201007072 九、發明說明： 【發明所屬之技術領域】 本發明係有關一種散熱燈具暨其組裝方法，尤指一種 具有大接觸面積以作傳導散熱，而達良好散熱效果之燈具 •及其組裝方法。 【先前技術】 ❹ 如第4圖所示’為習用之燈具結構，其中之燈頭81係 裝設於燈殼82中，且燈頭81中設有一光源83，而燈頭81 之後端係呈類半圓球體形狀84，前述之光源83所產生之 熱量除藉由空氣對流朝前方與後散發外，更藉由燈頭81與 燈殼82之銜接處作傳導方式之傳導散熱。 然而’從圖4中可得知’燈頭81後端成半球狀之型態， 此處半球狀體與燈殼82内周面之間存在一類似漏斗狀之 空間85，而因發光之散熱需求，雖可藉由此處半球狀與漏 參> 斗狀空間處之空氣來作熱對流達成，但其效果仍不若實體 物質接觸之熱傳導為佳。況且，倘若燈頭上之光源增設為 多個時，原設計之散熱方式將無法滿足大量散熱之所需。 承上’因為熱量積累而無法散出之緣故，將易使内部 發光之光源其使用壽命降低。 因此，此類習用技術之散熱方式時有改良之必要。 【發明内容】 5 201007072 本發明目的之一，在於解決上述的問題而提供一種散 熱燈具暨其組裝方法，係藉由增加燈頭與燈殼間之實質接 觸面積，藉此增加其傳導散熱之面積，進而符合增設較多 光源時之大量散熱需求。 本發明目的之二，藉由增加散熱之效果，進而確保發 光單元之使用壽命。 本發明目的之三，係提供一構件較少而組裝簡單、迅 β速之散熱燈具。 為達前述之目的，本發明係包括： 一金屬材質之燈殼，其内具有一容置空間，該容置空間 具有一開口，且該燈殼内周面環繞形成一朝内漸縮之階梯 結構，該階梯結構包括一寬徑面，該寬徑面垂直連接一橫 向面，該橫向面垂直連接一窄徑面； 髻一金屬材質之燈頭，其内設有一發光單元，該燈頭頂部 。=緣朝外水平延伸環設一抵靠部，該燈頭係設於該燈殼之 =置空間’其中該燈頭之-相面係抵接於該窄徑面，該 =靠部之底面係抵接該橫向面，而該抵靠部之外周圍係抵 於該寬徑面；又該發光單元包括—電路板及複數個設於 μ電路板之光源，該電路板靠抵於該燈頭内之底部，並以 該燈頭容置該電路板及光源； 防水玻璃，係权於該燈设内且鄰近該燈頭；一彈性防 水環，係抵設於該防水玻璃； 201007072 一鎖固蓋’係鎖設於該燈殼之開口處，該鎖固蓋之底緣 外周侧抵壓於該彈性防水環，並使之迫緊；及 一外殼’設置於該燈殼外側’且與該燈殼間隔一距離。 為使上述結構能快速組裝，其組裝方法係包括：預備 一燈殼，該燈殼具有一容置空間、一開口與一階梯結構； 預備一燈頭’該燈頭内預设有一發光單元，該燈頭且有一 抵靠部，並將該燈頭置入該容置空間，並且使該燈頭之一 ® 外周面抵靠於該階梯結構之一窄徑面，且使該燈頭之抵靠 部之底面抵靠於該階梯結構之一橫向面，亦使該燈頭抵靠 部之外周圍抵靠於該階梯結構之一寬徑面；預備一防水玻 鴇，並將該防水玻璃以鄰近於該燈頭設置；預備一彈性防 水環，並將該彈性防水環置於該防水玻璃之上方；及預備 一鎖固蓋，並將該鎖固蓋鎖設於該燈殼之開口處，並使該 鎖固蓋抵壓迫緊該彈性防水環。 螓 本發明之上述及其他目的與優點，不難從下述所選用 實施例之詳細說明與附圖中，獲得深入了解。 =然，本發明在某些料上，或料之絲上容許有 不同，但所選用之實施例，則於本說明書中， 說明，並於附圖中展示其構造。 =、 【實施方式】 所選用 不受此 請參閱第1圖至第3圖’圖中所示者為本發明 之實施例結構，此僅供說明之用，在專利申_上並 種結構之限制。 β ' 7 201007072 本發明Γ散熱燈具暨其組裝方法』之實施例說明，請 先參見第1〜2圖所示，其係包含：燈殼丨、燈頭2、限位件 3、防水玻璃4、彈性防水環5、鎖固蓋6、外殼7，其中： 該燈殼1為金屬材質，其内具有一容置空間u，該容 置空間具有一開口 U1，且該燈殼丨内周面環繞形成一朝 内漸縮之階梯結構12，該階梯結構包括一寬徑面121，該 寬徑面121垂直連接一橫向面丨22，該橫向面122垂直連 ❹接一窄徑面123 ;又，該燈殼i係可利用鋁製成，用以傳 遞熱量，且燈殼1外側更設置複數個助13(容後詳述）^ 前述燈頭2亦為金屬材質（此以鋁材質為例），該燈頭 2呈圓柱狀，且該燈頭2内設有一發光單元21。於本實施 例中，該燈頭2頂部周緣並朝外水平延伸環設有一金屬材 質之抵靠部22。其中，該燈頭2係設於該燈殼丨之容置空 間11内’該燈頭2之一外周面25係抵接於該窄徑面123， 該抵靠部22之底面係抵接該橫向面122，該抵靠部22之 外周圍係抵接於該寬徑面121 ; X，該燈頭2底面與該外 周面25之連接處係呈垂直設置，當然，該外周面託係可 全部靠抵於該燈殼1之窄徑面123。此外，該燈頭2底部 更具有一供電線（圖中未示）穿伸之穿孔23 ,以利供應電源 至該發光單元21。 承上述，該發光單元21包括一電路板211、複數個設 於該電路板之光源212、一導熱層213及一光罩214;前述 光源211此以發光二極體（LED)為例，又該電路板211係靠 201007072 抵於該燈頭2内之底部，且於該電路板211與該燈頭2底 部之間更設置該導熱層213，用以傳導光源212所產生之 熱量至該燈頭2 ;再者，該光罩214係設置於該燈頭2内 部且對應各該光源212，進而以該燈頭2容置該光源211、 電路板212、導熱層213及光罩214。 上述燈頭2之外周面與該階梯結構12之窄徑面I23之 間更設有一導熱層24，俾供熱量更加快速地傳導至燈殼1 0 而朝外散熱。 進一步，並於該燈頭2依序設置該限位片3(呈C型）、 防水玻璃4、彈性防水環5，並以該鎖固蓋6，鎖設於該燈 殼1之開口 111處，使該鎖固蓋6之底緣外周側抵壓於該 彈性防水環5，而達到迫緊防水之效果。 最後，該散熱燈具之外殼7，係設置於該燈殼1外侧 且與該燈殼1間隔一距離。其中，是利用於該外殼7内壁 設置複數個結合該些肋13之嵌槽71，促使嵌槽71固定該 ❹’些肋13 ’並使之互相結合。當然，該外殼係能利用鋁或隔 熱材質之其中一者製成，來達到用以傳導熱量或防止高溫 燙傷之傷害。 請參閱第3圖，於使用上，該散熱燈具係依一般使用 方式來使用即可，由於散熱燈具之燈頭2之外周面係以大 面積之方式與該燈殼1容置空間11中之窄徑面123作直接 接觸，並且該燈頭2上之抵靠部22之環形底面係直接接觸 於該階梯結構12之橫向面122，而該抵靠部22之環形外 201007072 周圍亦係直接接觸於該階梯結構U之寬徑面121，如此， 本發明之散熱燈具即具有較大之熱傳導面積，而此設計正 可將該發光單元所產生之熱量迅速藉由熱傳導排出。 此外’上述文中所增設之導熱層24、213(亦可利用散 熱膏），更可大幅地提昇熱傳導之效率’以大幅提昇散熱效 果。 、 綜上所述之結構，可知本發明之散熱燈具藉由該燈頭 ❹外周面與該窄徑面抵接，以及該抵靠部之底面與外周圍分 別與該橫向面與寬徑面抵接，並由於彼此間皆為金屬材質 之緣故，進而使得該發光單元處所產生之熱量，可迅速藉 由大面積之接觸傳導至該金屬燈殼，並朝外散熱，因此， 可改善習用散熱不佳之問題，並延長發光單元之光源壽命。 再者’將發光單元一艘設置於該燈頭内，將其模組化， 更提高庫存之便利性。 ❹ 請配合參閱第1圖，經由上述結構之明峰之揭露，其 組裝上’係更具有其便利性，以下係前述本發明散熱燈具 結構之組裝方法，該組裝方法主要包括： 事先預備前述燈殼1，且該燈殼1具有一容置空間U、 一開口 111與一階梯結構12。 