201023923 九、發明說明： 【發明所屬之技術領域】 " 本發明涉及一種空氣清潔裝置。 【先前技術】 目前，環境污染已成為一個不可忽視之問題。室内污 染物主要係各種揮發性之有機化合物，其中大部分為致癌 物。 傳統之空氣淨化器主要係採用過濾與吸附系統清除空 ©氣中之污染粒子以達到淨化目的。但是上述方法對環境中 存於之純氣態之有機污染物，如甲醛和苯等之淨化效果較 差。具體可參見Ashok Chaurushia等人於1997年2月6曰 申請，並於2003年8月 19日公告之美國專利 US6,607,573B1，標題為 Portable air pollution control apparatus —文0 因此，近年來開始採用臭氧法與活性碳法以進行空氣 淨化。臭氧具有很強之氧化性，易將空氣中之有機污染物 ®氧化，然而，過度之使用臭氧，易於氧化過程中生成硫酸 或硝酸，再次造成環境污染。活性碳法易受需淨化之環境 之位置、面積大小等影響，且活性碳之活性與溫度成正比。 因此，活性碳長期暴露於低溫環境下，易失去淨化效果。 有鑒於此，有必要提供一種清淨效率較高之空氣清潔 裝置。 【發明内容】 一種空氣清潔裝置，其包括：一個滾輪、一個光觸媒 201023923 層與一個光源。該滾輪包括一個本體以及設置於該本體上 * 之複數個葉片，該滚輪於空間中轉動以帶動空氣流動。該 光觸媒層塗佈於該複數個葉片上。該光源與該滚輪相對設 置，該光源發出之光照射至該光觸媒層。 與先前技術相比，該空氣清潔裝置之滾輪葉片上之光 觸媒層於光源發出之光照射下，發生光催化分解反應，將 空氣中之有機污染物分解成二氧化碳與水。滾輪可於空間 中轉動，可帶動週邊空氣流動，進而無需設置進風口與出 ®風口。同時，滚輪之葉片上均塗佈有光觸媒層，進而提高 空氣清淨效率。同時，該空氣清潔裝置可作為照明裝置。 【實施方式】 請參照圖1與圖2，為本發明第一實施例提供之空氣清 潔裝置100之結構示意圖。該空氣清潔裝置100包括一個 滾輪101與一個光源103。 該滾輪101包括一個本體1010以及設置於該本體1010 β上之複數個葉片1011。 該複數個葉片1011之延伸方向與該滚輪101之延伸方 向均為中心軸00’方向。該複數個葉片1011上塗佈有光觸 媒層102。優選地，該滾輪101之本體1010上亦塗佈有光 觸媒層102。 於本實施例中，該光觸媒層102為二氧化鈦，且該二 氧化鈦包括鉻（Cr)，釩（V)，碳（C)，氮（Ν)與硫（S)等元素中 至少一者。該光觸媒層102可於可見光之照射下進行光催 化分解。優選地，該滾輪101與一個驅動模組104相連。 201023923 該驅動模組104驅動該滾輪101於空間中沿中心軸OO’轉 * 動，從而帶動空氣流動。 該光源103包括一個基板1031以及設置於該基板1031 上之複數個發光元件1032。該光源103與該滾輪101相對 設置。 該發光元件1032可為發光二極體晶片、發光二極體或 發光二極體模組。於本實施例中，該發光元件1032為白光 發光二極體。該發光元件1032發出之光照射至該光觸媒層 ® 102。 該光觸媒層102於光源103發出之光之照射下，發生 光催化分解反應，從而將空氣中之有機污染分解為二氧化 碳與水，達到淨化空氣之目的。該空氣清潔裝置100無需 設置進風口與出風口，其可藉由該滾輪101之轉動，帶動 空氣流動，進而對一個預定範圍内之空氣進行淨化。同時， 該滚輪101之本體1010與該複數個葉片1011上均塗佈有 _光觸媒層102，從而增加了該光觸媒層102之面積，提高了 該空氣清潔裝置100之清淨效率。該空氣清潔裝置100既 可進行空氣清淨，且同時可作照明用。 請參見圖3,為本發明第二實施例提供之空氣清潔裝置 200之結構示意圖。該空氣清潔裝置200與第一實施例提供 之空氣清潔裝置100結構基本相同，該空氣清潔裝置200 包括一個滾輪201、一個光觸媒層202以及一個光源203。 該空氣清潔裝置200與第一實施例不同之處在於：該 空氣清潔裝置200之光源203包括一個紫外光發光二極體 201023923 • 2032。 ^ 於本實施例中，該空氣清潔裝置200進一步包括一個 透光板205。該透光板205設置於該光源203與該滚輪201 之間，且該透光板205與該紫外光發光二極體2032相對。 該透光板205中包括有螢光粉’該螢光粉可吸枚紫外光， 並將紫外光之波長轉換，將紫外光變為可見光。優選地， 該透光板205上具有複數個通孔2051 ° 該紫外光發光二極體2032發出之部分紫外光線藉由該 ®複數個通孔2051照射至該光觸媒層202 ’光觸媒層202於 紫外光發之照射下之光催化分解’從而將空氣中之有機污 染分解為二氧化碳與水，達到淨化空氣之目的。同時，該 紫外光發光二極體2032發出之部分紫外光線透過該透光板 205，透光板205中之螢光粉於紫外光之激發下’將該紫外 光進行波長轉換，並將紫外光轉換為可見光’該可見光可 用於清淨空氣並可用於照明。 φ 由於光觸媒層202於紫外光發之照射下之光催化分解 之速度比於可見光之照射下之光催化分解之速度要快。因 此，該空氣清潔裝置200之清淨效率較高。同時，該空氣 清潔裝置200藉由設置含有螢光粉之透光板205,可防止紫 外光對人體之影響。 可理解的是，該透光板205亦可為可移動設計°於將 該光源203作為照明裝置時，將該透光板205移動’使該 透光板205與該光源203之紫外光發光二極體2032相對設 置。當該空氣清潔裝置200僅用於清淨空氣，則將該透光 201023923 板205移除，以使該紫外光發光二極體2032發出之光線直 β 接照射至該光觸媒層202，以增強該空氣清潔裝置200之清 淨效率。 於本實施例中，該空氣清潔裝置200之光源中包括紫 外光發光二極體2032不限於一個，亦可為複數個。 綜上所述，本發明確已符合發明專利之要件，遂依法 提出專利申請。惟，以上所述者僅為本發明之較佳實施方 式，自不能以此限制本案之申請專利範圍。舉凡熟悉本案 ®技藝之人士援依本發明之精神所作之等效修飾或變化，皆 應涵蓋於以下申請專利範圍内。 【圖式簡單說明】 圖1係本發明第一實施例提供之空氣清潔裝置之結構 示意圖。 圖2係圖1中II之放大圖。 圖3係本發明第二實施例提供之空氣清潔裝置之結構201023923 IX. Description of the invention: [Technical field to which the invention pertains] " The present invention relates to an air cleaning device. [Prior Art] At present, environmental pollution has become a problem that cannot be ignored. Indoor pollutants are mainly volatile organic compounds, most of which are carcinogens. Conventional air purifiers mainly use filtration and adsorption systems to remove airborne particles from the gas for purification purposes. However, the above method has a poor purification effect on pure gaseous organic pollutants such as formaldehyde and benzene which are stored in the environment. See, for example, Ashok Chaurushia et al., filed on Feb. 6, 1997, and U.S. Patent No. 6,607,573, filed on Aug. 19, 2003, entitled "Portable air pollution control apparatus". Method and activated carbon method for air purification. Ozone is highly oxidizing and easily oxidizes the organic pollutants in the air. However, excessive use of ozone makes it easy to generate sulfuric acid or nitric acid during oxidation, which again causes environmental pollution. The activated carbon method is susceptible to the location and area of the environment to be purified, and the activity of the activated carbon is proportional to the temperature. Therefore, when