1365037 [ϊόο年.12月16日按正_頁 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明涉及一種散熱裝置及其應用之投影機。 【先前技術】1365037 [ϊόο年. December 16th Press _Page VI. Description of the Invention: [Technical Field of the Invention] [0001] The present invention relates to a heat sink and a projector for the same. [Prior Art]
[0002] 隨著電子產品之功能和複雜性日益提高，其功耗不斷增 長，而功耗通常轉換成熱能，因此電子產品所產生之熱 能也不斷增加。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，導致電子產品内部之溫度迅速提高，影響了 產品之可靠性及使用壽命。 [0003] 在投影機中，熱流密度急劇上升之問題表現之尤為突出 。在追求投影機小型化，高亮度之情況下，投影機之功 率密度較其他之電子產品高出許多，其中光源之功耗約 佔整個投影機之系統功耗之75%，因此光源之散熱設計 係投影機設計之關鍵。 [0004] 投影機之數位微鏡裝置（DMD)及驅動電路板也會產生一 部分熱量，因此為了使投影機穩定可靠之工作，對數位 微鏡裝置（DMD)及驅動電路板之散熱問題也係投影機設 計之重要内容。 [0005] 風冷散熱係投影機最常見之散熱方式。目前之風冷散熱 係借助風扇對每個熱源部位分別配置相應之散熱風扇來 進行散熱’這樣不僅會造成投影機之體積增大，結構複 雜，成本較高’而且還會增加投影機之噪音和振動。 【發明内容】 097133103 表單编號A0101 第5頁/共23頁 1003466570-0 1365037 1 丨月 [0006] 有鑒於此，有必要提供一種噪音及振動較小之投影機。 ^ [0007] 一種投影機，其包括一外殼，一底座，至少一光源，一 散熱模組及一光學引擎殼。所述至少一光源，所述散熱 模組及所述光學引擎殼固設於所述外殼及底座所組成之 空間内。所述外殼包括相對設置之第一側壁及第三侧壁 ，與第一侧壁相鄰接之第二側壁及第四側壁，所述光學 引擎殼包括一進光部及一出光部，所述進光部與第三側 壁及第四側壁鄰接’所述至少一光源位於所述進光部上 • 面向所述第一側壁的表面上。所述第一側壁上遠離第二 侧壁的一端開設有一進風口，所述第二侧壁上鄰近第一 • 側壁的一端開設有一出風口。所述散熱裝置位於所述進 光部與所述第一側壁之間，並包括一抽風機，—送風機 及一散熱模組《所述抽風機包括一出風孔及相對的兩個 抽風面，所述出風孔位於所述抽風機的側壁上，且所述 出風孔與所述兩個抽風面相垂直，其中一個抽風面與所 述進風口相對SX置，且與所述進風口部分重合。所述送 風機包括一進風面及一出風面。所述進風面與所述出風 面平行設置。所述散熱模組貼設在所述至少一光源上， 並包括相對設置的起始端及終止端。所述起始端與抽風 機的出風孔相連接，所述終止端與所述送風機的進風面 相連接。所述投影機之外部及内部之空氣分別從所述抽 風機的兩個抽風面進入所述抽風機，然後從所述抽風機 的出風扎流入所述散熱模組内帶走熱量，帶有熱量的氣 體被所述送風機排到所述投影機之外部。 [0008] 相較於先前技術，本發明之投影機，主要利用散熱模組 097133103 表單編號A0101 第6頁/共23 w ' 1003466570-0 1365037 1100 年.12 月 吸收投影機内部之光源所產生之熱量，然“風機將C^— 抽進風道巾，風流過散熱馳後被料機送出投影機， ~速了風在風道中之流動速度’因此可大大減小風扇轉 速，有效降低投影機之噪音及振動。 【實施方式】 [〇〇〇9]請參閱圖1，為本發明第一實施方式提供之一種投影機 200，其包括外殼210，底座220，鏡頭23〇，光學引擎殼 240，發熱元件250及一散熱裝置10〇。 # [0010]所述外殼210包括相對設置之第一側壁211及第三側壁 213 ’與第-側壁211相鄰接之第二側壁212及第四側壁 214。所述第一側壁211上遠離第二側壁212之一端開設 有一進風口no，所述第二侧壁212上鄰近第一側壁2ΐι 之一端開設有一出風口 120。且所述進風口 11〇與出風口 120之間形成一風道1〇1。所述第四侧壁214上鄰近第一 側壁211之一端設置有一柵格狀之通風口 215 (見圖2)。 所述底座220包括與外殼210之第一側壁2n、第二側壁 _ 212、第三側壁213及第四側壁214分別對應之第一側邊 221 '第二側邊222、第三側邊223及第四側邊224。所述 鏡頭230鄰近所述底座220之第三側邊223設置，且所述 鏡頭230之光軸平行於所述第三側邊223。 [〇〇11]如圖2所示，所述光學引擎殼240包括一進光部241 久一出 光部242,且所述進光部241與出光部242呈類似“l”型 設置，所述進光部241包括與所述鏡頭230之光軸平行且 鄰近所述鏡頭230之第一側243，與所述鏡頭230光軸平 行且运離鏡頭230之第二側244，垂直連接第一側243及 $ 表單編號A0101 第7頁/共23頁 1003466570-0 3ό5〇3^ 100^12^ 16 0 ^^9 第二側244之第三側245 ’所述出光部2仏包括平行所述 第三侧邊223之第四側246，平行所述第四側邊224之第 五側247。所述光學引擎殼24〇之第五側⑷沿與第四側 邊224平行之方向固定一金屬板248。且所述金屬板248 t側壁與部分通風〇215重合，因此外界之風可從通風口 215之邊緣進入投影機2〇〇内部。 [0012] 如圖3所示’所述發熱元件250包括三個!^])光源251，驅 動電路板252及數位微鏡裝置253。其中兩個led光源251 位於所述進光部241之第二側244，另一個LED光源251位 Φ 於所述進光部241之第三侧245。所述驅動電路板252固 定於所述金屬板248上靠近所述底座220之第一側邊221 之一端。所述驅動電路板252上與所述金屬板248相對之 一側固定一散熱板254。所述數位微鏡裝置253位於所述 光學引擎殼240之内部且鄰近所述光學引擎殼240之第四 側246 〇 [0013] • 如圖2所示，所述散熱裝置1〇〇用於對投影機2〇〇之發熱元 件250 (見圖3)進行散熱，其包括一抽風機130，〆送風 機140及一散熱模組150。 [0014] 所述抽風機130包括一出風孔131及相對之兩個抽風面 132，所述出風孔131位於所述抽風機130之側壁上’所 述抽風面132與所述進風口 110平行設置，且所述抽風面 132與部分進風口 110重合，因此外界之空氣可通過所述 進風口 110之邊緣進入投影機2〇〇内部。所述投影機 外部及内部之風彳分別從兩個抽風面132進入抽風機130 097133103 ，然後從出風孔131流入所述風道1〇1中。所述送風機 表單編號 AG1G1 % 8 23 I 1003466570-0 1365037 100年.12月ϊβ日修正替換頁 140包括一進風面141及一出風面142。所述出風面142與 部分出風口 120重合，因此外界之空氣也可通過出風口 120之邊緣進入投影機2〇〇内部。