200837483 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種分光組件，特別關於一種色輪組 件0 _ 【先前技術】 隨著科技的進步，平面顯示產品的大型化障礙已逐漸 被克服’大尺寸平面顯示產品也逐漸走入家用市場中，其 _ 中又因投影技術能提供更大尺寸及更具震撼效果的視覺 體驗，而曰漸受到使用者青睞。在眾多的投影裝置中又以 數位光源處理器（Digital Light Processing，DLP )最受矚 目’因其擁有亮度高、反應時間短、無雜訊以及輕薄短小 等數種優點，而成為投影裝置中的主流技術。 DLP式投影系統係採用數位控制，同時利用反射光原 理進行作動。將光源集光並經由透鏡聚焦之後，穿過紅綠 藍三色濾光片的彩色濾光片，投射至數位微鏡元件（Digital # Micro-mirror Device，DMD)上。在此技術中，係藉由數 位微鏡元件來取代傳統液晶投影系統中，負責呈現影像的 液晶顯示面板。數位微鏡元件上具有許多微小的可動鏡 片’利用驅動控制可動鏡片之傾斜角度與偏轉時間， ‘再藉由切換光的反射方向而經由投影鏡頭投射成像。 - 請參照圖1A及圖1B所示，係為習知技術之DLP式 投影機中，用以分光之一色輪組件1之一側視剖面圖。色 輪組件1主要係包含一馬達11、一色輪12、一蓋片13以 6 200837483 及一疋位件14。其中，馬達n設置於定值件上，蓋片 13與色輪12係固定於馬達^上^馬達^主要由一轴 心蓋in、一馬達本體112計馬達殼體113所組成，馬 達本體112具有一轉軸1121軸設於軸心蓋ιη。其中，蓋 片13可$又置在色輪12之上（如圖1A所示）或設置在馬達 ‘ 11與色輪12之間（如圖1B所示）。200837483 IX. Description of the Invention: [Technical Field] The present invention relates to a beam splitting assembly, and more particularly to a color wheel assembly 0 _ [Prior Art] With advances in technology, large-scale obstacles to flat display products have been gradually overcome 'Large-size flat-panel display products are also gradually entering the home market, and _ is gradually favored by users because of its ability to provide a larger and more powerful visual experience. Among the many projection devices, digital light processing (DLP) is the most popular. Because of its high brightness, short response time, no noise, and light and short, it has become a projection device. Mainstream technology. The DLP projection system uses digital control while operating with reflected light principles. After the light source is collected and focused by a lens, the color filter passing through the red, green and blue color filter is projected onto a Digital #Micro-mirror Device (DMD). In this technique, a liquid crystal display panel responsible for rendering an image is replaced by a digital micromirror device in a conventional liquid crystal projection system. The digital micromirror element has a plurality of tiny movable mirrors </ RTI> which are used to control the tilt angle and the yaw time of the movable lens, and ‘the projection image is projected through the projection lens by switching the direction of light reflection. - Referring to Figures 1A and 1B, a side cross-sectional view of one of the color wheel assemblies 1 for splitting the light in a DLP projector of the prior art. The color wheel assembly 1 mainly comprises a motor 11, a color wheel 12, a cover sheet 13 and 6 200837483 and a clamping member 14. The motor n is disposed on the constant value member, and the cover sheet 13 and the color wheel 12 are fixed on the motor. The motor is mainly composed of a shaft cover in, a motor body 112, and a motor housing 113. The motor body 112 A shaft 1121 shaft is disposed on the shaft cover ιη. Here, the cover sheet 13 can be placed on the color wheel 12 (as shown in Fig. 1A) or between the motor '11 and the color wheel 12 (as shown in Fig. 1B).
