201109575 ’ 六、發明說明： 【發明所屬之技術領域】 本發明係關於-種發光二極體燈具，尤係關於 -種可調整照明方向之發光二極體燈具。 【先前技術】 習知照明燈具所消耗的能源極為可觀，發展昭 明節能是重要的新能源科技，而半導體照明採用 ^ • 免度的發光二極體(LED)為光源，該新光源以其高發 =率、節能、長壽、環保(不含汞、有毒氣體)、 啟動快、指向性、耐震及抗衝擊等優點，具有廣泛 取代傳統照明光源的潛力。 應用LED在照明的新光源上，必須配合高效率 的散熱機構以儘量降低LED的結點溫度㈣― tempe她re)，才能發揮上述諸多優點否貝|!照明裝 置的f光免度、使用壽命將大打折扣，影響所及將 使該照明裝置的節能效果不彰’並直接衝擊該照明 裝置的可罪度’引發嚴重的光衰甚至使照明裝置失 效；結點溫度是衡量LED封裝散熱與環境散熱能力 的重要技術指標，由於散熱不良導致的結點溫度升 命’將嚴重影響到光源的發光波長、光強、光效和 使用壽命。 螺旋式燈頭6廣為習知燈具心與旋入式燈座 接合達到與外部電源電連接及支撐燈具之目的，由 201109575 於習知燈具為向其周圍均勻發光，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。另，發 光一極體光源雖具有指向性，但對於沿螺旋式燈頭 的徑向無特定出光要求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具相同的電連接與 基本的照明效果，達到方便將習知燈具直接替換成 發光二極體燈具之目的。惟因上述發光二極體燈具 • 的出光方向與燈頭的旋入方向一致而使發光面積受 限’且散熱面積亦因只能朝背向光源的方向延伸， 除嚴重影響燈具的照明配光與散熱效果，亦造成外 觀過長及燈具重量的欲小不易，因此只適用於例如 小燈泡、指示燈、小夜燈、裝飾燈等較低輸出功率 的發光二極體燈具。 對於沿燈頭旋入的徑向以單邊出光單邊散熱的 • 發光二極體燈具，或具有特定徑向出光的發光二極 體燈具與習知燈具而言，因可延伸較大的發光面積 與散熱面積，從而可應用於較高輸出功率的發光二 極體燈具、提供較大的配光處理空間以得到較佳的 照明效果與較多元的照明應用、提供較佳的散熱效 果以提升發光二極體燈具的光效、穩定性及壽命、 以及美化外觀與輕化燈具等優點。惟，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，然而在缺乏控制照明方向的情況下旋緊時 201109575 往往會與要求的照明方向產生偏差。如要藉旋出燈 頭一角度以達該燈具特定方向的照明，又可能無法 克服電連接及易鬆脫而造成無法長久維持燈具正確 照明方向的困擾，因此不論就習知燈具或發光二極 體燈具而言，該習知燈頭並不適用於須在一特定徑 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 光源設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 氣部設於散熱部及光學部之一端，包括一殼體、一 電路板以及一燈頭。該殼體包括一底板及由該底板 之周緣朝向散熱部及光學部延伸的一環形的側壁， 並由該側壁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。該燈頭設於 殼體之底板的外端’包括一導電套筒及沿軸向插設 於該導電套筒内的一導電柱’該導電柱靠近殼體的 一内端可轉動地穿設於殼體之底板上所設的一通孔 中以將燈頭與殼體樞接’該導電柱遠離殼體的一外 201109575 端伸出導電套筒之外並與導電套筒固定且相互絕 緣該燈頭與殼體之間設有相互配合的調向結構以 調整發光二極體燈具的出光方向。 本發明具有如下優點： 提供一種可旋入傳統燈座且單邊出光單邊散埶 的高光效發光二極體燈具，藉由貼設發光二極體光 源於散熱件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件散發’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。 提供一種可旋入習知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，藉由在殼體與 燈頭之間設置相互配合的調向結構，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9 ’對本發明發光二極體燈耳 予以進一步說明。 、 圖1係本發明發光二極體燈具1〇〇第一實施例 與一燈座400之立體圖，圖2係圖1所示發光二極 體燈具100及燈座400的組裝剖視圖，圖3係圖2 所示發光二極體燈具100中一殼體32的立體圖。該 發光二極體燈具1〇〇主要包括一散熱部1〇、一光學 201109575 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 屬製成。該散熱件11包括一散熱基座111及沿該散 熱基座111 一側凸伸的複數鰭片112,所述散熱基座 111係沿散熱件11之縱向延伸的板體，該散熱基座 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、設置於該導熱基板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 201109575 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為一半圓弧形的透光罩蓋，其係設 於散熱件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 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設於該殼體32内，並藉由複數電線301與發 光二極體光源21的電極213電連接以及藉由一對電 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呈碗狀，其朝向散熱部10及光學部 20 —端開口。該殼體32包括一圓形的底板321及 由該底板321之周緣朝向散熱部10及光學部20延 伸並逐漸向外擴張的一環形的側壁322。該殼體32 的内壁設有複數定位座323以便與電路板31上所設 對應的定位柱311接合以固定該電路板31於該殼體 201109575 32内。該殼體32之側壁322上於靠近散熱部10及 光學部20的一端設有複數氣孔324，以便將電路板 31產生的熱量散出該殼體32外。該殼體32的開口 端用於與散熱部10的散熱件11及光學部20的導光 罩22的底端接合。 該燈頭33設於殼體32的底部外側，包括一導 電套筒331及沿轴向插設於該導電套筒331内的一 導電柱332。該導電套筒331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 3311及位於該環壁3311底端並向外凸出的一錐形 蓋板3312。該環壁3311的外周面形成有螺牙，用 以與旋入式燈座400螺鎖。該蓋板3312的中心處設 有一開孔以供導電柱332穿設。該導電柱332由導 電性佳的金屬製成，其具有靠近殼體32的一内端 3321及遠離殼體32的一外端3322。導電柱332設 於該導電套筒331内且沿軸向延伸，其内端3321與 外端3322沿軸向分別伸出導電套筒331的兩端。該 蓋板3312的内表面鋪設有一絕緣體3314，該導電 柱332之外端3322藉由該絕緣體3314與導嘌套筒 331連為一體並與導電套筒331形成電絕緣。該對 電線302的其中之一將導電柱332的内端3321與電 路板31電連接，該對電線302的其中之另一將導電 套筒331的内壁與電路板31電連接。 201109575 殼體32之底板321的中心處設有一通孔3211， 該導電柱332之内端3321穿過底板321的通孔3211 並與設於底板321内側的一阻擋件303結合，從而 將該導電柱332與殼體32柩接，並以該導電柱332 作為殼體32相對於燈頭33轉動的轉軸。本實施例 中，該阻擋件303為與導電柱332的内端3321鎖合 的一螺母，該螺母與導電柱332之間還可進行膠固 或焊固，以防止螺母與導電柱332之間發生相對轉 • 動。該導電套筒331内設有一彈簧333，該彈簣333 套設於導電柱332之外圍且夾設於殼體32之底板 321與導電套筒331之蓋板3312之間。所述彈簧333 呈壓縮狀態以提供張力，從而防止燈頭33相對於殼 體32在軸向發生相對移動。當燈頭33的導電套筒 331與燈座400螺鎖時，為使燈頭33的導電柱332 相對於殼體32不發生偏擺，該導電柱332之外圍還 套裝有一外徑較大的定位筒334,並將該.彈簧333 ® 套設於該定位筒334之外周面。另外，該定位筒334 靠近導電套筒331之蓋板3312 —端之周緣沿徑向向 外凸設有一承.壓板3341，彈簧333的底端抵壓於該 承壓板3341上。 當燈頭33的導電套筒331與燈座400螺鎖後， 為調整發光二極體燈具100的照明方向，該殼體32 與燈頭33之間設有相互配合的調向結構。該調向結 構包括設於殼體32上的一環形的凹槽326、設於該 11 201109575 凹槽326内的至少一擋止部327及設於燈頭33上的 一凸肋3315。該凹槽326設置在殼體32之底板321 上且與底板321上的通孔3211呈同心設置。燈頭 33與殼體32相枢接在一起時，燈頭33之凸肋3315 凸伸至殼體32之凹槽326内。當燈頭33鎖合於燈 座400内後，旋轉殼體32可使燈頭33之凸肋3315 在殼體32之凹槽326内相對滑動，並藉由凹槽326 内所設擋止部327限制燈頭33與殼體32之間的相 # 對轉動角度。 本實施例中，該殼體32之凹槽326設於底板321 的外端面，該燈頭33之凸肋3315設於導電套筒331 靠近殼體32的一端並朝向殼體32延伸。另外，該 殼體32之底板321的外端面上還設有與通孔3211 同心的一環形的外凸緣325，該外凸緣325圍設於 導電套筒331的外圍以引導導電套筒331的轉動並 φ 具安全保護功能。殼體32之底板321上還設有一線 孔3212以供電連接導電套筒331與電路板31的電 線302穿設。 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 33。該燈座400設有兩不同極性的電觸點，即於收 容空間41内的一内壁上所設的一螺套42及於收容 12 201109575 空間41内的底部中央所設的一簧片43。該螺套42 及簧片43分別藉由接線端子44與外部電源的零線 401及火線402形成電連接。 如圖2所示，該發光二極體燈具100藉由燈頭 33與連接外部電源的燈座400進行電連接並可調整 照明方向。當施力於發光二極體燈具100之殼體32 以將燈頭33旋入燈座400時，最初使燈頭33上的 凸肋3315在殼體32的凹槽326内滑動，直到該凸 肋3315頂住凹槽326内的擋止部327後才使燈頭 33開始隨殼體32轉動，驅使導電套筒331旋入燈 座400的螺套42中，直到使導電柱332的外端3322 抵緊燈座400底部中央的簧片43，達到使燈頭33 的導電套筒331與導電柱332分別與燈座400内具 有兩不同極性的電觸點即螺套42與簧片43電連 接。