201100943 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明涉及一種散熱結構，尤其涉及一種DMD散熱結構及 應用該DMD散熱結構的投影機。 【先前技術】 [0002] 數位微鏡裝置（digi tal mirror device，以下簡稱為 DMD )為目前在投影機令使用的重要數位光學裝置，其通 過數以萬計的微小可控鏡片來反射光線從而形成畫面。 投影機中光源發出光線照射在DMD上會使DMD的溫度上升 ，同時DMD上集成的大薑的控制電路在工作時也會產生相 當大的熱量從而使DMD溫度上升。過高的溫度會使DMD的 使用壽命降低，甚至可能損壞DMD。為此’通常會採用散 熱鰭片對DMD進行散熱，然而，散熱鰭片的散熱效率並不 理想，因為，散熱鰭片僅僅通過鰭>{的熱傳導來散熱， 散熱鰭片的數目及大小受到投影機内部狹小空間的限制 從而使得散熱鰭片與空氣接觸的面精較小，不能有效散 熱0 〇 【發明内容】 [0003] 有鑒於此，有必要提供—種可對DjfD進行有效散熱的DMD 散熱結構及應用該DMD散熱結構的投影機。 [0004] —種DMD散熱結構包括—光機機身，，DMD模組，一導熱 元件，一風扇，一光源元件以及〆導流筒。所述DMD模組 設置在所述光機機身上。所述導熱錤件的一端緊貼在所 述DMD模組的背部。所述風扇正對所述DMD模組設置在所 述光機機身一侧’並與所述導熱組件的另一端相貼合。 098120052 表單編號A0101 第3頁/共14頁 0982034105-0 201100943 所述風扇包括/出風口。所述光源組件設置在所述光機 機身上鄰近所述風扇的另一側，所述光源組件上設置有 冷卻風口。所述導流筒設置在所述風扇及光源元件之間 ，且其一端開口位於所述風扇的出風口處，另一端開口 正對所述光源組件的冷卻風口。 [0005] [0006] [0007] —後投影機，其包括—機殼，複數系統風扇。該投影機 還包括如上所述的MD散熱結構，DMD散熱結構設置在所 述機殼内部’在所述機殼上對應所述DMD散熱結構的風扇 及光源元件的側壁上分別設置有第一風口及第二風口， 所述複數系統風扇_設:=置.在所述機殼内並與所述機殼的第 二風口相對正。 相較現有技術，本發明的DMD散熱結構及其應用的投影機 通過同一風扇對DMD模組及光源元件進行散熱，可以節省 先前技術中用以對DMD模組進行散熱的散熱鰭片。同時通 過風扇可加快DMD模組的散熱。此外，.通過一風扇同時對 DMD模組及光源元件散熱可提高風扇的使用效率。 【實施方式】 請參閱圖1及2，本發明較佳實施方式提供的一種DMD散熱 結構100。所述DMD散熱結構1〇〇包括一光機機身11()，一 DMD模組120，一導熱元件13〇，_風扇14〇 , 一光源元件 150以及一導流筒160。所述DMD模組120設置在所述光機 機身110上。所述導熱組件130的一端緊貼在所述dmd模 組120的背部。所述風扇140正對所述dmd模組120設置在 所述光機機身110—側，並與所述導熱組件13()的另一端 相貼合，所述風扇140包括一出風口 141。所述光源組件 098120052 表單編號A0101 第4頁/共14頁 0982034105-0 201100943 150設置在所述光機機身11〇上鄰近所述風扇Ι4〇的另— 侧，所述光源組件1 5 〇上設置有冷卻風口（圖未示）。所 述導流筒160設置在所述風扇140及光源元件15〇之間， 且其一端開口位於所述風扇14〇的出風口14丨處，另一端 開口正對所述光源組件150的冷卻風口。 [0008] Ο 所述光機機身110内部設置有複數用以調製光線的元件如 色輪、積分柱、棱鏡組、反光鏡以及射出鏡片組等光學 元件（圖未示），用以定向傳播所述光源元件15〇所發出 的光線至所述DMD模組120上，並經過DMD模組丨2〇反射後 成像於一光屏或者螢幕上。所述光機機身11〇包括一第一 承載壁112以及一第二承載壁...11.4.0所述第一承載壁us 與所述第二承載壁114大致垂直，且:在第—承載壁112上 設置有一空窗112a用以容置DMD模組120。所述第二承載 壁114用以承載光源元件150，且在所述第二承載壁114 上設置有用以通過光線的通光孔,（圖未示）。201100943 VI. Description of the Invention: [Technical Field] The present invention relates to a heat dissipation structure, and more particularly to a DMD heat dissipation structure and a projector using the same. [Prior Art] [0002] A digital micromirror device (hereinafter referred to as DMD) is an important digital optical device currently used in projectors, which reflects light through tens of thousands of tiny controllable lenses. Form a picture. The light from the projector in the projector illuminates the DMD and the temperature of the DMD rises. At the same time, the control circuit of the integrated ginger on the DMD generates a considerable amount of heat during operation to raise the temperature of the DMD. Excessive temperatures can reduce the life of the DMD and can even damage the DMD. For this reason, the heat dissipation fins are usually used to dissipate the DMD. However, the heat dissipation fins are not efficient in heat dissipation because the heat dissipation fins only dissipate heat through the heat transfer of the fins, and the number and size of the heat dissipation fins are affected. The limitation of the narrow space inside the projector makes the surface of the heat sink fin and the air contact small, and can not effectively dissipate heat. [Invention] [0003] In view of this, it is necessary to provide a DMD capable of effectively dissipating DjfD. The