201104341 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明涉及一種投影機。 [先前技術] [0002] 隨著電子產品之功能和複雜性日益提高，功耗不斷增大 ，而功率之損失通常轉換為一定之熱能。電子產品之小 型化要求又使產品之熱流密度（即單位時間内通過單位 傳熱面積所傳遞之熱量）急劇上升，導致電子產品之溫 度迅速^南，影響電子產品之可靠性和使用壽命。 [0003] 在投影機中’熱流密度急劇上升之問題表現尤為突出。 根據投影機之成像原理，由光源模組發出之三基色光後 ’再由DMD (Digital Micromirror Device，數位微 鏡片裝置）按照信號之要求將光反射到螢幕上形成圖像 。為了得到尚流明之亮度輸出，必須通.過大功率之光源 模組來實現’特別是以LED (Light-Emitting Diode) 作為光源模組之投影機，綠光和紅光led產生之熱量高尤 其要進行散熱。因此，對投影機光源模組之散熱設計是 投影機設計之關鍵内容。 [〇〇〇4]然而，先前之投影機中，針對綠光LED、紅光LED和藍光 LED都採用同樣之散熱方式和散熱效率，這樣就會使得功 率相對較高之綠光LED和紅光LED產生之熱量無法及時之 散發出去；而對功率相對較低之藍光LED散熱效率過剩， 造成不必要之損耗。 【發明内容】 [0005] 098125623 有鑑於此，有必要提供一種能有效提高光源模組散熱效 表單編號A0101 第4頁/共13頁 0982043825-0 201104341 [0006] Ο [0007] 〇 [0008] 率之投影機。 一種投影機，其包括一殼體、一光機、一第一散熱鰭片 、一風扇模組及一散熱模組；所述光機固設於殼體内且 該光機包括一光源模組，所述光源模組包括一綠光LED、 一紅光LED及一藍光LED，所述藍光led與紅光LED相對緣 置，所述綠光LED位於藍光LED和紅光LED之間；所述第 一散熱鰭片固設於所述光源模組上鄰近藍光LED之位置處 ;所述風扇模組包括一風扇及一與風扇相連通之第二散 熱鰭片，所述風扇之出風口朝向於殼體外側，所述第二 散熱鰭片固設於所邃光源模組上鄰近紅光LED之位置處； 所述散熱模組包括一第三散熱鰭片、一第四散熱鰭片及 用於連接第三、第四散熱鰭片之熱管，所述第三散熱鰭 片固設於所述光源模組上鄰近綠光LED之位置處，所述第 四散熱鰭片固設於風扇之出風口處。 與先前技術相比，通過分別在靠近紅光LED和綠光LED之 -. 位置處玫置一第二散熱鰭片和一第三散熱鰭片，所述第 二散熱鳍片將紅光led產生之熱量直接傳遞給風扇，所述 第三散熱鰭片將綠光LED產生之熱量直接傳遞給位於風扇 出風口之第四散熱鰭片，從而有效提高了紅光LED和綠光 LED之散熱效率。 【實施方式】 下面將結合附圖與實施例對本技術方案作進一步詳細說 明。 [0009] 098125623 請一併參閱圖1與圖2，為本發明較佳實施方式提供之投 影機100，其包括一殼體10、一電路板2〇 ' 表單編號A0101 第5頁/共13頁 一光機30、 0982043825-0 201104341 一DMD散熱鰭片40、一第一散熱鰭片50、一風扇模組6〇 及一散熱模組70。 [00103 所述殼體1〇呈長方體中空結構，其用於容置電路板2〇、 光機30、DMD散熱鰭片40、第一散熱鰭片5〇、風扇模組 60及散熱模組70。所述殼體1〇包括一第一側面^、一與 第一側面11相對之第二側面12及兩個分別連接於第一側 面11與第二侧面12之間之第二側面13和第四側面14。所 述第一側面11上開設有一鏡頭孔111。在第二侧面12、第 三側面13及第四侧面14上都開設有柵狀通風窗口 1 〇丨，所 述投影機100工作中產生之熱量通過所述通風窗口 1〇1擴 散至殼體10外。 v [0011] 所述電路板20固設在殼體10内，該電路板20用於控制光 機30及風扇模組60等元件之工作。 [0012] 所述光機30放置於電路板20上且與殼體1〇固定連接。所 述光機30呈階梯狀，其包括“鏡頭31 * —光學元件部32 及一光源模組3 3 ;所述鏡頭31與光源模組3 3分別固設於 光學元件部32之進光端和出光端。所述鏡頭31朝向於第 一側面11上之鏡頭孔111，且經過鏡頭31之光線從鏡頭孔 111投射出去。所述光學元件部32包括一 DMD321，所述 DMD321位於光學元件部32内靠近鏡頭31所在之一端，且 其朝向於第三側面13。所述光源模組33包括一綠光 LED331、一紅光LED332及一藍光LED333 ;所述紅光 LED332與藍光LED333相對設置，且所述紅光LED332朝 向於第四側面14 ’所述藍光LED333朝向於第三側面13 ; 所述綠光LED331位於藍光LED333和紅光LED332之間， 098125623 表單編號A0101 第6頁/共13頁 0982043825-0 201104341 [0013] [0014] 〇 [0015] ❹ [0016] 且所述綠光LED331朝向於第一側面η。 所述DMD散熱鰭片40固設於所述光學元件部32上鄰近所述 DMD321之位置處，其用於將DMD321在工作中產生之熱量 散發出去。所述DMD散熱鰭片4〇朝向於第四側面14。 所述第一散熱鰭片50固設於所述光源模組33上鄰近所述 藍光LED333之位置處，其用於傳導藍光LED333在工作中 產生之熱量並散發出去。所述第一散熱鰭片5〇朝向於第 四侧面14。 所述風扇模組60包括一風扇討、二第3散熱鰭片62及一 用於承載風扇61及連接第二散熱鰭片62之承載部63 ;所 述承載部63之形狀與所述風扇61相似，所邊風扇61承載 於承載部63上’所述第二散熱鰭片62固定在承載部63— 端。所述風扇61為近似圓環狀之渦流風屬，在風扇61之 側壁上開設有一進風口 611及一出風口 612 ;所述進風口 611與第二散熱鰭片62相對正《所*述風扇模组60放置於電 路板20上且與殼體|〇相固定連接；所述風扇6丨靠近於所 述鏡頭31設置，且其出風口 612朝向於第三側面13 ;所述 第二散熱鰭片62固設於所述光源模組33上鄰近所述紅光 LED332所在位置處，且其朝向於第二側面12。 所述散熱模組70包括一第三散熱鰭片71、一第四散熱轉 片72及用於連接第三散熱鰭片71和第四散熱鰭片72之熱 管73。所述第三散熱鰭片71固設於所述光源模組33上鄰 近綠光LED331之位置處，且其朝向於第二側面12。所述 第四散熱鰭片72固設於風扇61之出風口 612處，且其朝向 098125623 表單編號Α0101 第7頁/共13頁 0982043825-0 201104341 於第二側面13。所述熱管73包括一蒸發段731及—冷凝段 732，所述蒸發段731連接於第三散熱鰭片71，所述冷凝 段732連接於第四散熱鰭片72。 [0017] [0018] 在投影機100之使用過程，所述DMD321、綠光LED331、 紅光LED332及藍光LED333將產生大量之熱量，而由於綠 光LED331與紅光LED332之功率相對較高，產生之熱量也 就更多。所述DMD321產生之熱量傳導給DMD散熱韓片4〇 。所述藍光LED333產生之熱量傳導給第一散熱韓片5〇。 所述紅光LED332產生之熱量傳導給第二散熱鰭片62。