201237317 六、發明說明： 【發明所屬之技術領域】 本發明係關於一種燈具，尤其是一種能夠順利導入 氣.流以進行散熱作業的燈具。 【先前技術】 S知燈具主要具有一發光模組，該發光模組可藉由 一發光元件（如燈泡等）投射出燈光，以達到照明之目的 。然而，當該發光元件因通電而產生高熱時，倘若該習知 燈具未具有良好的散熱措施，即可能導致該習知燈具無法 正常運作並降低其使用壽命。因此，習知燈具亦可另設置 如政熱籍片或政熱風扇等構件，以避免該發光模組於實際 運作過程中產生高熱而損壞。 舉例而言，如第1圖所示，係揭示一種常見之具有 散熱鰭片及散熱風扇的習知燈具9，該燈具9包含一外殼 91、一發光模組92、一散熱鰭片93及一散熱風扇94。該 外殼91係為可透光的一中空殼體；該發光模組92結合於 該外殼91内部，以便提供照明之功能；該散熱鰭片93結 合該發光模組92，以便吸收該發光模組92因通電所產生 之熱量；該散熱風扇94結合該散熱鰭片93，用以導入外 界氣流進入該外殼91並通過該散熱鰭片93，使該散熱鰭 片93可迅速地與氣流進行熱交換作用’以降低該發光模 組92之溫度。 藉由上述習知燈具9之結構特徵得知，習知燈具9 之發光模組92要能夠長時間正常的運作，必須仰賴該散 201237317 熱風扇94及該散熱鰭片93之散熱效能；因此，該散熱風 扇94及該散熱鰭片93之散熱效果可否提升，仍必須視該 散熱風扇94可否順利導入外界氣流進入該外殼91為主要 原則。 … 然而，習知燈具9於安裝使用時，可能須配合使用 ^需求搭配一外罩裝設於一預定位置，或者係嵌入於輕鋼 架或裝潢隔層之天花板的安裝孔内。惟當該燈具9安裝於 該外罩内側或嵌入該安裝孔内側後，該燈具9之外殼91 與該外罩或安裝孔之間不易調整出適當的間距，亦即該外 殼91與該外罩或安裝孔孔壁之間的間距可能過小，導致 該散熱風扇94所導入之外界氣流不易通過該燈具9之外 殼91與該外罩或安裝孔孔壁之間；另外，更由於該外殼 91之外側周面並無任何能夠用以導引氣流或增加氣流流 置的結構設計，因此，將可能造成該散熱風扇94無法順 利導入外界氣流進人料殼9卜令該散減扇94及該散 熱鰭片93所能提供的散熱效果降低，使該發光模組％容 易產生過熱情形而損壞，故無法提升該習知燈具9之使用 壽命。 【發明内容】 本發明主要目的係提供一種燈具，使該燈具於安裝 使用後’可順利導人外界氡流進人該燈具内部，以提升整 體散熱效果，確保該燈具能夠正常運作。 根據本發明燈具，係包含一外殼、一散熱模組及一 發光模組。料殼係具有—人風雜—纽部，且該外殼 201237317 之外周壁另設有一導流通道；該散熱模組係設置於該外殼 之内部，且該散熱模組具有一散熱風扇；該發光模組係設 置於該外殼之内部；其中該散熱風扇透過該外殼之導流通 道導入氣流通過該入風部至該外殼内部，用以對該發光模 組進行散熱。藉此，以達到提供散熱效果，並確保該燈具 能夠正常運作等諸多功效。 所述該導流通道係位於該入風部及該出風部之間。 藉此’有效防止該入風部及該出風部因過度接近而產生奮 流，確保氣流之流通順暢，以達到提升導流效果之功效。 所述該導流通道具有一第一端及一第二端，該第一 端係接鄰該外殼之入風部’該第二端係遠離該入風部。藉 此，該散熱風扇所導引之氣流可先經由該第二端進入該導 流通道，以便該導流通道導引氣流經由該第一端通過該入 風部，確保氣流可被該導流通道更順利地導入至該外殼内 部’以達到提升進風量之功效。 所述該導流通道之第一端與該入風部相對。藉此， 該散熱風扇所導引之氣流可更快速且精確地經由該第〆端 通過該入風部，以達到更進一步提升進風量之功效。 ★所述該散賊扇具有—㈣基準線，該導流通道之 第-端朝向第二端的延伸方向係與該軸向基準線相對應； 八中該導⑻通道之第—端朝向第二端的延伸方向可與該軸 向基準線平行；或者料流通道之第1朝向第二端的延 =方向與姉向鱗料有1斜肖度，職斜角度料 〜Μ。稭此，該導流通道更可搭配·造型之外殼或 不同位置Μ風部及出風部等條件’進而供所屬領域之技 7317 外升進風量及導流效果等力二導-通 所述該導流通道係為形成於 道，以達到更進 凹槽，錢凹槽之二端係分別;^殼之外周壁的數個 此，以有效擴充導流空間，及該第二端。藉 功效。 達】有效增加整體進風量之 所述該導流通道之么 _ 此：_結構設計將具有更 =:， 一殼體包含-第-殼體及-第二殼體，該第 IS了成一第二接合部，另-端設有-電連 接合‘構成接合部係結合該第二殼體之第二 二广★。藉此，以方便安裝該散熱模組及該 發先板組’進而相提物裝便雜之功效。 …所述該人風料柄第—舰及該第二殼體之間所 形成的數個槽孔風部係由貫穿該第-殼體之外周壁 的數個透孔所構成。藉此，使該人風部丨及該出風部可提 供更多氣流流奴管道’以達到增加進風量之功效。 所述該散熱核組之散熱風扇另結合一散熱韓片，該 散熱鰭片結合於該第一殼體及該第二殼體之間。藉此，該 散熱風扇更可搭配該散熱鰭片用以降低該發光模組之實際 運作溫度’以達到提升發光模組的使用壽命之功效。 所述該散熱鰭片之外周緣形成數個固定片，各該固 定片固定於該第一殼體及該第二殼體之間，該第一殼體之 第一接合部外周緣形成一肩部，各該固定片、第一接合部 201237317 及肩部彼此之間形成連通至該外殼内部的氣隙。藉此，該 氣隙可供氣流流通，使該散熱鰭片即使組褒於該第一殼體 及該第二殼體之間，但外界氣流仍可經由各該氣隙進入該 外殼内部，以確保該入風部之進風功能不受影響，進而達 到提升進風效果之功效。 所述該發光模組包含一發光元件及—控制基板，該 控制基板係電性連接該發光元件及該電連接部，其中該發 光元件係對位該外殼之透光部。藉此，以達到具有更佳之 發光效果、提升使用壽命及省電等功效。 所述該外殼另結合一外罩，該外罩與該外殼之間具 有導流空間，該導流通道位於該導流空間。藉此，使該導 流空間得以有效擴充’以進―步提賴導流通道所具有之 導流功能。 【實施方式】 為讓本發明之上述及其他目的、特徵及優點能更明 顯易懂’下文特舉本發明之較佳實施例，並配合所附圖式 ，作詳細說明如下： 清參照第2 & 3圖所示，本發明燈具至少包含一外 设卜-散熱模組2及-發賴、組3。該外殼丨係用以供 該散熱她2及該發光觀3結合；該散賴組2設置於 該外设1㈣；該發光模組3結合該散熱模組2且同樣位 於該外殼1内部。 該外殼1可為一中空殼體或以數個殼體相互對組所 構成，其係以可供相關構件組裂於該外殼1内部為原則。 201237317 該外殼1具有可透光功能’以便該發光模組3可經由該外 殼1投射燈光；又，該外殼1另設有一入風部U、一出 風部12及一導流通道13，其中該入風部η及該出風部 12經由該外殼1之外周壁連通至該外殼1内部，該導流 通道13則設置於該外殼1之外周壁。 本實施例中，該外殼1係包含一第一殼體la及一第 二殼體lb。該第一殼體la之一端設有一透光部，另一 端則形成一第一接合部15 ;該第二殼體lb之一端形成一 第二接合部16,另一端則設有一電連接部17;藉此，該 第一殼體la之第一接合部15及該第二殼體lb之第二接 合部16可相互對合構成該外殼〗，以提升整體組裝便利 性。又，該入風部11係為該第一殼體la及該第二殼體 lb之間所形成的數個槽孔；該出風部12設於該第一殼體 la，且該出風部12係由貫穿該第一殼體la之外周壁的數 個透孔所構成，使該入風部11及該出風部可提供更多 氣流流通之管道，該導流通道13則形成於該第一殼體h 之外周壁，以便導引氣流經由該導流通道13進入該入風 部η，且該導流通道13係為各種能夠導引氣流及供氣流 流通的結構設計’例如：凹槽或導溝等。 該散熱模組2係設置闕核丨之㈣，且該散熱 模組2至少具有-散熱風扇2卜該散熱風扇21可選擇為 軸流式風扇或離^式風扇，較蝴選自—減核扇；又 ，該散熱風扇21可搭配如螺絲等之固定元件（f)結合一 散熱鰭片22，該散埶缺w 、皆& ,, ^ ° 口 狀.、、…日片22係由可導熱之材質所製成， 藉此，以提升該散熱模組2之散熱效果。 201237317 本實施例中，該散熱鰭片22之外周緣係形成數個固 疋片221，各該固定片221可搭配如螺絲等之固定元件（ F)而被鎖固於該第一殼體la及該第二殼體lb之間，且 各該固定片221彼此之間皆具有一間距；又，該外殼1可 於鄰近該入風部11之部位形成一肩部18 ,如圖所示之實 施例中，該肩部18係形成於該第一殼體la之第一接合部 15的外周緣；藉此，當該散熱鰭片22結合於該外殼i内 部後，各該固定片221、第一接合部15及肩部18彼此之 間可相對形成連通至該外殼丨内部的氣隙G，該氣隙G 係可供氣流流通，使該散熱鰭片22即使組裝於該第一殼 體la及該第二殼體lb之間，但外界氣流仍可經由該氣隙 G進入該外殼1内部’以確保該入風部u之進風功能不 受影響’進啸升進風效果；又，錄減扇21亦可搭 配如螺絲等之固定it件⑻與該散熱則22相互結合， 以便導引氣流通過該散熱則22，使該散熱則22可迅 速地與氣流進行熱交換作用。 該發光模組3包含-發光元件31及—控制基板％。 