色輪12通常係由一片玻璃板鍍膜而成或由複數片玻 璃板組成，以形成一由紅、綠、藍之三色渡光片所形成的 環形渡光片’亦可為—以紅、綠、藍三色之多個區塊所形 成之環形遽光片，或亦可為—以紅、H色加上白色 透明區塊的多個區塊所形成之環形濾光片。 承上寿】用上述方式所製成之色輪組件裂置於投影寿 =中時，於使用過程中，容易因色輪組件高速旋轉而產4 N溫’再加上投影系統具有殼體，其散熱孔又小，在沒孝 外力的幫助下，熱能不易由散熱孔散逸，故易導致投影秀 ，内色輪組件或其他電子S件之溫度不易降低，進而⑸ 色輪組件或其料子元件料毁_及㈣成本的增加: & A有t於此⑯何提供—種不易毁壞且具有散熱功能; 色輪組件’實為現今的—大課題。 [發明内容】 日上34課題，本發明之目的為提供—種不易鍍壞 ，、有政熱功能之色輪組件。 緣是，為if V ;+、η ^ 迷目的，本發明係揭露一種色輪組件， 7 200837483 包含一馬達、一墊片以及一色輪。墊片係設置於馬達之一 表面上，色輪係設置於墊片。其中，墊片係具有複數結合 部’色輪係具有複數遽光片^滤光片係分別設置於結合 部，且各濾光片係與馬達之表面呈一角度。 - 另外，為達上述目的，本發明係揭露一種色輪組件， . 包含一馬達以及一色輪，馬達係具有一表面，色輪係設置 於表面上且其係具有複數濾光片以及一轂部，濾光片係環 .設於轂部，且各濾光片係與表面呈一角度。 φ 承上所述，依據本發明之色輪組件，因色輪之濾光片 與馬達之表面間呈一夾角，使得色輪轉動時，濾光片可帶 動週遭的空氣流動，成為類似風扇的色輪。如此一來，熱 能更容易經由空氣對流的方式來消散，與習知技術相較， 本發明之色輪組件可協助空氣流動，因此可避免色輪組件 或投影系統内的其他電子元件因溫度過高而造成毀壞的 情形發生。 ⑩ 【實施方式】 以下將參照相關圖式，說明依本發明較佳，實施例之色 輪組件。 首先，請參照圖2所示，係為本發明較佳實施例之色 "輪組件22應用於投影系統2之一示意圖，本實施例中， 胃投影系統2係以一 DLP式投影系統為例。投影系統2包含 一光源21、一色輪組件22、一投影透鏡23、一數位微鏡 元件24以及一投影鏡頭25。 200837483 承上，光源21係設置於一燈罩211内，而光源21係 發出一光線。色輪組件22係設置於數位微鏡元件24之一 側。藉由投影透鏡23中之一第一透鏡231將光線聚焦， 聚焦後之光線再通過具有色輪223之色輪組件22將光線 - 分為紅、藍、綠等顏色，再經由投影透鏡23中之一第二 - 透鏡232將光線發散射入數位微鏡元件24上。數位微鏡 元件24上的每一晝素之記憶體（圖中未示）會紀錄每一晝素 的訊號數位值，並將訊號傳送給驅動電極(圖中未示）來產 φ 生微小反射鏡241的正負角度偏轉與控制偏轉時間，利用 數位微鏡元件24上反射鏡241之鏡面的偏轉，可使入射 光線產生不同角度的反射偏折，所產生之反射光線經由投 影鏡頭25投影至一螢幕S上成像。 接著請參照圖3所示，係為上述較佳實施例之色輪組 件22之一結構示意圖。 色輪組件22係包含一馬達221、一墊片222以及一色 輪223。其中，色輪組件22係應用於DLP式投影系統2 • 中光線之分光。 馬達221係具有一本體2211及一殼體2212，其中， 馬達221之本體2211主要係由一轉軸、一磁鐵圈、一矽 鋼片以及一線圈所組成。當線圈通電時，矽鋼片係產生磁 力以及磁場，且藉由通電電流的正負與強度讓磁場發生有 _序的變化，亦即為一旋轉磁場，使得磁鐵圈與旋轉磁場作 用，進而帶動轉轴轉動。The color wheel 12 is usually formed by coating a piece of glass plate or consisting of a plurality of glass plates to form a circular light-passing sheet formed by a red, green and blue light-emitting sheet. The annular calender formed by a plurality of blocks of green and blue colors may also be an annular filter formed by a plurality of blocks of red, H and white transparent blocks. Chengshou] When the color wheel assembly made by the above method is placed in the projection life = medium, it is easy to produce 4 N temperature due to the high speed rotation of the color wheel assembly during use, and the projection system has a housing. The heat dissipation hole is small, and without the help of the external force, the heat energy is not easily dissipated by the heat dissipation hole, so it is easy to cause the projection show, the temperature of the inner color wheel assembly or other electronic S parts is not easily lowered, and further (5) the color wheel assembly or its material component Material destruction _ and (4) cost increase: & A has t here to provide what is not easy to destroy and has heat dissipation; color wheel assembly 'actually today' - a big subject. SUMMARY OF THE INVENTION The object of the present invention is to provide a color wheel assembly that is not easily plated and has a political heat function. The reason is that, for if V; +, η ^, the invention discloses a color wheel assembly, and 7 200837483 comprises a motor, a gasket and a color wheel. The gasket is disposed on one surface of the motor, and the color wheel is disposed on the gasket. Wherein, the spacer has a plurality of joint portions. The color wheel train has a plurality of light-collecting sheets. The filter sheets are respectively disposed at the joint portion, and each of the filter sheets is at an angle to the surface of the motor. In addition, in order to achieve the above object, the present invention discloses a color wheel assembly, comprising