Multifunctional photovoltaic shutter energy-saving window
Technical Field
The invention belongs to the technical field of building doors and windows, and particularly relates to a multifunctional photovoltaic shutter energy-saving window integrating functions of sun shading in summer, heating in winter, anti-dazzle, power generation and the like.
Background
The window plays an important role in providing natural lighting for indoor and meeting the visual needs of people in the building, but is also a weak link of heat preservation and heat insulation of the building enclosure structure, and restricts the improvement of the energy saving level of the building. In the prior art, a double-layer or multi-layer glass structural design is mostly adopted, and the heat transfer resistance of the window is increased by adding an air layer, so that the heat preservation and insulation performance of the window is improved to a certain extent. In addition, in order to reduce solar radiation heat gain through a window in summer and reduce the probability of glare occurrence, a technology such as window sunshade or low-radiation glass is often adopted, but in winter, building heat gain is reduced and heat load is increased, so that the building window has the problem that both summer sunshade and winter heat gain are difficult to achieve.
The existing window technology can reflect or absorb solar radiation as required, but does not give consideration to the lighting performance of the window, and can not solve the problem that the solar radiation heat gain caused by lighting of the window in summer is obviously increased. In addition, the thermal insulation performance of the window still needs to be further improved. If a multifunctional energy-saving window with better heat preservation and insulation performance and integrating functions of sun shading in summer, heating in winter, anti-dazzle, power generation and the like can be developed, the energy-saving window has important significance in promoting energy conservation and emission reduction of buildings.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the contradiction that the summer sun-shading and winter heat getting of the traditional building window are mutually restricted, and provides the multifunctional photovoltaic shutter energy-saving window integrating the functions of summer sun-shading, winter heat getting, anti-dazzle, power generation and the like.
In order to solve the technical problems, the technical scheme provided by the invention is that the multifunctional photovoltaic shutter energy-saving window is characterized by comprising outer glass, an air cavity, a multifunctional shutter assembly, inner glass, a window frame and an adjusting device, wherein the outer glass and the inner glass are fixed on the window frame in parallel, the air cavity is positioned between the outer glass and the inner glass, and the multifunctional shutter assembly is arranged in the air cavity.
The multifunctional shutter assembly comprises a shutter and a rotating shaft, wherein the shutter is fixed on the rotating shaft and can rotate around the rotating shaft. The shutter consists of a blade A, a blade B, a blade C, a blade D and a connecting device which are sequentially arranged at an included angle of 90 degrees, wherein the blade A is made of a material which transmits visible light and blocks infrared radiation, such as high-transmission low-radiation glass, the blade C is made of a material which transmits solar radiation in all wave bands, such as common glass, the blade B and the blade D are made of photovoltaic panels, the surface of the blade B adjacent to the blade A and the surface of the blade D adjacent to the blade A are the back surfaces of the photovoltaic panels, the surface of the blade B adjacent to the blade C is made of a diffuse reflection material which is high in reflection for solar radiation, such as a nano high-reflection coating, and the surface of the blade B adjacent to the blade C and the surface of the blade D adjacent to the blade C are the front surfaces of the photovoltaic panels which are high in absorption for solar radiation.
The air cavity is filled with air, inert gas or vacuumized, and is internally provided with a high-efficiency moisture absorbent or getter to maintain the dryness or the vacuum degree in the air cavity.
The adjusting device can adjust the rotation angle of the multifunctional shutter assembly manually or electrically.
The multifunctional louver component is adjusted to enable the blade D to be at the uppermost position in a summer sun-shading working condition, at the moment, the multifunctional louver can reflect solar radiation to the outdoor environment in a diffuse reflection mode, sun-shading is achieved, building cold load is reduced, light pollution is avoided, 3 the multifunctional louver component is adjusted to enable the blade A to be at the uppermost position in a summer day lighting working condition, at the moment, the multifunctional louver blocks infrared radiation, only visible light is allowed to penetrate and enter the indoor environment in a diffuse reflection mode, solar radiation heat is reduced, and the possibility of glare is reduced when natural lighting is achieved, 4 the multifunctional louver component is adjusted to enable the blade C to be at the uppermost position in a winter day lighting working condition, at the moment, the multifunctional louver allows full-wavelength solar radiation to penetrate, and meets natural lighting requirements, and if natural illuminance is too high in winter, the multifunctional louver component is adjusted to enable the blade B to be at the uppermost position, and the multifunctional louver is prevented from being at the uppermost position. Under the working condition, the solar radiation absorbed by the shutters B and D is partially converted into electric energy, and the rest is stored in the air cavity in a heat energy mode, so that the building heat load is reduced, and the comprehensive utilization rate of solar energy is improved. It is worth pointing out that in practical application, the rotation angle of the multifunctional shutter assembly can be continuously adjusted so as to meet the functional requirements of different application scenes.