該發光元件31可為發光二極體（LED)、燈泡或其他具有 相同發光魏之構件；雜職板32係紐連接該發光 元件31，以便控制該發光元件31產生燈光。 本實施例中，該發光元件31係對位該外殼丨之透光 部14 ’以方便經由該透光部14投射燈光，麵達到更佳 之發光效果，且該發光元件31係為發光二極體以達到 提升使用壽命及省電之效果；該㈣基板32係電性連接 該外殼1之電連接部17，且該控制基板32係貼接於該散 201237317 熱模組2之散熱鰭片22,以方便該散熱鰭片22可更有效 地降低該發光模組3實際運作時之溫度，達到更佳之散熱 效果。 請參照第3 ®所示，本發明燈具於實際使用時，該 外殼1可搭配-外罩4裝設於如牆㈣天花㈣地點之燈 座（亦可省略該外罩4而直接將該燈具安裝於預定地點， 如其他預定地點所設置之安裝孔等），其中該外罩4的内 周壁與該外殼1的外周壁之間具有導流空間，該導流通道 13位於該導流空間，使該導流空間得以擴充；又，該外 殼1之電連接部17係透過該外罩4與一般供電系統電性 連接，以提供電源至該發光模組3之控制基板32，進而 控制該發光元件31產生燈光，該發光元件31之燈光係鋏 由該透光部14投射至外界。 藉由剷揭之結構特徵，本發明燈具的主要特點在 於：當本發明燈具藉由該外罩4裝設於一預定位置，或表 如該燈具係省略該外罩4而直接嵌入於輕鋼架或裝潢隔詹 之天花板的安裝孔内時，如第4圖所示，基於本發明燈具 之導流通道13的結構設計，當該散熱風扇21欲導入外界 氣流通過該外殼1與該外罩4或安裝孔孔壁之間時，仍圩 藉由該外殼1之外周壁所設置的該導流通道13’得以宥 效擴充該外殼1與該外罩4或安裝孔孔壁之間的間隙，以 增加該導流空間之容積’並配合該導流通道13所具有么 導流功能’用以供外界氣流可依序經由該導流通道13及 該入風部11進入至該外殼1内部，使該散熱風扇21可更 為順利地導入外界氣流進入該外殼1内部並通過該散熱錄 201237317 片22，令该散熱鰭片22所吸收之該發光模組3的熱能可 迅速地與外界氣流進行熱交換侧，以降低該發光模組3 之溫度，並經由該出風部12將該氣流再次排至外界空 間因此，本發明燈具確可利用該導流通道13之結構設 °十，以提升該散熱模組2之散熱效果，而可更有效防止該 發光模組3產生過熱情形，進而提升本發明燈具之使用壽 命。 藉由上述本發明燈具的結構設計概念，本發明亦可 進一步包含如下所述之至少一附屬結構特徵或其組合，使 本發明燈具的功能更趨近於完善，其中： "月再參照第4圖所示，本發明燈具之導流通道I]較 佳係位於該入風部11及該出風部12之間；藉此，該導流 通道13可用以區隔該入風部u及該出風部12，以有效 防止該入風部11及該出風部12過度接近，使該散熱風扇 21經由該入風部u所導入之氣流與經由該出風部12所 導出之氣流兩者之間不易產生紊流，確保氣流之流通順暢 ;再者，更可確保該散熱風扇21在導入外界氣流的過程 中，外界氣流可事先經由該導流通道13通過該入風部u ，並完成散熱作用後自該出風部12排出；整體而言，藉 由該技術特徵’以達到提升導流效果之功效。 請再參照第4圖所示’本發明燈具之導流通道13較 佳具有一第一端131及一第二端132，該第—端131係接 鄰該外殼1之入風部11，且該第一端131更可進一步與 該入風部11相對；另外’該第二端132係遠離該入風部 11 ’如圖所示之實施例中’該第二端132係朝向該出風部 —12 — 201237317 12之方向；藉此，該散熱風扇21在導入外界氣流的過程 中’外界氣流可先經由該第二端132進入該導流通道13 ’以便該導流通道13可導引氣流經由該第一端131通過 該入風部11，確保氣流可被該導流通道13更順利地導弓丨 進入至該外殼1内部，藉由該技術特徵’以達到提升進風 量之功效。 請再參照第4圖所示’本發明燈具之散熱風扇21係 具有一軸向基準線（L) ’前揭該導流通道13之第一端 131朝向第二端132的延伸方向較佳係與該軸向基準線（ L)相對應；舉例而言，該第一端131朝向第二端132的 延伸方向與該軸向基準線（L)相對應係意指：該第—端 131朝向第二端132的延伸方向與該軸向基準線（L)平 行；或者，在該外殼i之外周壁為弧面或其他不規則形狀 時，該第一端131朝向第二端132的延伸方向與該軸向基 準線（L)具有-偏斜角度（該偏斜減之大小係、為所屬 領域之技術人員依該外殼丨之造型或入風部n及出風部 12位置作適當的調整’例如5。〜45。等）；藉此，使該導 流通道13可搭配不同造型之外殼i或不同位置之入風部 11及出風部12等條件’ _整岭置位置更為適當的導 流通道13 ’以達収進—步提升進風量及導流效果等加 乘功效。 謂丹筝照第4圖所示 士 叫年仙·遇逗u較佳係為形成 於該外殼1之外周壁的數個凹槽，各該凹槽之二端係分况 為該第端131及該第二端132 ;另以該散熱風扇u之 軸向基準線（L)為基準’該導流通道13之各凹槽的捏 201237317 2面形狀較佳係為弧形；#此，當本發明燈具藉由該外 料於—預定位置或直減人—安裝孔時，藉由該技 術特徵’將可進-步增加料殼！與料罩4或安裝孔孔 壁之間的導流㈣，以達财效增加整體進風量之功效。 再者，當該導流通道13之各凹槽的徑向截面係為孤形時 ，則該導流通道13的導流效果更佳。 綜上所述，本發明燈具於安裝使用時，藉由該外殼i 之導流通道13結構設計，將能觸料人外界氣流進入 該外殼1内部，使該散熱模組2可提供足夠的進風量對該 發光模組3騎散熱，以達到提供整體散熱效果，並確保 該燈具能夠正常運作等諸多功效。 ” 雖然本發明已利用上述較佳實施例揭示，然其並非 用以限定本發明，任何熟習此技藝者在不脫離本發明之精 神和範圍之内，相對上述實施例進行各種更動與修改仍屬 本發明所保護之技術範轉，因此本發明之保護範圍當視後 附之申請專利範圍所界定者為準。 田 【圖式簡單說明】 第1圖：習知燈具之組合剖視圖。 第2圖：本發明燈具之立體分解圖。 第3圖：本發明燈具之組合剖視圖。 第4圖：本發明燈具之使用狀態參考圖。 201237317 【主要元件符號說明】 〔本發明〕 1 外殼 la 第一殼體 lb 第二殼體 11 入風部 12 出風部 13 導流通道 131 第一端 132 第二端 14 透光部 15 第一接合部 16 第二接合部 17 電連接部 18 肩部 2 散熱模組 21 散熱風扇 22 散熱鰭片 221 固定片 3 發光模組 31 發光元件 32 控制基板 4 外罩 L 軸向基準線 F 固定元件 G 氣隙 〔習知〕 9 燈具 91 外殼 92 發光模組 93 散熱鰭片 94 散熱風扇 —15 —201237317 VI. Description of the Invention: TECHNICAL FIELD OF THE INVENTION The present invention relates to a luminaire, and more particularly to a luminaire capable of smoothly introducing a gas stream for heat dissipation. [Prior Art] The S-light fixture mainly has a light-emitting module, and the light-emitting module can project a light by a light-emitting element (such as a light bulb) to achieve the purpose of illumination. However, when the light-emitting element generates high heat due to energization, if the conventional lamp does not have good heat-dissipating measures, the conventional lamp may not operate normally and its service life may be lowered. Therefore, the conventional lamp can also be provided with components such as a political hot film or a political heat fan to prevent the light-emitting module from being damaged by high heat during actual operation. For example, as shown in FIG. 1 , a conventional lamp 9 having a heat dissipating fin and a cooling fan is disclosed. The lamp 9 