heat dissipation structure and the projector applying the DMD heat dissipation structure. [0004] A DMD heat dissipation structure includes a luminaire body, a DMD module, a heat conducting component, a fan, a light source component, and a 〆 guide bush. The DMD module is disposed on the illuminant body. One end of the heat conducting element is in close contact with the back of the DMD module. The fan is disposed on the side of the optical body of the DMD module and conforms to the other end of the heat conducting component. 098120052 Form No. A0101 Page 3 of 14 0982034105-0 201100943 The fan includes/air outlet. The light source assembly is disposed on the other side of the optical machine body adjacent to the fan, and the light source assembly is provided with a cooling air vent. The air guiding tube is disposed between the fan and the light source element, and one end opening is located at an air outlet of the fan, and the other end is open to a cooling air outlet of the light source assembly. [0006] [0007] A rear projector comprising a casing, a plurality of system fans. The projector further includes an MD heat dissipation structure as described above, the DMD heat dissipation structure is disposed inside the casing, and a first air outlet is respectively disposed on a sidewall of the fan and the light source component corresponding to the DMD heat dissipation structure on the casing And the second tuyere, the plurality of system fans _ set: = placed in the casing and is opposite to the second tuyere of the casing. Compared with the prior art, the DMD heat dissipation structure of the present invention and the projector for the same use the same fan to dissipate the DMD module and the light source component, thereby saving the heat dissipation fins used in the prior art for dissipating the DMD module. At the same time, the fan can accelerate the heat dissipation of the DMD module. In addition, the fan can be used to dissipate heat from the DMD module and the light source component at the same time. [Embodiment] Referring to Figures 1 and 2, a DMD heat dissipation structure 100 according to a preferred embodiment of the present invention is provided. The DMD heat dissipation structure 1 includes a optomechanical body 11 (), a DMD module 120, a heat conducting component 13A, a fan 14A, a light source component 150, and a flow guiding tube 160. The DMD module 120 is disposed on the optical body 110. One end of the heat conducting component 130 is in close contact with the back of the dmd module 120. The fan 140 is disposed on the side of the optical unit 110 opposite to the dmd module 120 and is adjacent to the other end of the heat conducting component 13 (). The fan 140 includes an air outlet 141. The light source component 098120052 Form No. A0101 Page 4 / 14 pages 0992034105-0 201100943 150 is disposed on the other side of the optomechanical body 11 邻近 adjacent to the fan Ι 4 ,, the light source assembly 15 5 A cooling air vent is provided (not shown). The air guiding tube 160 is disposed between the fan 140 and the light source element 15A, and has one end opening at the air outlet 14丨 of the fan 14〇, and the other end opening is opposite to the