201226776 六、發明說明： 【發明所屬之技術領域】 本發明係有關一種LED燈具，尤指一種具光源分散性 的LED燈具。 【先前技術】 隨者科技日新月異，家庭電器用品逐漸普及，照明設 備亦成為生活中不可或缺之必需品。從早期大量使用的鎢 絲燈泡，現已進步至發光二極體（LED)燈泡，其優點為省 • 電、體積小以及發光亮度更亮。 然而，LED燈具卻具有照明範圍過小的問題，其光線 照射範圍大約僅能達到120度。當LED燈具照射範圍過小， 將使得室内的光線亮度不足，而為了改善光線照射範圍過 小的問題，勢必要增加燈具的數量，以使室内光線亮度充 足。然，此舉亦將造成設置、維護燈具成本以及用電量增 加的問題。 羞 【發明内容】 鑒於上述習知技術之缺失，本發明提供一種具光源分 散性的LED燈具，包括：殼體；電源驅動件，收容於該殼 體中；電路基板，收容於該殼體中，係設置有LED，且該 電路基板係電連接於該電源驅動件，以使該LED獲得供電 而發射光線；燈罩，係與該殼體連接，用以包覆該電路基 板及電源驅動件，以及反射體’係設置於該電路基板上或 該燈罩朝該電路基板之一表面上，用以反射該LED之發射 光線。 3 111835 201226776 前述具光源分散性的LED燈具中，當該LED具有複數 個時，該反射體係設置於該電路基板上而位於該複數個 LED之幾何中心的位置。 前述具光源分散性的LED燈具中，其還包含散熱座， 該散熱座係連接於該電路基板背向該LED光線發射方向之 一側面上，且該散熱座背向該LED光線發射方向之表面上 具有複數散熱柱；此外，該複數個散熱柱之長度係由該表 面中心處逐漸向邊緣處減短。 前述具光線分散性的LED燈具中，該殼體環設於該電 路基板與散熱座的四周處具有複數開孔。 據此，本發明之具光源分散性的LED燈具藉由設置於 該電路基板上的反射體，以克服習知led發光集中的問 題，故可增加LED燈具的光線照射面積及提升明亮度，以 改善習知技術中因燈具之照射範圍過小，致使設置、維護 燈具成本以及用電量增加的問題。此外，本發明之具光源 分散性的LED燈具係利用具有複數個散熱柱長度由散熱座 _ 之表面中心處向外地縮短排列之散熱座，且該殼體上亦設 有複數個開孔，故藉由該散熱座可進一步協助LED熱量的 消散外’透過該殼體上的複數個開孔以及複數個散熱柱， 更提供較佳的熱對流處理，俾提升LED的整體散熱效果， 故可使彳于LED維持在常溫的狀態，而有利於增進LED的發 光效率與使用壽命。 【實施方式】 以下係藉由特定的具體實施例說明本發明之技術内 4 111835 201226776 容，熟悉此技術之人士可由本說明書所揭示之内容輕易地 瞭解本發明之其他優點與功效。本發明亦可藉由其他不同 的具體實施例加以施行或應用。 請參閱第1圖係為本發明具光源分散性的LED燈具1 之立體分解圖，該光源分散性的LED燈具1包括：殼體15、 電路基板11以及燈罩14。須說明的是，本發明之LED燈 具1並不以圖中所示之LED球泡燈為限，亦可應用於其他 類型的LED燈具上。 該電路基板11係收容於殼體15中’該電路基板11 上係設置有LED12以及反射體13，藉由該反射體13以反 射LED12之發射光線，且該電路基板11係電連接於電源驅 動件16，以藉由該電源驅動件16的供電而驅動該電路基 板11的LED12發光，而該電源驅動件16亦收容於該殼體 15中。該反射體13表面塗佈有具反射性的材料，其中， 該反射性材料可為二氧化鈦（Ti0〇或硫化鋅（ZnS);或者， 該反射體13可為反射鏡。 該燈罩14係與該殼體15連接，包覆電路基板11以 及反射體13以防止灰塵侵入該殼體15内，而影響該電路 基板11電信處理或反射體13的反射效率。 可採用卡合或鎖螺絲的連接方式將該燈罩14與該殼 體15連接，或將電路基板11固定於該殼體15内。以第1 圖為例，該電路基板11之邊緣係卡入殼體15内部的溝槽 151中，而該燈罩14之邊緣係卡入殼體15外部的溝槽152 中，藉此可便於組裝，同時可節省成本。 5 111835 201226776 另特別說明的是，由於第1圖中所顯示的電源驅動件 16與電接頭17係可應用一般習知技術，故在此將不為文 贅述。再者，若不考量灰塵侵入的問題，當可省略燈罩14 的設置。 接著，如第2圖所示係為本發明具光源分散性的LED 燈具之反射體反射LED發射光線的反射作動原理圖。如圖 所示，當設置於電路基板11上的LED12所發射的光線L1 射在反射體13上時，該反射體13反射LED12的發射光線 L1而產生反射光L2,藉由所產生的反射光L2而增加LED 12 ® 的照明範圍，即如圖所示，藉由該反射光L2增加光線的照 射角度Θ。 再者，本發明之具光源分散性的LED燈具的反射體並 不限於第1圖之圓柱體，亦可如第3A、3B、3C及3D圖所 示之結構，舉凡可產生反射效果以增加LED12的照明範圍 的結構均可適用。 此外，如第4圖所示，係為本發明之具光源分散性的 $ LED燈具之另一實施例局部結構的切面圖，為簡化說明及 圖式，本實施例僅就與前述第1圖之不同處提出說明，本 實施例中，係將反射體13’設置於燈罩14’朝電路基板 11’的一表面上，故可藉由該燈罩14’之反射體13’反射 自該電路基板11’之LED12的發射光線。 再者，如第5圖所示，係為本發明之具光源分散性的 LED燈具再一實施例的立體分解圖，為簡化說明，此處僅 就與第1圖之不同處提出說明。本實施例之具光源分散性 6 111835 201226776 的LED燈具2還包括散熱座24，且其殼體25具有複數個 開孔251，以及電路基板21上的UD22為複數個。 本實施例中，該反射體23係設置於該複數個led22 之幾何中心的位置，藉此使該複數個LED22所發射的光線 經由反射體23反射後而得到最大的照明範圍以及更為均 勻的亮度，例如，該LED燈具2之LED22所發射的光線經 由反射體23反射後，其照明範圍可大於ι2〇度。 該散熱座24係連接於電路基板21背向lED22光線發 鲁射方向之一側面上’且散熱座24背向lED22光線發射方向 之表面上具有複數散熱柱241，用以傳導設置於電路基板 21上之LED22產生的熱量，且該複數個散熱柱241之長度 係由该表面中心處逐漸向邊緣處減短。 一般而吕，電路基板21中心處的溫度通常較高，故 可藉由位於散熱座24中心處且長度較長的散熱柱241來增 加散熱面積而達到較佳的熱散效果。此外，如第6圖所示， φ由於該殼體25環設於電路基板21與散熱座24四周處具有 複數開孔251 ’且該散熱座24邊緣處的散熱柱241長度較 短，故不會阻擋或妨礙散熱座24中心處空氣的流動，所以 中心處的散熱柱241的熱量可迅速地經由空氣而對流散 逸。因此，藉由該殼體25的開孔251，使得攜帶熱量的熱 空氣能夠快速地從殼體内向四周排出，進而提升散熱效率。 綜上所述’本發明之具光源分散性的LED燈具，可藉 由反射體反射LED所發射的光線，使其照明範圍大於120 度，以增加LED燈具的照射面積及提升明亮度，進而減少 7 111835 201226776 用電量以及設置、維護燈具的成本。此外，本發明之具光 源分散性的LED燈具在提升照射面積的同時，亦具有提升 LED散熱的效果，故可使得LED燈泡能維持在常溫的狀態， 而有利於增進LED燈泡的發光效率與使用壽命。 上述實施例僅例示性說明本發明之原理及其功效，而 非用於限制本發明。任何熟習此項技藝之人士均可在不違 背本發明之精神及範疇下，對上述實施例進行修飾與改 變。因此，本發明之權利保護範圍，應如後述之申請專利 範圍所列。 【圖式簡單說明】 第1圖係為本發明具光源分散性的LED燈具之立體分 解圖； 第2圖係為本發明具光源分散性的LED燈具之反射體 反射LED發射光線的反射作動原理圖； 第3A、3B、3C及3D圖係分別為本發明具光源分散性 的LED燈具之反射體不同變化例的結構切面圖； 第4圖係為本發明之具光源分散性的LED燈具之另一 實施例局部結構的切面圖； 第5圖係為本發明之具光源分散性的LED燈具再一實 施例的立體分解圖；以及 第6圖係為第5圖之LED燈具之立體組合圖。 