includes a casing 91 , a lighting module 92 , a heat sink fin 93 and a Cooling fan 94. The housing 91 is a hollow housing that is permeable to light; the lighting module 92 is coupled to the interior of the housing 91 to provide a function of illumination; the heat dissipation fin 93 is coupled to the illumination module 92 to absorb the illumination module. The heat generated by the group 92 is combined with the heat dissipation fins 93 for introducing external airflow into the outer casing 91 and passing through the heat dissipation fins 93, so that the heat dissipation fins 93 can be quickly heated with the airflow. The exchange function 'to lower the temperature of the light-emitting module 92. It is known from the above-mentioned structural features of the conventional lamp 9 that the light-emitting module 92 of the conventional lamp 9 must be able to operate normally for a long time, and must rely on the heat dissipation performance of the 201237317 hot fan 94 and the heat-dissipating fin 93; The heat dissipation effect of the heat dissipation fan 94 and the heat dissipation fins 93 can be improved. It is still necessary to consider whether the heat dissipation fan 94 can smoothly introduce external airflow into the outer casing 91. ... However, conventional lamps 9 may need to be used in conjunction with a housing to be installed in a predetermined position, or embedded in a mounting hole in a ceiling of a light steel frame or decorative compartment. However, when the luminaire 9 is mounted on the inside of the cover or embedded in the inside of the mounting hole, it is difficult to adjust the proper spacing between the outer casing 91 of the luminaire 9 and the outer cover or the mounting hole, that is, the outer casing 91 and the outer cover or the mounting hole. The spacing between the walls of the holes may be too small, so that the airflow introduced by the cooling fan 94 is not easily passed between the outer casing 91 of the lamp 9 and the wall of the outer casing or the mounting hole; in addition, the outer peripheral surface of the outer casing 91 is There is no structural design that can be used to guide the airflow or increase the flow of the airflow. Therefore, it is possible that the cooling fan 94 cannot smoothly introduce the external airflow into the casing 9 to cause the dissipation fan 94 and the heat dissipation fin 93. The heat dissipation effect that can be provided is reduced, and the light-emitting module is easily damaged by overheating, so that the service life of the conventional lamp 9 cannot be improved. SUMMARY OF THE INVENTION The main object of the present invention is to provide a lamp that allows the lamp to be smoothly introduced into the interior of the lamp after installation and use to improve the overall heat dissipation effect and ensure that the lamp can operate normally. The lamp according to the present invention comprises a casing, a heat dissipation module and a lighting module. The heat dissipation module is disposed inside the outer casing, and the heat dissipation module has a heat dissipation fan; the light emission is provided on the outer peripheral wall of the outer casing 201237317; The module is disposed inside the casing; wherein the cooling fan introduces airflow through the air inlet portion into the casing through the air guiding channel of the casing to dissipate heat from the lighting module. In this way, it can achieve many functions such as providing heat dissipation and ensuring that the lamp can operate normally. The flow guiding channel is located between the air inlet portion and the air outlet portion. Therefore, it is effective to prevent the air inlet portion and the air outlet portion from being excessively approached, thereby ensuring smooth flow of the airflow, thereby