1252898 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種發光二極體車燈，特別是指一 發光二極體車燈。 【先前技術】 發光二極體具有工作壽命長及耗電量低等特性，因此 目前發光二極體不僅廣泛運用在各種顯示器中，甚至亦11 使用在照明設備的領域上，例如作為車燈的發光裝置·/' 等等，但是，由於車燈使用時會點亮大量的發光二極體，. 進而產生局熱影響相關電路，特別是需要亮度較大之車前 燈，更是會造成車燈無法正常工作的情形，因此散熱問: 乃成為發光二極體車燈業者極需改進的重要課題之一。、 【發明内容】 因此，本發明之目的，即在提供一種散熱效果佳的發1252898 IX. Description of the Invention: [Technical Field] The present invention relates to a light-emitting diode lamp, and more particularly to a light-emitting diode lamp. [Prior Art] The light-emitting diode has characteristics such as long working life and low power consumption. Therefore, the current light-emitting diode is widely used not only in various displays, but also in the field of lighting equipment, for example, as a lamp. Light-emitting device ·/', etc., however, because the lamp will illuminate a large number of light-emitting diodes when used, and then generate a circuit that affects the heat, especially the headlights that require a large brightness, which will cause the car The lamp can't work normally, so the heat is asked: It is one of the important topics that need to be improved in the LED lamp industry. SUMMARY OF THE INVENTION Therefore, the object of the present invention is to provide a hair with good heat dissipation effect.
光二極體車燈。 X 於是，本發明發光二極體車燈，包含：一殼體單元， 及至）一發光二極體單元。該殼體單元具有至少一透氣孔 ’及至少-排氣孔。該發光二極體單元裝設在該殼體單元 中:該風扇裝設在該殼體單元中，空氣會由透氣孔進入殼 並帶走發光二極體單元發散的熱，再由排氣孔排 出殼體單元外。 本發明另一種發光二極體車燈，是用於組裝在一車殼 。亥車成具有一安裝孔、一位於安襞孔周圍的圍殼部， 及至少—形成在隨部上的透氣孔，該發光二極體車燈包 1252898 3 设體單元，及至少一發光二極體單元。該殼體單元 具有一封閉固接在該圍殼部之周緣後方的燈座，及一嵌接 在该安裝孔中的燈罩，該燈座具有至少一排氣孔。該發光 二極體單元位在該殼體單元中。空氣會由透氣孔進入殼體 單元並V走發光一極體單元發散的熱，再由排氣孔排出 殼體單元外。 【實施方式】 有關本發明之前述及其他技術内容、特點與功效，在 以下配合芩考圖式之四個較佳實施例的詳細說明中，將可 清楚的呈現。 在本發明被詳細描述之前，要注意的是，在以下的說 明内各中，類似的元件是以相同的編號來表示。 參閱圖1、圖2與圖3，本發明發光二極體車燈之第一 較佳實施例包含：一殼體單元丨、複數發光二極體單元2、 複數散熱單元3，及複數風扇4。 该殼體單元1具有一燈座u，及一設在該燈座u前側 的透光燈罩12。該燈座U具有一直立的後側壁m，及一 同體由後側壁周緣向前延伸的後周壁112。該燈罩12 具有一直立的前侧壁121、一同體由前側壁121周緣向後延 伸的月il周壁122 ’及複數同體由該前側壁121向後延伸的框 :壁123，該前周壁122之後緣與後周壁112之前緣相對結 合，且在本實施例中該後周壁112、後側壁iu '前側壁 12!及刖周壁122乃共同圍成一剖面呈扇形的殼體，而在前 側羞121後側，由左向右排列設有三個中空方柱狀框圍壁 1252898 23且每一框圍壁123皆具有一朝後的開口 124。該殼體 话一 1 ^ 更具有複數透氣孔13，及一排氣孔14。該等透氣孔 13疋相間隔地貫通形成在該前側壁12丨上，且不與框圍壁 123所框圍的空間連通，該排氣孔14是設在燈座11之後周 壁U2的頂部中央。當然在設計上，框圍壁123、透氣孔13 與排氣孔之數量、形成位置與形狀，並不以本實施例為 限。 该等發光二極體單元2分別裝設在該殼體單元1中， 每一發光二極體單元2具有一電路板21、一裝設在電路板 21上的發光二極體22，及一罩設在該發光二極體22前方 用以增加發光效果的透鏡23。由於發光二極體單元2之構 造與作動原理為一般習知技術，所以在此不再詳細說明。 母政熱單元3具有一密封固接在該框圍壁丨23之開 口 124上的固接板31，及複數設在固接板31後方的導熱柱 32。該前側壁121、框圍壁123、固接板31與燈座丨丨共同 界定出-通風空間33,該通風空間33連通透氣孔13與排 氣孔14，另在該通風空間33中更藉由該固接板31、框圍 壁123及前側壁121共同界定出一隔離室34，該隔離室％ 與通風空間33相分隔。而上述發光二極體單元2之電路板 21是安裝在該固接板31之一前側上，用以將發光二極體 22密閉隔離在隔離室34中，以避免水氣進入而造成車燈霧 化模糊。該等導熱柱32位在通風空間33中，且鄰近於排 氣孔14，以便於散熱。 該等風扇4裝設在該殼體單元！中，在本實施例中設 1252898 有三具風扇4 ’分別鄰近散熱單元3之該等導熱柱32，其 中二風扇4分別裝設在位於左、右兩側之散熱單元3側邊 ，而另一風扇4則是裝設在位在中央之散熱單元3上方， 且對應位在排氣孔14下方。m果錢孔14是設在 燈座U之後周壁112底部時’裝設在中央之風 在散熱單元3下方。 配合苓閱圖4，為了避免雨水或灰塵直接進入車燈中， 該燈罩12 $具有一界限出該透氣孔13的孔緣部125，及一 自該孔緣^ 125之-頂側向前且向下延伸的遮詹部⑶。該 遮詹^ 126是遮罩在該透氣孔13前方，並與該孔緣部⑵ :-底側相間隔，令空氣能由遮簷部126 了方，經由遮簷 口"26與刖側壁121間進入透氣孔13，以避免液體濺入透 氣孔13中。 