a motor and a color wheel, the motor having a surface, the color wheel system being disposed on the surface and having a plurality of filters and a hub The filter is looped. It is disposed at the hub, and each filter is at an angle to the surface. According to the invention, the color wheel assembly according to the present invention has an angle between the filter of the color wheel and the surface of the motor, so that when the color wheel rotates, the filter can drive the surrounding air to flow and become a fan-like. Color wheel. As a result, the thermal energy is more easily dissipated via air convection. Compared with the prior art, the color wheel assembly of the present invention can assist the air flow, thereby preventing the temperature of the color wheel assembly or other electronic components in the projection system from being overheated. High and causing damage. [Embodiment] Hereinafter, a color wheel assembly according to a preferred embodiment of the present invention will be described with reference to the related drawings. First, please refer to FIG. 2, which is a schematic diagram of a color wheel assembly 22 applied to a projection system 2 in the preferred embodiment of the present invention. In this embodiment, the stomach projection system 2 is a DLP projection system. example. The projection system 2 includes a light source 21, a color wheel assembly 22, a projection lens 23, a digital micromirror device 24, and a projection lens 25. 200837483 In the above, the light source 21 is disposed in a light cover 211, and the light source 21 emits a light. The color wheel assembly 22 is disposed on one side of the digital micromirror device 24. The light is focused by one of the first lenses 231 of the projection lens 23, and the focused light is further divided into red, blue, green, etc. by the color wheel assembly 22 having the color wheel 223, and then passed through the projection lens 23. One of the second - lenses 232 scatters light into the digital micromirror element 24. Each pixel memory (not shown) on the digital micromirror device 24 records the signal value of each pixel and transmits the signal to the driving electrode (not shown) to produce a tiny reflection. The positive and negative angle deflection of the mirror 241 and the control of the deflection time, by the deflection of the mirror surface of the mirror 241 on the digital micromirror device 24, the incident light can be deflected at different angles, and the generated reflected light is projected to the projector lens 25 through the projection lens 25. Imaging on the screen S. Next, please refer to FIG. 3, which is a schematic structural view of one of the color wheel assemblies 22 of the above preferred embodiment. The color wheel assembly 22 includes a motor 221, a spacer 222, and a color wheel 223. Among them, the color wheel assembly 22 is applied to the DLP type projection system 2 • the light splitting. The motor 221 has a main body 2211 and a casing 2212. The main body 2211 of the motor 221 is mainly composed of a rotating shaft, a magnet ring, a steel sheet and a coil. When the coil is energized, the silicon steel sheet generates magnetic force and magnetic field, and the positive and negative and the intensity of the energizing current cause a change in the magnetic field, that is, a rotating magnetic field, so that the magnet ring acts on the rotating magnetic field, thereby driving the rotating shaft. Turn.