所 述綠光LED331產生之熱量傳導給第三散熱鰭片71，所述 第三散熱鰭片71上之熱量通過熱管73傳遞給第四散熱鰭 片72。當所述風扇61工作時，位於DMD散熱鰭片切及第 一散熱鰭片50上之熱量被風扇61吸收後並從出風口6丨2排 出。所述第二散熱鰭片62上之熱量從進風口 611進入風扇 61後從出風口612排出。所述第四散熱鰭片72上之熱量被 從出風口612吹出之風帶走。風扇61在散熱過程中’所述 殼體ίο内呈負壓狀態，加速了冷空氣從第二側面12及第 四側面14之通風窗口 m進入到殼⑽内，然後經過風扇 61之吸收後從第三側面13之通風窗口 1〇1排出。 本發明實施方式通過分別在#近紅光LED和綠光⑽之位 置處放置-第二散熱鰭片和一第三散熱鰭片，所述第二 散熱鰭片將紅光LED產生之熱量直接傳遞給風扇，所述第 二散熱鰭片將綠光LED產生之熱量直接傳遞給位於風扇出 風口之第四散熱H片’從而有效提高了紅光LED和綠光 LED之散熱效率。 098125623 表單編號A0101 第8頁/共13頁 0982043825-0 201104341 [0019] 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】 [0020] 圖1係本發明實施方式提供之投影機之分解示意圖。 [0021] 圖2係圖1中投影機之組合示意圖。 ❹ 【主要元件符號說明】_ 投影機 100 殼體 10 第一側面 11 第二側面 12 第三側面 13 第四側面 14 通風窗口 101 電路板 20 光機 30 鏡頭 31 光學元件部 32 光源模組 33 綠光LED 331 紅光LED 332 藍光LED 333 MD散熱鰭片 40 第一散熱鰭片 50 風扇模組 60 風扇 61 第二散熱鰭片 62 承載部 63 進風口 611 出風口 612 散熱模組 70 第三散熱鰭片 71 第四散熱鰭片 72 熱管 73 蒸發段 731 冷凝段 732 098125623 表單編號A0101 第9頁/共13頁 0982043825-0201104341 VI. Description of the Invention: [Technical Field of the Invention] [0001] The present invention relates to a projector. [Prior Art] [0002] As the functions and complexity of electronic products increase, power consumption continues to increase, and power loss is usually converted into a certain amount of heat. The miniaturization of electronic products has led to a sharp rise in the heat flux density of the product (ie, the heat transferred through the unit heat transfer area per unit time), resulting in a rapid temperature of the electronic product, affecting the reliability and service life of the electronic product. [0003] The problem of a sharp rise in heat flux density in a projector is particularly prominent. According to the imaging principle of the projector, the three primary colors emitted by the light source module are then reflected by the DMD (Digital Micromirror Device) to reflect the light on the screen to form an image. In order to obtain the lumen output of the lumen, it is necessary to pass the high-power light source module to realize the projector, especially the LED (Light-Emitting Diode) as the light source module. The heat generated by the green light and the red light LED is especially high. Cool down. Therefore, the heat dissipation design of the projector light source module is the key content of the projector design. [〇〇〇4] However, in the previous projectors, the same heat dissipation method and heat dissipation efficiency were adopted for the green LED, the red LED, and the blue LED, which would make the green LED and red light with relatively high power. The heat generated by the LED cannot be dissipated in time; and the blue LED with relatively low power dissipation has excessive heat dissipation efficiency, causing unnecessary loss. SUMMARY OF THE INVENTION [0005] 098125623 In view of this, it is necessary to provide an effective way to improve the heat dissipation of the light source module. Form No. A0101 Page 4 / Total 13 pages 0982043825-0 201104341 [0006] Ο [0007] 〇 [0008] rate The projector. A projector includes a casing, a light machine, a first heat sink fin, a fan module and a heat dissipation module; the light machine is fixed in the casing and the light