然後，將殼體32朝相反的方向轉動，使燈頭 33上的凸肋3315與殼體32上的擋止部327分離而 沿殼體32之凹槽326滑動，以致反向旋轉殼體32 時不再對燈頭33施力從而使燈頭33仍與燈座400 維持原鎖緊的電連接狀態。因此，藉由沿相反方向 將殼體32旋轉一定角度可調整發光二極體燈具100 至所需的任何照明方向。在此過程中，由於彈簧333 施加恒定的張力於承壓板3341與殼體32之底板321 上，使殼體32相對於燈座400轉動時保持穩固狀態。 13 201109575 圖4係本發明發光二極體燈具100a第二實施例 之組裝剖視圖，圖5係圖4所示發光二極體燈具100a 中一殼體32a之立體圖。本實施例中，發光二極體 燈具100a之電氣部30a包括電路板31、一殼體32a 及一燈頭33a。該殼體32a與燈頭33a之間藉由導電 柱332樞接並在兩者之間設有相互配合的調向結 構。該調向結構包括設於殼體32a上的一環形的凹 槽326a、設於該凹槽326a内的至少一擋止部327a • 及設於燈頭33a上的一凸肋3315a。當燈頭33a鎖合 於燈座400内後，旋轉殼體32a可使燈頭33a之凸 肋3315a在殼體32a之凹槽326a内相對滑動，並藉 由凹槽326a内所設擋止部327a限制燈頭33a與殼 體32a之間的相對轉動角度。本實施例的發光二極 體燈具100a與圖1至3中所示發光二極體燈具100 的主要區別在於調向結構的設置位置。 • 本實施例中，殼體32a之底板321的外端面凸 伸有與底板321之通孔3211同心的一環形的内凸緣 328。燈頭33a與殼體32a相樞接時，殼體32a之内 凸緣328收容於燈頭33之導電套筒331a内。殼體 32a之凹槽326a設於該内凸緣328之外周面上並靠 近底板321設置。該内凸緣328的外周面上另設置 有一軸向的直槽329，該直槽329與凹槽326a連通 以供凸肋3315a滑入至所述凹槽326a内，該擋止部 327a靠近直槽329設置且擋止部327a的一侧邊與直 14 201109575 槽329的一邊緣對齊。燈頭33a之凸肋3315a設於 導電套筒331a靠近殼體32a的一端並沿徑向朝向殼 體32a之内凸緣328延伸。另外，殼體32a之底板 321的外端面於内凸緣328之外圍設有與該内凸緣 328同軸的一環形的外凸緣325a，該外凸緣325a圍 設於導電套筒331a的凸肋3315a的外圍以引導導電 套筒331a的轉動並具安全保護功能。 圖6係本發明發光二極體燈具100b第三實施例 之組裝剖視圖，圖7係圖6所示發光二極體燈具100b 中一殼體32b之立體圖。本實施例中，發光二極體 燈具100b之電氣部30b包括電路板31、一殼體32b 及一燈頭33b，該殼體32b與燈頭33b之間藉由導 電柱332樞接並在兩者之間設有相互配合的調向結 構。該調向結構包括設於殼體32b上的一環形的凹 槽326b、設於該凹槽326b内的至少一擋止部327b 及設於燈頭33b上的一凸肋3315b。當燈頭33b鎖 合於燈座400内後，旋轉殼體32b可使燈頭33b之 凸肋3315b在殼體32b之凹槽326b内滑動，並藉由 凹槽326b内所設搶止部327b限制燈頭33b與殼體 32b之間的相對轉動角度。本實施例的發光二極體 燈具100b與圖1至3中所示發光二極體燈具100的 主要區別在於調向結構的設置位置。 本實施例中，殼體32b之底板321的外端面凸 15 201109575 伸有與底板321之通孔3211同心的一環形的外凸緣 325b。燈頭33b與殼體32b相樞接時，燈頭33b之 導電套筒331b靠近殼體32b的一端收容於該外凸緣 325b内。殼體32之凹槽326b設於該外凸緣325b 之内周面上並靠近底板321設置，該外凸緣325b的 内周面上另設置有一軸向的直槽329b，該直槽329b 與凹槽326b連通以供凸肋3315b滑入至所述凹槽 326b内，該擋止部327b靠近直槽329b設置且擋止 • 部327b的一側邊與直槽329b的一邊緣對齊。燈頭 33b之凸肋3315b設於導電套筒331b靠近殼體32b 的一端並沿徑向朝向殼體32b之外凸緣325b延伸。 另外，殼體32b之底板321的外端面設有與外凸緣 325b同軸且收容於該外凸緣325b内的一環形的内 凸緣328b，該内凸緣328b與外凸緣325b之間形成 一環形的容置空間，以收容導電套筒331b的凸肋 3315b 。 圖8係本發明發光二極體燈具100c第四實施例 之組裝剖視圖，圖9係圖8所示發光二極體燈具100c 中一定位件335之立體圖。發光二極體燈具100c之· 電氣部30c包括電路板31、殼體32(圖3所示）及一 燈頭33c，該殼體32與燈頭33c相柩接並在兩者之 間設有相互配合的調向結構。該調向結構包括設於 殼體32上的環形的凹槽326、設於該凹槽326内的 至少一擋止部327及設於燈頭33c上的一凸肋 16 201109575 3354。當燈頭33b鎖合於燈座400内後，旋轉殼體 32可使燈頭33c之凸肋3354在殼體32之凹槽326 内滑動，並藉由凹槽326内所設擋止部327限制燈 頭33c與殼體32之間的相對轉動角度。本實施例的 發光二極體燈具100c與圖1至3中所示發光二極體 燈具100的主要區別在於燈頭33c。 本實施例中，燈頭33c除了包括一導電套筒 331c、導電柱332、彈簧333及定位筒334外，還包 括一定位件335。該定位件335包括一圓形的定位 板3351及由該定位板3351之周緣背向殼體32延伸 的一環形的内凸緣3352。該定位板3351背向殼體 32的一側設有複數平行的柱體3353，定位筒334朝 向殼體32的一端對應定位件335之柱體3353相應 地設有複數孔道3342。該燈頭33c之凸肋3354設於 定位件335之定位板3351朝向殼體32的一端面 上。另外，該定位件335的定位板3351之中心設有 供導電柱332穿設的一開孔3355及供電線302穿設 的一線孔3356。 組裝該燈頭33c與殼體32時，定位筒334套設 於導電柱332之外圍並能帶動導電柱332 —起轉 動。定位件335套設於導電柱332之頂端外圍且位 於殼體32之底板321與定位筒334之間，定位件 335之柱體3353收容於定位筒334之孔道3342内 17 201109575 以藉由定位件335帶動定位筒334 —起轉動。定位 件335之凸肋3354設於殼體32之凹槽326内，彈 簧333呈壓縮狀態夾設於定位件335之定位板3351 與定位筒334的承壓板3341之間。定位件335的内 凸緣3352與殼體32的外凸緣325之間形成一收容 空間以容置導電套筒331c靠近殼體32的一端部。 在該發光二極體燈具l〇〇d的燈頭33c旋入或旋 出燈座400的過程中，當燈頭33c之定位件335上 的凸肋3354抵緊殼體32之凹槽326内的擋止部327 時，該定位件335隨殼體32 —起運動並由該定位件 帶動整個燈頭33c轉動。 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 二極體光源於散熱件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件散發，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習知燈座且可調整朝 徑向的任一特定方向出光的發光二極體燈具，藉由 在殼體與燈頭之間設置相互配合的調向結構，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。 18 201109575 综上所述，本發明確已符合發明專利之要件， 遂依法提出專利申請。#，以上所述者僅為本發明 之較仏貝轭例，自不能以此限制本案之申請專利範 圍。T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係圖丨所示發光二極體燈具及燈座的組裝 剖視圖。 圖3係圖2所示發光二極體燈具中一殼體的立 體圖。 圖4係本發明發光二極體燈具第二實施例之組 裝剖視圖。 圖5係圖4所示發光二極體燈具中一殼體之立 體圖。 圖6係本發明發光二極體燈具第三實施例之组 裝剖視圖。 圖7係圖6所示發光二極體燈具中一殼體之立 體圖。 圖8係本發明發光二極體燈具第四實施例之組 19 201109575 裝剖視圖。 圖9係圖8所示發光二極體燈具中一定位件之 立體圖。201109575 ′′. Description of the Invention: [Technical Field of the Invention] The present invention relates to a light-emitting diode lamp, and more particularly to a light-emitting diode lamp with an adjustable illumination direction. [Prior Art] The energy consumed by conventional lighting fixtures is extremely impressive. Development of Zhaoming Energy Saving is an important new energy technology, and semiconductor lighting uses a light-emitting diode (LED) as a light source. = rate, energy saving, longevity, environmental protection (excluding mercury, toxic gases), fast start, directivity, shock resistance and impact resistance, with the potential to widely replace traditional lighting sources. Application of LED in the new light source of lighting, must cooperate with high-efficiency heat dissipation mechanism to minimize the junction temperature of the LED (4) - tempe her re), in order to play the above-mentioned many advantages of the shell |! Will be greatly discounted, the impact will make the lighting device's energy-saving effect is not 'and directly impact the sin of the lighting device' causing serious light decay or even invalidating the lighting device; junction temperature is a