Daylighting body with anti-static and hydrophobic characteristics and daylighting tile composed of daylighting body

Abstract

The utility model discloses a daylighting body with anti-static and hydrophobic characteristics and a daylighting tile formed by the daylighting body, and relates to the technical field of building materials, the daylighting body comprises a daylighting body body, a transparent anti-static film is arranged outside the daylighting body body, the anti-static film is of a tile roof-shaped structure, the distance between tiles is 70-100 micrometers, and the distance between the tiles is 10-20 micrometers. And a plurality of micropores with the aperture of 5-15 microns are formed in each tile. The self-cleaning device has the characteristics of static electricity prevention and water drainage, and can realize long-acting and lasting self-cleaning, so that the use of chemical cleaning agents and the frequency of high-altitude cleaning operation are reduced, and the problems of environmental pollution and high-altitude potential safety hazards are avoided to a greater extent.

Description

Technical Field

[0001] The utility model relates to the technical field of building materials, in particular to a lighting body with antistatic and hydrophobic properties and a lighting tile composed of the lighting body. Background Art

[0002] Lighting tiles are also called transparent tiles, lighting panels, lighting strips, lighting roofs, and skylights, and are commonly found on rural roofs. The existing lighting tiles, whose lighting bodies are mostly made of transparent glass, are intended to bring outdoor sunlight into the house to achieve indoor lighting during the day. The inventor designed a lighting tile structure in 2022 (patent announcement number: CN219365174U), which is mainly composed of connecting plates, spherical lighting parts, fasteners, rubber pads, waterproof gaskets, frames, etc. The lighting tile uses a spherical lighting part made of glass (i.e., a lighting body) to bring outdoor sunlight into the room. It has the advantages of simple structure and low production cost, and solves the problems of traditional lighting tiles with limited light exposure range, poor thermal insulation, and poor privacy.

[0003] However, in actual application, due to the influence of the external use environment, the above-mentioned lighting tiles cannot fully exert their due lighting effects, which is mainly manifested in:

[0004] (1) Due to the high resistivity of the glass surface, static electricity will be generated in a dry environment (especially in an extremely dry environment), which will absorb dust and affect the light transmittance of the glass surface. If it is not cleaned in time, the lighting performance of the lighting tile will be significantly reduced.

[0005] (2) The wetting angle (i.e. contact angle) of ordinary glass is usually 30°~40°, and its hydrophilicity is between super-hydrophilic and super-hydrophobic. Therefore, water stains are prone to appear in a humid environment (especially after rain), which will also affect the light transmittance of the glass surface, resulting in a significant decrease in the lighting performance of the skylight tile.

[0006] In order to ensure the lighting effect of the skylight tiles, people usually use chemical reagents to clean the dust and stains on the skylights, and the cleaning frequency is closely related to the changes in the external environment, especially in the rainy season, the cleaning frequency will increase significantly. However, this cleaning method will not only cause environmental pollution due to the use of chemical reagents, but also frequent high-altitude cleaning operations will also have certain safety hazards.

[0007] Therefore, it is necessary to make further improvements to the structure of the lighting tiles to ensure their lighting performance. Utility Model Content

[0008] In view of the above-mentioned deficiencies in the prior art, the utility model provides a daylighting body with anti-static and hydrophobic properties and a daylighting tile composed of the daylighting body.

[0009] The technical solution adopted by the utility model is as follows:

[0010] A light collecting body with antistatic and hydrophobic properties comprises a light collecting body body, the outside of which is provided with a transparent antistatic film, the antistatic film being a tile roof-like structure, wherein the spacing between tiles is 70-100 microns, and a single tile is provided with a number of micropores with an aperture of 5-15 microns.

[0011] Furthermore, the tiles are arranged at an inclination angle of 15°-30° on the vertical plane.

[0012] Furthermore, the length and width of a single tile are 50-150 microns and 50-70 microns respectively.

[0013] Furthermore, the thickness of a single tile is 1-2 microns.

[0014] Preferably, the antistatic film is made of any one of indium tin oxide, aluminum zinc oxide, and gallium zinc oxide.

[0015] In addition, the utility model also provides a lighting tile whose structure includes the above-mentioned lighting body.

[0016] The design principle of the utility model is:

[0017] 1. A transparent anti-static film is set on the lighting surface of the lighting tile (i.e. the outside of the lighting body). Since the resistivity of the anti-static film is small, it can be regarded as an equipotential body, so there is no problem of uneven charge distribution, which makes the lighting surface of the lighting tile have anti-static properties and avoids dust absorption.

[0018] 2. The anti-static film is designed as a porous structure like a tile roof, so that the light-collecting body of the light-collecting tile has hydrophobic properties. The main reason is that this structure reduces the mutual contact between the tile and the water molecules, and the surface energy is very low, making it easier for water droplets to form beads with high contact angles (greater than 90°) on the glass surface, thereby achieving a hydrophobic effect.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] (1) To address the problem of electrostatic dust absorption, the utility model provides a transparent anti-static film on the outside of the light-collecting body, which enables the light-collecting body to have anti-static properties without affecting the light transmittance. In a dry air environment, it is not easy to absorb dust, thus ensuring the lighting performance of the light-collecting tile.

[0021] (2) To address the problem of water stains, the antistatic film in the present invention is a tile roof structure with a spacing of 70-100 microns between tiles and a number of micropores with a pore size of 5-15 microns on a single tile. These areas are prone to adsorbing air molecules, so that in a humid environment, the contact surface between water molecules and the light-collecting body is no longer a solid-liquid interface, but a solid-liquid-gas interface. Therefore, the light-collecting body has a hydrophobic property.