义/閱圖2及圖3 ’當車子向前行進且開啟車燈時，該等 發光二極體22會朝外發光，並會經由該等導熱柱32將熱 傳域風㈣33中，此時由於風扇4是被啟動的狀態，所 乂藉由風扇4吸氣，可使通風空間33形成較外界—大氣屢 為低的負壓’能有助於空氣由透氣孔13進人通風空間33， 2埶气机推送到中央，而且此溫度較低的冷空氣流經該等 導熱^ 32，會—併將熱帶走，之後再藉由中央風扇4的向 一卜氣即犯將熱空氣向上抽引排出排氣孔14，以使發光 極體單元2發散的熱排出殼體單元1外。 一 a /閱圖5與圖6 ’是本發明發光二極體車燈之第二較佳 、也例本貫施例之構造大致與上述實施例相同，不同之 !252898 處在於：本實施例風扇4的裳 別裝設散熱單元3之料柱 不冋’㈣風扇4分 燈座η之後周壁u ，而該殼體單元1則在 14分別龍料風扇 孔14 ’該等排氣孔 ，而使通風㈣33形成負等風扇4會向上排氣 通風* 、， 負壓，讓冷空氣由透氣孔13進入 、風工間33，亚將該等導埶 * Μ ^ 4 ^ ^ ^ - … 的熱f走，而後再分別藉 扇將熱工氣向上推送排出排氣孔14外。 較佳貫施例’包含：一殼體單元 ’及複數散熱單元 ί閱圖7、圖8與圖9’本發明發光二極體車燈之第三 複數發光二極體單元2 該殼體單元1亦具有—燈座11，及-燈罩12,而與上 述實施例不同之處在於：該燈座u更具有複數形成於後周 壁112底部的排塵孔113 ’而且本實施例並未在燈罩η上 設置框圍壁123及遮詹部126,僅在該前側壁121上形成有 四透氣孔13。除此之外，該殼體單元丨更具有四由透氣孔 13周緣向後一體延伸的導氣管15。 每一散熱單元3之固接板31周緣與燈罩12緊密接合 ’且該固接板3 1具有相間隔之四穿孔3 11與五通孔3 12， 該等導氣管15是對應插接在該等穿孔3 11中，該固接板3 ! 與燈座11共同界定一連通透氣孔13的通風空間33，並令 前側壁121、導氣管15與固接板31共同界定一隔離室34 ’而每一發光二極體單元2之電路板21略呈十字形，亦讓 組裝其上之發光二極體22被隔離在隔離室34中。 參閱圖9、圖10與圖11，本實施例與上述實施例不同 9 1252898 之處更在於：各散熱單元3形成在固接板31後方的構造不 · 同，僅設有一個剖面與電路板21對應而略呈十字形的導熱 柱32’導熱柱32具有五個分別貫設在中央與四端的貫孔 321 ’分別對應固接板之通孔312，此外，該散熱單元3更 具有一同體自該固接板31向後延伸的導熱環35、複數位在 通風空間33中以便於將熱排出的散熱翼片36，及五支分別’ 插接在通孔312與貫孔321中的導熱管37。該導熱環35是 繞設在穿孔311與導熱柱32外圍，且導熱環35向後突伸的 長度較短於導熱柱32。由散熱單元3之後方來看，該等散 _ 熱翼片36是間隔地設在固接板31後方，且佈設在導熱環 35與導熱柱32之間及外側處，當然在設計上散熱翼片36 亦可以為插接在固接板3 1上的片體。該固接板3 1、導熱柱 32、V熱環35及散熱翼片36皆是由紹合金材料同體製成 ，而該導熱管37則是由銅金屬材料製成，該導熱管37之 管壁别端乃抵靠在該電路板21上，為一容裝有一導熱液的 中空密閉管體，可用以加強導熱效果，並減輕導熱管37的 重量，此種導熱管37係習知技術，恕不再詳細敘述。 籲 參閱圖9與圖12,進一步說明的是，為了便於讓沉積 在導熱環35與導熱柱32上之灰塵排出，該導熱環35具有 一設在一外周面之頂側後端且向下斜切的第一導塵槽351， 及一設在一内周面之底側後端且向下斜切的第二導塵槽352 ，該導熱柱32亦具有一設在中央頂側後端且向下斜切的第 三導塵槽322，第一〜三導塵槽Mbs52、32】可導引讓灰 塵向下掉落，從排塵孔113排出。 10 1252898 參，與圖u，於車燈使用時， 兀3會吸收發光二極體單元 旻方之放熱早 〜+ 2所發散的熱，而隨著車子的 别進，空氣會由透氣孔13進 ^者車子的 時空氣會先在導熱環3”環繞並向後吹出，此 片36之間滯留足夠進 32與散熱翼 ;%丄 吳的捋間，再一併將熱帶走， 後由排氣孔14排出，以維持車燈的正常運作。 參閱圖1 3，本發明發光二極體車燈t g ^ + ,a ^ , 1菔早/且之弟四較佳實施例 =於組裝在一車殼5上，該車殼5具有一安褒孔Η、 5_2上於安/孔51周圍的圍殼部52’及至少一形成在圍殼部 亚罪近女裝孔51下方的透氣孔53，而該發光二極體 ，包含：-殼體單元i、複數發光二極體單元2、複數散 熱單元3，及複數風扇4。 該殼體單元1具有-封閉固接在該圍殼部52之周緣後 方的燈座u、一嵌接在該安裝孔51中的燈罩12，及一形成 於燈座11頂部的排氣孔14。該燈座u具有複數形成於底 4的排塵孔113。該等發光二極體單元2是位在該殼體單元 1中，每一發光二極體單元2具有至少一發光二極體22。 該等散熱單元3由導熱性佳之材料製成，是設在該殼 體單元1中對應位在透氣孔53與排氣孔14之間，且供發 光一極體單元2安裝，每一散熱單元3具有一周緣與燈罩 12緊岔接合的固接板3 1，及複數設在固接板3 1後方且直 立平行地朝燈座11延伸的散熱翼片36。該圍殼部52與燈 座11共同界定一連通透氣孔53與排氣孔14的通風空間33 ’並令燈罩12與固接板31共同界定一與通風空間33分隔 11 1252898 的隔離室34，該發光二極體22是安裝在固接板31前側且 位在隔離室34中，該等散熱翼片36位在通風空間33中， 以便於將發光二極體單元2的熱排至通風空間33。 該等風扇4裝設在散熱單元3 ±方，是位於該殼體單 元1中且對應在排氣孔14下方。藉由風扇4的抽吸作用， 能使空氣由透氣孔53進入通風空間33中，並帶 …發光二極體單元2發散的熱，而後二 排出殼體單元1外。 由上述說明可知，本發明發光二極體車燈，在設計上 主要是利用散熱單元3將發光二極體單元2發散的熱傳導 至通風空間33 ’並在前㈣罩12或車殼5上設有複數透氣 孔13、《，且在燈座u上設有排氣孔14，使用時空氣會由 透氣孔B、53進人通風空間％，並流經散熱單元3以二走 ，上的熱量’而後再由排氣孔14排出，心將發光二極體 早几2發散的熱排出車燈外，所以本發明具有較佳之散敎 ίΡ果^外，本發明用於發光之發光二極體22是密閉隔離 在=離至34中’能避免車燈起霧模糊，所以構造設計較佳 □ I維持車燈的正常工作，確實能夠達財發明之目的， 因此’本發明不僅是前所未有之創新，更可供產業上利用 者’僅為本發明之較佳實 能以此限定本發明實絲夕铲冋^ 〇田不 範圍Mt,、 卩大凡依本發Μ請專利 乾固及發明說明內交 々 ^ 屬| 之間早的等效變化與修飾，皆仍 屬本發明專利涵蓋之範圍内。 白仍 12 χ252898 【圖式簡單說明】 圖1是本發明之發光二極體車燈的一第一較佳實施例 白勺—前視示意圖； 圖2是該第一較佳實施例的一横剖俯視示意圖； 圖3是該第一較佳實施例的一縱剖後視示意圖； 圖4是該第一較佳實施例的一側剖視示意圖； 圖5是本發明之發光二極體車燈的一第二較佳實施例 的一橫剖俯視示意圖； 圖6是該第二較佳實施例的一縱剖後視示意圖； 圖7疋本發明之發光二極體車燈的一第三較佳實施例 的一立體外觀圖； 圖8是該第三較佳實施例的一立體分解圖； 圖9是該第三較佳實施例的一剖視示意圖； 圖1 〇是該第三較佳實施例之一散熱單元的一立體後視 圖； 圖11是該第三較佳實施例之該散熱單元的立體後視圖 ’圖中說明除去複數散熱翼片之後所顯露的狀態； 圖12是該第三較佳實施例的一後視示意圖，圖中說明 除去該等散熱翼片之後所顯露的狀態；及 圖13是本發明之發光二極體車燈的一第四較佳實施例 的一剖視不意圖。 