201042204 、 1 六、發明說明： 【發明所屬之技術領域】 本發明涉及一種照明裝置，尤其涉及一種具有較佳 散熱效率之照明裝置。 【先前技術】 目前，發光二極體（Light Emitting Diode，LED)因具 光質佳及發光效率高等特性而逐漸取代冷陰極螢光燈 Λ (Cold Cathode Fluorescent Lamp，CCFL) ’ 成為照明裝置 Ο 中之發光元件，具體可參閱Michael S. Shui•等人於文 獻 Proceedings of the IEEE，Vol. 93，No. 10 (2005 年 10 月）中發表之 “Solid-State Lighting: Toward Superior Illumination”一文。 發光二極體於使用過程中之穩定性容易受周圍溫 度之影響，例如，當溫度過高時，發光二極體之發光強 度容易發生衰減，從而導致其使用壽命變短。 ❹ 有鑒於此，提供一種具有較佳散熱效率之照明裝置 實為必要。 【發明内容】 下面將以實施例說明一種具較佳散熱效率之照明 裝置。 一種照明裝置，包括一散熱單元及至少一固態光 源。該散熱單元包括一柱狀主體部及設置於該柱狀主體 3 201042204 1 部一端之複數個散熱鰭片組。該複數個散熱縛片組沿該 . 狀主體4之延伸方向依次套^於該柱狀主體部上且 間隔排布，每個散熱鰭片組包括複數個環繞該柱狀主體 部呈輻射狀均勻分佈之散熱鰭片。該至少一固態光源設 置於該柱狀主體部之遠離該複數個散熱鰭片組之另一 端。 相對於習知技術，所述照明裝置設置有散熱單元， ❹該散熱單s包括柱狀主體部及複數個散熱縛片組，其 中，該柱狀主體部上設置固態光源，該固態光源於發光 時所散發出之熱i可經由柱狀主體部傳導至散熱韓片 上進行散熱，使得其可保持於適當之溫度下工作，故其 發光特性得到有效保障；此外，相鄰兩散熱鰭片之間之 間隔可增強空氣對流，有效提高照明裝置之散熱效率。 【實施方式】 下面將結合圖式，以對本發明實施例作進一步之詳 〇 細說明。 請參閱圖1，本發明第一實施例提供了一種照明裝 置100，其包括一散熱單元10及複數個固態光源18。 5亥散熱單元10包括一柱狀主體部12及複數個散熱 鰭片組16。其中，該柱狀主體部12包括沿其延伸方向 相連接之一支撐部12〇及一承載部122。每個散熱鰭片 組16包括一中空柱狀環套ι6〇，以及複數個由該中空 柱狀環套160向外延伸所形成之散熱鰭片ι62，該複數 4 201042204 個散熱鰭片162環繞3亥中空柱狀環套i6〇均勻分佈形成 —輻射狀，且每個散熱鰭片162均為平板狀。 ^ - 本實施例令’該支撐部具有一圓柱狀輪廓。該 承載部122具有一圓臺狀輪廓，且該圓臺狀輪廓遠離該 散熱鰭片組16之一端大於其鄰近該散熱鰭片組16之另 ^，使知其达離该散熱鰭片組16之一端具有一面積 較大之端面122Α，以設置該複數個固態光源18。該固 〇 _光源18可具體為一發光二極體。可理解，該照明裝 置100可進一步包括一設置於該承載部122上並與該端 =122Α相接觸之電路板19，該複數個固態光源切可 女裝於該電路板19上’從而藉由連接外部電源對其供 電。工作時’該固態光源18藉由該電路板19與該柱狀 主體。Ρ 12形成熱性連接，其於發光時所散發出之孰量 可經由該電路板19傳導至該柱狀主體部12上，進而、細 由中空柱狀環套⑽再傳導至該複數個散熱籍片⑹ 〇上進仃散熱。該固態光源18由此可保持 下工作，故其發光特性得到有效保障。 / 皿度 =空柱狀環套16〇緊密套設於該柱狀主體部12 立：固散熱鰭片組16之複數個散熱鰭片“ 與其相鄰之散埶鳍W 柱狀抒乂 之複數個散熱鰭片162沿該 y ° 之延伸方向相對齊並且基本平行，從而 开> 成複數個與柱狀主體％ ^ 2 # 氣體流通路徑S。另；V2之㈣方向相平行之第一 另’相鄰兩散熱鰭片組16之間之間 5 201042204 隔16A處形成一環繞該柱狀主體部12之第二氣體流通 路徑T。該複數個第一氣體流通路徑S與該複數個第二 氣體流通路徑T交叉設置，其可促進氣體流通，使得散 熱鰭片162上之熱量可更快更均勻地散發至外界空氣 中，從而增強照明裝置100之散熱效率。 可理解地，由於固態光源18設置於該承載部122 之遠離該複數個散熱鰭片組16之一端，當該複數個散 熱鰭片組16未能及時散發熱量時，該固態光源18發出 〇 之熱量亦可藉由該承載部122直接散熱，從而避免固態 光源18上之熱量因不能及時散發造成之熱量堆積現 象。 該承載部122可具有其他變更實施方式，以設置更 多固態光源，如圖2所示，本發明第二實施例提供了一 種照明裝置200，其與第一實施例提供之照明裝置100 基本相同，差別在於：承載部222之遠離散熱鰭片組 Ο 26之一端進一步包括複數個傾斜面222B，該複數個傾 斜面222B環繞端面222A且與該端面222A形成一鈍角 Θ，每個傾斜面222B上對應設置一固態光源28。該複 數個傾斜面222B上所設置之複數個固態光源28可擴 展照明裝置200之照明範圍及發散角度，使得照明裝置 200可適用於如道路、舞臺等需要大範圍照明之場合。 另，該複數個散熱鰭片262可直接由該柱狀主體部 22延伸出來，使得該柱狀主體部22及複數個散熱鰭片 6 201042204 組26可一體成形，從而簡化制程及安裝工序。該柱狀 主體部22及複數個散熱鰭片組26之製作材料 鋁、銅及其合金。 本發明第二實施例進一步提供了 一種照明裝置 300，其與第一實施例提供之照明裝置1〇〇基本相同， 差別僅在於：承載部322鄰近散熱鰭片組36之一端部 32A具有一圓柱狀輪廓，而其遠離該散熱鰭片組36之 ❽一端部32B具有一正棱臺狀輪廓，該正棱臺狀輪廓包 括六個側面，即六個傾斜面322B ,該六個傾斜面322β 上可對應設置六個固態光源38,而該棱臺狀輪廓之端 面322A上設置一固態光源38。 綜上所述，本發明確已符合發明專利之要件，遂依 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，自不能以此限制本案之申請專利範圍。舉凡熟 悉本案技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】 圖1係本發明第一實施例提供之照明裝置之結構 示意圖。 圖2係本發明第二實施例提供之照明裝置之結構 不意圖。 圖3係本發明第三實施例提供之照明裝置之結構 7 201042204 示意圖。 . 【主要元件符號說明】 . 照明裝置 散熱單元 柱狀主體部 散熱鰭片組 固態光源 ^ 電路板 間隔 支撐部 承載部 端面 中空柱狀環套 散熱鰭片 Q 傾斜面 第一氣體流通路徑 第二氣體流通路徑 端部BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting device, and more particularly to a lighting device having better heat dissipation efficiency. [Prior Art] At present, the Light Emitting Diode (LED) is gradually replacing the Cold Cathode Fluorescent Lamp (CCFL) as a light fixture with high light quality and high luminous efficiency. For the illuminating element, see "Solid-State Lighting: Toward Superior Illumination" by Michael S. Shui et al., Proceedings of the IEEE, Vol. 93, No. 10 (October 2005). The stability of the light-emitting diode during use is susceptible to ambient temperature. For example, when the temperature is too high, the light-emitting diode is easily attenuated, resulting in a shortened service life. ❹ In view of this, it is necessary to provide a lighting device with better heat dissipation efficiency. SUMMARY OF THE INVENTION A lighting device having better heat dissipation efficiency will be described below by way of example. A lighting device includes a heat dissipating unit and at least one solid state light source. The heat dissipating unit includes a columnar body portion and a plurality of heat dissipating fin sets disposed at one end of the column body 3201042204. The plurality of heat dissipation tab groups are sequentially sleeved