achieving the effect of improving the diversion effect. The flow guiding channel has a first end and a second end, and the first end is connected to the air inlet portion of the outer casing. The second end is away from the air inlet portion. Thereby, the airflow guided by the cooling fan can first enter the guiding channel through the second end, so that the guiding channel guides the airflow through the air inlet portion through the first end, thereby ensuring that the airflow can be guided by the airflow. The passage is smoothly introduced into the inside of the casing to achieve the effect of increasing the amount of air intake. The first end of the flow guiding channel is opposite to the air inlet portion. Thereby, the airflow guided by the cooling fan can pass through the air inlet portion through the first end more quickly and accurately, so as to further improve the air intake amount. The thief fan has a (four) reference line, and the extending direction of the first end of the guiding channel toward the second end corresponds to the axial reference line; the eighth end of the guiding (8) channel faces the second The direction of extension of the end may be parallel to the axial reference line; or the direction of the first direction of the flow channel toward the second end is 1 oblique to the direction of the squall, and the angle of inclination is ~ Μ. In this case, the flow guiding channel can be matched with the shape of the casing or the hurricane portion and the outlet portion of different positions, and further, the technology of the field 7317, the external air volume and the diversion effect, etc. The flow guiding channel is formed on the track to reach a further groove, and the two ends of the money groove are respectively; a plurality of outer peripheral walls of the shell are used to effectively expand the flow guiding space, and the second end. Borrow the effect.达 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” ” The second joint portion is provided with an electric connection constituting a second joint of the second casing. Thereby, it is convenient to install the heat dissipating module and the hair plate group, and the effect of the object is mixed. The plurality of slotted air portions formed between the human air damper first ship and the second casing are formed by a plurality of through holes penetrating the outer peripheral wall of the first casing. Thereby, the airflow portion and the air outlet portion can provide more airflow passage pipes to achieve the effect of increasing the air intake amount. The heat dissipation fan of the heat dissipation core group is further combined with a heat dissipation fin, and the heat dissipation fin is coupled between the first housing and the second housing. Therefore, the heat dissipation fan can be matched with the heat dissipation fin to reduce the actual operating temperature of the light-emitting module to achieve the effect of improving the service life of the light-emitting module. The outer peripheral edge of the heat dissipating fin is formed with a plurality of fixing pieces, each of the fixing pieces is fixed between the first housing and the second housing, and a shoulder of the first engaging portion of the first housing forms a shoulder And each of the fixing piece, the first joint portion 201237317 and the shoulder portion form an air gap communicating with the inside of the outer casing. Thereby, the air gap is permeable to the airflow, so that the heat dissipating fins are evenly disposed between the first casing and the second casing, but the external airflow can enter the inside of the casing through the air gaps, Ensure that the air intake function of the air inlet is not affected, thereby improving the effect of the air intake. The light emitting module includes