請同時參照圖3、圖4A及圖4B所示，其中，圖4A 200837483 係為圖3中墊片222與色輪223之一分解示意圖，圖46 係為圖4A之一立體結構示意圖。墊片222係設置於馬達 221之一表面上，例如為黏設在殼體2212之表面2213上。 其中，墊片222具有複數結合部2221-2223，其係可位於 • 墊片222之表面上。此外，墊片可為一環形、圓形或具有 - 一凸部之圓形墊片，於本實施例中，墊片222係呈一階梯 狀之環形墊片，其中，各結合部2221-2223中不同位置之 第一高度hi與第二高度h2之高度並不相同。另外，墊片 _ 222的材質係不受限制，例如可以是玻璃、金屬（例如是 銅）、陶瓷或塑膠等等。 色輪223係設置於墊片222,例如為黏設在墊片222 之一表面，以隨著馬達221之轉軸轉動而帶動墊片222及 色輪223旋轉。 · 其中，色輪223係具有複數濾光片2231-2233，上述 濾光片2231-2233可為複數塑膠片、複數片玻璃板或為複 數片玻璃板鍍膜而成，且其係分別呈一扇形、一扇葉狀、 ❿ 或具有傾斜角度之扇形（圖中係以扇形為例），並相互倂設 呈一圓形或環形（圖中係以環形為例），以環設於墊片 222。其中，濾光片2231-2233與馬達221鄰設之表面2213 係成一夾角Θ。 另外，濾光片2231-2233係可摻雜不同顏色之色料， "例如：濾光片2231-2233係分別摻雜有紅色色料之紅色濾 光片2231、摻雜有綠色色料之綠色濾光片2232以及摻雜 有藍色色料藍色濾光片2233。當然，濾光片2231-2233也 200837483 3以是以紅、綠、藍三色之多個區塊所形成之扇形滤光片 2231-2233 ’或亦可為一以紅、綠、藍三色加上透明區塊的 多個區塊所形成之濾光片2231-2233。 此外’濾光片2231-2233之一表面上可具有複數濾光 - 膜以形成紅色濾光膜、綠色濾光膜及藍色濾光膜。其中， _ 渡光膜可為不同顏色之顏料膜。或者’渡光膜也可為一彩 色熱固膠膜或一鍍膜（sputtered film )，而彩色熱固膠膜之 材料係可為乙烯乙烯基醋酸鹽（Ethylene Vinyi Acetate， 響 EVA)之化合物摻雜不同的色料以形成之一彩色的膠膜， 使得各濾光片2231-2233之表面具有不同顏色。另外，濾 光片2231-2233之色料或濾光膜之顏色並不限於紅、綠、 藍，任何可作為分光顏色基礎之色彩，皆為本實施例之範 疇。而且，若上述濾光片2231-2233為複數塑膠片，則其 材質可為聚石炭酸脂（polycarbonate, PC)、聚曱基丙基酸甲 酯（polymethyl methacrylate，PMMA)或玻璃纖維強化塑 膠（glass reinforced plastic，GPR 或 fiber reinforced plastic， • FRP)等。 另外，上述各色濾光片2231-2233與墊片222之結合 部2221-2223係可以黏合、熱熔接、嵌合或卡合方式結合， 且色輪223與墊片222係可利用射出成型方式來一同形 -成。 * 請參照圖5A及圖5B所示，其中，圖5A係為本發明 另一較佳實施例之色輪組件22A中墊片222A與色輪223A 之一結構分解圖，圖5B係為圖5A之一立體結構示意圖。 11 200837483 其中，墊片222A係為一圓形塾片，色輪223A中之複數滤 光片2231A-2233A係呈一扇葉狀，且其係相互倂設奚/環 形。於本實施例中，色輪組件22A即為先前實施例所述之 色輪組件22，其功能、結構及設置關係已於先前實施例中 - 所敛述’在此不再費述。 • 請參照圖6A及圖6B所示，其中，圖6A係為本發明 又一較佳實施例之色輪組件22Β之一結構示意圖，圖6Β 係為圖6Α中墊片222Β與色輪223Β之一結構分解圖。於 馨 本實施例中，墊片222Β之結合部2221Β-2223Β係位於墊 片222Β之外周緣’以形成具有複數溝槽之圓形墊片。色 輪223Β中之複數濾光片2231Β-2233Β係具有一傾斜角度 之扇形’且其係相互倂設呈一環形。除此之外，本實施例 之色輪組件22Β即為較佳實施例所述之色輪組件22,其功 能、結構及其設置關係已於較佳實施例中所敘述，在此不 再贅述。< 另外，於本實施例中，色輪組件22Β更可包含一定位 • 件224，馬達221係軸設於定位件224上。 再請參照圖7Α及圖7Β所示，其中，圖7Α係為本發 明再一較佳實施例之色輪組件22C中色輪223C之濾光片 2231C-2233C與轂部2234的一結構示意圖，圖7Β係為圖 ^ 7Α之色輪組件22C之一結構示意圖。於本實施例中，色 ， 輪223C與上述實施例中之色輪223Α、2ΜΒ不同之處在 於，色輪223C具有複數濾光片2231C-2233C及〜穀部 2234，濾光片2231〇2233C係呈一扇葉狀，且濾光片 12 200837483 2231C-2233C係環設於轂部2234。其中，色輪223C係不 具有墊片，色輪223C係直接與馬達221結合。如圖7B所 示，濾光片2231C-2233C係與馬達221之，表面2213呈 一角度。 - 综上所述，依據本發明之色輪組件，因色輪之濾光片 . 與馬達之表面間呈一夾角，使得色輪轉動日奢，濾光片可帶 動週遭的空氣流動，成為類似風扇的色輪。如此一來，熱 能更容易經由空氣對流的方式來消散，與f知技術相較， φ 本發明之色輪組件可協助空氣流動，因此町避免色輪組件 或投影系統内的其他電子元件因溫度過高而造成毁壞的 情形發生。 以上所述僅為舉例性，而非為限制性者。任何未脫 本發明之精神與範疇，而對其進行之等效修改或變更，均 應包含於後附之申請專利範圍中。 二 【圖式簡單說明】 圖1A為習知一種色輪組件之一侧視剖面圖； 圖1B為習知另一種色輪組件之一側视剖面圖； 圖2為依據本發明較佳實施例之一種色輪組 投影系統之一示意圖； w用於 一 =3為依據本發明較佳實施例之-種色輪組件之一結 圖4A為依據本發明較佳 片與色輪之一分解示意圖·， 實施例之一種色輪組件中塾 13 200837483 圖4B為依據本發明較佳實施例之一種色輪組件中墊 片與色輪之一立體結構示意圖； 圖5A為依據本發明較佳實施例之另一種色輪組件中 墊片與色輪之一分解示意圖； . 圖5B為依據本發明較佳實施例之另一種色輪組件中 _ 墊片與色輪之一立體結構示意圖； 圖6A為依據本發明又一較佳實施例之一種色輪組件 之一結構不意圖； 圖6B為依據本發明又一較佳實施例之一種色輪組件 中墊片與色輪之一分解示意圖； 圖7A為依據本發明再一較佳實施例之一種色輪組件 中濾光片與轂部之一結構示意圖；以及 圖7B為依據本發明再一較佳實施例之一種色輪組件 之一結構示意圖。 元件符號說明： φ 1 :色輪組件 11 :馬達 111 :軸心蓋 112 :馬達本體 - 1121 :轉轴 ‘ 113 :馬達殼體 12 :色輪 13 :蓋片 14 200837483 14 :定位件 2 :投影系統 21 :光源 211 :燈罩 . 