201107657 六、發明說明： 【發明所屬之技術領域】 本發明係關於一種發光二極體燈具，尤係關於 一種可調整照明方向之發光二極體燈具。 【先前技術】 半導體照明採用高功率高亮度的發光二極體 (LED)為光源’該新光源以其高發光效率、節能、長 竒、環保、體積小、啟動快、指向性、耐衝擊及财 震動等優點’具有廣泛取代傳統照明光源的潛力。 習知螺旋式燈頭已廣為傳統燈具用以與旋入式 燈座接合達到與外部電源電連接之目的，由於傳統 燈具為向其周圍發光，因此只要將燈具旋緊於該燈 座即可達到電連接與照明效果；對於沿螺旋式燈頭 的徑向無特定出光差異的發光二極體燈具亦見採用 該燈頭，因此只要將該發光二極體燈具的所述燈頭 旋緊於該燈座即可實現與傳統燈泡相同的電連接與 照明效果，達到方便將傳統燈具直接替換成發光二 極體燈具之目的。 准，對於沿燈頭旋入方向單邊出光單邊散熱的 發光二極體燈具，或具有特定出光方向的發光二極 體燈具及傳統燈具而言，由於上述螺旋式燈頭只有 在旋緊於所述燈座時才能發揮電連接的特性，而此 時因無法控制照明方向往往與要求的照明方向產生 201107657 不同的偏差’如要藉旋出燈頭一角度以達特定方向 的照明’又可能無法克服同時電連接及燈具易旋轉 鬆脫而無法長久維持該照明方向的困擾，因此不論 就傳統燈具或發光二極體燈具而言，該傳統燈頭並 不適用於必須在任一特定徑向出光的照明應用。 【發明内容】 有鑑於此’有必要提供一種可調整照明方向的 發光二極體燈具。 一種發光二極體燈具，包括一散熱部、一光學 部及一電氣部。該散熱部具有一散熱件，該光學部 包括一發光二極體光源及一導光罩，該發光二極體 光源设於散熱件上並與散熱件導熱連接，該導光罩 設於散熱件上並將發光二極體光源罩設於内。該電 氣部设於散熱部及光學部之一端，包括一中空的殼 體、一電路板及一燈頭。該殼體具有靠近散熱部及 光學部的一大端與遠離散熱部及光學部的一小端， 該殼體的大端與散熱部及光學部接合。該電路板設 於該殼體内並與發光二極體光源電連接。該燈頭連 接於殼體之小端上，包括與電路板電連接的一套筒 電極及彈簧電極，該套筒電極套接於殼體之小端 的外周面上，該彈簧電極固設於套筒電極的外端並 與套筒電極相絕緣。 本發明具有如下優點： 201107657 (1) 本發明提供一種可旋入傳統燈座且單邊出光 單邊散熱的高光效發光二極體燈具，藉由貼設發光 二極體光源於散熱基座的吸熱面將該發光二極體光 源發光牯所釋出的熱量經由散熱基座傳至鰭片後散 發，達到該發光二極體燈具恆常維持在低溫升的穩 定出光功效。 (2) 本發明提供一種可旋入傳統燈座且可調整朝 • 徑向的任一特定方向出光的發光二極體燈具，藉由 設置彈簧電極，達到使該發光二極體燈具兼具調整 照明方向並同時與外部電源保持良好電連接之功 效。 【實施方式】 以下參照圖1至圖3,對本發明發光二極體燈具 予以進一步說明。 ❿ 圖1係本發明發光二極體燈具100第一實施例 燈座400之立體圖，圖2係圖丄所示發光二極 體燈具100及燈座400的組裝剖視圖；該發光二極 體燈具100主要包括一散熱部10、-光學部20及 一電氣部30。 散熱部10包括一散熱件11，係由導熱性佳的金 製成該政熱件包括一散熱基座及沿散熱 基座m-側⑽的複數鰭片112，所述散熱基座 1係&放熱件11之縱向延伸的板體，該散熱基座 201107657 111背向鰭片112的一侧為一吸熱面113，所述吸熱 面113依照明配光的需要可以是一平面或呈不同角 度的複數平面，亦可以是一曲面，本發明的實施例 僅以平面作說明。 光學部20設於散熱部10的右側，包括一發光 二極體光源21及一導光罩22。該發光二極體光源 21設於散熱件11之散熱基座111的吸熱面113上， 包括一矩形的導熱基板211、設置於導熱基板211 上的複數發光體212、以及形成於該導熱基板211 上的複數電極213，其中所述發光體212係由至少 一發光二極體（LED )晶片經透明封裝所形成。該 發光二極體光源21之導熱基板211設於散熱基座 111之吸熱面113上，該導熱基板211與散熱基座 111的吸熱面113之間的緊密熱接觸可先在其間塗 抹一層熱介面材料（TIM)，再將螺絲分別穿過導熱基 板211上所設的複數固定孔2111，以便分別鎖固於 散熱基座111對應設置的複數螺孔内，亦可藉由迴 焊方式將發光二極體光源21直接黏貼（SMT)於該散 熱基座111之吸熱面113上，以將發光二極體光源 21所産生的熱量傳輸至散熱件11的散熱基座111 及鰭片112,並藉由鰭片112與空氣進行熱交換而將 熱量散發。 該導光罩22為一圓弧形的透光罩蓋，其係設於 201107657 散熱件11的散熱基座111上並將發光二極體光源21 罩設於内，以提供發光二極體燈具100所需的照明 分佈、發光特性及對發光二極體光源21保護的功 能。 電氣部30設於散熱部10及光學部20的底端， 包括一電路板31、一殼體32及一燈頭33。該電路 板31藉由複數電線301與發光二極體光源21的電 極213電連接並藉由一對電線302與燈頭33電連 接，再將該燈頭33旋入燈座400以與外部電源連接 從而對發光二極體光源21供電。該電路板31用以 提供該發光二極體光源21所需的驅動電源、控制電 路及電源管理。 該殼體32係一中空的杯狀物，用以罩蓋該電路 板31及結合散熱部10與光學部20。殼體32包括 一靠近散熱部10及光學部20的大端321與一遠離 散熱部10及光學部20的小端322。該殼體32之大 端321具有較大開口，用於與散熱部10之散熱件 11及光學部20之導光罩22的底端接合。該殼體32 之小端322具有較小開口，該小端322的外周面設 有螺牙3221以供與燈頭33螺鎖。電路板31收容於 該殼體32的大端321内，該殼體32之大端321於 内壁設有複數定位座3211以便與電路板31上對應 所設的定位柱311接合以固定電路板31。該殼體32 201107657 之大端321於頂端壁面上環設有複數氣孔3212，以 便將電路板31產生的熱量散出。該散熱件11之散 熱基座111沿殼體32之轴向延伸。 該燈頭33包括一套筒電極34及一彈簧電極 35，該套筒電極34為由導電性佳的金屬薄板製成的 一朝向殼體32開口的圓筒，包括一環壁341及位於 該環壁341底端並向外凸出的一錐形蓋板342，該 環壁341的内、外周面同時形成有互補螺牙。該蓋 板342的中心處設有一開孔以供一導電柱343穿 設。該導電柱343藉由在該蓋板342的内側壁面所 鋪設的絕緣體344固定以與套筒電極34形成電絕 緣。 該彈簧電極35固設於套筒電極34之外部並位 於套筒電極34的下方，包括一彈簧351、一絕緣筒 352及一導電板353。該彈簀351的兩端分別連接導 電柱344與導電板353，該絕緣筒352之中心設有 一軸向的通孔3521，該導電板353設於該通孔3521 的底端且該導電板353之周緣與絕緣筒352的底部 相固定。該彈簣351的一部分收容於該絕緣筒352 内，該彈簧351的另一部分則自絕緣筒352之通孔 3521的頂端凸出至通孔3521外，從而彈簧351未 被壓縮時絕緣筒352與套筒電極34間隙一距離。該 絕緣筒352的外徑小於套筒電極34的最小外徑，且 201107657 該絕緣筒352固設導電板353的一端形成沿徑向向 外朝上傾斜的一圓錐面3522，以避免燈頭33旋入 燈座400的過程中絕緣筒352被燈座400底部的凸 % 出物所阻擋而阻礙導電板353與燈座400底部所設 ' 觸點之間的電接觸。另，為達良好的導電效率，所 述導電柱343、彈簧351及導電板353均採用具有 低電阻的材質製成。 $ 組裝時，首先將兩電線302的下端分別焊接於 套筒電極34靠近蓋板342的内壁上及導電柱342凸 伸至套筒電極34内的一内端，然後將所述套筒電極 34之環壁341内周面所設螺牙旋入殼體32之小端 322之外周面所設螺牙以將套筒電極34與殼體32 相鎖固。再將該兩電線302的上端分別焊接於電路 板31的預定位置，並將設於電路板31上的定位柱 311扣接於殼體32所設定位座3211上，然後將已焊 φ 接於發光二極體光源21之電極213的電線301的下 端分別焊接於電路板31的預定位置，待上述電氣部 30組裝完成後再將已結合為一體的散熱部10與光 學部20的底端與殼體32的大端321接合，從而組 成該發光二極體燈具100。 