measure of LED package heat dissipation and environment An important technical indicator of heat dissipation capability, the temperature rise of the junction due to poor heat dissipation will seriously affect the light-emitting wavelength, light intensity, light efficiency and service life of the light source. The spiral lamp holder 6 is widely used for the purpose of electrically connecting the external lamp to the external power source and supporting the lamp. The lamp is uniformly illuminated by the lamp in the future. The lamp holder can achieve electrical connection and lighting effects. In addition, although the light-emitting one-pole light source has directivity, the light-emitting diode lamp having no specific light-emitting requirement along the radial direction of the spiral base is also used, so that the light-emitting diode lamp can be used as the base. Screwing on the lamp holder can achieve the same electrical connection and basic lighting effect as the conventional lamp, so as to facilitate the direct replacement of the conventional lamp with the light-emitting diode lamp. However, because the light-emitting diode lamp has a light-emitting direction that is consistent with the screw-in direction of the lamp cap, the light-emitting area is limited, and the heat-dissipating area can only extend toward the back light source, except that the lighting light distribution of the lamp is seriously affected. The heat dissipation effect also causes the appearance to be too long and the weight of the lamp to be small, so it is only suitable for low-output LED lamps such as small bulbs, indicator lights, nightlights, and decorative lamps. For a light-emitting diode lamp with a single-sided light-emitting unilateral heat dissipation along the radial direction of the lamp cap, or a light-emitting diode lamp with a specific radial light output and a conventional lamp, the larger light-emitting area can be extended And the heat dissipation area, so that it can be applied to the LED output lamp with higher output power, providing a larger light distribution processing space for better illumination effect and more diverse illumination applications, providing better heat dissipation effect to enhance illumination The efficacy, stability and longevity of the diode lamps, as well as the appearance and light fixtures. However, since the above-mentioned spiral base can only be electrically connected when it is screwed to the socket, the tightening in the absence of control of the illumination direction tends to deviate from the required illumination direction. If you want to illuminate the lamp head at an angle to achieve the specific direction of illumination of the lamp, it may not be able to overcome the electrical connection and easy to loosen, which may not be able to maintain the correct illumination direction of the lamp for a long time, so whether it is a conventional lamp or a light-emitting diode In the case of luminaires, the conventional lamp cap is not suitable for lighting applications that require a particular radial output. 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 sink, 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 casing, a circuit board and a lamp cap. The housing includes a bottom plate and an annular side wall extending from the periphery of the bottom plate toward the heat dissipation portion and the optical portion, and the side wall is joined to the heat dissipation portion and the optical portion. The circuit board is disposed in the housing and electrically connected to the light emitting diode light source. The lamp cap is disposed at an outer end of the bottom plate of the housing and includes a conductive sleeve and a conductive post axially inserted into the conductive sleeve. The conductive post is rotatably disposed adjacent to an inner end of the housing. a through hole provided in the bottom plate of the housing to pivotally connect the lamp cap to the housing. The conductive post extends away from the outer sleeve of the housing 01095075 end and is fixed to the conductive sleeve and insulated from each other. A matching alignment structure is arranged between the housings to adjust the light-emitting direction of the LED lamp. The invention has the following advantages: providing a high-efficiency light-emitting diode lamp which can be screwed into a conventional lamp holder and unilaterally diffused and unilaterally diffused, and the light-emitting surface is attached to the heat-absorbing surface of the heat-dissipating member by attaching the light-emitting diode light source The heat released by the polar body light source is radiated through the heat sink to achieve a stable light-emitting effect that the light-emitting diode lamp is constantly maintained at a low temperature. Providing a light-emitting diode lamp which can be screwed into a conventional lamp holder and can adjust light emitted in any particular direction in the radial direction, and the light-emitting diode is realized by providing a matching alignment structure between the casing and the lamp cap. The polar body luminaire has the effect of adjusting the illumination direction and maintaining a good electrical connection with the external power source. [Embodiment] Hereinafter, a light-emitting diode lamp ear of the present invention will be further described with reference to Figs. 1 to 9'. 