200901265 九、發明說明： 【發明所屬之技術領域】 本發明係一種放電燈之保險元件及具有這種保險元件 的裝置。 【先前技術】 . 由於尺寸及結構的關係，高壓放電燈（例如水銀蒸汽燈 (HBO燈））對於震動負載特別敏感，例如對於短時間出現的 強度相當大的作用力特別敏感。尤其是在運輸途中最可能 i：-', 受到這一類的震動負載。尤其是功率大於2 kW(尤其是大於 4 kW)的高壓放電燈由於電極尺寸的關係，震動負載造成高 壓放電燈斷裂的風險是不可忽視的。斷裂造成的損害可能 導致高壓放電燈無法使用，因而必須被打成廢品，導致客 戶的滿意度降低。 高壓放電燈的電極系統包含多個零件，其中一種零件 是石英製的支撐件，這種支撐件通常被稱爲支撐管（石英 管）。這些零件（尤其是石英管）是在被封接到一根桿狀的管 子內之後，才被最終固定，然後這根桿狀的管子就成爲放 電燈的軸頸。由於在製造高壓放電燈的過程中，電極系統 大多是被垂直封接，因此有必要將被懸吊起來之電極系統 的可移動零件（尤其是支撐件）固定住或握持住，以免可移 動零件滑脫或掉落。 一種已知的方法是在電極支柱及這一類的支撐件（石 英管）之間插入及翻轉一條很薄的鉬帶’以便將支撐件固定 住，以防止支撐件滑脫。但缺點是零件可能會將鉬帶折斷’ 200901265 並掉落到放電燈的放電室內’因而對放電燈的運轉造成不 利的影響。 另外一個缺點是’只有在多個零件都有利用這種鉬帶 的情況下’才能確保各零件彼此的定中心。而且儘管如此， 定中心的精確性也會受到相當大的限制。 . 另外一個缺點是，這種已知方式的阻尼作用對可能出 現的加速力而言是不夠的。 【發明內容】 本發明的目的是提出一種放電燈之零件用的保險元 件’這種保險元件的作用是確保這些零件之間的相對位 置。尤其是這種保險元件要能夠確保放電燈的固定。 本發明的另外一個目的是提出一種用於放電燈之具有 這種保險元件的裝置，而且這種保險元件除了定位功能 外，還要使放電燈的元件能夠定中心。 採用具有申請專利範圍之獨立申請項之特徵的保險元 件及裝置即可達到上述目的。 ' 根據本發明的第一種觀點設計的保險元件的作用是確 保電燈之電極的一根支柱與一個將支柱抓握住的支撐件之 間的相對位置。保險元件具有一個環形斷面，其中環形斷 面的一個內側至少有部分區域能夠與支柱之外表面上的結 構化區域嚙合。經由這種構造方式可以確保放電燈的零件 之間的相對位置。尤其是在製造放電燈時可以防止支撐件 相對於支柱滑脫。 此外，保險元件的這種構造方式也可以提高抗斷裂穩 -6 - 200901265 定性，尤其是提高對短時間之震動負載的彈性作用。尤_ ^是當一個相當大的電極被固定在支柱上，同時加速力對％ 統造成一個相當大的槓桿力時，可以防止保險元件及/或$ 柱斷裂。 所謂保險元件的環形斷面是指圓形、橢圓形、或是# 他沒有棱角的斷面形狀，但也可能是一種至少有部分區域 是有棱角的斷面形狀。 保險元件的環形斷面最好是一種在旋轉方向上完全封 D 閉的形狀。這種構造方式不僅可以確保前面提及之零件的 位置，而且可以確保這些零件彼此的定中心。 但是也可以將環形斷面設計成在旋轉方向上是張開的 形狀。尤其是在相對而言彈性較大的結構中，具有此種環 形斷面的保險元件可以被安置在電極之支柱的側面。 一種有利的方式是環形斷面的內側至少有一個位置的 內徑小於支柱之外表面上的結構化區域的一個外結構邊的 外徑。在這種情況下，如果將保險元件安置在支柱上，則 \ j 環形斷面與結構邊的直徑關係就可以確保保險元件會穩固 的位於一個最終位置。當保險元件幾乎要掠過結構邊時， 這個直徑關係可以確保保險元件會被固定住’以防止保險 元件滑脫回去。這樣就能夠可靠的將各零件之間的相對位 置固定住。 一種有利的方式是在環形斷面的內側至少設置一個與 支柱的結構化區域嚙合的彈性止動元件。這個彈性止動元 件可以使保險元件更容易被安置在支柱上’而且在掠過結 200901265 構邊時不會受損。此外，這個彈性止動元件還能夠使固定 作用會得更可靠。 