在本實施方式中，所述 抽風機130為一渦流風扇，所述送風機14〇為一軸流風扇 [0015]所述散熱模組150與所述投影機2〇〇之LED光源251相接觸 ，用於吸收所述LED光源251所產生之熱量。在本實施方 式中，所述散熱模組150包括熱管16〇，第一散熱塊17〇 及第二散熱塊180。所述熱管160包括一蒸發段161、一 冷凝段162及連接所述蒸發段161及冷凝段162之絕熱段 163。所述熱管160用於將第二散熱塊18〇之熱量傳到第 -散熱塊Π0處。如圖4所示，所述第一散熱塊m與其中 兩個LED光源251鄰近，且位於所述風道1〇1中所述第 二散熱塊18〇與另-LED光源251鄰近，且位於所述出風 口 12 0附近。 [_如圖2所示’所述第-散熱塊17〇及第二散熱塊⑽均包括 多個平行設置之散熱片m ’相鄰之兩個散熱片19〇之間 形成間隙’風可以從間隙中流過。所述第一散熱塊17〇及 第二散熱塊18〇上與所述LED光源251鄰近之一側均為金 屬平面191，分別用於將LED光源251之熱量傳到第一散 熱塊170或第一散熱塊180上。在所述第一散熱塊17〇上 與所述金屬平面191相對之-側還貼附有一開有凹槽m 之金屬塊17卜所述凹槽172用於容柄所述熱管16〇之冷 凝段162。在所述第二散熱塊18〇之金屬平面191上開設 有一溝槽181，用於容納所述熱管16〇之蒸發段丨^。如 097133103 表單编號A0101 第9頁/共23頁 1003466570-0 1365037 [0017] 1 1 圖1及圖2所干故n E^.12月16曰核正_頁 括起㈣17 散熱塊170沿風道1〇1之方向包 ==Γ所述起始端173與所述抽風 機1歡進二=所述终止端174與所述送風 崎風面141鄰近且平行設置。 如圖4所示，痛mi 所述放熱裝置100之散熱過程如下：所述第 吸收其中兩個UD光源251之熱量，所述第 画所迷第=—广光源251之熱量，所述熱管 第一散熱塊180上之熱量傳到第一散埶 上’ Μ㈣量集中。當抽風機13()將風 進風道101中，風 風口 110抽 ，缺m 塊之間隙將熱量帶走 厂曼4帶著熱量之風被送風機14G從出風口12〇送出 從而將熱量釋放出去。同時由於送風機140不斷將風送 出投影機2〇〇 ,备*山 υυ ,會在出風口12〇周圍形成負壓，所以出風 口 120之邊緣也會有風進人投影機，且所述第二散熱 塊180位於所述出風口 12〇附近，因此這部分風會流經第 一散”’、塊18〇 ,帶走第二散熱塊18〇之一部分熱量。可以 理解，由於所述驅動電路板252位於所述進風口 110及通 風口 215 (見圖2)附近，且所述抽風機13〇可將投影機 200内部之空氣也抽進風道1〇1中，因此造成在所述通風 口 215及進風口 11〇附近形成負壓，一些風可以從通風口 215及進風口 110之邊緣進入投影機200内部，這些風流 經政熱板254，然後被抽風機130抽進第一散熱塊中. ’帶走所述驅動電路板252所產生之熱量。可以理解，所 述通風口 21 5也可以不開設。 [0018] 如圖3所示，在數位微鏡裝置253之外側貼附一具有漫槽 097133103 表單編號麵1帛錄23胃 1003466570-0 1365037 .100年·12月16日 255之第三散熱塊256，然後將一大小合適之導熱片258 貼附在所述第三散熱塊256上，這樣可以避免由於第三散 熱塊256與外殼210在組裝過程中接觸不良而導致之第三 散熱塊256上之熱量不能迅速之傳到外殼21〇上β同時在 外殼210之内部與所述數位微鏡裝置253對應之位置貼附 一具有均熱效果之薄片257，如石墨片或鋁箔片等。所述 薄片257可以將數位微鏡裝置253產生之熱量傳到外殼 210上’從而將熱量釋放出去。可以理解，所述薄片257[0002] As the functions and complexity of electronic products increase, their power consumption continues to increase, and power consumption is usually converted into heat, so the heat generated by electronic products is also increasing. The miniaturization of electronic products has led to a sharp rise in the heat flux density of the product (that is, the heat transferred per unit time through the unit heat transfer area), resulting in a rapid increase in the temperature inside the electronic product, affecting the reliability and service life of the product. [0003] In the projector, the problem of a sharp rise in heat flux density is particularly prominent. In the pursuit of miniaturization and high brightness of the projector, the power density of the projector is much higher than other electronic products, wherein the power consumption of the light source accounts for about 75% of the system power consumption of the entire projector, so the heat dissipation design of the light source It is the key to projector design. [0004] The digital micromirror device (DMD) and the driver circuit board of the projector also generate a part of heat. Therefore, in order to make the projector work stably and reliably, the heat dissipation problem of the digital micromirror device (DMD) and the driving circuit board is also Important content of projector design. [0005] Air-cooled heat sinks are the most common way to dissipate heat. At present, the air-cooling heat dissipation system uses a fan to dispose each heat source portion with a corresponding heat-dissipating fan for heat