1 is a perspective view of a first embodiment of a light-emitting diode lamp according to the present invention and a lamp holder 400, and FIG. 2 is an assembled sectional view of the light-emitting diode lamp 100 and the lamp holder 400 shown in FIG. 2 is a perspective view of a housing 32 of the LED luminaire 100. The LED lamp 1 〇〇 mainly includes a heat dissipating portion 1 , an optical 201109575 portion 20 and an electrical portion 30 . The heat dissipating portion 10 includes a heat dissipating member 11 made of a metal having good thermal conductivity. The heat dissipating member 11 includes a heat dissipating base 111 and a plurality of fins 112 protruding along a side of the heat dissipating base 111. The heat dissipating base 111 is a plate body extending along a longitudinal direction of the heat dissipating member 11. The heat dissipating base 111 The side facing away from the fin 112 is a heat absorbing surface 113. The heat absorbing surface 113 may be a plane or a plurality of planes at different angles according to the requirements of the light distribution, or may be a curved surface. The embodiment of the present invention only Plane for explanation. 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 absorbing surface 113 of the heat dissipation base 111 of the heat dissipating member 11, and includes a rectangular heat-conducting substrate 211, a plurality of light-emitting bodies 212 disposed on the heat-conductive substrate 211, and a heat-dissipating substrate. The plurality of electrodes 213 on the 211, 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 absorption surface 113 of the 201109575 thermal base 111 to transmit the heat generated by the light emitting diode source 21 to the heat dissipation base 111 and the fins 112 of the heat sink 11. Heat is dissipated by heat exchange between the fins 112 and the air. The light guide cover 22 is a semi-circular light-transmissive cover, which is disposed on the heat dissipation base 111 of the heat dissipation member 11 and covers the light-emitting diode light source 21 to provide the light-emitting diode lamp 100. The required illumination distribution, illumination characteristics, and the electrical and electronic components 30 for protecting the LED light source 21 are disposed at the bottom ends of the heat dissipation portion 10 and the optical portion 20, and include a circuit board 31, a casing 32, and a base 33. The circuit board 31 is disposed in the casing 32, and 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 head 33 is screwed in. The socket 400 is connected to an external power source to supply power to the LED light source 21. The circuit board 31 is used to provide driving power, control circuit and power management required for the LED light source 21. The casing 32 has a bowl shape and is open toward the end of the heat radiating portion 10 and the optical portion 20. The housing 32 includes a circular bottom plate 321 and an annular side wall 322 extending from the periphery of the bottom plate 321 toward the heat dissipating portion 10 and the optical portion 20 and gradually expanding outward. The inner wall of the housing 32 is provided with a plurality of positioning seats 323 for engaging with corresponding positioning posts 311 provided on the circuit board 31 to fix the circuit board 31 in the housing 201109575 32. A plurality of air holes 324 are formed in the side wall 322 of the casing 32 adjacent to the heat dissipating portion 10 and the optical portion 20 to dissipate heat generated by the circuit board 31 outside the casing 32. The open end of the housing 32 is 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 base 33 is disposed on the outer side of the bottom of the housing 32 and includes a conductive sleeve 331 and a conductive post 332 axially inserted into the conductive sleeve 331. The conductive sleeve 331 is a cylinder made of a metal sheet with good conductivity and opening toward the housing 32, and includes a ring wall 3311 and a tapered cover 3312 protruding from the bottom end of the ring wall 3311 and protruding outward. . The outer peripheral surface of the ring wall 3311 is formed with a thread for screwing with the screw-in socket 