M424447 五、新型說明、： 【新型所屬之技術領域】 本創作關於一種用於照明燈具之散熱結構，特別是一種用於戶 外照明燈具之散熱結構。 【先前技術】 一般用於戶外或高瓦數的照明燈具，為了防止水氣進入，通常 ^ 會保持密閉的狀況，若照明燈具在驅動點燈以及提供光源時，所 產生的高溫高壓無法有效降低，便會大大影響其發光效率，進而 降低照明燈具的整體壽命。 為因應此種高溫高壓的情況產生，如第1圖所示，習知燈具1 之外殼11通常以金屬材質所製成，並且於外殼之表面11上設置 厚度相同之複數散熱鰭片12，以將燈具1内部的高溫導引至散熱 鰭片12之表面上散發，然由於散熱鰭片之厚度與表面積呈單一形 狀，於實際散熱過程中，熱能通常會集中於位於中央之散熱鰭片 ® 12，進而使得位於二側之散熱鰭片12之散熱效能有限。 有鑑於此，提供一種照明燈具之散熱結構，可平均的將熱能分 散至各散熱鰭片以增加散熱效果，進而有效改善整體照明燈具的 散熱效率，提升照明燈具之使用壽命，乃為此一業界期望達成之 目標。 【新型内容】 本創作之一目的在於提供一用於照明燈具之散熱結構，特別是 M424447 一種可均勻吸收照明燈具之熱能並傳導至外、部之散熱結構。 為了達到上述目的’本創作之照明燈具提供一種散熱結構，該 照明燈具包含一發光源，該散熱結構包含一基座、複數第一散熱 鰭片，該基座具有一上表面及一下表面。其中，該發光源係固定 於該上表面，該等第一散熱鰭片係間隔設置於該下表面且各該 第一散熱鰭片之至少一側面形成有至少二凹陷部。 為了讓上述的目的、技術特徵和優點能夠更為本領域之人士所 知悉並應用’下文係以本創作之數個較佳實施例以及附圖進行詳 細的說明。 【實施方式】 如第2A圖所示，本創作之照明燈具2包含一發光源21，當發光源21驅 動時’除了產生光源外’也會同時產生高溫，因此本創作之照明燈具2係 以散熱結構3作為整_散熱結構。其中，第2A _為發統Μ與散熱 結構3組合後之立體圖’第2B圖係為散熱結構3之立義第3A圖係為 發光源21與散熱結構3組合後之立體剖面圖，第犯圖係為散熱結構3之 立體剖面圖，第3C圖係為第-散熱則32以及第二散熱則％之排列關 係之局部示«，第4圖係為本創作之散熱結構3之上視圖；以及第$圖 係為本創作之照明燈具2之分解示意圖。 於本實施態樣中，如第2 A圖所示，照、明燈具2之發光源2!係為 -電路板2H，並且以複數發光二極體212作為主要之光源發光 源24有複數固定孔213形成於電路板2ιι上並利用螺絲穿過 該等固定孔213以將發光源21鎖附於散熱結構3上，然發光源21 M424447 此外，由於本創作之照明燈具較一般室内燈具容易產生較高的 溫度，考量耐高溫以及耐用程度，因此散熱結構便選自一材質係 選為鋁。於本實施態樣中，基座31、第一散熱鰭片32、第二散熱 鰭片34及鎖固元件35為一體成型，以利用壓鑄方式製造。然由 本領域之技術人員可輕易思及，散熱結構之製造方式不以壓鑄方 式為限，更可選用其他製程，例如翻砂鑄造。 於本創作散熱結構3更具有至少一導線孔36，可使發光源21 之電路板211上之電源線214，經由導線孔36導出，並適可與外 部的電源設置相接。於本實施態樣中，如第2B圖所示，位於基座 3 1之末端係設有二個導線孔36。 如第5圖所示，照明燈具可包含一燈罩22及一防水襯墊23。燈 罩22係罩蓋於發光源21上，為了使燈罩22與基座31卡合後能 保持防水的狀態下，故於基座31之上表面311之周緣處係形成有 一環形溝槽313，以容置防水襯墊23，因此燈罩22藉由防水襯墊 23與基座31卡合後，可達到緊密結合與防水的效果。 上述之實施例僅用來例舉本創作之實施態樣，以及闡釋本創作 之技術特徵，並非用來限制本創作之保護範疇。任何熟悉此技術 者可輕易完成之改變或均等性之安排均屬於本創作所主張之範 圍，本創作之權利保護範圍應以申請專利範圍為準。 【圖式簡單說明】 第1圖係為習知燈具之散熱結構之立體圖 第2A圖係為本創作一實施例之照明燈具與散熱結構之組合立體 M424447 圖； ' 第2B圖係為係為本創作一實施例之散熱結構之立體圖； 第3A圖係為係為本創作一實施例之照明燈具與散熱結構組合後 之剖視圖； 第3B圖係為為本創作一實施例之散熱結構之剖視圖； 第3C圖係為為本創作一實施例之第一散熱鰭片與第二散熱鰭片 之排列關係之局部示意圖； 第4圖係為本創作一實施例之散熱結構之上視圖；以及 第5圖係為本創作一實施例之照明燈具之分解示意圖。 【主要元件符號說明】 1 照明燈具 11 外殼 12 散熱鰭片 2 照明燈具 21 發光源 211 電路板 212 發光二極體 213 固定孔 214 電源線 M424447' i 22 燈罩 23 防水襯整 3 散熱結構 31 基座 311 上表面 312 下表面 313 環形溝槽 31L 長度方向 31W 寬度方向 32 第一散熱鰭片 321 側面 323 凹陷部 32L 第一長度 34 第二散熱鰭片 34L 第二長度 35 鎖固元件 36 導線孔 W1 第一間距 W2 第二間距M424447 V. New description,: [New technical field] This creation relates to a heat dissipation structure for lighting fixtures, in particular to a heat dissipation structure for outdoor lighting fixtures. [Prior Art] Generally used for outdoor or high wattage lighting fixtures, in order to prevent moisture from entering, it is usually kept in a closed state. If the lighting fixture is driving the lighting and providing the light source, the high temperature and high pressure generated cannot be effectively reduced. , it will greatly affect its luminous efficiency, thereby reducing the overall life of the lighting fixture. In order to cope with such high temperature and high pressure, as shown in FIG. 1 , the outer casing 11 of the conventional lamp 1 is usually made of a metal material, and a plurality of heat radiating fins 12 having the same thickness are disposed on the surface 11 of the outer casing to The high temperature inside the lamp 1 is guided to the surface of the heat dissipation fin 12, but since the thickness and surface area of the heat dissipation fin are single, the heat is usually