dissipation, which not only causes the volume of the projector to increase, the structure is complicated, and the cost is high, and the noise of the projector is increased. vibration. SUMMARY OF THE INVENTION 097133103 Form No. A0101 Page 5 of 23 1003466570-0 1365037 1 丨月 [0006] In view of this, it is necessary to provide a projector with less noise and vibration. ^ [0007] A projector comprising a housing, a base, at least one light source, a heat dissipation module and an optical engine housing. The at least one light source, the heat dissipation module and the optical engine case are fixed in a space formed by the outer casing and the base. The outer casing includes a first sidewall and a third sidewall opposite to each other, and a second sidewall and a fourth sidewall adjacent to the first sidewall. The optical engine casing includes a light entering portion and a light emitting portion. The light entrance portion is adjacent to the third side wall and the fourth side wall. The at least one light source is located on the light incident portion and faces the surface of the first side wall. An air inlet is defined in an end of the first side wall away from the second side wall, and an air outlet is defined in an end of the second side wall adjacent to the first side wall. The heat dissipating device is located between the light entering portion and the first side wall, and includes an exhaust fan, a blower and a heat dissipating module. The exhaust fan includes an air outlet and two opposite air extracting surfaces. The air outlet hole is located on a sidewall of the air blower, and the air outlet hole is perpendicular to the two air extraction surfaces, wherein one of the air extraction surfaces is disposed opposite to the air inlet and SX is partially overlapped with the air inlet portion . The blower includes an air inlet surface and an air outlet surface. The air inlet surface is disposed in parallel with the air outlet surface. The heat dissipation module is attached to the at least one light source and includes oppositely disposed start ends and end ends. The starting end is connected to an air outlet of the air blower, and the terminating end is connected to an air inlet face of the blower. The air outside and inside the projector enters the exhaust fan from the two exhaust surfaces of the exhaust fan, and then flows into the heat dissipation module from the air outlet of the exhaust fan to carry away heat. The heat of the gas is discharged to the outside of the projector by the blower. Compared with the prior art, the projector of the present invention mainly utilizes a heat dissipation module 097133103, form number A0101, page 6 / total 23 w '1003466570-0 1365037 1100. December, absorbs the light source inside the projector. Heat, then "the fan will pump C^- into the air duct towel, the wind will flow through the heat sink and the feeder will send out the projector, and the speed of the wind in the air duct will greatly reduce the fan speed, effectively reducing the projector. [Embodiment] [FIG. 1] Referring to FIG. 1 , a projector 200 according to a first embodiment of the present invention includes