22、22A、22B、22C :色輪組件 221 :馬達 2211 :本體 2212 :殼體 2213 :表面 222、 222A、222B :墊片 2221-2223、2221B-2223B :結合部 223、 223A、223B、223C :色輪 2231-2233、2231B-2233B、2231C-2233C :滤光片 2234 :轂部 224 :定位件 23 :投影透鏡 • 231 :第一透鏡 232 :第二透鏡 24 :數位微鏡元件 241 :反射鏡 胃 25 ··投影鏡頭 -S :螢幕 hi、h2 :高度 (9 :角度 15Referring to FIG. 3, FIG. 4A and FIG. 4B, FIG. 4A is a schematic exploded view of the spacer 222 and the color wheel 223 of FIG. 3, and FIG. 46 is a schematic perspective view of FIG. The spacer 222 is disposed on one surface of the motor 221, for example, on the surface 2213 of the housing 2212. Wherein, the spacer 222 has a plurality of bonding portions 2221-2223 which may be located on the surface of the spacer 222. In addition, the gasket may be a circular, circular or circular gasket having a convex portion. In the embodiment, the gasket 222 is a stepped annular gasket, wherein each joint portion 2221-2223 The first height hi of the different positions in the middle is not the same as the height of the second height h2. Further, the material of the gasket _ 222 is not limited, and may be, for example, glass, metal (for example, copper), ceramic or plastic, or the like. The color wheel 223 is disposed on the spacer 222, for example, adhered to one surface of the spacer 222 to rotate the spacer 222 and the color wheel 223 as the shaft of the motor 221 rotates. The color wheel 223 has a plurality of filters 2231-2233, and the filter 2231-2233 may be a plurality of plastic sheets, a plurality of glass sheets or a plurality of glass sheets, and the strips are respectively shaped. a leaf shape, a ❿ or a fan shape having an inclined angle (in the figure, a fan shape is taken as an example), and is arranged in a circular shape or a ring shape (in the figure, a ring shape is taken as an example) to be ring-shaped on the gasket 222. . The filter 2231-2233 is formed at an angle Θ with the surface 2213 adjacent to the motor 221 . In addition, the filters 2231-2233 can be doped with different color pigments, " for example: the filters 2231-2233 are red filters 2231 doped with red colorants, respectively, doped with green colorants The green filter 2232 is doped with a blue color blue filter 2233. Of course, the filters 2231-2233 and 200837483 3 are fan-shaped filters 2231-2233' formed by a plurality of blocks of red, green and blue, or may be red, green and blue. A filter 2231-2233 formed by a plurality of blocks of the transparent block is added. Further, one of the filters 2231-2233 may have a plurality of filters on the surface to form a red filter film, a green filter film, and a blue filter film. Among them, the _ light film can be a pigment film of different colors. Or the 'transmission film can also be a color thermosetting film or a sputtered film, and the color thermosetting film material can be doped with ethylene vinyl acetate (Ethylene Vinyi Acetate, EVA) compound. Different colorants are used to form a colored film such that the surfaces of each of the filters 2231-2233 have different colors. Further, the color of the coloring material or the filter film of the filters 2231-2233 is not limited to red, green, and blue, and any color which can be used as the