該燈座400為一習用的旋入式燈座，燈座400 朝向發光二極體燈具100的一端設有一圓柱形的收 容空間41，用以收容發光二極體燈具100的燈頭 201107657 該燈座4G0設有兩不同極性的電觸點，即於收 谷空間41内的一内側壁上所哼的 所β又的一螺套42及於底 Μ中央所設的一簧片43。該螺套42及簧片㈣ 別糟由接線端子44與外部電源的零線401及火線 4〇2形成電連接。 如圖2所不，該發光二極體燈具1〇〇藉由燈頭 33與連接外部電源的燈座_進行電連接並可調整 照明方向，其係將燈頭33的套筒電極％外壁所設 螺牙旋入燈座400之内側壁上的螺套42内，在鎖緊 過程中使彈簧電極35中的彈簧351因導電板353與 燈座400底部的簧片43接觸並逐步抵緊該簧片 而在絕緣筒352内壓縮，直到將燈頭33鎖緊於燈座 400上。由於所述彈簧351被壓縮並産生抵緊燈座 4〇〇底部的作用力，從而可將燈頭33旋轉一小於18〇 角度以調整該發光二極體燈具1〇〇至所需的任何照 明方向。该發光二極體燈具的燈頭33螺鎖於習 知燈座400時’不但可確保該發光二極體燈具1〇〇 與外部電源具有良好的電連接，且具有調整該發光 二極體燈具1〇〇至任意照明方向的功效。 圖3係本發明第二實施例發光二極體燈具l〇〇a 與燈座400之組裝剖面示意圖，本實施例之發光二 極體燈具l〇〇a與前一實施例之發光二極體燈具1〇〇 的主要區別在於燈頭33a。本實施例中，燈頭33a 11 201107657 還包括套接在套筒電極34之錐形蓋板342的外表面 上的一托盤36及由該托盤36朝向絕緣筒352垂直 延伸的複數平行的定位桿361。該絕緣筒352上對 應於定位桿361設置有孔道3523，以便將發光二極 體燈具100a的燈頭33a螺鎖於燈座400時提供該定 位桿361在該孔道3523中滑動，達到確保彈簧電極 35在所述燈頭33螺鎖過程中恆常沿軸向移動及強 化彈簧電極35的整體結構，並進一步優化所述發光 二極體燈具l〇〇a調整照明方向時彈簧電極35的導 電板353與燈座400的簧片43間的電連接品質。 由上述的實施方式已進一步清楚說明本發明的 技術特徵及達成之功效，包括： (1) 本發明提供一種可旋入傳統燈座且單邊出光 單邊散熱的高光效發光二極體燈具，藉由貼設發光 二極體光源於散熱基座的吸熱面將該發光二極體光 源發光時所釋出的熱量經由散熱基座傳至鰭片後散 發，達到該發光二極體燈具恆常維持在低溫升的穩 定出光功效。 (2) 本發明提供一種可旋入傳統燈座且可調整朝 徑向的任一特定方向出光的發光二極體燈具，藉由 設置彈簧電極，達到使該發光二極體燈具兼具調整 照明方向並同時與外部電源保持良好電連接之功 效0 12 201107657 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 . 之較佳實施例，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係本發明發光二極體燈具第一實施例與一 燈座之立體圖。 圖2係圖1所示發光二極體燈具及燈座的組裝 剖視圖。 圖3係本發明發光二極體燈具第二實施例與燈 座之組裴剖面示意圖。 【主要元件符號說明】 發光二極體燈具 100、 100a 散熱部 10 散熱件 11 散熱基座 111 鰭片 112 吸熱面 113 光學部 20 發光二極體光源 21 導熱基板 211 固定孔 2111 發光體 212 電極 213 導光罩 22 電氣部 30 電線 301 、 302 電路板 31 定位柱 311 13 201107657 殼體 32 大端 321 定位座 3211 氣孔 3212 小端 322 螺牙 3221 燈頭 33 ' 33a 套筒電極 34 環壁 341 蓋板 342 導電柱 343 絕緣體 344 彈簧電極 35 彈簧 351 絕緣筒 352 通孔 3521 圓錐面 3522 孔道 3523 導電板 353 托盤 36 定位桿 361 燈座 400 零線 401 火線 402 收容空間 41 螺套 42 簧片 43 接線端子 44 14201107657 VI. 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 with adjustable illumination direction. [Prior Art] Semiconductor lighting uses high-power and high-brightness light-emitting diode (LED) as the light source. The new light source has high luminous efficiency, energy saving, long-lasting, environmental protection, small size, fast start, directivity, and impact resistance. Advantages such as financial vibrations have the potential to widely replace traditional lighting sources. Conventional screw-type bases have been widely used for traditional luminaires to be engaged with screw-in sockets for electrical connection with external power sources. Since conventional luminaires are illuminating around them, it is only necessary to screw the luminaires to the sockets. Electrical connection and lighting effect; for the light-emitting diode lamp having no specific light-emitting difference along the radial direction of the spiral lamp cap, the lamp cap is also used, so that the lamp cap of the light-emitting diode lamp is screwed to the lamp socket. It can realize the same electrical connection and lighting effect as traditional light bulbs, and it is convenient to replace traditional lamps directly into light-emitting diode lamps. For a light-emitting diode lamp with a single-side heat dissipation along the direction of the lamp head, or a light-emitting diode lamp with a specific light-emitting direction and a conventional lamp, since the above-mentioned screw-type lamp head is only screwed to the above In the case of the lamp holder, the characteristics of the electrical connection can be exerted. At this time, the inability to control the illumination direction often produces a different deviation from the required illumination direction of 201107657 'if the angle of the