【主要元件符號說明】 1 LED燈具 11，11’ 電路基板 12 LED 13, 13’ 反射體 201226776 14, 14’ 燈罩 15 殼體 151，152 溝槽 16 電源驅動件 17 電接頭 Θ 照射角度 2 LED燈具 21 電路基板 22 LED 23 反射體 24 散熱座 241 散熱柱 25 殼體 251 開孔 LI 光線 L2 反射光 111835201226776 VI. Description of the Invention: [Technical Field] The present invention relates to an LED lamp, and more particularly to an LED lamp having a light source dispersion. [Prior Art] With the rapid development of technology, household electrical appliances are becoming more and more popular, and lighting equipment has become an indispensable necessity in life. Tungsten bulbs, which have been used in large quantities in the early days, have progressed to light-emitting diode (LED) bulbs, which have the advantages of saving electricity, small size, and brighter brightness. However, LED luminaires have a problem that the illumination range is too small, and the illumination range is only about 120 degrees. When the illumination range of the LED lamp is too small, the brightness of the indoor light will be insufficient, and in order to improve the problem that the light irradiation range is too small, it is necessary to increase the number of lamps to make the brightness of the room full. However, this will also cause problems in setting up, maintaining fixture costs, and increasing power consumption. [Invention] In view of the above-mentioned deficiencies of the prior art, the present invention provides an LED lamp with light source dispersion, comprising: a housing; a power supply driving member, received in the housing; and a circuit substrate received in the housing An LED is disposed, and the circuit substrate is electrically connected to the power driving component to enable the LED to receive power to emit light; and the lamp cover is connected to the casing to cover the circuit substrate and the power driving component. And the reflector is disposed on the circuit substrate or the lamp cover faces a surface of the circuit substrate for reflecting the emitted light of the LED. 3 111835 201226776 In the foregoing LED lamp with light source dispersion, when the LED has a plurality of LEDs, the reflection system is disposed on the circuit substrate at a position of a geometric center of the plurality of LEDs. The LED lamp having the light source dispersibility further includes a heat sink connected to a side of the circuit substrate facing away from the LED light emitting direction, and the heat sink facing away from the surface of the LED light emitting direction There is a plurality of heat dissipating columns thereon; in addition, the length of the plurality of heat dissipating columns is gradually shortened from the center of the surface to the edge. In the above light-distributing LED lamp, the casing ring is provided at a plurality of openings around the circuit substrate and the heat sink. Accordingly, the LED illuminator with light source dispersion of the present invention overcomes the problem of the conventional LED illuminating concentration by the reflector disposed on the circuit substrate, thereby increasing the light illuminating area of the LED illuminator and improving the brightness. Improvements in the conventional technology due to the small illumination range of the lamps, resulting in the cost of setting and maintaining the lamps and increasing the amount of electricity used. In addition, the light source dispersible LED lamp of the present invention utilizes a heat sink having a plurality of heat dissipating column lengths which are arranged outwardly from the center of the heat dissipating surface, and the housing is also provided with a plurality of openings. The heat sink can further assist the dissipation of the LED heat, and through the plurality of openings and the plurality of heat dissipation columns on the housing, further providing better heat convection treatment, thereby improving the overall heat dissipation effect of the LED, thereby The LED is maintained at a normal temperature, which is beneficial to improve the luminous efficiency and service life of the LED. [Embodiment] The following is a description of the technology of the present invention by way of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the disclosure of the present specification. The invention may also be embodied or applied by other different embodiments. 