13 1252898 【主要元件符號說明】 1 …殼體單元 3 1 s …固接板 11 燈座 311 …穿孔 111 後側壁 312 4通孔 112 …後周壁 3 2… …導熱柱 113““ 。排塵孔 3 2 1… 4…貫子匕 12 。燈罩 3 2 2… …、第三導塵槽 121" 前側壁 3 3…x …κ通風空間 122… …前周壁 3 4… …'隔離室 123… …框圍壁 3 5 χ…導熱環 1 2 4… …開口 3 51- …4第一導塵槽 125… …孔緣部 352… 第二導塵槽 126… …遮詹部 3 6 … ……散熱翼片 13…“ …透氣孔 3 7 *… … < 導熱管 14"" …排氣孔 4…… ……風扇 1 5…… …導氣管 ***>>#« ……車殼 2……1 …發光二極體單元 1。* 4…安裝孔 21…… …電路板 5 2…》 …圍殼部 22……，’ ^發光二極體 5 3 '" * 透氣孔 23…… …透鏡 14Light diode lamp. X Thus, the light-emitting diode lamp of the present invention comprises: a housing unit, and to a light-emitting diode unit. The housing unit has at least one venting opening and at least a venting opening. The light emitting diode unit is installed in the housing unit: the fan is installed in the housing unit, and the air enters the shell through the vent hole and takes away the heat radiated by the light emitting diode unit, and then the vent hole Discharge outside the housing unit. Another light-emitting diode lamp of the present invention is used for assembly in a vehicle body. The vehicle has a mounting hole, a casing portion around the ampoule hole, and at least a venting hole formed in the accommodating portion, the illuminating diode lamp package 1252898 3 is provided with a body unit, and at least one illuminating unit Polar body unit. The housing unit has a lamp holder closed to be secured behind the periphery of the casing portion, and a lamp cover that engages in the mounting hole, the lamp holder having at least one venting opening. The light emitting diode unit is located in the housing unit. The air enters the housing unit from the vent hole and V dissipates the heat radiated from the one-pole unit, and is then discharged from the housing unit through the vent hole. The above and other technical contents, features and effects of the present invention will be apparent from the following detailed description of the preferred embodiments of the drawings. Before the present invention is described in detail, it is noted that in the following description, similar elements are denoted by the same reference numerals. Referring to FIG. 1 , FIG. 2 and FIG. 3 , a first preferred embodiment of a light-emitting diode lamp of the present invention comprises: a housing unit 丨, a plurality of light-emitting diode units 2, a plurality of heat-dissipating units 3, and a plurality of fans 4 . The housing unit 1 has a lamp holder u and a light-transmitting lamp cover 12 disposed on the front side of the lamp holder u. The socket U has an upright rear side wall m and a rear peripheral wall 112 that extends forward from the periphery of the rear side wall. The lampshade 12 has an upright front side wall 121, a month il peripheral wall 122' extending from the periphery of the front side wall 121, and a frame extending rearwardly from the front side wall 121: a wall 123, the rear edge of the front peripheral wall 122 The front peripheral wall 112, the rear side wall iu 'the front side wall 12! and the second side wall 122 are collectively formed into a fan-shaped housing in the present embodiment, and the front side is shy 121. On the side, three