machine comprises a light source module The light source module includes a green LED, a red LED, and a blue LED. The blue LED is opposite to the red LED, and the green LED is located between the blue LED and the red LED. The first heat dissipation fin is fixed on the light source module at a position adjacent to the blue LED; the fan module includes a fan and a second heat dissipation fin connected to the fan, and the air outlet of the fan faces The second heat dissipating fin is fixed on the outer side of the casing and adjacent to the red LED; the heat dissipating module includes a third heat dissipating fin and a fourth heat dissipating fin and is used for a heat pipe connecting the third and fourth heat dissipating fins, wherein the third heat dissipating fin is fixed on the light source module at a position adjacent to the green LED, and the fourth heat dissipating fin is fixed to the air outlet of the fan At the office. Compared with the prior art, by disposing a second heat dissipation fin and a third heat dissipation fin near the position of the red LED and the green LED, respectively, the second heat dissipation fin generates a red light led The heat is directly transmitted to the fan, and the third heat dissipation fin directly transfers the heat generated by the green LED to the fourth heat dissipation fin located at the fan outlet, thereby effectively improving the heat dissipation efficiency of the red LED and the green LED. [Embodiment] Hereinafter, the present technical solution will be further described in detail with reference to the accompanying drawings and embodiments. [0009] 098125623 Please refer to FIG. 1 and FIG. 2 together, a projector 100 according to a preferred embodiment of the present invention includes a casing 10 and a circuit board 2'' Form No. A0101 Page 5 of 13 A light machine 30, 0982043825-0 201104341 A DMD heat sink fin 40, a first heat sink fin 50, a fan module 6A and a heat dissipation module 70. [00103] The housing 1 is a rectangular parallelepiped hollow structure for accommodating the circuit board 2, the optical machine 30, the DMD heat dissipation fins 40, the first heat dissipation fins 5, the fan module 60, and the heat dissipation module 70. . The housing 1 includes a first side surface, a second side surface 12 opposite to the first side surface 11, and two second side surfaces 13 and 4 respectively connected between the first side surface 11 and the second side surface 12. Side 14. A lens hole 111 is defined in the first side surface 11. A grid-shaped ventilation window 1 开 is formed on the second side surface 12 , the third side surface 13 , and the fourth side surface 14 , and heat generated during operation of the projector 100 is diffused to the housing 10 through the ventilation window 1〇1. outer. [0011] The circuit board 20 is fixed in the housing 10, and the circuit board 20 is used to control the operation of components such as the optical unit 30 and the fan module 60. [0012] The optical machine 30 is placed on the circuit board 20 and is fixedly connected to the housing 1 . The illuminator 30 is stepped