再預備該燈頭2，該燈頭2内預設有一發光單元21 ’ 組裝過程中，利用該燈頭2之抵靠部22，將該燈頭2置入 該容置空間11 ’並且使該燈頭2之外周面抵靠於該階梯結 構12之窄徑面123，使該燈頭2之抵靠部22之底面抵靠 201007072 於該階梯結構12之橫向面122，使該燈頭2之抵靠部22 之外周圍抵靠於該寬徑面121。 其中’於該燈頭2之外周面25抵靠於該窄徑面123 時，可先於該燈頭2之外周面25或該窄徑面123處塗佈上 一層導熱層。 進一步，將前述C形限位片3靠抵於該燈頭2上方； 預備該防水玻璃4 ’並將該防水玻璃4置於於該C形限位 ❹片3之上方；預備該彈性防水環5，並將該彈性防水環5 置於該防水玻璃4之上方。 接著，預備該鎖固蓋6 ’並將該鎖固蓋6鎖設於該燈 殼1之開口 111處’並使該鎖固蓋6抵壓迫緊該彈性防水 環5 °最後’該鎖固蓋6設置完成後，更設置該外殼7於 該燈殼1外，並使肋13與嵌槽71互相結合。 於上述之組裝方法中，在該燈頭2之外周面抵靠於該窄 ❹徑面123之前’可先於該燈頭2之外周面或該窄徑面123 處塗佈上一層導熱層24。 藉由上述組裝方法的說明可知，所述發光單元以模組化 設計，更使整體構件單純，組裝動線一致，組裝上極具快 速、便利之優勢。 以上所述實施例之揭示係用以說明本發明，並非用以 限制本發明’故舉凡等效元件之置換仍應隸屬本發明之範 疇。 201007072 由以上詳細說明，可使熟知本項技藝者明瞭本發明的 確可達成前述目的，實已符合專利法之規定，爰提出專利 申請。 【圖式簡單說明】 第1圖本發明之立體分解示意圖，並同時表示組裝動線之 一致性； 第2圖係第1圖之組合剖面示意圖； 第3圖係本發明用以表示散熱路線之示意圖； 第4圖係習用散熱燈具之剖面示意圖。 【主要元件符號說明】 (習用部分） 燈頭81 燈殼82 光源83 半圓球體形狀84 漏斗狀之空間85 (本發明部分） 燈殼1 容置空間11 開口 111 階梯結構12 寬徑面121 橫向面122 窄徑面123 肋13 燈頭2 發光單元21 12 201007072 電路板211 散熱層213 抵靠部22 導熱層24 限位片3 彈性防水環5 ❹外殼7 光源212 光罩214 穿孔23 外周面25 防水玻璃4 鎖固蓋6 嵌槽71201007072 IX. INSTRUCTIONS: [Technical Field] The present invention relates to a heat dissipating lamp and an assembly method thereof, and more particularly to a lamp having a large contact area for conducting heat dissipation and achieving a good heat dissipation effect and an assembly method thereof. [Prior Art] As shown in Fig. 4, the lamp structure 81 is mounted in the lamp housing 82, and a light source 83 is disposed in the lamp cap 81, and the rear end of the lamp cap 81 is a semi-spherical sphere. In the shape 84, the heat generated by the light source 83 is radiated by the convection of the air toward the front and the rear, and is further radiated by the junction of the lamp cap 81 and the lamp housing 82. However, it can be seen from Fig. 4 that the rear end of the lamp cap 81 is hemispherical, and there is a funnel-like space 85 between the hemispherical body and the inner peripheral surface of the lamp envelope 82, and the heat dissipation requirement due to illumination Although it can be achieved by heat convection by the hemispherical and occluded air in the bucket space, the effect is not better than the heat conduction of the physical material contact. Moreover, if the number of light sources on the lamp cap is increased to a plurality of times, the heat dissipation method of the original design will not be able to meet the needs of a large amount of heat dissipation. Because the heat accumulation cannot be dissipated, it will easily reduce the service life of the internal light source. Therefore, there is a need for improvement in the way heat is dissipated in such conventional technologies. SUMMARY OF THE INVENTION 5 201007072 One of the objects of the present invention is to solve the above problems and provide a heat dissipation lamp and an assembly method thereof, which increases the area of conduction heat dissipation by increasing the substantial contact area between the lamp cap and the lamp housing. In turn, it meets the large amount of heat dissipation requirements when adding more light sources. The second object of the present invention is to ensure the service life of the light-emitting unit by increasing the effect of heat dissipation. The third object of the present invention is to provide a heat-dissipating lamp with