a housing 210, a base 220, a lens 23A, and an optical engine housing 240. The heating element 250 and a heat dissipating device 10〇. [0010] The outer casing 210 includes a first side wall 211 and a third side wall 213 ′ opposite to each other, and a second side wall 212 and a fourth side wall adjacent to the first side wall 211 214. An air inlet port is defined in one end of the first side wall 211 away from the second side wall 212. An air outlet 120 is defined in one end of the second side wall 212 adjacent to the first side wall 2ΐ. The air inlet port 11〇 With the air outlet 120 A wind tunnel is formed on the first side wall 214. A grid-shaped vent 215 (see FIG. 2) is disposed on one end of the fourth side wall 214. The base 220 includes a first side wall of the outer casing 210. 2n, the second side wall _212, the third side wall 213 and the fourth side wall 214 respectively correspond to the first side 221 'the second side 222, the third side 223 and the fourth side 224. The lens 230 is adjacent to the The third side 223 of the base 220 is disposed, and the optical axis of the lens 230 is parallel to the third side 223. [11] As shown in FIG. 2, the optical engine case 240 includes a light entrance. The portion 241 is a light-emitting portion 242 for a long time, and the light-incident portion 241 and the light-emitting portion 242 are arranged in an "1-" shape, and the light-incident portion 241 is parallel to the optical axis of the lens 230 and adjacent to the lens 230. The first side 243 is parallel to the optical axis of the lens 230 and is transported away from the second side 244 of the lens 230, vertically connected to the first side 243 and form number A0101 page 7 / total 23 pages 1003466570-0 3ό5〇3^ 100 ^12^ 16 0 ^^9 The third side 245 of the second side 244 ′′ the light exiting portion 2仏 includes a fourth side 246 parallel to the third side 223, parallel to the fourth The fifth side 247 of the side 224. The fifth side (4) of the optical engine casing 24 is fixed to a metal plate 248 in a direction parallel to the fourth side 224. The side wall of the metal plate 248 t coincides with a portion of the ventilation raft 215 Therefore, the outside wind can enter the inside of the projector 2 from the edge of the vent 215. [0012] As shown in FIG. 3, the heating element 250 includes three light sources 251, a driving circuit board 252, and a digital micromirror device 253. Two LED light sources 251 are located on the second side 244 of the light entrance portion 241, and the other LED light source 251 is located on the third side 245 of the light entrance portion 241. The driving circuit board 252 is fixed on the metal plate 248 near one end of the first side 221 of the base 220. A heat dissipation plate 254 is fixed to a side of the driving circuit board 252 opposite to the metal plate 248. The digital micromirror device 253 is located inside the optical engine casing 240 and adjacent to the fourth side 246 of the optical engine casing 240. [0013] As shown in FIG. 2, the heat sink 1 is used for The heat generating component 250 (see FIG. 3) of the projector 2 performs heat dissipation, and includes