a light emitting component and a control substrate electrically connected to the light emitting component and the electrical connecting portion, wherein the light emitting component is aligned with the light transmitting portion of the outer casing. In this way, it can achieve better luminous effects, improved service life and power saving. The outer casing is further combined with a casing, and the outer casing and the outer casing have a flow guiding space, and the guiding channel is located in the guiding space. Thereby, the conduction space is effectively expanded to further enhance the flow guiding function of the flow guiding channel. The above and other objects, features and advantages of the present invention will become more <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; As shown in the figure 3, the lamp of the present invention comprises at least one peripheral-heat-dissipating module 2 and - slap, group 3. The housing is used for the heat dissipation 2 and the illuminating view 3; the scatter group 2 is disposed on the peripheral 1 (4); the illuminating module 3 is coupled to the heat dissipation module 2 and is also located inside the housing 1. The outer casing 1 may be a hollow casing or a plurality of casings arranged in pairs, which is based on the principle that the associated component group is cracked inside the casing 1. 201237317 The housing 1 has a light-transmissive function for the light-emitting module 3 to project light through the housing 1; further, the housing 1 is further provided with an air inlet portion U, an air outlet portion 12 and a flow guiding channel 13, wherein The air inlet portion η and the air outlet portion 12 communicate with the inside of the outer casing 1 via the outer peripheral wall of the outer casing 1, and the flow guiding passage 13 is disposed on the outer peripheral wall of the outer casing 1. In this embodiment, the outer casing 1 includes a first casing 1a and a second casing lb. One end of the first housing 1a is provided with a light transmitting portion, and the other end is formed with a first joint portion 15; one end of the second shell lb forms a second joint portion 16, and the other end is provided with an electrical connection portion 17 Thereby, the first joint portion 15 of the first casing 1a and the second joint portion 16 of the second casing lb can be mutually coupled to form the outer casing to improve the overall assembly convenience. Moreover, the air inlet portion 11 is a plurality of slots formed between the first housing 1a and the second housing lb; the air outlet portion 12 is disposed in the first housing 1a, and the air outlet portion The portion 12 is formed by a plurality of through holes penetrating through the outer peripheral wall of the first casing 1a, so that the air inlet portion 11 and the air outlet portion can provide a conduit for more airflow, and the flow guiding passage 13 is formed in The outer peripheral wall of the first casing h is arranged to guide the airflow into the air inlet portion η via the flow guiding passage 13, and the guiding channel 13 is designed for various structures capable of guiding the airflow and the airflow. For example: Grooves or guide grooves, etc. The heat dissipation module 2 is provided with (4), and the heat dissipation module 2 has at least a cooling fan 2, and the cooling fan 21 can be selected as an axial fan or an off-fan fan. In addition, the heat dissipating fan 21 can be combined with a fixing member (f) such as a screw to couple a heat dissipating fin 22, and the diverging, wand, &, ^ ° mouth shape, ..., the film 22 is composed of The heat conductive material is used to improve the heat dissipation effect of the heat dissipation module 2. In this embodiment, a plurality of fixing dies 221 are