hollow square column frame walls 1252898 23 are arranged from left to right and each frame wall 123 has a rearward opening 124. The housing has a plurality of venting holes 13 and a venting opening 14 . The vent holes 13 are formed in the front side wall 12A so as to be spaced apart from each other, and are not in communication with a space surrounded by the frame surrounding wall 123. The vent hole 14 is provided at the top center of the peripheral wall U2 after the lamp holder 11 . Of course, in design, the number of the frame surrounding walls 123, the venting holes 13 and the vent holes, and the formation position and shape are not limited to this embodiment. The light emitting diode units 2 are respectively disposed in the housing unit 1 , and each of the light emitting diode units 2 has a circuit board 21 , a light emitting diode 22 mounted on the circuit board 21 , and a light emitting diode unit 22 . A lens 23 is provided in front of the light-emitting diode 22 for increasing the light-emitting effect. Since the structure and operation principle of the light-emitting diode unit 2 are generally known, they will not be described in detail herein. The parent thermal unit 3 has a fixing plate 31 sealed to the opening 124 of the frame wall 23, and a plurality of heat conducting columns 32 disposed behind the fixing plate 31. The front side wall 121, the frame surrounding wall 123, the fixing plate 31 and the lamp holder 丨丨 together define a ventilation space 33 that communicates with the venting opening 13 and the venting opening 14 and further in the venting space 33. An insulating chamber 34 is defined by the fixing plate 31, the frame surrounding wall 123 and the front side wall 121, and the isolation chamber is separated from the ventilation space 33. The circuit board 21 of the LED unit 2 is mounted on a front side of the fixing plate 31 for hermetically isolating the LEDs 22 in the isolation chamber 34 to prevent water from entering and causing the lights. Atomization blur. The heat conducting columns 32 are located in the venting space 33 and adjacent to the venting holes 14 to facilitate heat dissipation. The fans 4 are mounted in the housing unit! In the present embodiment, there are three 122498 fans 4' respectively adjacent to the heat conducting columns 32 of the heat dissipating unit 3, wherein the two fans 4 are respectively disposed on the side of the heat dissipating unit 3 on the left and right sides, and the other The fan 4 is mounted above the central heat dissipating unit 3 and correspondingly below the venting opening 14. When the money hole 14 is provided at the bottom of the peripheral wall 112 after the lamp holder U, the wind installed in the center is below the heat radiating unit 3. In conjunction with FIG. 4, in order to prevent rainwater or dust from directly entering the vehicle lamp, the lampshade 12$ has a hole edge portion 125 that defines the vent hole 13 and a top side from the hole edge 125 The Zhan section (3) that extends downward. The cover 126 is shielded in front of the vent hole 13 and spaced apart from the hole edge portion (2):- bottom side so that air can be viscous by the concealing portion 126, via the concealer port "26 and the side wall 121 The vent hole 13 is entered to prevent liquid from splashing into the vent hole 13.