fewer components and simple assembly and fast β-speed. For the purpose of the foregoing, the present invention comprises: a metal lamp housing having an accommodating space therein, the accommodating space having an opening, and the inner peripheral surface of the lamp housing is formed to form an inwardly decreasing step The structure includes a wide-diameter surface vertically connected to a lateral surface, the lateral surface being perpendicularly connected to a narrow-diameter surface; and a metal-made base having a light-emitting unit and a top portion of the base. The rim of the rim is provided with an abutting portion, and the base is disposed in the space of the lamp housing, wherein the surface of the lamp cap abuts against the narrow diameter surface, and the bottom surface of the yoke is offset Connected to the lateral surface, and the periphery of the abutting portion is abutted against the wide-diameter surface; and the light-emitting unit includes a circuit board and a plurality of light sources disposed on the μ circuit board, the circuit board abutting against the lamp base a bottom plate, and the light board is used to receive the circuit board and the light source; the waterproof glass is disposed in the lamp and adjacent to the lamp cap; an elastic waterproof ring is disposed on the waterproof glass; 201007072 a lock cover Provided in the opening of the lamp housing, the outer peripheral side of the bottom edge of the locking cover is pressed against the elastic waterproof ring and is tight; and a casing ' is disposed outside the lamp housing' and spaced apart from the lamp housing distance. In order to enable the quick assembly of the above structure, the assembling method comprises: preparing a lamp housing, the lamp housing has a receiving space, an opening and a step structure; preparing a lamp cap, wherein the lamp cap is preset with a light emitting unit, the lamp cap And having an abutting portion, and placing the lamp cap into the accommodating space, and abutting one of the outer peripheral faces of the lamp cap against a narrow diameter surface of the step structure, and abutting the bottom surface of the abutting portion of the lamp cap And a lateral surface of the stepped structure, the periphery of the base of the base is abutted against a wide diameter surface of the step structure; a waterproof glass bottle is prepared, and the waterproof glass is disposed adjacent to the lamp head; An elastic waterproof ring, and the elastic waterproof ring is placed above the waterproof glass; and a locking cover is prepared, and the locking cover is locked at the opening of the lamp housing, and the locking cover is pressed against Tight the elastic waterproof ring. The above and other objects and advantages of the present invention will become more apparent from the detailed description of the embodiments illustrated in the appended claims. = However, the invention is tolerated on certain materials, or on the filaments of the material, but the selected embodiment is illustrated in the specification and its construction is shown in the drawings. =, [Embodiment] The selected ones are not subject to the drawings. The