保險元件最好具有複數個指向保險元件之中心點的彈 性針腳，而且這些針腳的內徑小於支柱之結構化區域的結 構邊的外徑。 在將保險元件旋緊在支柱上時，這些彈性止動元件會 略微彎曲，並在超過結構邊後被固定住。 一種有利的方式是在保險元件之環形斷內的內側設置 複數個彈性止動元件。這樣做除了能夠更加可靠的確保零 件之間的相對位置外，也可以使定中心變得更精確。 這些止動元件最好是以彼此間隔相同距離的方式配置 在環形保險元件的旋轉方向上，而且這些止動元件最好都 具有相同的形狀及/或尺寸。這樣做的好處是可以形成對稱 的結構，以確保圓柱形支柱及圓柱形支撐件能夠提供精確 的定中心以及二者的相對位置。 保險元件最好是由一種耐高溫的彈性材料製成。一種 ' 特別有利的方式是保險元件至少有一部分的成分是鉬及/ 或至少有一部分的成分是鎢。 一種有利的方式是環形斷面至少在一個位置的內徑小 於支柱之結構化區域之外的外徑。 保險元件之彈性止動元件的彈性作用可以承擔一部分 的震動力。這個效果是經由震動力在時間上的遞延及局部 分配達到的。爲達到這個效果’最好是將保險元件設計成 能夠放置在支撐件的一個與其尺寸能夠精確配合的缺口 200901265 中。 保險元件也能夠防止支柱被過度偏轉，以免支柱撞擊 到支撐件的內沿而造成內沿受損或毀壞。即使有槓桿力出 現，保險元件也可以提供可靠的位置穩定性及定中心性。 根據本發明的另外一種觀點設計的保險元件的作用是 確保電燈之電極的一根支柱與一個支撐支柱用的支撐件之 間的相對位置。保險元件具有一個環形斷面，其中環形斷 面的一個內側至少有部分區域的內徑小於支柱的外徑，尤 其是在保險元件之最終位置的區域會出現這種直徑關係。 保險元件在這個固定位置被固定在支柱上的強度幾乎大到 可以絕對防止支撐件滑脫的程度，尤其是防止朝安置方向 的反方向滑脫。 這種構造方式的保險元件不再要求支柱在保險元件之 最終位置的區域需具有一個結構化區域。同時這種構造方 式的保險元件也可以確保零件在電燈的其他製造步驟中 (尤其是在零件的封接過程）能夠保持彼此的相對位置。 根據以上兩種觀點設計的保險元件都不需要利用鉬帶 將保險元件與其他零件（尤其是支柱及支撐件）固定在一 起。此外，保險元件的這種構造方式也可以防止使用本發 明之保險元件的放電燈發生零件從保1險元1件處斷裂而掉落 到放電室內的問題。 一種有利的方式是，根據第二個觀點設計的保險元件 的環形斷面的內側至少有一個彈性區〗或’同日寺保險元1件在 彈性區域的內徑小於支柱在保險元件之最終位置的區域的 200901265 外徑。這種構造方式可以使保險元件的安置工作變得更容 易，並經由彈性區域的彎曲確保零件的定位不致改變。尤 其是在將保險元件旋緊在支柱上時，這一個（或這些）彈性 區域會朝旋緊方向的反方向被彎曲，因此可以防止保險元 件朝旋緊方向的反方向滑脫。 根據第一種觀點設計的保險元件的其他有利的實施方 式同時也是根據第二種觀點設計的保險元件的有利的實施 方式。 根據這兩種觀點設計的保險元件也可以是圓柱狀的。 這種保險元件的結構最好不僅是在一個平面上伸展，而是 一個帶有至少是部分環繞的側壁的三度空間結構。這種構 造方式使保險元件具有阻尼作用及削弱槓桿力的能力，因 此可以提高抗斷裂穩定性。當這種形狀的保險元件被放置 在支撐件的一個與其尺寸能夠精確配合的缺口中，保險元 件的接觸面就是缺口的內側面，因此可以抵擋撞擊力。這 種實施方式可以改善力的分佈情況。 此外，本發明之另一觀點還提出一種放電燈的裝置， 尤其是一種高壓放電燈的裝置，這種裝置具有一根電極支 柱、一個支撐件、以及一個如本發明之第一觀點或本發明 之第二觀點所述的保險元件。 一種有利的方式是支柱具有一個結構化區域’且該結 構化區域具有至少一個結構邊。這個結構化區域最好具有 至少一個位於支柱之外表面上的切口，同時切口的結構邊 的外徑小於或等於支柱在這個結構化區域之外的外徑。採 -10- 200901265 用這種構造方式時，結構化區域最好也具有切口，而且這 些切口的範圍不應超出支柱在結構化區域之外的外表面的 範圍。切口會形成凹槽，也就是從支柱將一部分材料切除 而形成的凹槽。 