Compared with the prior art, the multifunctional photovoltaic shutter energy-saving window has the beneficial effects that (1) the multifunctional photovoltaic shutter energy-saving window has excellent heat preservation and insulation performance, and (2) the multifunctional shutter assembly can realize multiple functions of sun shading in summer, heating in winter, anti-dazzle, power generation and the like by adjusting the rotation angle of the multifunctional shutter assembly. Therefore, the multifunctional photovoltaic shutter energy-saving window is beneficial to the cooperative reduction of cold and hot loads and illumination loads of a building, and has important significance in promoting energy conservation and emission reduction of the building.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of a multifunctional photovoltaic shutter energy-saving window according to the present invention.
Fig. 2 is a schematic diagram of a summer sunshade according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a summer lighting condition according to an embodiment of the present invention.
FIG. 4 is a schematic diagram of winter heating and lighting conditions according to an embodiment of the present invention.
Legend description:
100-outer glass;
200-an air cavity;
300—a multi-function shutter assembly;
310-shutter;
311-blade a;
312-blade B;
313-leaf C;
314—blade D;
315—a connection device;
320-rotating shaft;
400-inner glass;
500-window frames;
600-adjusting device.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which the embodiments are shown, and the embodiments are only some, but not all, embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, the multifunctional photovoltaic shutter energy-saving window comprises outer glass (100), an air cavity (200), a multifunctional shutter assembly (300), inner glass (400), a window frame (500) and an adjusting device (600), wherein the outer glass (100) and the inner glass (400) are fixed on the window frame (500) in parallel, the air cavity (200) is positioned between the outer glass (100) and the inner glass (400), and the multifunctional shutter assembly (300) is arranged in the air cavity (200).
The multifunctional shutter assembly (300) comprises a shutter (310) and a rotating shaft (320), wherein the shutter (310) is fixed on the rotating shaft (320) and can rotate around the rotating shaft (320). The shutter (310) comprises a blade A (311), a blade B (312), a blade C (313), a blade D (314) and a connecting device (315) which are sequentially arranged at an included angle of 90 degrees, wherein the blade A (311) is made of a material which transmits visible light and blocks infrared radiation, such as high-transmission low-radiation glass, the blade C (313) is made of a material which transmits solar radiation in all wave bands, such as common glass, the blade B (312) and the blade D (314) are made of light solid material photovoltaic panels, the surface of the blade B (312) adjacent to the blade A (311) and the surface of the blade D (314) adjacent to the blade A (311) are the back surfaces of the photovoltaic panels, the surfaces are made of a diffuse reflection material which is highly reflective to solar radiation, such as a nano high-reflection coating, and the surface of the blade B (312) adjacent to the blade C (313) and the surface of the blade D (314) adjacent to the blade C (313) are the front surfaces of the photovoltaic panels which are highly absorptive to solar radiation.
The air cavity (200) is filled with air, inert gas or vacuumized, and a high-efficiency moisture absorbent or getter is placed in the air cavity (200) to maintain the dryness in the air cavity (200) or maintain the vacuum degree in the air cavity (200).
The adjusting device (600) can adjust the rotation angle of the multifunctional shutter assembly (300) manually or electrically.
In summer sunshade conditions, see fig. 2, the multifunctional louver assembly is adjusted so that the blade D (314) is uppermost, at this time, the blades B (312) and D (314) reflect solar radiation to the outdoor environment in a diffuse reflection manner, thereby realizing a sunshade function, reducing the building cooling load, and avoiding light pollution to the outdoor environment.
In the summer lighting working condition, see fig. 3, the multifunctional louver component is adjusted to enable the blade A (311) to be at the uppermost position, at the moment, the blade A (311) blocks infrared radiation, only visible light is allowed to pass through, and the multifunctional louver component enters an indoor environment through diffuse reflection of the louver B (312) and the louver D (314), so that the purposes of natural lighting, glare avoidance and solar radiation heat gain reduction are achieved.
In the lighting working condition in winter, referring to fig. 4, the multifunctional shutter assembly is adjusted to enable the blade C (313) to be at the uppermost position, at the moment, the full-wavelength solar radiation can enter the indoor environment through the blade C (313), natural lighting requirements are met, and if the indoor natural lighting illuminance in winter is too high, the multifunctional shutter assembly can be adjusted to enable the blade B to be at the uppermost position, and glare is avoided. Under the working condition, the solar radiation absorbed by the shutter B (312) and the shutter D (314) is partially converted into electric energy, and the rest part is stored in the air cavity in a heat energy mode, so that the building heat load is reduced, and the comprehensive utilization rate of solar energy is improved.