basis of the spectral color is a domain of the present embodiment. Moreover, if the filter 2231-2233 is a plurality of plastic sheets, the material may be polycarbonate (PC), polymethyl methacrylate (PMMA) or glass fiber reinforced plastic (glass). Reinforced plastic, GPR or fiber reinforced plastic, • FRP). In addition, the bonding portions 2221-2223 of the color filters 2231-2233 and the spacer 222 can be bonded, thermally welded, fitted or snap-fitted, and the color wheel 223 and the spacer 222 can be formed by injection molding. Together with the form - into. Please refer to FIG. 5A and FIG. 5B , wherein FIG. 5A is a structural exploded view of one of the spacer 222A and the color wheel 223A of the color wheel assembly 22A according to another preferred embodiment of the present invention, and FIG. 5B is FIG. 5A. A schematic diagram of a three-dimensional structure. 11 200837483 wherein the spacer 222A is a circular cymbal, and the plurality of filters 2231A-2233A in the color wheel 223A are in the shape of a leaf, and are arranged in a 奚/ring shape. In the present embodiment, the color wheel assembly 22A is the color wheel assembly 22 described in the previous embodiment, and its function, structure, and arrangement relationship have been described in the prior embodiments - and will not be described herein. 6A and FIG. 6B, wherein FIG. 6A is a schematic structural view of one of the color wheel assemblies 22A according to still another preferred embodiment of the present invention, and FIG. 6B is a spacer 222 and a color wheel 223 in FIG. A structural exploded view. In this embodiment, the joints 2221Β-2223 of the spacer 222Β are located on the outer periphery ′ of the spacer 222 to form a circular spacer having a plurality of grooves. The plurality of filters 2231 Β - 2233 in the color wheel 223 具有 have a fan shape of an oblique angle and are arranged in a ring shape with each other. In addition, the color wheel assembly 22 of the present embodiment is the color wheel assembly 22 of the preferred embodiment, and its function, structure, and arrangement relationship are described in the preferred embodiment, and details are not described herein. . In addition, in the embodiment, the color wheel assembly 22 can further include a positioning member 224, and the motor 221 is axially disposed on the positioning member 224. Referring to FIG. 7A and FIG. 7B, FIG. 7 is a schematic structural view of the filter 2231C-2233C and the hub 2234 of the color wheel 223C in the color wheel assembly 22C according to still another preferred embodiment of the present invention. FIG. 7 is a schematic structural view of one of the color wheel assemblies 22C of FIG. In the present embodiment, the color wheel 223C is different from the color wheel 223Α, 2ΜΒ in the above embodiment in that the color wheel 223C has a plurality of filters 2231C-2233C and a valley portion 2234, and the filter 2231〇2233C is It is in the shape of a leaf, and the filter 12 200837483 2231C-2233C is looped on the hub 2234. Among them, the color wheel 223C does not have a spacer, and the color wheel 223C is directly coupled to the motor 221. As shown in Fig. 7B, the filters 2231C-2233C are at an