on the columnar body portion along the extending direction of the body 4 and spaced apart, and each of the heat dissipation fin groups includes a plurality of radiation uniformities surrounding the columnar body portion. Distributed heat sink fins. The at least one solid state light source is disposed at the other end of the columnar body portion away from the plurality of heat dissipation fin sets. The illuminating device is provided with a heat dissipating unit, and the heat dissipating unit s includes a columnar body portion and a plurality of heat dissipating tab groups, wherein the columnar body portion is provided with a solid state light source, and the solid state light source is illuminating The heat i emitted from the time can be conducted to the heat-dissipating Korean film through the columnar body portion to dissipate heat so that it can be kept at an appropriate temperature, so that the light-emitting characteristics are effectively ensured; in addition, between the two adjacent heat-dissipating fins The spacing can enhance air convection and effectively improve the heat dissipation efficiency of the lighting device. [Embodiment] Hereinafter, the embodiments of the present invention will be further described in detail in conjunction with the drawings. Referring to FIG. 1, a first embodiment of the present invention provides a lighting device 100 including a heat dissipating unit 10 and a plurality of solid state light sources 18. The 5 mer heat dissipation unit 10 includes a columnar body portion 12 and a plurality of heat dissipation fin groups 16. The columnar body portion 12 includes a support portion 12A and a carrier portion 122 connected along the extending direction thereof. Each of the heat dissipation fin sets 16 includes a hollow cylindrical ring cover ι6 〇, and a plurality of heat dissipation fins ι62 formed by the hollow cylindrical ring sleeve 160 extending outward. The plurality of 4 201042204 heat dissipation fins 162 surround 3 The hollow cylindrical ring sleeves i6〇 are uniformly distributed to form a radial shape, and each of the heat dissipation fins 162 is flat. ^ - This embodiment has the support portion having a cylindrical outline. The carrying portion 122 has a truncated cone shape, and the one end of the truncated cone shaped portion away from the heat dissipating fin set 16 is larger than the adjacent one of the radiating fin sets 16 so as to be separated from the radiating fin set 16 One end has a larger end face 122Α to set the plurality of solid state light sources 18. The solid-state light source 18 can be specifically a light-emitting diode. It can be understood that the illuminating device 100 can further include a circuit board 19 disposed on the carrying portion 122 and in contact with the end 122 122. The plurality of solid-state light sources can be cut on the circuit board 19 by Connect to an external power supply to supply power. The solid state light source 18 is operated by the circuit board 19 and the columnar body during operation. The Ρ 12 forms a thermal connection, and the amount of enthalpy emitted during the illuminating can be transmitted to the columnar body portion 12 via the circuit board 19, and then re-conducted by the hollow cylindrical ring sleeve (10) to the plurality of heat dissipation books. The film (6) is heated on the raft. The solid state light source 18 thus maintains its operation, so that its illuminating properties are effectively guaranteed. / dish degree = empty cylindrical ring sleeve 16〇 tightly sleeved on the columnar body portion 12: a plurality of heat dissipation fins of the solid heat dissipation fin group 16 "a plurality of heat dissipation fins adjacent thereto" The heat dissipating fins 162 are aligned and substantially parallel along the extending direction of the y°, thereby opening a plurality of gas flow paths S to the columnar body % ^ 2 #. The other side of the V4 (four) direction is parallel A second gas flow path T surrounding the columnar body portion 12 is formed between the adjacent two heat sink fin groups 5 at a distance of 16A. The plurality of first gas flow paths S and the plurality of second portions The gas flow path T is disposed across, which promotes gas circulation, so that heat on the heat dissipation fins 162 can be dissipated into the outside air more quickly and uniformly, thereby enhancing the heat dissipation efficiency of the illumination device 100. Comprehension, due to the solid state light source 18 When the plurality of heat dissipation fin sets 16 fail to dissipate heat in time, the heat dissipation of the solid state light source 18 can also be performed by the carrier portion. 