义/看图2 and Fig. 3 'When the car travels forward and turns on the lights, the light-emitting diodes 22 will illuminate outwards, and the heat will be transferred to the wind (4) 33 via the heat-conducting columns 32. Since the fan 4 is in the activated state, the air is ventilated by the fan 4, so that the ventilation space 33 can form a negative pressure that is lower than the outside-atmosphere, which can help the air enter the ventilation space 33 from the vent hole 13. 2 The helium blower is pushed to the center, and the cold air with a lower temperature flows through the heat transfer 32, and will go to the tropics, and then the hot air is pumped up by the central fan 4 The exhaust hole 14 is exhausted to discharge the heat radiated from the emitter unit 2 out of the casing unit 1. A / / FIG. 5 and FIG. 6 ' are the second preferred embodiment of the light-emitting diode lamp of the present invention, and the configuration of the present embodiment is substantially the same as that of the above embodiment, except that 252898 is: this embodiment The fan 4 is mounted with the heat sink unit 3 without the column '(4) the fan 4 is divided into the lamp holder n after the peripheral wall u, and the housing unit 1 is at 14 respectively, the fan fan hole 14' such venting holes, and Make ventilation (4) 33 form a negative fan 4 will exhaust ventilation *,, negative pressure, let cold air enter through the venting hole 13, the wind room 33, the heat of the guide * Μ ^ 4 ^ ^ ^ - ... f goes, and then pushes the hot work gas upwards out of the exhaust hole 14 by a fan. Preferably, the embodiment includes: a housing unit and a plurality of heat dissipating units. FIG. 7, FIG. 8 and FIG. 9 are a third plurality of light emitting diode units 2 of the light emitting diode lamp of the present invention. 1 also has a lamp holder 11 and a lamp cover 12, which differs from the above embodiment in that the lamp holder u further has a plurality of dust-discharging holes 113' formed at the bottom of the rear peripheral wall 112 and the present embodiment is not in the lampshade. The frame surrounding wall 123 and the shielding portion 126 are provided on the η, and only four vent holes 13 are formed in the front side wall 121. In addition to this, the housing unit has four air ducts 15 extending integrally rearward from the periphery of the venting opening 13. The periphery of the fixing plate 31 of each heat dissipating unit 3 is in close contact with the lamp cover 12, and the fixing plate 31 has four perforations 3 11 and five through holes 3 12, and the air guiding tubes 15 are correspondingly inserted therein. In the perforation 3 11 , the fixing plate 3 and the lamp holder 11 together define a ventilation space 33 communicating with the venting opening 13 , and the front side wall 121 , the air guiding tube 15 and the fixing plate 31 together define an isolation