lamp head is rotated to achieve a specific direction of illumination' may not be overcome at the same time. The electrical connection and the luminaire are easy to rotate and loose and cannot sustain the illumination direction for a long time, so the conventional lamp head is not suitable for lighting applications that must be emitted in any particular radial direction, regardless of the conventional luminaire or the illuminating diode lamp. SUMMARY OF THE INVENTION In view of the above, it is necessary to provide a light-emitting diode lamp that can adjust the illumination direction. A light-emitting diode lamp includes a heat dissipating portion, an optical portion and an electrical portion. The heat dissipating portion has a heat dissipating member, and the optical portion includes a light emitting diode light source and a light guide cover. The light emitting diode light source is disposed on the heat dissipating member and is thermally connected to the heat dissipating member, and the light guiding cover is disposed on the heat dissipating member The upper LED light source is disposed inside. The electric portion is disposed at one end of the heat dissipating portion and the optical portion, and includes a hollow casing, a circuit board and a lamp cap. The housing has a large end adjacent to the heat dissipating portion and the optical portion and a small end away from the heat dissipating portion and the optical portion, and the large end of the housing is joined to the heat dissipating portion and the optical portion. The circuit board is disposed within the housing and is electrically coupled to the light emitting diode source. The lamp cap is connected to the small end of the housing, and includes a sleeve electrode and a spring electrode electrically connected to the circuit board. The sleeve electrode is sleeved on the outer peripheral surface of the small end of the housing, and the spring electrode is fixed on the sleeve The outer end of the electrode is insulated from the sleeve electrode. The present invention has the following advantages: 201107657 (1) The present invention provides a high-efficiency light-emitting diode lamp that can be screwed into a conventional lamp holder and unilaterally emits light on one side, by affixing a light-emitting diode light source to the heat dissipation base. The heat absorbing surface dissipates the heat released by the illuminating illuminator of the illuminating diode light source to the fin through the heat dissipation base, thereby achieving the stable light-emitting effect of the illuminating diode lamp which is constantly maintained at a low temperature. (2) The present invention provides a light-emitting diode lamp that can be screwed into a conventional lamp holder and can be adjusted to emit light in any particular direction in the radial direction. By providing a spring electrode, the light-emitting diode lamp can be adjusted. The direction of illumination and the ability to maintain a good electrical connection to an external power source at the same time. [Embodiment] Hereinafter, a light-emitting diode lamp of the present invention will be further described with reference to Figs. 1 to 3. 