concentrated in the central heat sink fin during the actual heat dissipation process. Therefore, the heat dissipation performance of the heat dissipation fins 12 on the two sides is limited. In view of the above, the heat dissipation structure of the lighting fixture is provided, and the heat energy is evenly distributed to the heat dissipation fins to increase the heat dissipation effect, thereby effectively improving the heat dissipation efficiency of the overall lighting fixture and improving the service life of the lighting fixture. Expected to achieve the goal. [New content] One of the purposes of this creation is to provide a heat dissipation structure for lighting fixtures, especially M424447, a heat dissipation structure that can uniformly absorb the thermal energy of the lighting fixture and conduct it to the outside and the exterior. In order to achieve the above object, the lighting fixture of the present invention provides a heat dissipating structure, the lighting fixture comprising a light source, the heat dissipating structure comprising a base and a plurality of first heat dissipating fins, the base having an upper surface and a lower surface. The light source is fixed on the upper surface, and the first heat dissipation fins are spaced apart from the lower surface, and at least one side surface of each of the first heat dissipation fins is formed with at least two recesses. The above-mentioned objects, features and advantages will become more apparent to those skilled in the art in the <RTIgt; [Embodiment] As shown in FIG. 2A, the lighting fixture 2 of the present invention includes a light source 21, and when the light source 21 is driven, 'in addition to generating a light source, a high temperature is generated at the same time. Therefore, the lighting fixture 2 of the present invention is The heat dissipation structure 3 serves as an integral heat dissipation structure. Wherein, the 2A _ is a perspective view of the combination of the heat exchanger structure 3 and the heat dissipation structure 3; the 2B diagram is the schematic diagram of the heat dissipation structure 3, and the 3A diagram is a perspective sectional view of the combination of the illumination source 21 and the heat dissipation structure 3, The figure is a three-dimensional sectional view of the heat dissipation structure 3, and the third embodiment is a partial view of the arrangement relationship of the first heat dissipation 32 and the second heat dissipation %, and the fourth figure is a top view of the heat dissipation structure 3 of the present invention; And the figure # is an exploded view of the lighting fixture 2 of the present creation. In the present embodiment, as shown in FIG. 2A, the illumination source 2 of the illumination lamp 2 is a circuit board 2H, and the plurality of LEDs 212 are used as the main source. The hole 213 is formed on the circuit board 2 ιι and passes through the fixing holes 213 by screws to lock the illuminating source 21 on the heat dissipating structure 3, but the illuminating source 21 M424447. In addition, since the lighting fixture of the present invention is easier to produce than the indoor luminaire The higher the temperature, the high temperature resistance