chamber 34 ′ The circuit board 21 of each of the light-emitting diode units 2 has a slightly cross shape, and the light-emitting diodes 22 assembled thereon are also isolated in the isolation chamber 34. Referring to FIG. 9 , FIG. 10 and FIG. 11 , the difference between the embodiment and the above embodiment is 9 1252898. The structure of each heat dissipating unit 3 formed behind the fixing plate 31 is different, and only one section and the circuit board are provided. The heat-conducting column 32' corresponding to the slightly cross-shaped heat-conducting column 32 has five through-holes 312 respectively extending through the center and the four ends, respectively corresponding to the through holes 312 of the fixing plate, and further, the heat-dissipating unit 3 has a same body a heat conducting ring 35 extending rearward from the fixing plate 31, a plurality of heat dissipating fins 36 in the ventilating space 33 for discharging heat, and five heat conducting tubes respectively inserted into the through holes 312 and the through holes 321 37. The heat conducting ring 35 is wound around the periphery of the through hole 311 and the heat conducting column 32, and the heat conducting ring 35 protrudes rearwardly shorter than the heat conducting column 32. The heat dissipation fins 36 are disposed at intervals behind the fixing plate 31 and are disposed between and between the heat conducting ring 35 and the heat conducting column 32, of course, in the design of the heat dissipating fins. The sheet 36 can also be a sheet that is inserted into the fixing plate 31. The fixing plate 31, the heat conducting column 32, the V heat ring 35 and the heat dissipating fins 36 are all made of the same alloy material, and the heat conducting tube 37 is made of a copper metal material, and the heat conducting tube 37 is The other end of the pipe wall abuts against the circuit board 21, which is a hollow sealed pipe body containing a thermal fluid, which can be used to enhance the heat conduction effect and reduce the weight of the heat pipe 37. The heat pipe 37 is a conventional technique. It will not be described in detail. Referring to FIG. 9 and FIG. 12, further, in order to facilitate the discharge of dust deposited on the heat conducting ring 35 and the heat conducting column 32, the heat conducting ring 35 has a top end rear end which is disposed on an outer peripheral surface and is inclined downward. a first dust guiding groove 351 and a second dust guiding groove 352 which is disposed at a bottom end of the inner circumferential surface and which is inclined downwardly. The heat conducting column 32 also has a central top end and The third dust guiding groove 322, which is chamfered downward, the first to third dust guiding grooves Mbs 52, 32 can guide the dust to fall downward and be discharged from the dust discharging hole 113. 