cooling air outlet of the light source assembly 150. . [0008] 光 The optical machine body 110 is internally provided with a plurality of optical components (such as a color wheel, an integrating column, a prism group, a mirror, and an output lens group) for modulating light (not shown) for directional propagation. The light emitted by the light source element 15 至 is sent to the DMD module 120 and reflected by the DMD module 〇 2 成像 to be imaged on a light screen or a screen. The locomotive body 11 includes a first carrier wall 112 and a second carrier wall 11 .4.0. The first carrier wall us is substantially perpendicular to the second carrier wall 114, and: An empty window 112a is disposed on the carrying wall 112 for receiving the DMD module 120. The second carrier wall 114 is configured to carry the light source component 150, and a light-passing aperture (not shown) for passing light is disposed on the second carrier wall 114.
[0009] G 所述MD模組120設置在所述朱機機身11〇上，並容置在 所述第一承載壁Π2的空窗lt2a内，且所述DMD模組120 的鏡面朝向所述光機機身110的内部，與所述鏡面相對的 另一側面朝向所所述光機機身110的外部。 [0010] 所述導熱元件130包括一導熱片132以及一導熱枉134， 所述導熱片132貼合在所述DMD模組120上與其鏡面一側 相對的另一侧’所述導熱柱134壓合在所述導熱片132上 。所述導熱片132採用導熱材料如導熱膏，導熱矽脂，散熱 油，導熱泥等材料製成’用以使導熱柱134與DMD模組12 0 的發熱表面良好的接觸從而有效傳導DMD模組120因發熱 098120052 表單編號A0101 第5頁/共14頁 0982034105-0 201100943 產生的熱量。 [0011] 所述風扇140t^置在所述朵地地a 7边先機機身110的第一承載壁112 外側，並與所述1)肋模％1外4 取土1^ ^ ，、、120相互對正。所述風扇140包 括一认 第〜承栽壁112上的外殼142以及設置在 外殼142内部的風機（ 及。又置在 下）。在所述外殼142上号·罟 有貫穿所述外殼142的進 置 乳1 ，在所述外殼142環鎖 所述進風口 142a的位置 ' 愿$成有複數沿所述進風口 142a 徑向設置的支撐臂144， 在所述支撐臂144的端部形成右 一支撐板146用以支撐 丨4有 ^ ^ Λ返風扇no的風機並緊密壓合在 ^^ V..134^ ^ 0- ¾ 〇 t. m ^^^^^ 殼142上且所述出風D 141的轴線與進風σ 142a的轴轉 大致垂直。所述風扇14Q的外殼U2、支接臂144及支撐 板146均私用導熱性良好的材料如鐵、銘、藉或者上述相 料的合金材料製成’從而將由導熱柱134傳導的熱量迅速 擴散至風扇140的外殼142、支撐臂144及支撐板146上， 旅通過風扇140的風機提高空氣流通速度從而加速散熱。 讦以理解’所述導_柱134與所述支撐板146之間可以設 董_導熱介面材料如：導熱膏導熱矽脂，散熱油，導熱泥等 從而提高導熱柱134與所述支撐板146之間的導熱效率。 此外，所述導熱柱134可以與所述支撐板146—體成型。 [0012] 所述光源元件150設置在所述光機機身110的第二承載壁 j 14上，用以提供光線。光源元件150—般採用高壓汞燈 或者鹵素燈，當在使用過程中會產生非常大的熱量，因 此在光源元件150上設置冷卻風口用以通過風扇140對光 源元件送風散熱才能保證光源元件150不會因為過熱而損 098120052 表箪編號A0101 第6頁/共14頁 0982034105-0 201100943 壞。 [0013] Ο 所述導流筒160為兩端開口四周封閉的管狀，其可以根據 不同的需求設計成不同的形狀，本實施方式中採用弧形 便於降低風阻。所述導流筒16〇所述設置在所述風扇14〇 及光源元件150之間，且包括一第一開口端162以及一第 二開口端164。所述導流管16〇的第一開口端162設置在 風扇140的出風口 141處並與所述出風口 141相連通，第 二開口端164與所述先源元件丨5〇的冷卻風口相對正。所 述導流管160將所述風扇14〇所產生的氣流導引至所述光 源元件150的冷卻風口處對所述光源元件15〇進行散熱。 所述導流管160的材料可是塑膠材料或者金屬材料。為了 防止導流管160錯位，可在所述導流管160的管體的外側 上設置固定塊166，通過所述固定塊166將所述導流管 160牢固的固定在所述光機機身110上。 [0014] Ο 使用時，DMD模組12〇所產生的為量通過導熱元件130傳 導至所述風扇140的外殼142、支推纟臂,144及支撐板146上 。通過風扇HO的風機使風扇140周圍的空氣加速流動， 從而帶走擴散至外殼142、支撐臂144及支撐板146上的 熱量。同時’由風扇14〇產生的氣流由其出風口 141流出 ，並經過導流筒160引導至光源元件150的冷卻風口中對 光源元件150進行散熱。因為，j)MD模組120的發熱量遠 遠小於光源元件150產生的熱量，所以，由DMD模組120 產生的熱量而導致風扇140氣流溫度的上升是非常有限的 ’因此’對DMD模組12〇進行冷卻後的氣流依然可以對光 源元件150進行有效的散熱。本發明通過同一風扇140對 098120052 表單煸號A0101 第7頁/共14頁 0982034105-0 201100943 DMD模組120及光源元件150進行散熱，可以節省先前技 術中用以對DMD模組120進行散熱的散熱鰭片’同時通過 風扇140對DMD模組120的進行主動散熱的效果優於採用 散熱鰭片的被動散熱的效果。此外’可以提高風扇140的 使用效率。 [0015] 可以理解，設置在所述風扇140及DMD模組120之間的導 熱柱134的結構可以根據不同的需求而不同，只要導熱枉 134能與所述風扇140有效接觸且不影響風扇14〇進風口 142a的進風效果即可，如所述導熱柱134可以是環狀排列 的柵格狀。 [0016] 請參閱圖3，本發明較佳實施方式提供的一種應用上述 DMD散熱結構100的投影機200。所述投影機2〇〇 ’包括一 機殼210，複數系統風扇220以及上述的DMD散熱結構1〇〇 。所述DMD散熱結構100設置在所述機殼210内部。