formed on the outer periphery of the heat dissipating fins 22, and each of the fixing pieces 221 can be locked to the first housing with a fixing component (F) such as a screw. And the second housing lb, and each of the fixing pieces 221 has a spacing between each other; further, the housing 1 can form a shoulder 18 adjacent to the air inlet portion 11, as shown in the figure In the embodiment, the shoulder portion 18 is formed on the outer periphery of the first joint portion 15 of the first casing 1a; thereby, when the heat dissipation fin 22 is coupled to the inside of the outer casing i, each of the fixing pieces 221, The first joint portion 15 and the shoulder portion 18 can form an air gap G communicating with the inside of the outer casing 相对 relative to each other, and the air gap G can be used for airflow, so that the heat dissipation fin 22 is assembled even in the first casing. La and the second casing lb, but the outside airflow can still enter the inside of the casing 1 through the air gap G to ensure that the air inlet function of the air inlet portion u is not affected. The recording fan 21 can also be combined with a fixed piece (8) such as a screw and the heat sink 22 to guide the airflow through the dispersion. Then 22, 22 so that the heat may be rapidly performed heat exchange with the gas flow. The light-emitting module 3 includes a light-emitting element 31 and a control substrate %. The light-emitting element 31 can be a light-emitting diode (LED), a bulb or other member having the same illumination; a miscellaneous board 32 is connected to the light-emitting element 31 to control the light-emitting element 31 to generate light. In this embodiment, the light-emitting element 31 is opposite to the light-transmitting portion 14 ′ of the outer casing 以 to facilitate the projection of light through the light-transmitting portion 14 to achieve a better light-emitting effect, and the light-emitting element 31 is a light-emitting diode. The fourth substrate 32 is electrically connected to the electrical connection portion 17 of the outer casing 1 , and the control substrate 32 is attached to the heat dissipation fin 22 of the heat dissipation module 2 of the 201237317. In order to facilitate the heat dissipation fin 22, the temperature of the light-emitting module 3 during operation can be more effectively reduced, thereby achieving better heat dissipation. Please refer to the 3®, when the lamp of the present invention is used in actual use, the outer casing 1 can be mounted on the lamp holder of the wall (4) ceiling (4) with the outer cover 4 (the outer cover 4 can also be omitted and the lamp can be directly mounted on the lamp a predetermined location, such as a mounting hole or the like provided at another predetermined location, wherein the inner peripheral wall of the outer cover 4 and the outer peripheral wall of the outer casing 1 have a flow guiding space, and the flow guiding channel 13 is located in the guiding space, so that the guiding The flow space is expanded; the electrical connection portion 17 of the outer casing 1 is electrically connected to the general power supply system through the outer cover 4 to provide power to the control substrate 32 of the light-emitting module 3, thereby controlling the light-emitting element 31 to generate light. The light system of the light-emitting element 31 is projected from the light-transmitting portion 14 to the outside. The main feature of the lamp of the present invention is that when the lamp of the present invention is installed at a predetermined position by the cover 4, or if the lamp is omitted, the lamp cover is directly embedded in the light steel frame or When the decoration is installed in the mounting hole of the ceiling of Zhan, as shown in FIG. 4, based on the structural