400. An opening is formed in the center of the cover plate 3312 for the conductive post 332 to pass through. The conductive post 332 is made of a highly conductive metal having an inner end 3321 adjacent the housing 32 and an outer end 3322 remote from the housing 32. The conductive post 332 is disposed in the conductive sleeve 331 and extends in the axial direction, and the inner end 3321 and the outer end 3322 extend outwardly from opposite ends of the conductive sleeve 331 respectively. The inner surface of the cover plate 3312 is provided with an insulator 3314. The outer end 3322 of the conductive post 332 is integrally connected with the guide sleeve 331 by the insulator 3314 and electrically insulated from the conductive sleeve 331. One of the pair of wires 302 electrically connects the inner end 3321 of the conductive post 332 to the circuit board 31, and the other of the pair of wires 302 electrically connects the inner wall of the conductive sleeve 331 with the circuit board 31. A through hole 3211 is defined in the center of the bottom plate 321 of the housing 32. The inner end 3321 of the conductive post 332 passes through the through hole 3211 of the bottom plate 321 and is coupled with a blocking member 303 disposed on the inner side of the bottom plate 321 to thereby conduct the conductive The post 332 is coupled to the housing 32 and has the conductive post 332 as a rotating shaft for the housing 32 to rotate relative to the base 33. In this embodiment, the blocking member 303 is a nut that is engaged with the inner end 3321 of the conductive post 332. The nut and the conductive post 332 can also be glued or welded to prevent the nut from between the conductive post 332. Relative rotation occurs. A spring 333 is disposed in the conductive sleeve 331. The magazine 333 is disposed on the periphery of the conductive post 332 and is disposed between the bottom plate 321 of the housing 32 and the cover 3312 of the conductive sleeve 331. The spring 333 is in a compressed state to provide tension to prevent relative movement of the cap 33 relative to the housing 32 in the axial direction. When the conductive sleeve 331 of the lamp cap 33 and the lamp holder 400 are screwed, in order to prevent the conductive post 332 of the lamp cap 33 from being yawed relative to the housing 32, the outer periphery of the conductive post 332 is also provided with a positioning cylinder having a larger outer diameter. 334, and the spring 333 ® is sleeved on the outer circumferential surface of the positioning cylinder 334. In addition, the positioning cylinder 334 is adjacent to the periphery of the cover 3312 of the conductive sleeve 331 and protrudes radially outwardly from a receiving plate 3341. The bottom end of the spring 333 is pressed against the bearing plate 3341. After the conductive sleeve 331 of the lamp cap 33 and the socket 400 are screwed, in order to adjust the illumination direction of the LED lamp 100, the housing 32 and the lamp cap 33 are provided with a matching alignment structure. The directional structure includes an annular groove 326 disposed on the housing 32, at least one stop portion 327 disposed in the recess 326 of the 11201109575, and a rib 3315 disposed on the base 33. The groove 326 is disposed on the bottom plate 321 of the housing 32 and disposed concentrically with the through hole 3211 on the bottom plate 321 . When the lamp cap 33 is pivotally coupled to the housing 32, the rib 3315 of the cap 33 projects into the recess 326 of the housing 32. When the lamp cap 33 is locked in the lamp holder 400, the rotating housing 32 can relatively slid the rib 3315 of the lamp cap 33 in the recess 326 of the housing 32, and is restricted by the stopper portion 327 provided in the recess 326. The phase of the phase between the base 33 and the housing 32 is a rotation angle. In this embodiment, the recess 326 of the housing 32 is disposed on the outer end surface of the bottom plate 321 . The protruding rib 3315 of the base 33 is disposed at an end of the conductive sleeve 331 adjacent to the housing 32 and extends toward the housing 32 . In addition, an annular outer flange 325 concentric with the through hole 3211 is further disposed on the outer end surface of the bottom plate 321 of the housing 32. The outer flange 325 is disposed around the outer periphery of the conductive sleeve 331 to guide the conductive sleeve 331. The rotation and φ have safety protection. A hole 3212 is further defined in the bottom plate 321 of the housing 32 for electrically connecting the conductive sleeve 331 and the electric wire 302 of the circuit board 31. The socket 400 is a conventional screw-in socket. The socket 400 is disposed at one end of the LED device 100 with a cylindrical receiving space 41 for receiving the lamp cap 33 of