1 is a perspective view of a lamp socket 400 of a first embodiment of a light-emitting diode lamp 100 of the present invention, and FIG. 2 is an assembled cross-sectional view of the light-emitting diode lamp 100 and the lamp holder 400 shown in FIG. It mainly includes a heat dissipating portion 10, an optical portion 20, and an electrical portion 30. The heat dissipating portion 10 includes a heat dissipating member 11 which is made of gold with good thermal conductivity. The heat dissipating member includes a heat dissipating base and a plurality of fins 112 along the m-side (10) of the heat dissipating base, and the heat dissipating base 1 is & a longitudinally extending plate of the heat releasing member 11 , the side of the heat dissipating base 201107657 111 facing away from the fin 112 is a heat absorbing surface 113 , and the heat absorbing surface 113 may be a plane or a different angle according to the requirement of the light distribution light. The complex plane may also be a curved surface, and embodiments of the present invention are described only in terms of planes. The optical portion 20 is disposed on the right side of the heat dissipating portion 10 and includes a light emitting diode light source 21 and a light guide cover 22. The light-emitting diode light source 21 is disposed on the heat absorption surface 113 of the heat dissipation base 111 of the heat dissipation member 11, and includes a rectangular heat conduction substrate 211, a plurality of light-emitting bodies 212 disposed on the heat-conducting substrate 211, and a heat-emitting substrate 211 formed thereon. The upper plurality of electrodes 213, wherein the illuminants 212 are formed by transparent encapsulation of at least one light emitting diode (LED) wafer. The heat-conducting substrate 211 of the light-emitting diode source 21 is disposed on the heat-absorbing surface 113 of the heat-dissipating base 111. The close thermal contact between the heat-conducting substrate 211 and the heat-absorbing surface 113 of the heat-dissipating base 111 can be first applied with a thermal interface therebetween. The material (TIM) is respectively passed through the plurality of fixing holes 2111 provided on the heat-conducting substrate 211 so as to be respectively locked in the plurality of screw holes corresponding to the heat-dissipating base 111, and the light-emitting two can also be re-welded. The polar body light source 21 is directly adhered (SMT) to the heat absorbing surface 113 of the heat dissipation base 111 to transmit the heat generated by the light emitting diode light source 21 to the heat dissipation base 111 and the fins 112 of the heat dissipation member 11, and Heat is dissipated by heat exchange between the fins 112 and the air. The light guide cover 22 is a circular arc-shaped transparent cover, which is disposed on the heat dissipation base 111 of the 201107657 heat sink 11 and covers the light-emitting diode light source 21 to provide a light-emitting diode lamp. 100 required illumination distribution, illumination characteristics and protection of the LED source 21 . The electrical portion 30 is disposed at the bottom ends of the heat dissipation portion 10 and the optical portion 20, and includes a circuit board 31, a casing 32, and a base 33. The circuit board 31 is electrically connected to the electrode 213 of the light-emitting diode light source 21 by a plurality of wires 301 and electrically connected to the lamp cap 33 by a pair of wires 302, and then the lamp cap 33 is screwed into the lamp holder 400 to be connected to an external power source. The light emitting diode source 21 is powered. The circuit board 31 is used to provide driving power, control circuit and power management required for the LED light source 21. The housing 32 is a hollow cup for covering the circuit board 31 and the heat radiating