TWM574338U - Solar energy window - Google Patents

Abstract

A solar window includes a laminate. The laminate includes a first substrate, a light reflecting film, and at least one solar wafer. The first substrate has a surface, and the surface has a light penetrating region and a mounting region surrounding the light penetrating region. The light reflecting film is disposed on the surface of the first substrate and is configured to reflect light to the first substrate and the second substrate. The at least one solar wafer is embedded in the light reflecting film and disposed in a mounting area of the surface of the first substrate and used to convert light into electricity. With the design of the light reflecting film, the novel solar window does not allow light to be diffused, and the phenomenon of light fogging is avoided, so that the window scenery can be clearly seen.

Description

Solar window

The present invention relates to a window, and more particularly to a solar window.

The use of solar energy has always been a very important project in the design of green buildings, especially in the metropolitan area. Since the side of the building of the metropolitan area is mainly made up of glass curtain walls, it has a large receiving area, so that the solar module is suspended on the glass curtain wall to contribute a considerable proportion of power generation. However, the way in which the solar modules are suspended can cause the scenery outside the window to be obscured without being favored.

Taiwan Patent Publication No. 414072 discloses a solar module. The solar module includes a substrate 1 and a plurality of solar wafers 2 disposed on at least one side 10 of the substrate 1. The substrate 1 includes a light diffusion layer 11 having a plurality of light diffusion particles 111, and a light guide layer 12 disposed on the light diffusion layer 11. When the outdoor light 20 enters the light diffusion layer 11 of the substrate 1, the light 20 is diffused by the light diffusion particles 111 in the light diffusion layer 11, and the diffused light portion travels to the light diffusion layer 11 The interface with the light guiding layer 12 is reflected and reflected back and forth in the light diffusing layer 11 and transmitted to the solar wafers 2, and finally collected in the solar wafers 2.

Although the solar module can be used as a window and does not cause the scenery outside the window to be shielded, the light 20 is diffused by the light-diffusing particles 111, causing the solar module to be split by light to cause photo-atomization. Therefore, it is impossible to clearly see the scenery outside the window.

Therefore, the object of the present invention is to provide a solar window that can clearly see the scenery outside the window.

Thus, the novel solar window comprises a laminate. The laminate includes a first substrate, a light reflecting film, and at least one solar wafer. The first substrate has a surface, and the surface has a light penetrating region and a mounting region surrounding the light penetrating region. The light reflecting film is disposed on the surface of the first substrate and is configured to reflect light to the first substrate. The at least one solar wafer is embedded in the light reflecting film and disposed in a mounting area of the surface of the first substrate and used to convert light into electricity.

The effect of the novel is that, by the design of the light reflecting film, the novel solar window does not cause the light to be diffused, and the phenomenon of light atomization caused by the diffusion of the splitting light is reduced, so that the window scenery can be clearly seen.

Referring to Figures 2 and 3, a first embodiment of the novel solar window comprises a laminate 3 and a specular retroreflective unit 4.

The laminated body 3 has four side faces 30 and includes a first substrate 31, a second substrate 32, a light reflecting film 33, a plurality of solar wafers 34, a circuit unit 35, and a thermal insulation unit 36.

The first substrate 31 is a light transmissive substrate such as a glass substrate or a plastic substrate. The light transmissive substrate is a planar substrate or a curved substrate. The planar substrate is, for example, a quadrilateral substrate. The curved substrate is, for example, an arcuate curved substrate. The first substrate 31 has a surface 311. The surface 311 has a light penetrating region 312 and a mounting region 313 surrounding the light penetrating region 312. The area of the light transmission region 312 is 50% or more of the area of the surface 311 of the first substrate 31. Preferably, the area of the light penetrating region 312 is 80% to 99% of the area of the surface 311 of the first substrate 31. In the first embodiment, the first substrate 31 is a flat glass substrate having a thickness of 5 mm, a length of 670 mm, and a width of 480 mm, and the area of the light transmissive region 312 is the surface of the first substrate 31. 91.2% of the area of 311.

The second substrate 32 is disposed apart from the first substrate 31. The second substrate 32 is a light transmissive substrate such as a glass substrate or a plastic substrate. The light transmissive substrate is a planar substrate or a curved substrate. The planar substrate is, for example, a quadrilateral substrate. The curved substrate is, for example, an arcuate curved substrate. In the first embodiment, the second substrate 32 is a flat glass substrate having a thickness of 5 mm, a length of 670 mm, and a width of 480 mm.