figures shown in the drawings are shown in the drawings. The structure of the embodiment of the present invention is for illustrative purposes only. limit. For the description of the embodiment of the present invention, the first embodiment of the present invention includes: a lamp housing 丨, a lamp holder 2, a limiting member 3, a waterproof glass 4, The elastic waterproof ring 5, the locking cover 6, and the outer casing 7, wherein: the lamp housing 1 is made of a metal material, and has an accommodating space u therein, the accommodating space has an opening U1, and the inner circumference of the lamp housing 环绕Forming an inwardly tapered step structure 12, the stepped structure includes a wide diameter surface 121, the wide diameter surface 121 is perpendicularly connected to a lateral surface 22, the horizontal surface 122 is vertically connected to a narrow diameter surface 123; The lamp housing i can be made of aluminum for transferring heat, and a plurality of assists 13 are arranged on the outer side of the lamp housing 1 (described later in detail). The lamp holder 2 is also made of metal (this is exemplified by aluminum). The base 2 has a cylindrical shape, and a light-emitting unit 21 is disposed in the base 2. In the present embodiment, the top periphery of the base 2 and the horizontally extending ring are provided with a metal abutting portion 22. The base 2 is disposed in the accommodating space 11 of the lamp housing '. The outer peripheral surface 25 of the base 2 abuts against the narrow-diameter surface 123. The bottom surface of the abutting portion 22 abuts the lateral surface. 122, the periphery of the abutting portion 22 abuts against the wide-diameter surface 121; X, the bottom surface of the base 2 and the outer peripheral surface 25 are perpendicularly disposed, of course, the outer peripheral surface can be fully abutted On the narrow diameter surface 123 of the lamp housing 1. In addition, the bottom of the base 2 further has a through hole 23 extending through a power supply line (not shown) for supplying power to the light emitting unit 21. The light-emitting unit 21 includes a circuit board 211, a plurality of light sources 212 disposed on the circuit board, a heat-conducting layer 213, and a mask 214. The light source 211 is exemplified by a light-emitting diode (LED). The circuit board 211 is placed against the bottom of the lamp cap 2 by 201007072, and the heat conducting layer 213 is disposed between the circuit board 211 and the bottom of the lamp cap 2 for conducting heat generated by the light source 212 to the lamp cap 2; Furthermore, the mask 214 is disposed inside the base 2 and corresponds to each of the light sources 212. The light source 211, the circuit board 212, the heat conductive layer 213 and the mask 214 are accommodated by the base 2. A heat conducting layer 24 is disposed between the outer peripheral surface of the base 2 and the narrowed surface I23 of the stepped structure 12, so that heat is more quickly transmitted to the lamp housing 10 to dissipate heat outward. Further, the limiting piece 3 (in the form of a C), the waterproof glass 4, and the elastic waterproof ring 5 are sequentially