a blower 130, a blower fan 140 and a heat dissipation module 150. [0014] The exhaust fan 130 includes an air outlet 131 and two opposite air extraction surfaces 132. The air outlet 131 is located on a sidewall of the exhaust fan 130. The air extraction surface 132 and the air inlet 110 Parallelly disposed, and the exhaust surface 132 coincides with a portion of the air inlet 110, so that outside air can enter the inside of the projector 2 through the edge of the air inlet 110. The wind and the outside of the projector enter the exhaust fan 130 097133103 from the two exhaust faces 132, respectively, and then flow into the air duct 1〇1 from the air outlet hole 131. The blower form number AG1G1 % 8 23 I 1003466570-0 1365037 The 100. December ϊβ day correction replacement page 140 includes an air inlet surface 141 and an air outlet surface 142. The air outlet surface 142 overlaps with a portion of the air outlet 120, so that outside air can also enter the interior of the projector 2 through the edge of the air outlet 120. In the present embodiment, the exhaust fan 130 is a vortex fan, and the blower 14 is an axial fan. [0015] The heat dissipation module 150 is in contact with the LED light source 251 of the projector 2 It is used to absorb the heat generated by the LED light source 251. In this embodiment, the heat dissipation module 150 includes a heat pipe 16A, a first heat dissipation block 17A, and a second heat dissipation block 180. The heat pipe 160 includes an evaporation section 161, a condensation section 162, and an adiabatic section 163 connecting the evaporation section 161 and the condensation section 162. The heat pipe 160 is configured to transfer the heat of the second heat sink block 18 to the first heat sink block Π0. As shown in FIG. 4, the first heat dissipating block m is adjacent to two of the LED light sources 251, and the second heat dissipating block 18 is located adjacent to the other LED light source 251 in the air channel 1? The air outlet is near the vicinity of 120. [_ As shown in FIG. 2, the first heat dissipating block 17〇 and the second heat dissipating block (10) each include a plurality of heat sinks m' disposed in parallel with each other, and a gap is formed between two adjacent fins 19'. Flow through the gap. One side of the first heat dissipating block 17 〇 and the second heat dissipating block 18 与 adjacent to the LED light source 251 is a metal plane 191 for respectively transferring the heat of the LED light source 251 to the first heat dissipating block 170 or the first A heat sink block 180. A metal block 17 having a groove m is attached to the side of the first heat dissipating block 17 opposite to the metal plane 191. The groove 172 is used for condensing the heat pipe 16 Segment 162. A groove 181 is defined in the metal plane 191 of the second heat dissipating block 18A for accommodating the evaporation section of the heat pipe 16〇. Such as 097133103 Form No. A0101 Page 9 / Total 23 Page 1003466570-0 1365037 [0017] 1 1 Figure 1 and Figure 2 dry n E ^. December 16 曰 正 _ page enclosed (four) 17 heat block 170 along the wind The direction of the track 1 〇 1 == Γ the