portion 10 and the optical portion 20. The housing 32 includes a large end 321 adjacent to the heat dissipating portion 10 and the optical portion 20 and a small end 322 remote from the heat dissipating portion 10 and the optical portion 20. The large end 321 of the housing 32 has a large opening for engaging the heat sink 11 of the heat radiating portion 10 and the bottom end of the light guide cover 22 of the optical portion 20. The small end 322 of the housing 32 has a small opening, and the outer peripheral surface of the small end 322 is provided with a screw 3221 for screwing with the base 33. The circuit board 31 is received in the large end 321 of the housing 32. The large end 321 of the housing 32 is provided with a plurality of positioning seats 3211 on the inner wall for engaging with corresponding positioning posts 311 on the circuit board 31 to fix the circuit board 31. . The large end 321 of the housing 32 201107657 is provided with a plurality of air holes 3212 on the top wall surface to dissipate heat generated by the circuit board 31. The heat radiating base 111 of the heat sink 11 extends in the axial direction of the housing 32. The lamp cap 33 includes a sleeve electrode 34 and a spring electrode 35. The sleeve electrode 34 is a cylinder made of a metal foil with good conductivity and opening toward the housing 32, and includes a ring wall 341 and the ring wall. A tapered cover plate 342 protrudes outward from the bottom end of the 341, and the inner and outer peripheral surfaces of the ring wall 341 are simultaneously formed with complementary threads. An opening is formed in the center of the cover plate 342 for a conductive post 343 to pass through. The conductive post 343 is fixed by an insulator 344 laid on the inner side wall surface of the cover plate 342 to form an electrical insulation with the sleeve electrode 34. The spring electrode 35 is fixed to the outside of the sleeve electrode 34 and below the sleeve electrode 34, and includes a spring 351, an insulation barrel 352 and a conductive plate 353. The two ends of the through hole 351 are respectively connected to the conductive column 344 and the conductive plate 353. The center of the insulating tube 352 is provided with an axial through hole 3521. The conductive plate 353 is disposed at the bottom end of the through hole 3521 and the conductive plate 353 The circumference is fixed to the bottom of the insulating cylinder 352. A part of the magazine 351 is received in the insulating cylinder 352, and another part of the spring 351 protrudes from the top end of the through hole 3521 of the insulating cylinder 352 to the outside of the through hole 3521, so that the insulating barrel 352 is not compressed when the spring 351 is uncompressed. The sleeve electrode 34 is separated by a distance. The outer diameter of the insulating cylinder 352 is smaller than the minimum outer diameter of the sleeve electrode 34, and 201107657 is fixed to one end of the conductive plate 353 to form a conical surface 3522 inclined upward in the radial direction to avoid the rotation of the lamp cap 33. In the process of entering the socket 400, the insulating cylinder 352 is blocked by the convex portion of the bottom of the socket 400 to impede electrical contact between the conductive plate 353 and the 'contact' provided at the bottom of the socket 400. Further, in order to achieve good electrical conductivity, the conductive post 343, the spring 351 and the conductive plate 353 are made of a material having low electrical