disposed on the base 2, and the locking cover 6 is locked to the opening 111 of the lamp housing 1. The outer peripheral side of the bottom edge of the lock cover 6 is pressed against the elastic waterproof ring 5 to achieve the effect of tight waterproofing. Finally, the outer casing 7 of the heat dissipation lamp is disposed outside the lamp housing 1 and spaced apart from the lamp housing 1 by a distance. Wherein, the inner wall of the outer casing 7 is provided with a plurality of cavities 71 which are combined with the ribs 13, so that the cavities 71 fix the ribs 13' and bond them to each other. Of course, the outer casing can be made of one of aluminum or a heat insulating material to achieve heat transfer or prevent high temperature burns. Please refer to FIG. 3 , in use, the heat-dissipating lamp can be used according to the general use manner, because the peripheral surface of the lamp head 2 of the heat-dissipating lamp is narrowed in a large area with the lamp housing 1 accommodating space 11 . The annular surface 123 of the abutting portion 22 of the base 2 is in direct contact with the lateral surface 122 of the stepped structure 12, and the annular outer surface of the abutting portion 22 is directly in contact with the outer surface of the base portion 201007072. The wide-diameter surface 121 of the step structure U, as such, the heat-dissipating lamp of the present invention has a large heat conduction area, and the heat generated by the light-emitting unit can be quickly discharged by heat conduction. In addition, the heat-conducting layers 24 and 213 (which may also utilize a heat-dissipating paste) added in the above-mentioned manner can greatly improve the efficiency of heat conduction to greatly improve the heat dissipation effect. According to the structure described above, the heat dissipating lamp of the present invention abuts the narrowed surface by the outer peripheral surface of the base, and the bottom surface and the outer periphery of the abutting portion abut the wide surface and the wide diameter surface, respectively. And because each of them is made of a metal material, the heat generated by the light-emitting unit can be quickly transmitted to the metal lamp shell through a large-area contact, and the heat is radiated outward, thereby improving the heat dissipation of the conventional device. Problem and extend the life of the light source of the light unit. Furthermore, a light-emitting unit is placed in the base, and the module is modularized to further improve the convenience of inventory.配合 Please refer to FIG. 1 , through the disclosure of Ming Feng of the above structure, the assembly is more convenient. The following is the assembly method of the heat dissipation lamp structure of the present invention. The assembly method mainly includes: preparing the lamp housing in advance 1. The lamp housing 1 has an accommodation space U, an opening 111 and a step structure 12. The lamp holder 2 is pre-prepared, and a light-emitting unit 21 ′ is preset in the lamp cap 2 . During the assembly process, the base 2 is placed into the accommodating space 11 ′ by the abutting portion 22 of the lamp cap 2 