starting end 173 and the exhaust fan 1 are joyous two = the terminating end 174 is adjacent to and parallel to the air blowing surface 141. As shown in FIG. 4, the heat dissipation process of the heat release device 100 is as follows: the heat of absorbing the two UD light sources 251, the heat of the first light source 251, the heat pipe number The heat on a heat sink block 180 is transferred to the first divergence volume. When the exhaust fan 13() puts the wind into the air duct 101, the tuyere 110 is pumped, and the gap between the m blocks is taken away from the heat. The wind with the heat is sent by the blower 14G from the air outlet 12 to release the heat. . At the same time, since the blower 140 continuously sends the wind out of the projector 2, the mountain is formed, and a negative pressure is formed around the air outlet 12, so that the wind enters the projector at the edge of the air outlet 120, and the second The heat dissipating block 180 is located near the air outlet 12 ,, so this part of the wind will flow through the first scatter "', block 18 〇, and take away part of the heat of the second heat sink block 18 。. It can be understood that due to the drive circuit board 252 is located in the vicinity of the air inlet 110 and the vent 215 (see FIG. 2), and the exhaust fan 13〇 can also suck the air inside the projector 200 into the air duct 1〇1, thereby causing the vent 215 and the air inlet 11 形成 form a negative pressure, some wind can enter the inside of the projector 200 from the edge of the vent 215 and the air inlet 110, these winds flow through the political hot plate 254, and then drawn into the first heat sink by the exhaust fan 130 'The heat generated by the driving circuit board 252 is taken away. It can be understood that the vents 215 may not be opened. [0018] As shown in FIG. 3, one of the outer sides of the digital micromirror device 253 is attached. Diffuse slot 097133103 Form number face 1 record 23 stomach 100 3466570-0 1365037 . The third heat sink block 256 of 255, December 16th, 255, and then a suitable size of the heat conductive sheet 258 is attached to the third heat sink block 256, so that the third heat sink block 256 can be avoided. The heat on the third heat dissipating block 256 caused by the poor contact with the outer casing 210 during the assembly process cannot be quickly transmitted to the outer casing 21, and the inner surface of the outer casing 210 is attached to the position corresponding to the digital micromirror device 253. A sheet 257 having a soaking effect, such as a graphite sheet or an aluminum foil sheet, etc. The sheet 257 can transfer heat generated by the digital micromirror device 253 to the outer casing 210 to release heat. It is understood that the sheet 257