[0022] And on the basis of the above, the tiles in the transparent antistatic film are arranged at an inclination angle of 15°-30° on the vertical plane, similar to the lotus leaves expelling water droplets. The utility model can prompt the spherical water droplets to flow downward under the action of gravity, and the dust is taken away as the water droplets flow away, thereby better achieving the purpose of self-cleaning of the light-collecting body, better realizing the hydrophobic effect of the light-collecting body, and ensuring the lighting performance of the light-collecting tiles.

[0023] (3) The skylight tiles designed in the present invention have anti-static and hydrophobic properties and can achieve long-lasting self-cleaning, thereby reducing the use of chemical detergents and the frequency of high-altitude cleaning operations, and to a large extent avoiding environmental pollution problems and safety hazards caused by high-altitude operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of Example 1 of the present utility model.

[0025] Figure 2 This is a schematic diagram of the structure of a single tile in Example 1 of the present utility model.

[0026] Figure 3 This is a cross-sectional schematic diagram of the tile in Example 1 of the present utility model. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with the accompanying drawings and embodiments. The present invention includes but is not limited to the following embodiments.

[0028] Example 1

[0029] This embodiment provides a light-collecting body structure on a light-collecting tile, which has anti-static and hydrophobic properties, and effectively ensures the lighting performance of the light-collecting tile while reducing the use of chemical cleaning agents and the frequency of high-altitude cleaning operations. Figure 1-3As shown, this embodiment uses DC magnetron sputtering technology + mask plate to deposit a layer of transparent antistatic film 2 on the outside of the light-collecting body 1, wherein, during the magnetron sputtering process, the antistatic film can be deposited layer by layer by using the mask plate to block, thereby presenting a tile roof-like structure, and in the tile roof-like structure, the spacing between tiles is 70-100 microns, and a single tile has a number of micropores with an aperture of 5-15 microns (the length and width of a single tile are 50-150 microns and 50-70 microns, respectively, and the thickness is 1-2 microns), and the tiles are arranged at an inclination angle of 15°-30° on the vertical plane.

[0030] By adopting the above scheme, on the one hand, the transparent antistatic film makes the light-collecting body have antistatic characteristics without affecting the transmittance. The antistatic film in this embodiment is made of indium tin oxide (ITO). Indium tin oxide is an N-type oxide semiconductor. The resistivity of its film is 10Ω·m-300Ω·m, and the transmittance is above 90%, with excellent resistivity and transmittance characteristics. On the other hand, this embodiment can prevent water molecules from penetrating and adhering to the surface of the light-collecting body, and the spacing between tiles and the micropores on a single tile can easily adsorb air molecules, so that in a humid environment, the contact surface between water molecules and the light-collecting body is no longer a solid-liquid interface, but a solid-liquid-gas interface, so the light-collecting body also has a hydrophobic property. The tiles are arranged at an inclination angle of 15°-30° on the vertical plane, which can promote the bead-shaped water droplets to flow downward under the action of gravity. The water droplets can take away dust while flowing, so that the light-collecting body can achieve the purpose of long-lasting self-cleaning while having antistatic and hydrophobic properties.

[0031] Example 2

[0032] The difference from the first embodiment is that in the present embodiment, the antistatic film 2 is made of aluminum zinc oxide (AZO).

[0033] Example 3

[0034] The difference from the first embodiment is that in this embodiment, the antistatic film 2 is made of gallium zinc oxide (GZO).

[0035] Example 4

[0036] This embodiment provides a skylight tile, the structure of which adopts the skylight body described in Embodiment 1, has anti-static and hydrophobic properties, and can achieve self-cleaning. In addition to the skylight body described in Embodiment 1, in this embodiment, the composition structure of the rest of the skylight tile can be the same as the composition structure of the traditional skylight tile, and can also be the same as the structure described in Patent Announcement No. CN220521764U. Therefore, this embodiment does not further elaborate on the specific structure and working principle of the skylight tile.

[0037] The above embodiments are only preferred implementation modes of the present utility model and should not be used to limit the protection scope of the present utility model. Any changes or modifications that are made to the main design concept and spirit of the present utility model and have no substantive significance, and the technical problems they solve are still consistent with the present utility model, should be included in the protection scope of the present utility model.

Claims

1. A light collecting body with antistatic and hydrophobic properties, comprising a light collecting body body (1), characterized in that: The light collecting body (1) is provided with a transparent antistatic film (2) on the outside. The antistatic film (2) is a tile roof-like structure, wherein the spacing between tiles is 70-100 microns, and a single tile is provided with a plurality of micropores with an aperture of 5-15 microns.

2. The light collecting body with antistatic and hydrophobic properties according to claim 1, characterized in that: The tiles are arranged at an inclination angle of 15°-30° on a vertical plane.

3. The light collecting body with antistatic and hydrophobic properties according to claim 2, characterized in that: The length and width of a single tile are 50-150 microns and 50-70 microns respectively.

4. The light collecting body with antistatic and hydrophobic properties according to claim 3, characterized in that: The thickness of a single tile is 1-2 microns.

5. A light-collecting body with antistatic and hydrophobic properties according to any one of claims 1 to 4, characterized in that: The material of the antistatic film (2) is any one of indium tin oxide, aluminum zinc oxide, and gallium zinc oxide.

6. A lighting tile, characterized in that: The invention comprises the light-collecting body as described in any one of claims 1 to 5.

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