activated carbon is exposed to a low temperature environment for a long time, it is easy to lose the purification effect. In view of this, it is necessary to provide a clean and efficient air cleaning device. SUMMARY OF THE INVENTION An air cleaning device includes a roller, a photocatalyst layer 201023923 and a light source. The roller includes a body and a plurality of blades disposed on the body, the roller rotating in the space to drive air flow. The photocatalyst layer is coated on the plurality of blades. The light source is disposed opposite the roller, and light emitted by the light source is irradiated to the photocatalyst layer. Compared with the prior art, the photocatalyst layer on the roller blades of the air cleaning device undergoes a photocatalytic decomposition reaction under the illumination of the light source to decompose the organic pollutants in the air into carbon dioxide and water. The rollers can be rotated in space to move the surrounding air, eliminating the need for air inlets and outlets. At the same time, the rollers of the roller are coated with a photocatalyst layer to improve the air purification efficiency. At the same time, the air cleaning device can be used as a lighting device. [Embodiment] Please refer to FIG. 1 and FIG. 2, which are schematic structural views of an air cleaning device 100 according to a first embodiment of the present invention. The air cleaning device 100 includes a roller 101 and a light source 103. The roller 101 includes a body 1010 and a plurality of blades 1011 disposed on the body 1010 β. The extending direction of the plurality of blades 1011 and the extending direction of the roller 101 are both in the direction of the central axis 00'. The plurality of blades 1011 are coated with a photocatalyst layer 102. Preferably, the body 1010 of the roller 101 is also coated with a photocatalyst layer 102. In the present embodiment, the photocatalyst layer 102 is titanium dioxide, and the titanium dioxide includes at least one of elements such as chromium (Cr), vanadium (V), carbon (C), nitrogen (strontium) and sulfur (S). The photocatalyst layer 102 can be photocatalyzed and decomposed under the irradiation of visible light. Preferably, the roller 101 is connected to a driving module 104. 201023923 The drive module 104 drives the roller 101 to rotate in the space along the central axis OO' to drive air flow. The light source 103 includes a substrate 1031 and a plurality of light emitting elements 1032 disposed on the substrate 1031. The light source 103 is disposed opposite the roller 101. The light emitting device 1032 can be a light emitting diode chip, a light emitting diode or a light emitting diode module. In the embodiment, the light emitting element 1032 is a white light emitting diode. Light emitted from the light-emitting element 1032 is irradiated to the photocatalyst layer ® 102. The photocatalyst layer 102 undergoes a photocatalytic decomposition reaction under the illumination of the light emitted from the light source 103, thereby decomposing the organic pollution in the air into carbon dioxide and water to purify the air. The air cleaning device 100 does not need to provide an air inlet and an air outlet, and the rotation of the roller 101 can drive the air to flow, thereby purifying the air within a predetermined range. At the same time, the body 1010 of the roller 101 and the plurality of blades 1011 are coated with a photocatalyst layer 102, thereby increasing the area of the photocatalyst layer 102 and improving the cleaning efficiency of the air cleaning device 100. The air cleaning device 100 can perform air cleaning and at the same time can be used for illumination. Referring to FIG. 3, a schematic structural view of an air cleaning device 200 according to a second embodiment of the present invention is shown. The air cleaning device 200 is substantially identical in construction to the air cleaning