and includes a "lens 31 * - an optical component 32 and a light source module 3 3 ; the lens 31 and the light source module 3 3 are respectively fixed to the optical end of the optical component 32 And the light-emitting end. The lens 31 faces the lens hole 111 on the first side surface 11, and the light passing through the lens 31 is projected from the lens hole 111. The optical element portion 32 includes a DMD 321, and the DMD 321 is located in the optical element portion. The light source module 33 includes a green LED 331 , a red LED 332 and a blue LED 333 ; the red LED 332 is opposite to the blue LED 333 , and is disposed at a side of the lens 31 . And the red LED 332 faces the fourth side 14', the blue LED 333 faces the third side 13; the green LED 331 is located between the blue LED 333 and the red LED 332, 098125623 Form No. A0101 Page 6 of 13 [0015] 绿 [0015] 且 [0016] and the green LED 331 is oriented toward the first side η. The DMD fins 40 are fixed on the optical element portion 32 adjacent to the At the position of the DMD 321, which is used to place the DMD321 The heat-dissipating fins of the DMD are radiated toward the fourth side surface 14. The first heat-dissipating fins 50 are fixed on the light source module 33 at a position adjacent to the blue LEDs 333. It is used to conduct heat generated by the blue LED 333 during operation and is emitted. The first heat dissipation fin 5 〇 faces the fourth side 14. The fan module 60 includes a fan and two third heat sink fins 62. And a bearing portion 63 for carrying the fan 61 and connecting the second heat dissipation fins 62; the shape of the bearing portion 63 is similar to that of the fan 61, and the fan 61 is carried on the carrying portion 63. The fins 62 are fixed to the end of the bearing portion 63. The fan 61 is a ring-shaped vortex wind, and an air inlet 611 and an air outlet 612 are defined on the side wall of the fan 61; the air inlet 611 and the second air inlet 611 The heat dissipation fins 62 are relatively positively disposed on the circuit board 20 and are fixedly connected to the casing 〇; the fan 6 设置 is disposed close to the lens 31, and the air outlet 612 is oriented toward a third side surface 13; the second heat dissipation fin 62 is fixed to the light source mold 33 is adjacent to the location of the red LED 332, and faces the second side 12. The heat dissipation module 70 includes a third heat dissipation fin 71, a fourth heat dissipation fin 72, and a third heat dissipation connection. The heat sink 73 of the fin 71 and the fourth heat sink fin 72. The third heat sink fin 71 is fixed on the light source module 33 at a position adjacent to the green LED 331 and faces the second side surface 12. The fourth heat dissipation fin 72 is fixed to the air outlet 612 of the fan 61, and faces the 098125623 form number Α0101, page 7 / total 13 page 0982043825-0 201104341 on the second side 13 . The heat pipe 73 includes an evaporation section 731 and a condensation section 732. The evaporation section 731 is connected to the third heat dissipation fin 71, and the condensation section 