and the outer periphery of the lamp cap 2 is made. The surface abuts against the narrow-diameter surface 123 of the stepped structure 12, so that the bottom surface of the abutting portion 22 of the base 2 abuts against the lateral surface 122 of the stepped structure 12, so that the abutment portion 22 of the base 2 is surrounded. Abut against the wide diameter surface 121. When the outer peripheral surface 25 of the base 2 abuts against the narrow-diameter surface 123, a thermal conductive layer may be applied before the outer peripheral surface 25 of the base 2 or the narrow-diameter surface 123. Further, the C-shaped limiting piece 3 is abutted against the base 2; the waterproof glass 4' is prepared and the waterproof glass 4 is placed above the C-shaped limiting piece 3; the elastic waterproof ring 5 is prepared. And the elastic waterproof ring 5 is placed above the waterproof glass 4. Then, the locking cover 6' is prepared and the locking cover 6 is locked at the opening 111 of the lamp housing 1 and the locking cover 6 is pressed against the elastic waterproof ring 5° last 'the locking cover After the setting is completed, the outer casing 7 is further disposed outside the lamp housing 1, and the rib 13 and the recessed groove 71 are coupled to each other. In the above assembly method, a thermal conductive layer 24 may be applied before the outer circumferential surface of the base 2 or the narrow diameter surface 123 before the outer circumferential surface of the base 2 abuts against the narrow radial surface 123. According to the description of the assembly method described above, the light-emitting unit is modularized, and the whole component is simple, the assembly moving wires are uniform, and the assembly is extremely fast and convenient. The above description of the embodiments is intended to be illustrative of the invention and is not intended to limit the invention. 201007072 From the above detailed description, it will be apparent to those skilled in the art that the present invention can achieve the foregoing objects and is in accordance with the provisions of the Patent Law. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective exploded view of the present invention, and shows the consistency of assembly moving lines; Fig. 2 is a schematic sectional view of Fig. 1; Fig. 3 is a schematic diagram showing the heat dissipation path of the present invention. Schematic diagram; Figure 4 is a schematic cross-sectional view of a conventional heat sink. [Explanation of main component symbols] (conventional part) Lamp cap 81 Lamp housing 82 Light source 83 Semi-spherical shape 84 Funnel-shaped space 85 (part of the invention) Lamp housing 1 accommodating space 11 Opening 111 Step structure 12 Wide diameter surface 121 Transverse surface 122 Narrow-diameter surface 123 Rib 13 Lamp cap 2 Light-emitting unit 21 12 201007072 Circuit board 211 Heat-dissipation layer 213 Abutment 22 Heat-conducting layer 24 Limiting piece 3 Elastic waterproof ring 5 ❹ Shell 7 Light source 212 Photoreceptor 214 Perforation 23 Outer peripheral surface 25 Waterproof glass 4 Locking cover 6 slot 71
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