resistance. When assembling, the lower ends of the two wires 302 are first welded to the sleeve electrode 34 near the inner wall of the cover plate 342 and the conductive post 342 protrudes to an inner end of the sleeve electrode 34, and then the sleeve electrode 34 is assembled. A screw provided on the inner circumferential surface of the ring wall 341 is screwed into the outer peripheral surface of the small end 322 of the casing 32 to provide a screw to lock the sleeve electrode 34 and the casing 32. The upper ends of the two wires 302 are respectively soldered to predetermined positions of the circuit board 31, and the positioning posts 311 provided on the circuit board 31 are fastened to the set block 3211 of the housing 32, and then the soldered φ is connected to The lower ends of the wires 301 of the electrodes 213 of the light-emitting diode light source 21 are respectively soldered to predetermined positions of the circuit board 31, and after the assembly of the electrical parts 30 is completed, the heat-dissipating portions 10 and the bottom ends of the optical portions 20 are integrated. The large end 321 of the housing 32 is joined to constitute the light-emitting diode lamp 100. The lamp holder 400 is a conventional screw-in lamp holder. The lamp holder 400 is disposed at one end of the LED device 100 with a cylindrical receiving space 41 for receiving the lamp head of the LED lamp 100. The 4G0 is provided with two electrical contacts of different polarities, that is, a screw sleeve 42 of the β side which is smashed on an inner side wall in the valley space 41 and a reed 43 provided at the center of the bottom cymbal. The nut 42 and the reed (4) are electrically connected to the neutral line 401 of the external power source and the live wire 4〇2 by the terminal 44. As shown in FIG. 2, the LED lamp 1 is electrically connected to the lamp holder _ connected to the external power source by the lamp cap 33, and can adjust the illumination direction, which is provided with the snail of the outer wall of the sleeve electrode of the lamp cap 33. The tooth is screwed into the threaded sleeve 42 on the inner side wall of the socket 400, and the spring 351 in the spring electrode 35 is brought into contact with the spring 43 at the bottom of the socket 400 by the conductive plate 353 and gradually abuts against the reed during the locking process. The inside of the insulating cylinder 352 is compressed until the base 33 is locked to the socket 400. Since the spring 351 is compressed and generates a force against the bottom of the base 4, the base 33 can be rotated by an angle of less than 18 以 to adjust the illumination diode 1 to any desired illumination direction. . When the lamp cap 33 of the LED lamp is screwed to the conventional lamp holder 400, it not only ensures that the LED lamp 1 具有 has good electrical connection with the external power source, and has the adjustment of the LED lamp 1 The effect of smashing to any direction of illumination. 3 is a schematic cross-sectional view showing an assembly of a light-emitting diode lamp 10a and a lamp holder 400 according to a second embodiment of the present invention, the light-emitting diode lamp 10a of the present embodiment and the light-emitting diode of the previous embodiment. The main difference between the lamps 1 is the lamp head 33a. In this embodiment, the lamp caps 33a 11 201107657 further include a tray 36 sleeved on the outer surface of the tapered cover plate 342 of the sleeve electrode 34 and a plurality of