如果保險元件的內徑小於切口之結構化邊的外徑，而 且也小於支柱在這個結構化區域之外的外徑，則保險元件 的一個彈性區域可以與這個切口嚙合，因此能夠確保零件 之間的相對位置。 f. 一種有利的方式是結構化區域具有至少一個錐形段。 這個錐形段會朝設置在支柱上的電極的方向逐漸變窄。彈 性區域在保險元件之內側上的固定可以在錐形段的變窄部 分實現。這種構造及配置方式可以防止保險元件在電極方 向上滑脫。 另外一種可行的方式是結構化區域具有至少一個凸 起，該凸起位於支柱的外表面上，且其結構邊的外徑大於 支柱在結構化區域外的外徑。這種構造方式可以達到和前 " 面所述之具有切口的構造方式幾乎相同的效果。這種構造 方式不需從支柱的外表面將材料切除’而是要將材料添加 在外表面上，以形成凸起。因此在這種構造方式中，保險 元件的內徑可以等於或大於支柱在結構化區域之外的外 徑。但重要的是，保險元件的內徑要小於結構化區域之凸 起的結構邊的外徑。這樣就可以在保險元件掠過這個結構 邊時，確保保險元件的位置不會改變，尤其是可以防止保 險元件滑脫。 -11- 200901265 這種具有一個或多個凸起的構造方式也可以將凸起設 計成錐形段，而且可以是將支柱的外表面完全環繞或只有 部分環繞住的錐形段。 同樣的，前面提及的切口也可以是完全環繞或只有部 分環繞住的切口。 根據一種有利的實施方式’保險元件被設置在支撐件 中。在這種實施方式中，支撐件至少有部分區域是中空的， 以供容納保險元件之用。除了可以節省空間及使結構更爲 Η 緊密外，這種實施方式還可以進一步確保保險元件的位置 穩定性及定中心性。 一種有利的方式是支撐件的一個終端具有一個缺口， 保險元件能夠進入這個缺口，而且可以精確的到達其最終 位置。這種構造方式的一個優點是在安置保險元件時，很 容易就可以使保險元件到達最終位置，而且在這個最終位 置具有很好的力學穩定性。此外，這種將保險元件精確的 送達最終位置的方式的另外一個優點是保險元件可以確保 ^ 零件彼此的定中心。 一種有利的方式是，從縱軸的方向看過去，缺口向內 朝支撐件的方向逐漸變窄，並在內止檔處有一個鑽孔，而 且這個鑽孔的內徑大小剛好能夠讓保險元件被放進去。 此外，本發明還包括一種具有本發明之裝置的放電 燈，尤其是高壓放電燈。本發明之裝置具有一根電極支柱、 一個支撐件、以及一個保險元件。放電燈可以具有前面提 及之各種有利的實施方式的裝置。 -12- 200901265 【實施方式】 以下配合圖式及實施例對本發明的內容做進一步的說 明。 在圖式中’相同或相同作用的元件均以相同的元件符 號標示。 第1圖以示意方式顯示一個具有陰極（1)及陽極（2)之高 壓放電燈⑴的側視圖。陰極（1)固定在一根支柱（3 )上。陽極 (2)固定在一根支柱（4)上。支柱（3，4)分別連接到一個由石英 管構成的支撐件（5，6)。以上提及的高壓放電燈（I)的零件均 位於一個石英玻璃製的放電容器（7)內。放電容器（7)具有一 個橢圓形的放電管殼（71)’支柱（3,4)及固定於其上的陽極（2) 及陰極（1)均伸入放電管殼（7 1)。橢圓形放電管殼（7 1)的內部 構成放電室。放電管殼（71)的軸頸（72,7 3)分別從放電管殼 (7 1)的兩端向外延伸。 軸頸（7 2，7 3)分別連接到一個連接座（8，9)。 如第1圖所示，在支撐件（5)內有設置一個保險元件 (10)。保險元件（10)又稱爲保險墊片或止動墊片。—個具有 支撐件（5)、支柱（3)、以及保險元件（1 〇)的裝置（丨1)被封接 到軸頸（73)內。 同樣的，一個設置在支撐件（6)內的保險元件（1 2)及一 個具有支柱（4)、支撐件（6)、以及保險元件（12)的裝置（13) 被封接到軸頸（72)內。 以上提及的封接是一種氣密封接。 第2圖顯示本發明之裝置（11)的一個實施例的一個立 -13- 200901265 體透視圖。裝置（11)具有一個圓柱形支撐件（5)。支撐件（5) 具有一個讓支柱（3)插入的貫穿鑽孔（54)。