在所 述機殼210上對應所述風扇140及光源组件150的侧壁上 分別設置有第一風口 212及第二風口 214。所述複數系統 風扇220設置在所述機殼210内並與所述機殼210的第二 風口 214相對正。使用時，空氣從第一風口 212進入所述 機殼210内，一部分通過風扇140對DMD模組120及光源元 件150散熱，另一部分在所述系統風扇220的作用下對整 個投影機200的内部系統進一步散熱，從而可有效降低投 影機200内部的工作溫度，保證投影機200正常工作。 [00Π] 综上所述，本發明符合發明專利要件，爰依法提出專利 申請。惟，以上所述者僅為本發明之較佳實施方式’本 發明之範圍並不以上述實施方式為限，舉凡熟悉本案技 098120052 表單編號 A0101 第 8 頁/共 Η 頁 0982034105-0 201100943 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】 [0018] 圖1係本發明提供的一種DMD散熱結構的立體分解圖。 [0019] 圖2係圖1中DMD散熱結構的組裝圖。 [0020] 圖3係應用圖1中的DMD散熱結構的投影機示意圖。 【主要元件符號說明】 DMD散熱結構 100 機身 110 第一承載壁 112 空窗 112a 第二承載壁 114 DMD模組 120 導熱元件 130 導熱片 132 導熱柱 134 風扇 140 外殼 142 進風口 142a 支撐臂 144 支撐板 146 光源元件 150 導流筒丨 160 第一開口端 162 第二開口端 164 固定塊 166 投影機 200 機殼 210 系統風扇 220 第一風口 212 第二風口 214 [0021] 〇 〇 0982034105-0 098120052 表單編號A0101 第9頁/共14頁[0009] The MD module 120 is disposed on the frame body 11〇 and is received in the empty window lt2a of the first bearing wall 2, and the mirror surface of the DMD module 120 faces The other side of the illuminator body 110 facing the mirror surface faces the outside of the optomechanical body 110. [0010] The heat conducting component 130 includes a heat conducting sheet 132 and a heat conducting strip 134. The heat conducting sheet 132 is attached to the other side of the DMD module 120 opposite to the mirror side thereof. It is fitted on the heat conductive sheet 132. The heat conducting sheet 132 is made of a heat conductive material such as a thermal conductive paste, a thermal grease, a heat dissipating oil, a thermal conductive mud or the like to enable the thermal conductive column 134 to be in good contact with the heat generating surface of the DMD module 120 to effectively conduct the DMD module. 120 due to heat 098120052 Form No. A0101 Page 5 / Total 14 pages 0992034105-0 201100943 Heat generated. [0011] The fan 140t is disposed outside the first carrying wall 112 of the front fuselage 110 of the ground a7, and is taken from the 1) rib mold %1 outer 4 120 is aligned with each other. The fan 140 includes a housing 142 on the first receiving wall 112 and a fan (and further disposed below) disposed inside the housing 142. On the outer casing 142, the inlet milk 1 is inserted through the outer casing 142, and the outer casing 142 is in a position to lock the air inlet 142a. The support arm 144, at the end of the support arm 144, forms a right support plate 146 for supporting the fan of the fan 4 and returning to the fan no and is tightly pressed at ^^V..134^^ 0- 3⁄4 〇t. m ^^^^^ The casing 142 and the axis of the outlet D 141 are substantially perpendicular to the axis of the inlet σ 142a. The outer casing U2, the support arm 144 and the support plate 146 of the fan 14Q are all made of a material having good thermal conductivity such as iron, inscription, or alloy material of the above-mentioned phase material, thereby rapidly dissipating heat conducted by the heat conducting column 134. To the outer casing 142 of the fan 140, the support arm 144 and the support plate 146, the wind turbine traveling through the fan 140 increases the air circulation speed to accelerate heat dissipation. In order to understand that between the guide pillar 134 and the support plate 146, a heat conductive interface material