732 is connected to the fourth heat dissipation fin 72. [0018] During the use of the projector 100, the DMD 321, the green LED 331, the red LED 332, and the blue LED 333 will generate a large amount of heat, and the power of the green LED 331 and the red LED 332 is relatively high. There is more heat. The heat generated by the DMD 321 is conducted to the DMD heat sink 4〇. The heat generated by the blue LED 333 is conducted to the first heat sink 5 〇. The heat generated by the red LED 332 is conducted to the second heat dissipation fins 62. The heat generated by the green LED 331 is conducted to the third heat sink fin 71, and the heat on the third heat sink fin 71 is transferred to the fourth heat sink fin 72 through the heat pipe 73. When the fan 61 is in operation, the heat on the DMD fins and the first fins 50 is absorbed by the fan 61 and discharged from the air outlets 6丨2. The heat on the second heat dissipation fins 62 enters the fan 61 from the air inlet 611 and is discharged from the air outlet 612. The heat on the fourth fins 72 is carried away by the wind blown from the air outlet 612. During the heat dissipation process, the fan 61 is in a negative pressure state, and the cold air is accelerated from the ventilation window m of the second side surface 12 and the fourth side surface 14 into the casing (10), and then absorbed by the fan 61. The ventilation window 1〇1 of the third side 13 is discharged. In the embodiment of the present invention, the second heat dissipation fin and the third heat dissipation fin are respectively disposed at the position of the near red LED and the green light (10), and the second heat dissipation fin directly transfers the heat generated by the red LED. For the fan, the second heat dissipation fin directly transfers the heat generated by the green LED to the fourth heat dissipation H piece located at the fan outlet, thereby effectively improving the heat dissipation efficiency of the red LED and the green LED. 098125623 Form No. A0101 Page 8 of 13 0982043825-0 201104341 [0019] In summary, the present invention has indeed met the requirements of the invention patent, and the patent application is filed 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 persons skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims. BRIEF DESCRIPTION OF THE DRAWINGS [0020] FIG. 1 is an exploded perspective view of a projector provided by an embodiment of the present invention. 2 is a schematic diagram of the combination of the projectors in FIG. 1. ❹ [Main component symbol description] _ Projector 100 Housing 10 First side 11 Second side 12 Third side 13 Fourth side 14 Ventilation window 101 Circuit board 20 Light machine 30 Lens 31 Optical element part 32 Light source module 33 Green Light LED 331 Red LED 332 Blue LED 333 MD Cooling fin 40 First heat sink fin 50 Fan module 60 Fan 61 Second heat sink fin 62 Bearing part 63 Air inlet 611 Air outlet 612 Thermal module 70 Third heat sink fin Sheet 71 Fourth heat sink fin 72 Heat pipe 73 Evaporation section 731 Condensing section 732 098125623 Form No. A0101 Page 9 of 13 0982043825-0