1 is an exploded perspective view of an LED lamp 1 having a light source dispersion, which includes a housing 15, a circuit substrate 11, and a lamp cover 14. It should be noted that the LED lamp 1 of the present invention is not limited to the LED bulb shown in the figure, and can be applied to other types of LED lamps. The circuit board 11 is housed in the casing 15. The circuit board 11 is provided with an LED 12 and a reflector 13 . The reflector 13 reflects the emitted light of the LED 12 , and the circuit board 11 is electrically connected to the power source. The component 16 drives the LED 12 of the circuit substrate 11 to be illuminated by the power supply of the power driver 16, and the power driver 16 is also housed in the housing 15. The surface of the reflector 13 is coated with a reflective material, wherein the reflective material may be titanium dioxide (Ti0 or zinc sulfide (ZnS); or the reflector 13 may be a mirror. The housing 15 is connected to cover the circuit substrate 11 and the reflector 13 to prevent dust from entering the housing 15, thereby affecting the transmission efficiency of the circuit substrate 11 for telecom processing or the reflector 13. The connection manner of the snap or lock screw can be used. The lamp cover 14 is connected to the casing 15 or the circuit board 11 is fixed in the casing 15. In the first embodiment, the edge of the circuit board 11 is caught in the groove 151 inside the casing 15, The edge of the lamp cover 14 is caught in the groove 152 outside the casing 15, thereby facilitating assembly and saving cost. 5 111835 201226776 Specifically, due to the power supply driver shown in FIG. 16 and the electrical connector 17 can be applied to the conventional art, and therefore will not be described here. Furthermore, if the problem of dust intrusion is not considered, the setting of the lamp cover 14 can be omitted. Next, as shown in Fig. 2 LED lamp with light source dispersion for the present invention The reflective body reflects the reflection of the emitted light of the LED. As shown in the figure, when the light L1 emitted from the LED 12 disposed on the circuit substrate 11 is incident on the reflector 13, the reflector 13 reflects the emitted light L1 of the LED 12. The reflected light L2 is generated, and the illumination range of the LED 12 ® is increased by the generated reflected light L2, that is, the irradiation angle Θ of the light is increased by the reflected light L2 as shown in the figure. The reflector of the dispersive LED illuminator is not limited to the cylinder of FIG. 1 , and may be configured as shown in FIGS. 3A, 3B, 3C and 3D, and any structure that can produce a reflection effect to increase the illumination range of the LED 12 can be used. In addition, as shown in FIG. 4, it is a cross-sectional view of a partial structure of another embodiment of a light-dissipating $LED lamp of the present invention. For simplicity of explanation and drawings, the present embodiment is only for the foregoing In the present embodiment, the reflector 13' is disposed on a surface of the lamp cover 14' toward the circuit board 11', so that the reflector 13' of the lamp cover 14' can be reflected from the surface. The emitted light of the LED 12 of the circuit substrate 11' Further, as shown in Fig. 5, it is an exploded perspective view of still another embodiment of the light source dispersing LED lamp of the present invention. For simplification of description, only the difference from Fig. 1 will be described here. The LED lamp 2 with the light source dispersibility of the present embodiment has a heat sink 24, and the housing 25 has a plurality of openings 251, and the UD 22 on the circuit substrate 21 is plural. In this embodiment, The reflector 23 is disposed at a geometric center of the plurality of LEDs 22, thereby causing the light emitted