the LED lamp 100. The lamp holder 400 is provided with two electrical contacts of different polarities, that is, a screw sleeve 42 disposed on an inner wall of the receiving space 41 and a reed 43 disposed at the center of the bottom portion of the housing 12 201109575. The nut 42 and the reed 43 are electrically connected to the neutral line 401 and the live line 402 of the external power source via the terminal 44, respectively. As shown in FIG. 2, the LED lamp 100 is electrically connected to the lamp holder 400 connected to the external power source by the lamp cap 33 and can adjust the illumination direction. When the housing 32 of the LED luminaire 100 is applied to screw the lamp cap 33 into the socket 400, the ribs 3315 on the cap 33 are initially slid in the recess 326 of the housing 32 until the rib 3315 After the blocking portion 327 in the recess 326 is pressed, the lamp cap 33 starts to rotate with the housing 32, and the conductive sleeve 331 is driven into the screw sleeve 42 of the socket 400 until the outer end 3322 of the conductive post 332 is pressed. The reed 43 at the center of the bottom of the socket 400 is electrically connected to the conductive sleeve 331 and the conductive post 332, respectively, and the electrical contacts having two different polarities in the socket 400, that is, the nut 42 and the reed 43. Then, the housing 32 is rotated in the opposite direction, so that the ribs 3315 on the cap 33 are separated from the stoppers 327 on the housing 32 to slide along the grooves 326 of the housing 32, so that the housing 32 is reversely rotated. The base 33 is no longer biased so that the base 33 remains in the original locked electrical connection with the base 400. Thus, the light-emitting diode luminaire 100 can be adjusted to any desired illumination direction by rotating the housing 32 at an angle in the opposite direction. During this process, since the spring 333 applies a constant tension to the pressure receiving plate 3341 and the bottom plate 321 of the housing 32, the housing 32 is kept in a stable state as it rotates relative to the socket 400. 13 201109575 FIG. 4 is an assembled cross-sectional view of a second embodiment of a light-emitting diode lamp 100a of the present invention, and FIG. 5 is a perspective view of a casing 32a of the light-emitting diode lamp 100a of FIG. In this embodiment, the electrical portion 30a of the LED device 100a includes a circuit board 31, a housing 32a and a base 33a. The housing 32a and the base 33a are pivotally connected by a conductive post 332 with a coordinated alignment structure therebetween. The aligning structure includes an annular recess 326a disposed on the housing 32a, at least one stop portion 327a disposed in the recess 326a, and a rib 3315a disposed on the base 33a. When the lamp cap 33a is locked in the socket 400, the rotating housing 32a can relatively slid the rib 3315a of the cap 33a in the recess 326a of the housing 32a, and is restricted by the stopper 327a provided in the recess 326a. The relative angle of rotation between the base 33a and the housing 32a. The main difference between the light-emitting diode lamp 100a of the present embodiment and the light-emitting diode lamp 100 shown in Figs. 1 to 3 is the set position of the steering structure. • In the present embodiment, the outer end surface of the bottom plate 321 of the housing 32a protrudes from an annular inner flange 328 concentric with the through hole 3211 of the bottom plate 321 . When the base 33a is pivotally coupled to the housing 32a, the inner flange 328 of the housing 32a is received in the conductive sleeve 331a of the base 33. A recess 326a of the housing 32a is provided on the outer peripheral surface of the inner flange 328 and disposed adjacent to the bottom plate 321. An axial straight groove 329 is further disposed on the outer circumferential surface of the inner flange 328. The straight groove 329 communicates with the groove 326a for the rib 3315a to slide into the groove 326a. The stop portion 327a is close to the straight portion. The groove 329 is disposed and one side of the stopper portion 327a is aligned with an edge of the straight 14 201109575 groove 329. The rib 3315a of the cap 33a is disposed at one end of the conductive sleeve 331a adjacent to the housing 32a and extends radially toward the inner flange 328 of the housing 32a. In addition, an outer end surface of the bottom plate 321 of the housing 32a is provided at the periphery of the inner flange 328 with an annular outer flange 325a coaxial with the inner flange 328. The outer flange 325a is disposed around the convex portion of the conductive sleeve 331a. The periphery of the rib 3315a guides the rotation of the conductive sleeve 331a and has a safety function. Figure 6 is an assembled