The light reflecting film 33 is located between the first substrate 31 and the second substrate 32 and connects the first substrate 31 and the second substrate 32. The light reflecting film 33 is for reflecting light therein to the first substrate 31 and the second substrate 32. The light reflecting film 33 includes an adhesive layer unit 331 that connects the first substrate 31 and the second substrate 32, and a plurality of light reflecting particles 332 distributed in the adhesive layer unit 331. The adhesive layer unit 331 includes at least one adhesive layer. The adhesive layer is, for example but not limited to, an ethylene-vinyl acetate copolymer (EVA) layer, a polyvinyl butyral (PVB) layer, and a polyurethane (PU). ), a polyimide (PI) layer, or a silicone resin layer. The light-reflecting particles 332 have a particle diameter ranging from 0.1 μm to 2.5 μm. The light reflecting particles 332 may be the same or different, and are, for example but not limited to, metal particles, metal composite particles, or alloy particles. The metal particles are, for example but not limited to, silver, aluminum, titanium, platinum, or nickel. The metal composite particles are, for example but not limited to, aluminum powder coated with silver on the surface. The alloy particles are for example but not limited to steel. In the first embodiment, the light reflecting film 33 has a thickness of 1.2 mm and includes a layer of an ethylene-vinyl acetate copolymer as the adhesive layer unit 331 and a plurality of layers distributed on the ethylene-vinyl acetate copolymer layer. The light reflecting particles 332 in the inner surface, and the light reflecting particles 332 are silver powder coated with silver on the surface, and the total amount of the light reflecting particles 33 is 1 kilogram, and the amount of the light reflecting particles 332 is 300 milligrams. The concentration of the light-reflecting particles 332 was 300 ppm.

The solar wafers 34 are embedded in the light reflecting film 33, and are disposed around the light penetrating region 312 of the surface 311 of the first substrate 31 and distributedly disposed in the mounting region 313 of the surface 311 of the first substrate 31. And used to convert light into electricity. The solar wafers 34 of the present invention are embedded in the light reflecting film 33 as compared with the solar cells 34 which are adhered to the side surface 30 of the laminated body 3 through the adhesive material, thereby avoiding the installation of the solar window. These solar wafers 34 are damaged by collision and can also reduce the problem of reflection loss of the interface during the process of light conduction to the solar wafers 34 due to the presence of the adhesive material, thereby improving power generation efficiency. The solar wafers 34 are, for example, polycrystalline silicon solar wafers, single crystal germanium solar wafers, or III-V solar wafers. In the first embodiment, the number of the solar wafers 34 is 14 and is a polycrystalline silicon solar wafer having a size of 155 mm × 13 mm and a power conversion efficiency of 17.5%. The distance between the long side of each solar wafer 34 and the periphery of the first substrate 31 is 5 mm. It should be noted that the number of the solar chips 34 is not limited to 14, but may be one, two, three, five, ten, etc., and may be adjusted according to the installation size of the window or the installation environment. It should be noted that the arrangement of the solar wafers 34 is not limited to the distribution around the light penetrating region 312, and may be disposed on the mounting region 313 and located on at least one side of the light penetrating region 312. In this case, the mounting area 313 is disposed on the same side (for example, the left side or the right side) of the light penetrating area 312, is disposed on the mounting area 313, and is located on both sides of the light penetrating area 312 (for example, The upper side and the lower side, or the left side and the right side, or the mounting area 313 are located on three sides (for example, the left side, the right side, and the lower side) of the light penetrating area 312.

The circuit unit 35 is used to electrically transfer the solar wafers 34, and includes a plurality of first metal strips 351 and two second metal strips 352. The first metal strips 351 are, for example, aluminum metal strips. Each strip 351 connects each two adjacent solar wafers 34 to form a series circuit. In the state of the series circuit, the second metal strips 352 are respectively connected to the first solar wafer 34 and the last solar wafer 34, and extend out of the laminated body 3.

The heat insulating unit 36 is disposed on the second substrate 32 and opposite to the light reflecting film 33. The heat insulating unit 36 is a heat insulating layer for reflecting or absorbing infrared light to lower the temperature of the room, or a light shielding layer for reducing light entering the room to lower the temperature of the room. The heat insulating layer includes, for example, a composite film of a transparent conductive layer and a polyethylene terephthalate layer. The light shielding layer is an electrochromic light shielding layer.