such as a thermal grease thermal grease, a heat dissipation oil, a thermal conductive mud or the like may be disposed to improve the heat conduction column 134 and the support plate 146. Thermal efficiency between. Additionally, the thermally conductive post 134 can be integrally formed with the support plate 146. [0012] The light source component 150 is disposed on the second carrier wall j 14 of the optomechanical body 110 for providing light. The light source component 150 is generally a high-pressure mercury lamp or a halogen lamp. When a very large amount of heat is generated during use, a cooling air port is disposed on the light source component 150 for cooling the light source component by the fan 140 to ensure that the light source component 150 is not Will be damaged due to overheating 098120052 Form No. A0101 Page 6 / Total 14 pages 0992034105-0 201100943 Bad. [0013] The guide tube 160 is a tubular shape closed at both ends of the opening, and can be designed into different shapes according to different requirements. In this embodiment, an arc shape is adopted to facilitate the reduction of wind resistance. The draft tube 16 is disposed between the fan 14 and the light source component 150 and includes a first open end 162 and a second open end 164. The first open end 162 of the draft tube 16 is disposed at the air outlet 141 of the fan 140 and communicates with the air outlet 141. The second open end 164 is opposite to the cooling air port of the source element 丨5〇. positive. The draft tube 160 directs the airflow generated by the fan 14 to the cooling tuyere of the light source element 150 to dissipate the light source element 15A. The material of the draft tube 160 may be a plastic material or a metal material. In order to prevent the flow guiding tube 160 from being displaced, a fixing block 166 may be disposed on the outer side of the tube body of the draft tube 160, and the guiding tube 160 is firmly fixed to the optical machine body through the fixing block 166. 110 on. [0014] Ο In use, the amount generated by the DMD module 12 is transmitted through the heat conducting element 130 to the outer casing 142, the push arm 144, and the support plate 146 of the fan 140. The air around the fan 140 is accelerated by the fan of the fan HO, thereby taking away heat that has spread to the outer casing 142, the support arm 144, and the support plate 146. At the same time, the air flow generated by the fan 14 is discharged from its air outlet 141, and is guided to the cooling air port of the light source element 150 through the guide cylinder 160 to dissipate heat from the light source element 150. Because the heat generated by the j) MD module 120 is much smaller than the heat generated by the light source component 150, the heat generated by the DMD module 120 causes the temperature of the airflow of the fan 140 to be very limited, so the DMD module is The cooled airflow of 12 依然 can still effectively dissipate heat from the light source element 150. The heat dissipation of the DMD module 120 and the light source component 150 by the same fan 140 to the 098120052 form nickname A0101 page 7/14 page 0982034105-0 201100943 can save the heat dissipation