, the temperature readings and temperature differences of the thermochromic smart window, the common low-emissivity glass, the hydroxypropyl cellulose hydrogel and the common glass in the outdoor energy-saving effect experiment in summertime of singapore are shown. The thermochromic intelligent window has remarkable energy-saving performance, and the room with the thermochromic intelligent window has the lowest indoor temperature in four rooms in the daytime. It is worth mentioning that the temperature difference between the thermochromic intelligent window room and the common glass window room reaches 27.5 ℃ from 12:00 to 15:00, and meanwhile, the temperature of the thermochromic intelligent window room is lower than that of the traditional hydroxypropyl cellulose hydrogel room by 9 ℃ and that of the common low-radiation glass room by 20 ℃, so that the thermochromic intelligent window has high solar energy modulation capability and good medium infrared emissivity switching capability, and has good energy-saving performance.
As shown in fig. 10 and 11, the temperature readings and temperature differences of the thermochromic smart window, the common low-emissivity glass, the hydroxypropyl cellulose hydrogel and the common glass in the outdoor energy-saving effect experiment in the south of china in winter are shown. At night in winter, the temperature difference of the indoor temperature of the common low-radiation glass room in a whole day is 15 ℃ at most, the temperature difference of the indoor temperature of the thermochromic intelligent window room in a whole day is 13.5 ℃ at the second highest, and the temperature difference of the indoor temperature of the common glass window room in a whole day is 12.5 ℃ at least. The experiment or observation result proves that the thermochromic intelligent window has better energy-saving performance than a common glass window in winter for a whole day, and further proves the energy-saving performance of the thermochromic intelligent window.
The hydroxypropyl cellulose hydrogel layer 42 is filled between the first polyethylene layer 41 and the second polyethylene layer 43, and the metal oxide coating 3 with the low radiation function is deposited on the glass substrate 21, so that the novel thermochromic intelligent window with adjustable emissivity is manufactured. Thermochromic smart windows achieve satisfactory performance in both solar energy transmittance adjustment and mid-ir emissivity switching. The thermochromic smart window shows a high light transmittance Tlum of 71% at room temperature and has a good light emission adjusting capability of 62% when heated. In addition, the hydroxypropyl cellulose hydrogel layer 42 exhibits a very high mid-infrared emissivity of 0.95. Compared with common glass, the thermochromic intelligent window has the advantage that the temperature is reduced by about 30 ℃ in summer and daytime due to the good solar light transmittance adjusting capability and the unique intermediate infrared emissivity switching characteristic. In addition, at the same time, the thermochromic smart window also shows satisfactory energy-saving capability in winter. In summary, the thermochromic smart windows have a great role in improving building sustainability, combining the advantages of the low mid-ir emissive metal oxide coating 3 and the high mid-ir emissivity thermochromic hydroxypropyl cellulose hydrogel layer 42.
To sum up, the beneficial effects of the utility model reside in that:
the metal oxide coating 3 has a low radiation function in the mid-infrared region, and can block the conduction of heat radiation, the first polyethylene layer 41 and the second polyethylene layer 43 can prevent the hydroxypropyl cellulose hydrogel layer 42 from drying, the hydroxypropyl cellulose hydrogel layer 42 has very high transparency below the transition temperature, the sunlight can easily penetrate, once the temperature exceeds the transition temperature, the hydroxypropyl cellulose hydrogel layer 42 becomes opaque and blocks the sunlight, the hydroxypropyl cellulose hydrogel layer 42 has a high radiation function, has very high mid-infrared emissivity, combines the two functional characteristics, can automatically adjust the transmittance of the sunlight, and realizes good mid-infrared emissivity switching capability, the window frame 1 of the utility model is designed to be capable of overturning, and meets different requirements in summer and winter, in summer, the solar energy adjusting high radiation part 4 faces outdoors and the metal oxide coating 3 faces indoors, so that heat is mainly released to an outer space in a medium infrared mode, a window is kept transparent in the morning and the evening to meet the lighting requirement, the window is made opaque in the noon to prevent sunlight from heating the room, and the room is kept at a lower temperature due to the combination of radiation cooling and sunlight adjusting effects; in winter, the metal oxide coating 3 faces outdoors, the solar energy adjusting high-radiation part 4 faces indoors, indoor heat cannot be transmitted to the outdoors through heat radiation, heat loss is prevented, and meanwhile, the bright transparent window can also heat the room through sunlight and reduce heating energy consumption; the utility model discloses can be according to the change of season with the weather, adjust different wave band heat radiation and solar transmittance dynamically to reach and reduce indoor temperature and practice thrift the energy consumption, be favorable to reducing the building power consumption, be favorable to reducing the cooling load in building summer and reduce winter calorific loss.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111550157A (en) * | 2020-06-06 | 2020-08-18 | 中新国际联合研究院 | Novel thermal discoloration intelligent window with adjustable emissivity |
| CN113345354A (en) * | 2021-05-25 | 2021-09-03 | 翟军明 | Holographic projection device capable of being used for illumination |
| WO2023092315A1 (en) * | 2021-11-23 | 2023-06-01 | 广东赞禄科技有限公司 | Smart liquid-filled window using plasmon suspension liquid for color modulation, and smart liquid-filled window system |
-
2020
- 2020-06-06 CN CN202021020044.8U patent/CN212837341U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111550157A (en) * | 2020-06-06 | 2020-08-18 | 中新国际联合研究院 | Novel thermal discoloration intelligent window with adjustable emissivity |
| CN111550157B (en) * | 2020-06-06 | 2025-04-15 | 中新国际联合研究院 | A new thermochromic smart window with adjustable emissivity |
| CN113345354A (en) * | 2021-05-25 | 2021-09-03 | 翟军明 | Holographic projection device capable of being used for illumination |
| WO2023092315A1 (en) * | 2021-11-23 | 2023-06-01 | 广东赞禄科技有限公司 | Smart liquid-filled window using plasmon suspension liquid for color modulation, and smart liquid-filled window system |
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