and the durability, the heat dissipation structure is selected from a material selected from aluminum. In this embodiment, the susceptor 31, the first heat radiation fins 32, the second heat radiation fins 34, and the locking member 35 are integrally formed to be manufactured by die casting. However, it can be easily imagined by those skilled in the art that the heat dissipation structure can be manufactured in a manner not limited to the die casting method, and other processes such as sand casting can be selected. The heat dissipation structure 3 further has at least one wire hole 36, so that the power line 214 on the circuit board 211 of the light source 21 can be led out through the wire hole 36 and can be connected to the external power supply. In the present embodiment, as shown in Fig. 2B, two lead holes 36 are provided at the end of the base 31. As shown in FIG. 5, the lighting fixture may include a lamp cover 22 and a waterproof gasket 23. The lamp cover 22 is covered on the light source 21, and an annular groove 313 is formed on the periphery of the upper surface 311 of the base 31 so that the lamp cover 22 can be kept in a waterproof state after being engaged with the base 31. The waterproof pad 23 is accommodated, so that the lamp cover 22 can be tightly coupled and waterproofed by being engaged with the base 31 by the waterproof pad 23. The above embodiments are only used to exemplify the implementation of the present invention, and to explain the technical features of the present invention, and are not intended to limit the scope of protection of the present invention. Any change or equivalence that can be easily accomplished by those skilled in the art is within the scope of this creation. The scope of protection of this creation shall be subject to the scope of the patent application. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a heat dissipating structure of a conventional lamp. FIG. 2A is a combination of a lighting fixture and a heat dissipating structure of the embodiment of the present invention. FIG. 2B is a diagram of FIG. 3A is a cross-sectional view showing a heat dissipating structure according to an embodiment of the present invention; FIG. 3B is a cross-sectional view showing a heat dissipating structure according to an embodiment of the present invention; FIG. 3C is a partial schematic view showing the arrangement relationship between the first heat dissipation fin and the second heat dissipation fin according to an embodiment of the present invention; FIG. 4 is a top view of the heat dissipation structure according to an embodiment of the present invention; The figure is an exploded view of the lighting fixture of an embodiment. [Main component symbol description] 1 Lighting fixture 11 Enclosure 12 Heat sink fin 2 Lighting fixture 21 Light source 211 Circuit board 212 Light-emitting diode 213 Fixing hole 214 Power cable M424447' i 22 Lampshade 23 Waterproof lining 3 Heat-dissipating structure 31 Base 311 Upper surface 312 Lower surface 313 Annular groove 31L Length direction 31W Width direction 32 First heat sink fin 321 Side 323 recess 32L First length 34 Second heat sink fin 34L Second length 35 Locking element 36 Wire hole W1 One pitch W2 second pitch