by the plurality of LEDs 22 to be reflected by the reflector 23 to obtain a maximum illumination range and a more uniform brightness, for example, the LED. After the light emitted by the LEDs 22 of the luminaire 2 is reflected by the reflector 23, the illumination range thereof may be greater than ι 2 。. The heat sink 24 is connected to one side of the circuit board 21 facing away from the light emitting direction of the lED 22 and has a plurality of heat dissipation posts 241 on the surface of the heat sink 24 facing away from the light emitting direction of the lED 22 for conducting on the circuit substrate 21 . The heat generated by the LEDs 22, and the length of the plurality of heat dissipation columns 241 are gradually shortened from the center of the surface toward the edges. Generally, the temperature at the center of the circuit board 21 is generally high, so that the heat dissipation area can be increased by the heat dissipation post 241 located at the center of the heat sink 24 and having a long length to achieve a better heat dissipation effect. In addition, as shown in FIG. 6, φ has a plurality of openings 251 ′ at the periphery of the circuit substrate 21 and the heat sink 24 around the circuit board 21 and the length of the heat dissipation post 241 at the edge of the heat sink 24 is short. The flow of air at the center of the heat sink 24 can be blocked or hindered, so the heat of the heat sink 241 at the center can be quickly convected via air. Therefore, by the opening 251 of the casing 25, the hot air carrying heat can be quickly discharged from the inside of the casing to the periphery, thereby improving the heat dissipation efficiency. In summary, the LED lamp with light source dispersion of the present invention can reflect the light emitted by the LED by the reflector to have an illumination range greater than 120 degrees, thereby increasing the illumination area of the LED lamp and improving the brightness, thereby reducing 7 111835 201226776 Electricity consumption and the cost of setting up and maintaining the luminaire. In addition, the light-distributing LED lamp of the invention has the effect of improving the heat dissipation of the LED while improving the illumination area, so that the LED bulb can be maintained at a normal temperature state, which is beneficial to improving the luminous efficiency and use of the LED bulb. life. The above-described embodiments are merely illustrative of the principles of the invention and its effects, and are not intended to limit the invention. Modifications and alterations of the above-described embodiments can be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, the scope of protection of the present invention should be as set forth in the scope of the patent application to be described later. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of an LED lamp with light source dispersion according to the present invention; FIG. 2 is a reflection actuation principle of a reflector reflecting LED light emitted by a light source with light source dispersion. Fig. 3A, 3B, 3C and 3D are respectively a structural sectional view showing different variations of the reflector of the LED lamp with light source dispersion; Fig. 4 is a light source dispersing LED lamp of the present invention FIG. 5 is a perspective exploded view of another embodiment of the LED lamp with light source dispersion according to the present invention; and FIG. 6 is a three-dimensional combination diagram of the LED lamp of FIG. . [Main component symbol description] 1 LED lamp 11, 11' circuit board 12 LED 13, 13' reflector 201226776 14, 14' lamp cover 15 housing 151, 152 groove 16 power supply unit 17 electrical connector 照射 illumination angle 2 LED lamp 21 circuit board 22 LED 23 reflector 24 heat sink 241 heat sink 25 housing 251 opening LI light L2 reflected light 111835