可將外殼210上之熱量均勻散發開，從而更利於熱量之釋 放。本實施方式中’所採用之薄片257為石墨片。實驗證 明’此種做法可以將數位微鏡裝置253之溫度由65度迅速 降至56度。 [0019] 請參閱圖5，為本發明第二實施方式提供之投影機4〇〇， 所述投影機400中之三個led光源451均並列放置在所述 光學引擎殼440之第二側444，因此所述散熱模組350只 包括第一散熱塊370，此時所述三個LED光源451所產生 之熱量可以被同時傳到第一散熱塊37〇上，然後當抽風機 330將風從進風口 310抽進風道3〇1中，風流過第一散熱 塊370將熱置帶走’然後這些帶著熱量之風被送風機34〇 從出風口 320送出，從而將熱量釋放出去。 [0020] 本發明之投影機，主要利用散熱模組吸收投影機内部發 熱元件所產生之熱量，然後抽風機將風抽進風道中，風 流過散熱模組後被送風機送出投影機，加速了風在風道 中之流動速S ’可大大降低風扇轉速，而且對數位微鏡 裝置之散熱採用熱傳導之方式，可簡單快速之將熱量散 097133103 表單编號A0101 第11頁/共23頁 1003466570-0 13.65037 .100年.12月16日核正_頁 發出去，從而有效降低投影機之噪音及振動。 _]综上減，本㈣符合發料财件，爰紐提出專利 申請。惟’以上所述者僅為本發明之巍實施方式本 發明之範®並不以上述實施方式為限，舉凡熟悉本案技 藝之人士援依本發明之精神所作之等效料或變化，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-實施方式提供之投影機之分解圖； [0023]圖2係圖1之投影機另一狀態之分解圖； [〇〇24]圖3係圖2之投影機之另一視角之示意圖； [0025] ®4係圖1之投气機去掉上篕之俯視示意圖； 闺圖5係本發明第二實施方式提供之投影機去掉上蓋之俯i 示意圖。The heat on the outer casing 210 can be evenly distributed, which is more conducive to the release of heat. The sheet 257 used in the present embodiment is a graphite sheet. Experiments have shown that this method can quickly reduce the temperature of the digital micromirror device 253 from 65 degrees to 56 degrees. 5 is a projector 4 according to a second embodiment of the present invention. Three LED light sources 451 of the projector 400 are juxtaposed on the second side 444 of the optical engine casing 440. Therefore, the heat dissipation module 350 only includes the first heat dissipation block 370. At this time, the heat generated by the three LED light sources 451 can be simultaneously transmitted to the first heat dissipation block 37〇, and then when the suction fan 330 winds the wind The air inlet 310 is drawn into the air passage 3〇1, and the wind flows through the first heat dissipation block 370 to take the heat away. Then these heat-carrying winds are sent out from the air outlet 320 by the blower 34, thereby releasing the heat. [0020] The projector of the present invention mainly uses the heat dissipation module to absorb the heat generated by the internal heating elements of the projector, and then the exhaust fan draws the wind into the air duct, and the air flows through the heat dissipation module and is sent to the projector by the blower to accelerate the wind. The flow speed S ' in the air duct can greatly reduce the fan speed, and the heat dissipation of the digital micro-mirror device adopts the heat conduction mode, which can easily and quickly dissipate the heat 097133103. Form No. A0101 Page 11 / 23 pages 1003466570-0 13.65037 .100 years. On December 16th, the nuclear _ page was sent out, which effectively reduced the noise and vibration of the projector. _] In summary, this (four) is in line with the issue of financial assets, and the company has filed a patent application. However, the above description is only the present invention. The present invention is not limited to the above embodiments, and any equivalent material or change made by those skilled in the art in accordance with the spirit of the present invention should be It is covered by the following patent application. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded view of a projector according to a first embodiment of the present invention; [0023] FIG. 2 is an exploded view of another state of the projector of FIG. 1; [〇〇24] FIG. 2 is a schematic view of another perspective view of the projector of FIG. 2; [0025] FIG. 5 is a top view of the air extractor of FIG. 1 with the top cover removed; FIG. 5 is a view of the projector provided by the second embodiment of the present invention. i Schematic.