design of the flow guiding channel 13 of the lamp of the present invention, when the cooling fan 21 is to be introduced into the outer airflow through the outer casing 1 and the outer casing 4 or installed When the holes are between the walls, the gap between the outer casing 1 and the outer casing 4 or the mounting hole wall is increased by the flow guiding passage 13' provided by the outer peripheral wall of the outer casing 1 to increase the gap. The volume of the flow guiding space 'and the flow guiding function of the guiding channel 13' is used for the external airflow to sequentially enter the inside of the casing 1 through the guiding channel 13 and the air inlet portion 11, so that the heat dissipation The fan 21 can smoothly introduce the external airflow into the interior of the casing 1 and pass the heat-dissipating 201237317 piece 22, so that the heat energy of the light-emitting module 3 absorbed by the heat-dissipating fins 22 can be quickly exchanged with the external airflow. To reduce the luminescence The temperature of the module 3 is discharged to the external space through the venting portion 12. Therefore, the illuminating device of the present invention can use the structure of the guiding channel 13 to increase the heat dissipation effect of the heat dissipation module 2. Moreover, the illumination module 3 can be more effectively prevented from being overheated, thereby improving the service life of the lamp of the present invention. According to the structural design concept of the luminaire of the present invention, the present invention may further comprise at least one accessory structural feature or a combination thereof as described below, so that the function of the luminaire of the present invention is closer to perfection, wherein: 4, the flow guiding channel I] of the lamp of the present invention is preferably located between the air inlet portion 11 and the air outlet portion 12; thereby, the flow guiding channel 13 can be used to partition the air inlet portion u and The air outlet portion 12 is configured to effectively prevent the air inlet portion 11 and the air outlet portion 12 from being excessively approached, and to cause the airflow introduced by the heat dissipation fan 21 through the air inlet portion u and the air flow guided through the air outlet portion 12 It is not easy to generate turbulent flow between the two, and the flow of the airflow is smoothed. Further, it is ensured that the external airflow can pass through the air inlet portion u through the guide passage 13 in advance during the introduction of the external airflow. After the heat dissipation is completed, the air outlet portion 12 is discharged; as a whole, the technical feature is used to achieve the effect of improving the diversion effect. Referring to FIG. 4 again, the flow guiding channel 13 of the lamp of the present invention preferably has a first end 131 and a second end 132. The first end 131 is connected to the air inlet portion 11 of the outer casing 1. The first end 131 is further opposite to the air inlet portion 11; in addition, the second end 132 is away from the air inlet portion 11'. In the embodiment shown in the figure, the second end 132 is oriented toward the air outlet. In the process of introducing the external airflow, the external airflow may first enter the guiding channel 13 through the second end 132 so that the guiding channel 13 can be guided. The airflow passes through the air inlet portion 11 through the first end 131, ensuring that the airflow can be smoothly guided by the air guiding passage 13 into the inside of the outer casing 1, and the technical feature is used to achieve the effect of increasing the air intake amount. Referring to FIG. 4 again, the heat dissipation fan 21 of the lamp of