cross-sectional view showing a third embodiment of the light-emitting diode lamp 100b of the present invention, and Figure 7 is a perspective view of a casing 32b of the light-emitting diode lamp 100b shown in Figure 6. In this embodiment, the electrical portion 30b of the LED device 100b includes a circuit board 31, a housing 32b, and a base 33b. The housing 32b and the base 33b are pivotally connected by a conductive post 332 and are There is a matching steering structure between them. The aligning structure includes an annular recess 326b disposed on the housing 32b, at least one stop portion 327b disposed in the recess 326b, and a rib 3315b disposed on the base 33b. When the lamp cap 33b is locked in the socket 400, the rotating housing 32b can slide the rib 3315b of the cap 33b in the recess 326b of the housing 32b, and the cap is restrained by the urging portion 327b provided in the recess 326b. The relative angle of rotation between 33b and housing 32b. The main difference between the light-emitting diode lamp 100b of the present embodiment and the light-emitting diode lamp 100 shown in Figs. 1 to 3 is the set position of the steering structure. In this embodiment, the outer end surface of the bottom plate 321 of the housing 32b is convex 15 201109575. An annular outer flange 325b concentric with the through hole 3211 of the bottom plate 321 is formed. When the base 33b is pivotally connected to the housing 32b, the conductive sleeve 331b of the base 33b is received in the outer flange 325b near the end of the housing 32b. A groove 326b of the housing 32 is disposed on the inner circumferential surface of the outer flange 325b and disposed adjacent to the bottom plate 321, and an axial straight groove 329b is disposed on the inner circumferential surface of the outer flange 325b. The straight groove 329b is The groove 326b communicates with the rib 3315b slid into the groove 326b, the stopper portion 327b is disposed adjacent to the straight groove 329b and one side of the stopper portion 327b is aligned with an edge of the straight groove 329b. The rib 3315b of the cap 33b is disposed at one end of the conductive sleeve 331b near the housing 32b and extends radially toward the outer flange 325b of the housing 32b. In addition, the outer end surface of the bottom plate 321 of the housing 32b is provided with an annular inner flange 328b coaxial with the outer flange 325b and received in the outer flange 325b, and formed between the inner flange 328b and the outer flange 325b. An annular receiving space for receiving the ribs 3315b of the conductive sleeve 331b. 8 is an assembled cross-sectional view of a fourth embodiment of a light-emitting diode lamp 100c of the present invention, and FIG. 9 is a perspective view of a positioning member 335 of the light-emitting diode lamp 100c of FIG. The electric unit 30c includes a circuit board 31, a housing 32 (shown in FIG. 3), and a base 33c. The housing 32 is coupled to the base 33c and is provided with a mutual fit therebetween. Tuning structure. The aligning structure includes an annular groove 326 disposed on the casing 32, at least one stopping portion 327 disposed in the groove 326, and a rib 16201109575 3354 disposed on the lamp cap 33c. When the lamp cap 33b is locked in the lamp holder 400, the rotating housing 32 can slide the rib 3354 of the lamp cap 33c in the recess 326 of the housing 32, and the lamp cap is restricted by the stopper portion 327 provided in the recess 326. The relative angle of rotation between 33c and housing 32. The main difference between the light-emitting diode lamp 100c of the present embodiment and the light-emitting diode lamp 100 shown in Figs. 1 to 3 is the lamp cap 33c. In this embodiment, the lamp cap 33c includes a conductive sleeve 331c, a conductive post 332, a spring 333 and a positioning cylinder 334, and a positioning member 335. The positioning member 335 includes a circular positioning plate 3351 and an annular inner flange 3352 extending from the periphery of the positioning plate 3351 toward the housing 32. A plurality of parallel cylinders 3353 are disposed on a side of the positioning plate 3351 facing away from the housing 32. The positioning cylinder 334 has a plurality of holes 3342 corresponding to the cylinders 3353 corresponding to the positioning members 335 at one end of the housing 32. The rib 3354 of the base 33c is disposed on an end surface of the positioning plate 3351 of the positioning member 335 toward the housing 32. In addition, a center of the positioning plate 3351 of the positioning member 335 is provided with an opening 3355 for the conductive post 332 and a wire hole 3356 for the power supply line 302 to pass through. When the lamp cap 33c and the housing 32 are assembled, the positioning cylinder 334 is sleeved around