10 1252898 参, and Figure u, when used in the headlights, 兀3 will absorb the heat radiated from the illuminating diode unit 〜 早 ~ ~ 2, and the air will be vented 13 as the car enters. When entering the car, the air will first circulate around the heat-conducting ring 3" and blow backwards. The piece 36 stays enough to enter the 32 and the heat-dissipating wing; the 丄 捋 捋 , , , , , , , , , , , , , , The hole 14 is discharged to maintain the normal operation of the lamp. Referring to FIG. 13, the light-emitting diode lamp of the present invention tg ^ + , a ^ , 1 菔 early / and the fourth preferred embodiment = assembled in a car On the casing 5, the casing 5 has an ampoules, a shell portion 52' on the 5/ around the ampule 51, and at least one venting hole 53 formed in the shell portion below the sling 51. The light-emitting diode comprises: a housing unit i, a plurality of light-emitting diode units 2, a plurality of heat-dissipating units 3, and a plurality of fans 4. The housing unit 1 has a closed-closed portion of the housing portion 52. a lamp holder u behind the periphery, a lamp cover 12 embedded in the mounting hole 51, and a vent hole 14 formed at the top of the lamp holder 11. The lamp holder u has a complex shape The light-emitting diodes 2 are located in the housing unit 1. Each of the light-emitting diode units 2 has at least one light-emitting diode 22. The heat-dissipating units 3 are The material with good thermal conductivity is disposed between the vent hole 53 and the vent hole 14 in the housing unit 1 and is mounted for the illuminating unit 2, each of the heat dissipating units 3 has a peripheral edge and a lampshade 12 a fastening plate 3 1 adjacent to the joint, and a plurality of heat dissipating fins 36 disposed behind the fixing plate 3 1 and extending parallel to the lamp holder 11 in parallel. The casing portion 52 and the lamp holder 11 define a connection. The air vent 53 and the venting space 33' of the venting opening 14 and the lampshade 12 and the fixing plate 31 together define an isolation chamber 34 which is separated from the venting space 33 by 11 1252898. The illuminating diode 22 is mounted on the front side of the fixing plate 31. And located in the isolation chamber 34, the heat dissipation fins 36 are located in the ventilation space 33, so as to discharge the heat of the LED unit 2 to the ventilation space 33. The fans 4 are mounted on the heat dissipation unit 3 Is located in the housing unit 1 and corresponding to the exhaust hole 14. The suction function of the fan 4 enables The gas enters the ventilating space 33 by the vent hole 53 and carries the heat radiated by the illuminating diode unit 2, and the second ejector is discharged from the outside of the casing unit 1. As can be seen from the above description, the illuminating diode lamp of the present invention is designed. Mainly, the heat radiated by the light emitting diode unit 2 is transmitted to the ventilation space 33' by the heat radiating unit 3, and a plurality of vent holes 13 are provided on the front (four) cover 12 or the car shell 5, and a row is arranged on the lamp holder u. The air vent 14, when in use, the air will enter the ventilation space by the venting holes B, 53 and flow through the heat dissipating unit 3 to go, the heat on the 'after the vent hole 14 is discharged, and