parallel positioning rods 361 extending perpendicularly from the tray 36 toward the insulation barrel 352. . The insulating cylinder 352 is provided with a hole 3523 corresponding to the positioning rod 361 to provide the positioning rod 361 to slide in the hole 3523 when the base 33a of the LED lamp 100a is screwed to the socket 400, to ensure the spring electrode 35. During the screwing process of the lamp cap 33, the axial structure is constantly moved and the overall structure of the spring electrode 35 is strengthened, and the light-emitting diode lamp 10a is further optimized to adjust the illumination direction when the conductive plate 353 of the spring electrode 35 is The electrical connection quality between the reeds 43 of the socket 400. The technical features and the achieved effects of the present invention are further clarified by the above embodiments, including: (1) The present invention provides a high-efficiency light-emitting diode lamp that can be screwed into a conventional lamp holder and unilaterally emits light on one side. The heat emitted by the light emitting diode light source is transmitted to the fin through the heat dissipation base by emitting the light emitting diode light source on the heat absorbing surface of the heat dissipation base, and is radiated to the fin, and the light emitting diode lamp is constant. Maintain a stable light output at low temperatures. (2) The present invention provides a light-emitting diode lamp that can be screwed into a conventional lamp holder and can be adjusted to emit light in any particular direction in the radial direction. By providing a spring electrode, the light-emitting diode lamp can be adjusted and adjusted. The effect of maintaining good electrical connection with the external power source at the same time. 0 12 201107657 In summary, the present invention has indeed met the requirements of the invention patent, and the patent application is filed according to law. However, the above description is only the preferred embodiment of the present invention, and the scope of the patent application of the present invention cannot be limited thereby. Equivalent modifications or variations made by those skilled in the art to the spirit of the invention are intended to be included in the following claims. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing a first embodiment of a light-emitting diode lamp of the present invention and a lamp holder. Fig. 2 is a cross-sectional view showing the assembly of the light-emitting diode lamp and the lamp holder shown in Fig. 1. Fig. 3 is a cross-sectional view showing the second embodiment of the light-emitting diode lamp of the present invention and the lamp holder. [Description of main components] LEDs 100, 100a Heat sink 10 Heat sink 11 Heat sink base 111 Fin 112 Heat absorbing surface 113 Optical portion 20 Light-emitting diode light source 21 Thermal conductive substrate 211 Fixing hole 2111 Light-emitting body 212 Electrode 213 Light guide 22 Electrical part 30 Wire 301, 302 Circuit board 31 Positioning post 311 13 201107657 Housing 32 Large end 321 Positioning seat 3211 Air hole 3212 Small end 322 Screw 3221 Lamp head 33 ' 33a Sleeve electrode 34 Ring wall 341 Cover 342 Conductive post 343 Insulator 344 Spring electrode 35 Spring 351 Insulating cylinder 352 Through hole 3521 Conical surface 3522 Hole 3523 Conductive plate 353 Tray 36 Positioning rod 361 Lamp holder 400 Neutral line 401 Fire line 402 Containing space 41 Screw sleeve 42 Reed 43 Terminal block 44 14