the periphery of the conductive post 332 and can drive the conductive post 332 to rotate. The positioning member 335 is disposed on the outer periphery of the top end of the conductive post 332 and located between the bottom plate 321 of the housing 32 and the positioning cylinder 334. The post 3353 of the positioning member 335 is received in the hole 3342 of the positioning cylinder 334 17 201109575 to be used by the positioning member. The 335 drives the positioning cylinder 334 to rotate. The rib 3354 of the positioning member 335 is disposed in the recess 326 of the housing 32. The spring 333 is sandwiched between the positioning plate 3351 of the positioning member 335 and the bearing plate 3341 of the positioning cylinder 334 in a compressed state. A receiving space is formed between the inner flange 3352 of the positioning member 335 and the outer flange 325 of the housing 32 to accommodate the one end of the conductive sleeve 331c adjacent to the housing 32. During the process of screwing or unspinning the lamp cap 33c of the LED lamp 100d into the lamp holder 400, when the rib 3354 on the positioning member 335 of the lamp cap 33c abuts the block in the recess 326 of the housing 32. At the stop portion 327, the positioning member 335 moves with the housing 32 and the entire positioning portion 33c is rotated by the positioning member. 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 radiated through the heat dissipating surface by affixing the light emitting diode light source to the heat absorbing surface of the heat dissipating member, so that the light emitting diode lamp is stably maintained at a low temperature and stable light output. efficacy. (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 coordinated alignment structure between the housing and the lamp cap. The light-emitting diode lamp has the effect of adjusting the illumination direction and maintaining a good electrical connection with the external power source at the same time. 18 201109575 In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. #, The above is only the example of the yoke of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Any equivalent modifications or variations made by those skilled in the art to the spirit of the present invention should be covered by 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. 2. Fig. 3 is a perspective view showing a casing of the light-emitting diode lamp shown in Fig. 2. Fig. 4 is a sectional view showing the assembly of a second embodiment of the light-emitting diode lamp of the present invention. Fig. 5 is a perspective view showing a casing of the light-emitting diode lamp shown in Fig. 4. Fig. 6 is a sectional view showing the assembly of a third embodiment of the light-emitting diode lamp of the present invention. Fig. 7 is a perspective view showing a casing of the light-emitting diode lamp shown in Fig. 6. Figure 8 is a cross-sectional view showing the group of the fourth embodiment of the light-emitting diode lamp of the present invention. Figure 9 is a perspective view of a positioning member of the light-emitting diode lamp shown in Figure 8.
【主要元件符號說明】 發光二極體燈具 100 、 100a 、100b 、 100c 散熱部 10 散熱件 11 散熱基座 111 趙片 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 、 30a 、 30b 、 30c 電線 301 、 302 阻擋件 303 電路板 31 定位柱 311 底板 321 殼體 32、32a、 32b 通孔 3211 侧壁 322 線孔 3212 、 3356 定位座 323 氣孔 324 外凸緣 凹槽 擋止部 内凸緣 325 ' 325a ' 325b 326、326a、326b 327 ' 327a > 327b 328 > 3352 201109575 直槽 329 ' 329b 燈頭 33 、 33a 、 33b 、 33c 導電套筒 331 ' 331a、 331b 、 331c 環壁 3311 蓋板 3312 絕緣體 3314 導電柱 332 凸肋 3315 、 3315a ' 3315b ' 3354 内端 3321 外端 3322 彈簧 333 定位筒 334 承Μ板 3341 孔道 3342 定位件 335 定位板 3351 柱體 3353 開孔 3355 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[Description of main components] LEDs 100, 100a, 100b, 100c Heat sink 10 Heat sink 11 Heat sink base 111 Zhao 112 Heat absorbing surface 113 Optical part 20 Light-emitting diode light source 21 Thermal conductive board 211 Fixing hole 2111 Body 212 electrode 213 light guide 22 electrical part 30, 30a, 30b, 30c wire 301, 302 blocking piece 303 circuit board 31 positioning post 311 bottom plate 321 housing 32, 32a, 32b through hole 3211 side wall 322 line hole 3212, 3356 Positioning seat 323 Air hole 324 Outer flange groove stop inner flange 325 ' 325a ' 325b 326, 326a, 326b 327 ' 327a > 327b 328 > 3352 201109575 Straight slot 329 ' 329b Lamp head 33 , 33a , 33b , 33c Conductive Sleeve 331 '331a, 331b, 331c Ring 3311 Cover 3312 Insulator 3314 Conductive post 332 Rib 3315, 3315a ' 3315b ' 3354 Inner end 3321 Outer end 3322 Spring 333 Positioning cylinder 334 Bearing plate 3341 Hole 3342 Positioning 335 Positioning Plate 3351 cylinder 3353 opening 3355 lamp holder 400 neutral line 401 fire line 402 accommodating space 41 screw sleeve 42 reed 43 connection Terminal 44