支撐件（5)面對陰 極（1)的那一個終端（51)具有一個缺口（53)。缺口（53)在縱軸 A的方向上有一個錐形區域（53a)，以及一個與錐形區域（53a) 連接的圓柱形區域（53 b)。缺口（5 3)先是在朝向另外一個終 端（52)的方向上逐漸變窄，然後過渡到圓柱形區域（53b)。 這個具有一定長度的圓柱形區域（5 3b)在這段長度內的直徑 是保持不變的。 與陰極（1)背對的終端（5 2)有連接一個保險元件（未在 第2圖中詳細繪出）作爲裝置（1 1)的結尾。 支柱（3)的外表面（3a)上有形成一個結構化區域（31)。如 第2圖所示，支撐件（5)與支柱（3)彼此的定位方式是結構化 區域（31)被固定在支撐件（5)內。這種構造方式的設計是將 保險元件（10)的最終位置定位在圓柱形區域（53b)的下止 檔，並與結構化區域（31)嚙合。也就是在支柱（3)及保險元 件（1 0)之間形成嚙合。經由裝置（1 1)的這種構造方式，一方 面可以確保支柱（3)與支撐件（5)及保險元件（10)之間的相對 位置，另一方面可以經由保險元件（1 〇)精確地定位確保零 件在圓柱形區域（5 3b)的定中心性。此外，這種構造方式還 可以改善對加速力的阻尼作用，而且更起夠承受作用在支 柱（3)上的槓桿力。這種構造方式可以大幅降低或完全防止 加速力造成的損害，尤其是保險元件（10)及/或支柱（3)的斷 裂。 第3圖是以示意方式顯示支柱（3)的側視圖。在本實施 -14- 200901265 例中，支柱（3)的總長度11爲62 mm。結構化區域（3 1)(尤其 是結構化區域（31)的上緣部分）與支柱（3)之上終端的距離 12 爲 3 6 · 5 mm。 此外，支柱（3 )在結構化區域（3 1)之外的外徑d 1爲8 m m。 第4圖顯示如第3圖之支柱（3)的一個部分放大圖。從 這個放大圖可以看出，結構化區域（31)有許多個凹槽，具 其斷面具有一鋸齒狀的輪廓。第4圖繪出的凹槽數量僅是 —個例子，目的只是顯示結構化區域（31)的形狀。理論上 r 只需一個這樣的凹槽即可構成一個結構化區域（31 )，並使 該結構化區域（3 1)具有確保支柱（3 )、支撐件（5 )、以及保險 元件（1 0)之間的相對位置的功能。在第4圖顯示的實施例 中，結構化區域（3 1)的長度13爲大約5mm。同樣的，這個 値也只是一個例子，實際値還可以更小。 一種有利的方式是結構化區域（3 1)在旋轉方向上將外 表面（3 a)整圏環繞住。但結構化區域（3 1)也可以只是在旋轉 方向上將外表面（3 a)部分環繞住。 ' 在第4圖顯示的實施例中，一個凹槽的長度（或稱爲高 度）14爲0.25 mm。一種有利的方式是減少凹槽的數量，這 樣凹槽的長度14就會大於0.25 mm。 第5圖是以示意方式顯示第4圖的一個部分斷面 (31a)。第5圖顯示的是結構化區域（31)的第一個實區例。 從第5圖可以看出’支柱（3)凸部分材料被切除，因而形成 切口（311，312,313)。切口（311，312,313)的最大深度爲11，且 其尖銳的尾部構成結構邊（311a,312a)。結構邊（3iia,312a) -15- 200901265 是環繞狀的’並不會延伸到外表面（3 a)之外。在第5圖的實 施例中’結構化區域（31)的直徑小於或等於支柱（3)在結構 化區域（31)之外的直徑dl。 此外’從第5圖還可以看出，切口（ 3 1 1，3 1 2,3 1 3 )的形 狀使結構化區域（3 1)形成複數個一個接一個的錐形段 (314,315,316)。 爲了配合如第5圖之支柱（3)的構造方式，保險元件（10) 之環形斷面（見第7圖）的內徑d3應小於支柱（3)的外徑dl。 這樣在安置保險元件（10)時，保險元件（1〇)的內側（101)或是 在內側（101)上形成的彈性區域（102至107)(見第7圖）會與 結構化區域（31)嚙合，並嵌入切口（311,312,313)其中之一。 第6圖顯示支柱（3)之另外一個實施例的如第4圖之部 分斷面（31a)的放大圖。