the heart will emit the LED early A few of the two divergent heats are emitted outside the lamp, so that the present invention has a better dimming effect, and the light-emitting diode 22 for illuminating according to the present invention is hermetically sealed at = from 34 to avoid fogging of the lamp. Blur, so the structure design is better □ I maintain the normal operation of the lights, it can indeed achieve the purpose of the invention, so 'the invention is not only an unprecedented innovation, but also for the industrial users' is only the better of the present invention It is possible to limit the present invention to the present invention. Almost without under this range Mt ,, Jie hair Μ patenting dryness and deposit within the genus described invention 々 ^ | early between modifications and equivalent, are within the scope of the patent is still the case of the present invention encompasses. 1 is a schematic diagram of a first preferred embodiment of a light-emitting diode lamp of the present invention; FIG. 2 is a cross-sectional view of the first preferred embodiment. 3 is a schematic longitudinal cross-sectional view of the first preferred embodiment; FIG. 4 is a side cross-sectional view of the first preferred embodiment; FIG. A cross-sectional plan view of a second preferred embodiment of the lamp; FIG. 6 is a longitudinal cross-sectional rear view of the second preferred embodiment; FIG. 7 is a third view of the LED lamp of the present invention. Figure 3 is an exploded perspective view of the third preferred embodiment; Figure 9 is a cross-sectional view of the third preferred embodiment; Figure 1 is the third comparison FIG. 11 is a perspective rear view of the heat dissipating unit of the third preferred embodiment. FIG. 11 is a perspective view showing the state after the removal of the plurality of heat dissipating fins; FIG. 12 is the same. A rear view of the third preferred embodiment, illustrating the removal of the heat dissipating fins The state revealed later; and Fig. 13 is a cross-sectional view showing a fourth preferred embodiment of the light-emitting diode lamp of the present invention. 13 1252898 [Description of main component symbols] 1 ... housing unit 3 1 s ... fixing plate 11 lamp holder 311 ... perforation 111 rear side wall 312 4 through hole 112 ... rear peripheral wall 3 2 ... ... heat conducting column 113 "". Dust holes 3 2 1... 4... 匕 匕 12 . Lamp cover 3 2 2 ..., third dust guide groove 121 " front side wall 3 3...x ... κ ventilation space 122 ... front peripheral wall 3 4 ... ... isolation chamber 123 ... frame surrounding wall 3 5 χ ... heat conducting ring 1 2 4... Opening 3 51- ... 4 first dust guiding groove 125... hole edge portion 352... second dust guiding groove 126... shielding portion 3 6 ... ... heat dissipation fin 13 ... "... vent hole 3 7 * ... < heat pipe 14"" ... vent 4... ...... fan 1 5... air pipe ***>>#« ......car shell 2...1 ...lighting diode unit 1. * 4... mounting hole 21 ... ... circuit board 5 2 ... ... ... housing portion 22 ..., ' ^ light emitting diode 5 3 ' " * venting holes 23 ... ... lens 14