122 direct heat dissipation, thus avoiding The heat accumulation on the solid state light source 18 may be caused by the heat accumulation phenomenon. The carrier portion 122 may have other modified embodiments to provide more solid state light sources. As shown in FIG. 2, the second embodiment of the present invention provides an illumination. The apparatus 200 is substantially the same as the illumination apparatus 100 provided by the first embodiment, except that one end of the carrier portion 222 away from the heat dissipation fin set 26 further includes a plurality of inclined surfaces 222B surrounding the end surface 222A. And forming an obtuse angle 与 with the end surface 222A, and each of the inclined surfaces 222B is correspondingly disposed with a solid-state light source 28. The plurality of solid-state light sources 28 disposed on the plurality of inclined surfaces 222B can expand the illumination range and the divergence angle of the illumination device 200, The illumination device 200 can be applied to a situation where a large-scale illumination is required, such as a road, a stage, etc. In addition, the plurality of heat dissipation fins 262 can be directly extended from the columnar body portion 22 such that the columnar body portion 22 and the plurality of columns Heat sink fins 6 201042204 Group 26 can be integrally formed to simplify the process and installation process. The columnar body portion 22 and a plurality of heat sink fins The manufacturing material of the group 26 is aluminum, copper and alloys thereof. The second embodiment of the present invention further provides a lighting device 300 which is substantially the same as the lighting device 1〇〇 provided by the first embodiment, except that the bearing portion 322 is adjacent. One end portion 32A of the heat dissipation fin group 36 has a cylindrical profile, and the one end portion 32B away from the heat dissipation fin group 36 has a positive prismatic profile including six sides, that is, six An inclined surface 322B is disposed on the six inclined surfaces 322β, and six solid-state light sources 38 are disposed correspondingly, and a solid-state light source 38 is disposed on the end surface 322A of the prism-shaped contour. In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application in accordance with the law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications made by persons familiar with the art of the present invention in accordance with the spirit of the present invention are intended to be included in the scope of the following claims. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the structure of a lighting device according to a first embodiment of the present invention. Fig. 2 is a view showing the structure of a lighting device according to a second embodiment of the present invention. 3 is a schematic diagram of a structure of a lighting device according to a third embodiment of the present invention. [Main component symbol description] . Lighting device heat dissipation unit column-shaped main body heat dissipation fin group solid-state light source ^ circuit board spacing support portion bearing end surface hollow cylindrical ring sleeve heat dissipation fin Q inclined surface first gas flow path second gas End of circulation path
100、200、300 10 12、22 16、26、36 18、28、38 19 16A 120 122、222、322 122A、222A、322A 160 162、262 222B、322B S T100, 200, 300 10 12, 22 16, 26, 36 18, 28, 38 19 16A 120 122, 222, 322 122A, 222A, 322A 160 162, 262 222B, 322B S T
32A ' 32B 832A ' 32B 8