the present invention has an axial reference line (L). The first end 131 of the flow guiding channel 13 is extended toward the second end 132. Corresponding to the axial reference line (L); for example, the direction in which the first end 131 extends toward the second end 132 corresponds to the axial reference line (L), meaning that the first end 131 is oriented The extending direction of the second end 132 is parallel to the axial reference line (L); or, when the peripheral wall of the outer casing i is curved or other irregular shape, the first end 131 extends toward the second end 132. And the axial reference line (L) has a skew angle (the skew is reduced by the size, and is appropriately adjusted by the person skilled in the art according to the shape of the outer casing or the position of the air inlet portion n and the air outlet portion 12. ' For example, 5. 45. etc.); thereby, the flow guiding channel 13 can be matched with the casing i of different shapes or the air inlet portion 11 and the air outlet portion 12 at different positions, etc. The diversion channel 13' is used to increase the intake air volume and the diversion effect. It is said that the singer of the singer is shown in Fig. 4, which is preferably a plurality of grooves formed on the outer wall of the outer casing 1, and the two ends of each of the grooves are the first end 131. And the second end 132; further, based on the axial reference line (L) of the heat dissipating fan u, the pinch shape of each groove of the flow guiding channel 13 is preferably curved; # this, when When the luminaire of the present invention is used in the predetermined position or directly reducing the person-mounting hole, the technical feature 'will increase the material casing further! The diversion (4) between the hood 4 or the wall of the mounting hole is used to increase the overall air intake efficiency. Moreover, when the radial sections of the grooves of the flow guiding channel 13 are isolated, the guiding effect of the guiding channel 13 is better. In summary, when the lamp of the present invention is installed and used, the structure of the air guiding channel 13 of the casing i is designed to allow the outside airflow of the person to enter the inside of the casing 1, so that the heat dissipation module 2 can provide sufficient advancement. The air volume rides on the light-emitting module 3 to achieve heat dissipation, and ensures that the lamp can operate normally and the like. Although the present invention has been disclosed by the above-described preferred embodiments, it is not intended to limit the invention, and various modifications and changes to the above embodiments are possible without departing from the spirit and scope of the invention. The technical scope of the present invention is protected by the scope of the invention as defined in the appended claims. Field [Simple Description] Fig. 1: A sectional view of a conventional lamp. 3 is an exploded perspective view of the lamp of the present invention. Fig. 3 is a sectional view showing the combination of the lamp of the present invention. Fig. 4 is a reference view of the state of use of the lamp of the present invention. 201237317 [Description of main components] [Invention] 1 Shell first shell Body lb second housing 11 air inlet portion 12 air outlet portion 13 flow channel 131 first end 132 second end 14 light transmitting portion 15 first joint portion 16 second joint portion 17 electrical connection portion 18 shoulder portion 2 heat dissipation mold Group 21 Cooling fan 22 Heat sink fin 221 Fixing plate 3 Light-emitting module 31 Light-emitting element 32 Control board 4 Cover L Axial reference line F Fixing element G Air gap 9] 91 conventional lamps emitting module 93 housing 92 heat dissipating fins 94 fan -15--