[0027] 【主要元件符號說明】 散熱裝置：100 [0028] 風道：101、301 [0029] 進風口 ： 110、310 [0030] 出風口 ： 120、320 [0031] 抽風機：130、330 [0032] 出風孔：131 [0033] 抽風面：132 097133103 表單編號A0101 第12頁/共23頁 1003466570-0 1365037[Description of main component symbols] Heat sink: 100 [0028] Air duct: 101, 301 [0029] Air inlet: 110, 310 [0030] Air outlet: 120, 320 [0031] Exhaust fan: 130, 330 [ 0032] Air outlet: 131 [0033] Ventilation surface: 132 097133103 Form number A0101 Page 12 of 23 1003466570-0 1365037
[0034] 送風機：140 [0035] 進風面：141 [0036] 出風面：142 [0037] 散熱模組：150、350 [0038] 熱管：160 [0039] 蒸發段：161 [0040] 冷凝段：162 [0041] 絕熱段：163 [0042] 第一散熱塊： 170 、 370 [0043] 金屬塊：171 [0044] 凹槽：172 [0045] 起始端：173 [0046] 終止端：174 [0047] 第二散熱塊： 180 [0048] 溝槽：181 [0049] 散熱片：190 [0050] 金屬平面：1 91 [0051] 投影機：200 ' 400 [0052] 外殼：210 100年.12月16日按正_頁 097133103 表單編號A0101 第13頁/共23頁 1003466570-0 13.65037[0034] Air blower: 140 [0035] Air inlet surface: 141 [0036] Air outlet surface: 142 [0037] Heat dissipation module: 150, 350 [0038] Heat pipe: 160 [0039] Evaporation section: 161 [0040] Condensation section : 162 [0041] Adiabatic section: 163 [0042] First heat sink block: 170, 370 [0043] Metal block: 171 [0044] Groove: 172 [0045] Start: 173 [0046] Termination: 174 [0047] ] Second heat sink block: 180 [0048] Trench: 181 [0049] Heat sink: 190 [0050] Metal plane: 1 91 [0051] Projector: 200 ' 400 [0052] Enclosure: 210 100 years. December 16 Day Press 正_Page 097133103 Form No. A0101 Page 13/Total 23 Page 1003466570-0 13.65037
[0053] 第一側壁：211 [0054] 第二側壁：212 [0055] 第三侧壁：213 [0056] 第四側壁：214 [0057] 通風口 ： 21 5 [0058] 底座：220 [0059] 第一側邊：221 [0060] 第二側邊：222 [0061] 第三側邊：223 [0062] 第四側邊：224 [0063] 鏡頭：230 [0064] 光學引擎殼：240、440 [0065] 進光部：241 〇 [0066] 出光部：242 [0067] 第一側：243 [0068] 第二側：244、444 [0069] 第三側：245 [0070] 第四側：246 [0071] 第五側：247 097133103 表單編號A0101 第14頁/共23頁 100年.12月16日核正替換頁 1003466570-0 1365037 _：_- 100年.12月16日修正替换頁 [0072] 金屬板：248 [0073] 發熱元件：250 [0074] 光源：251、451 [0075] 驅動電路板：252 [0076] 數位微鏡裝置：253 [0077] 散熱板：254 [0078] 淺槽：255[0053] First side wall: 211 [0054] Second side wall: 212 [0055] Third side wall: 213 [0056] Fourth side wall: 214 [0057] Vent: 21 5 [0058] Base: 220 [0059] First side: 221 [0060] Second side: 222 [0061] Third side: 223 [0062] Fourth side: 224 [0063] Lens: 230 [0064] Optical engine case: 240, 440 [ 0065] Light-in part: 241 〇 [0066] Light-emitting part: 242 [0067] First side: 243 [0068] Second side: 244, 444 [0069] Third side: 245 [0070] Fourth side: 246 [ 0071] Fifth side: 247 097133103 Form number A0101 Page 14 of 23 Page 100. December 16th Nuclear replacement page 1003466570-0 1365037 _:_- 100 years. December 16th revision replacement page [0072] Metal plate: 248 [0073] Heating element: 250 [0074] Light source: 251, 451 [0075] Driving circuit board: 252 [0076] Digital micromirror device: 253 [0077] Heat sink: 254 [0078] Shallow groove: 255
[0079] 第三散熱塊：256 [0080] 薄片：257 [0081] 導熱片：258[0079] Third heat sink block: 256 [0080] Sheet: 257 [0081] Thermal sheet: 258
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