The specular light reflecting unit 4 is disposed on at least one side surface 30 of the laminated body 3 and is used to focus and reflect light in the laminated body 3 to the solar wafers 34. The specular light reflecting unit 4 is, for example, a concave lens. In the first embodiment, the specular light reflecting unit 4 is a specular light reflecting film and surrounds the four side faces 30 of the laminated body 3. In the first embodiment, the specular reflection film has a thickness of 20 μm.

Referring to Figure 4, a second embodiment of the novel solar window differs from the first embodiment in that the thermal insulation unit 36 is not provided in the second embodiment. In the second embodiment, the laminated body 3 of the solar window has a light transmittance of 45% and a haze of 4.9%, and the power generation efficiency of the solar window is about 2.6%.

The new solar window is suitable for installation on a building or a vehicle. The novel solar window is capable of efficiently converting light into electricity through the solar wafers 34 and supplying the electricity to an electrical product such as an electric lamp or an electrochromic light-shielding layer of the thermal insulation unit 36.

When the solar window is installed, the first substrate 31 of the solar window faces outward, and the second substrate 32 faces the room. When light 5 from the outside (for example, light irradiated by the sun or light reflected by the object) enters the light reflecting film 33 via the first substrate 31, a part of the light 5 penetrates the light reflecting film 33 and enters the first The two substrates 32 are reflected by the light reflecting particles 332 of the light reflecting film 33 and are again entered into the first substrate 31. The other portion of the light 5 is reflected back and forth in the first substrate 31 and the second substrate 32, and transmitted to the solar wafers 34, and finally collected in the solar wafers 34, and through the The solar wafer 34 is converted to electricity.

In summary, the solar energy window of the present invention is designed such that the light is not diffused, and the phenomenon of light fogging caused by the diffusion of the solar window due to diffusion is reduced, so that the solar window can be clearly seen. Going out to the window, it is indeed possible to achieve the purpose of this new type.

However, the above is only the embodiment of the present invention, and when it is not possible to limit the scope of the present invention, all the simple equivalent changes and modifications according to the scope of the patent application and the contents of the patent specification are still This new patent covers the scope.

3‧‧‧Layer

30‧‧‧ side

31‧‧‧First substrate

311‧‧‧ surface

312‧‧‧Light penetration zone

313‧‧‧Installation area

32‧‧‧second substrate

33‧‧‧Light reflective film

331‧‧‧adhesive layer unit

332‧‧‧Light Reflecting Particles

34‧‧‧Solar chips

35‧‧‧ circuit unit

351‧‧‧First metal strip

352‧‧‧Second metal strip

36‧‧‧Insulation unit

4‧‧‧Mirror Reflective Unit

5‧‧‧Light

6‧‧‧ Distance

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: FIG. 1 is a schematic diagram illustrating a prior art solar module; FIG. 2 is a 3 is a perspective view of the first embodiment; and FIG. 4 is a cross-sectional view of a second embodiment of the novel solar window.

Claims (11)

A solar window comprising: a laminate comprising a first substrate comprising a surface, the surface comprising a light penetrating region, and a mounting region surrounding the light penetrating region; a light reflecting film disposed thereon The surface of the first substrate is used to reflect light to the first substrate; and at least one solar wafer is embedded in the light reflecting film and disposed in a mounting area of the surface of the first substrate, and is used Convert this light into electricity. The solar window of claim 1, wherein the laminated body further comprises a second substrate disposed on the light reflecting film opposite to the first substrate. The solar window of claim 2, wherein the light reflecting film comprises an adhesive layer unit connecting the first substrate and the second substrate, and a plurality of light distributed in the adhesive layer unit Reflecting particles. The solar window of claim 3, wherein the adhesive layer unit comprises at least one adhesive layer, and the adhesive layer is selected from the group consisting of an ethylene-vinyl acetate copolymer layer, a polyvinyl butyral layer, and a polyurethane layer. , a polyimide layer, or a polyoxymethylene resin layer. The solar window of claim 2, wherein the laminate further comprises a thermal insulation unit disposed on the second substrate opposite to the light reflective film. The solar panel of claim 5, wherein the thermal insulation unit is one of a light shielding layer and a heat insulation layer. The solar window of claim 6, wherein the light shielding layer is an electrochromic light shielding layer. The solar window of claim 1, wherein an area of the light penetrating region is 50% or more of an area of the surface of the first substrate. The solar window of claim 8, wherein the area of the light penetrating region is from 80% to 99% of the area of the surface of the first substrate. The solar window of claim 2, wherein the first substrate and the second substrate are one of a planar substrate and a curved substrate. The solar window of claim 1, further comprising a specular light reflecting unit disposed on at least one side of the laminated body.