of the DMD module 120 in the prior art. The effect of the fins 'actively dissipating the DMD module 120 by the fan 140 at the same time is better than the passive heat dissipation using the fins. In addition, the efficiency of use of the fan 140 can be improved. [0015] It can be understood that the structure of the heat conducting column 134 disposed between the fan 140 and the DMD module 120 may be different according to different requirements, as long as the heat conducting jaw 134 can effectively contact the fan 140 and does not affect the fan 14 The air inlet effect of the air inlet 142a may be sufficient, for example, the heat conducting column 134 may be in the shape of a grid arranged in an annular shape. Referring to FIG. 3, a projector 200 using the above-described DMD heat dissipation structure 100 is provided by a preferred embodiment of the present invention. The projector 2'' includes a casing 210, a plurality of system fans 220, and the above-described DMD heat dissipation structure 1''. The DMD heat dissipation structure 100 is disposed inside the casing 210. A first tuyere 212 and a second tuyere 214 are respectively disposed on the side wall of the casing 210 corresponding to the fan 140 and the light source assembly 150. The plurality of system fans 220 are disposed within the casing 210 and are aligned with the second tuyere 214 of the casing 210. In use, air enters the casing 210 from the first tuyere 212, a portion of the heat is dissipated to the DMD module 120 and the light source component 150 by the fan 140, and the other portion is internally operated by the system fan 220 to the entire interior of the projector 200. The system further dissipates heat, thereby effectively reducing the operating temperature inside the projector 200 and ensuring that the projector 200 operates normally. [00] In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. However, the above description is only a preferred embodiment of the present invention. The scope of the present invention is not limited to the above embodiments, and is familiar with the present technology. 098120052 Form No. A0101 Page 8 / Total Page 0982034105-0 201100943 Equivalent modifications or variations made by persons in accordance with the spirit of the invention are intended to be included within the scope of the following claims. BRIEF DESCRIPTION OF THE DRAWINGS [0018] FIG. 1 is an exploded perspective view of a DMD heat dissipation structure provided by the present invention. 2 is an assembled view of the DMD heat dissipation structure of FIG. 1. 3 is a schematic view of a projector applying the DMD heat dissipation structure of FIG. 1. [Main component symbol description] DMD heat dissipation structure 100 Body 110 First carrier wall 112 Empty window 112a Second carrier wall 114 DMD module 120 Thermally conductive element 130 Thermal pad 132 Thermally conductive column 134 Fan 140 Housing 142 Air inlet 142a Support arm 144 Support Plate 146 light source element 150 guide tube 丨 160 first open end 162 second open end 164 fixed block 166 projector 200 housing 210 system fan 220 first tuyere 212 second tuyere 214 [0021] 〇〇0982034105-0 098120052 form No. A0101 Page 9 of 14