device 100 of the first embodiment. The air cleaning device 200 includes a roller 201, a photocatalyst layer 202, and a light source 203. The air cleaning device 200 differs from the first embodiment in that the light source 203 of the air cleaning device 200 includes an ultraviolet light emitting diode 201023923 • 2032. In the present embodiment, the air cleaning device 200 further includes a light transmissive plate 205. The light-transmitting plate 205 is disposed between the light source 203 and the roller 201, and the light-transmitting plate 205 is opposite to the ultraviolet light-emitting diode 2032. The light-transmitting plate 205 includes a fluorescent powder. The fluorescent powder absorbs ultraviolet light and converts the wavelength of the ultraviolet light to convert the ultraviolet light into visible light. Preferably, the transparent plate 205 has a plurality of through holes 2051 °. The ultraviolet light emitted by the ultraviolet light emitting diode 2032 is irradiated to the photocatalyst layer 202 by the plurality of through holes 2051. The photocatalyst layer 202 is ultraviolet. The photocatalytic decomposition under the illumination of light rays decomposes the organic pollution in the air into carbon dioxide and water to purify the air. At the same time, part of the ultraviolet light emitted by the ultraviolet light-emitting diode 2032 passes through the light-transmitting plate 205, and the fluorescent powder in the light-transmitting plate 205 is wavelength-converted by the ultraviolet light, and the ultraviolet light is converted. Converted to visible light' This visible light can be used to clean the air and can be used for illumination. φ The photocatalytic decomposition of the photocatalyst layer 202 under ultraviolet light is faster than the photocatalytic decomposition of visible light. Therefore, the air cleaning device 200 has a high cleaning efficiency. At the same time, the air cleaning device 200 can prevent the influence of ultraviolet light on the human body by providing the light-transmitting plate 205 containing the fluorescent powder. It can be understood that the light-transmitting plate 205 can also be a movable design. When the light source 203 is used as a lighting device, the light-transmitting plate 205 is moved to cause the light-transmitting plate 205 and the light source 203 to emit ultraviolet light. The pole bodies 2032 are oppositely disposed. When the air cleaning device 200 is used only for clean air, the light transmitting 201023923 plate 205 is removed, so that the light emitted by the ultraviolet light emitting diode 2032 is directly irradiated to the photocatalyst layer 202 to enhance the air. The cleaning efficiency of the cleaning device 200. In the present embodiment, the ultraviolet light emitting diodes 2032 included in the light source of the air cleaning device 200 are not limited to one, and may be plural. In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by those skilled in the art of the present invention in the spirit of the present invention are intended to be included in the scope of the following claims. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the structure of an air cleaning device according to a first embodiment of the present invention. Figure 2 is an enlarged view of II in Figure 1. 3 is a structure of an air cleaning device according to a second embodiment of the present invention;
【主要元件符號說明】 空氣清潔裝置 100、200 101 、 201 103 、 203 1010 1011 102、202 滾輪 光源 本體 葉片 光觸媒層 驅動模組 104 201023923 基板 1031 發光元件 1032 紫外光發光二極體 2032 透光板 205 通孔 2051[Main component symbol description] Air cleaning device 100, 200 101, 201 103, 203 1010 1011 102, 202 Roller light source body blade photocatalyst layer driving module 104 201023923 Substrate 1031 Light emitting element 1032 Ultraviolet light emitting diode 2032 Light transmitting plate 205 Through hole 2051
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