angle to the surface 2213 of the motor 221. - In summary, the color wheel assembly according to the present invention has an angle between the filter of the color wheel and the surface of the motor, so that the color wheel rotates, and the filter can drive the surrounding air to flow. The color wheel of the fan. In this way, the heat energy is more easily dissipated by means of air convection. Compared with the known technology, the color wheel assembly of the present invention can assist the air flow, so the town avoids temperature of other electronic components in the color wheel assembly or the projection system. A situation that is too high and causes damage. The above is intended to be illustrative only and not limiting. Any changes or modifications of the spirit and scope of the present invention are intended to be included in the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1A is a side cross-sectional view of a conventional color wheel assembly; FIG. 1B is a side cross-sectional view of another conventional color wheel assembly; FIG. 2 is a preferred embodiment of the present invention. A schematic diagram of a color wheel set projection system; w is used for one = 3 is a color wheel assembly according to a preferred embodiment of the present invention. FIG. 4A is an exploded view of one of the preferred film and the color wheel according to the present invention. The color wheel assembly of the embodiment is 13 13374437. FIG. 4B is a perspective view showing a structure of a spacer and a color wheel in a color wheel assembly according to a preferred embodiment of the present invention; FIG. 5A is a preferred embodiment of the present invention. FIG. 5B is a schematic perspective view showing one of the spacer and the color wheel in another color wheel assembly according to a preferred embodiment of the present invention; FIG. 6A is a schematic view of the spacer and the color wheel in another color wheel assembly according to a preferred embodiment of the present invention; FIG. 6B is a schematic exploded view of a spacer and a color wheel in a color wheel assembly according to another preferred embodiment of the present invention; FIG. According to still another preferred embodiment of the present invention A schematic structural view of one of the filter and the hub in a color wheel assembly of the embodiment; and FIG. 7B is a schematic structural view of a color wheel assembly according to still another preferred embodiment of the present invention. Symbol description: φ 1 : Color wheel assembly 11 : Motor 111 : Shaft cover 112 : Motor body - 1121 : Rotary shaft ' 113 : Motor housing 12 : Color wheel 13 : Cover sheet 14 200837483 14 : Positioning member 2 : Projection System 21: light source 211: lamp cover. 22, 22A, 22B, 22C: color wheel assembly 221: motor 2211: body 2212: housing 2213: surface 222, 222A, 222B: spacers 2221-2223, 2221B-2223B: joint 223, 223A, 223B, 223C: color wheel 2231-2233, 2231B-2233B, 2231C-2233C: filter 2234: hub 224: positioning member 23: projection lens • 231: first lens 232: second lens 24: Digital micromirror element 241: Mirror stomach 25 · · Projection lens - S : Screen hi, h2 : Height (9: Angle 15