這種構造方式是在結構化區域（31) 的外表面（31a)上形成凸起（311’，312’，313’），由於凸起 (3 11’，3 12’，3 13 s)延伸到外表面（3a)之外，因此其直徑大於支 柱（3 )在結構化區域（3 1)之外的直徑d 1。 在這種構造方式中，凸起（311，，312’，313，）具有一鋸齒 狀的輪廓，並形成結構邊（3 1 1 a ’，3 1 2 a ’，3 1 3 a ’）。兩個相鄰凸 起（311’，312’，313’）之間的深度11要能夠從結構邊（31：^’）到 達假想的外表面（3 a)。該深度11也可以大一些或小一些。 最好是將凸起（3 i Γ，3 1 2 ’，3 1 3 ’）設計成將支柱（3 )整圈環 繞住的封閉式構造。 根據第6圖顯示的實施例，結構化區域（3 1)具有複數個 錐形段（3 1 4 ’，3 1 5 ’，3 1 6 ’），而且是沿著縱軸A的方向一個接 -16- 200901265 一個呈階梯狀排列。採用這種構造方式時可以將保險元件 (10)的內徑d3設計成大於支柱（3)的外徑dl。這樣在將保險 元件（10)設置在支柱（3)上時，就可以使保險元件（10)的內側 (101K尤其是彈性區域（102 至 107))嵌入凸起 (3 1 1 ’，3 1 2 ’，3 1 3 ’）之間的間隙。 第 5圖及第 6圖顯示的錐形段（（314,315,316 ; 314’，315’，316’）僅是作爲說明用的例子，其數量及形狀都是 可以變化的。 "' 第7圖顯示本發明之保險元件（10)的一個實施例。這個 實施例的保險元件（10)是一個僅在一個平面（也就是繪圖平 面）上伸展的圓片狀的保險元件。此外’保險元件（10)具有 一個封閉的環形斷面。對本發明的保險元件（10)而言’重 要的是內側（1 〇 1)之形狀及尺寸要能夠與一個結構化區域 (3 1)嚙合。因此內徑d 3的大小應配合支柱（3)的外徑d 1設 計。 在第7圖顯示的實施例中，保險元件（1 〇)具有一個外徑 ^ d2。保險元件（1 〇)具有複數個以彼此間隔相同距離的方式配 置在旋轉方向上的彈性區域（1 0 2至1 0 7)’而且相鄰彈性區 域（102至107)之間的材料會被切除’使彈性區域（1〇2至107) 彼此隔開。這些梯形彈性區域（丨〇2至1〇7)的作用相當於止 動銷，可以與切口（311,312,313)嚙合’或是嵌入凸起 (3 1 1，，3 1 2 ’，3 1 3 ’）之間的間隙。 這種彈性區域（1 0 2至1 0 7)的設計使保險元件能夠以很 簡單且省力的方式被推動及安置在支柱（3)上’在第5圖的 -17- 200901265 實施例中，彈性區域（102至107)會朝與移動方向相反的方 向彎曲。直到到達一個切口（3 11,3 12,3 13)時，向後彎曲的 彈性區域（102至 107)才會猛然向前彎曲，並與切口 (3 1 1，3 1 2，3 1 3 )嚙合。 如第7圖所示，從保險元件（1 0)的邊緣起算，彈性區域 (102至107)的深度爲t2，缺口部分的深度爲t3。此外，每 —個彈性區域（102至107)的角段寬度爲wl，缺口部分的角 段寬度爲w 2。 ¢--、 1 例如，在本實施例中，寬度爲w 1之角段的角度爲4 0 度，寬度爲w2之角段的角度爲20度。此外，深度t2爲3.9 mm，深度t3爲1.5 mm。內徑d3爲7.2 mm，保險元件（10) 的外徑d2爲1 5 mm。當然這些數値都只是舉例說明而已， 並非一定必須如此。 保險元件（1 0)最好是以一種耐高溫的彈性材料製成。 例如保險元件（10)至少有一部分的成分是鎢及/或鉬。例如 可以將保險元件的厚度（沿縱軸的尺寸）設計成0.2 mm左 右。 第8a至8f圖顯示保險元件（10)的其他實施例，這些實 施例包括封閉式及開放式之環形斷面的實施例。對保險元 件（10)的形狀及構造而言，重要的是如果支柱具有結構化 區域（31)，則保險元件（10)要能夠與支柱的結構化區域（31) 嚙合，或是如果支柱具有結構化區域（3 1) ’則保險元件（1〇) 的內徑d 3要小於支柱（3 )的外徑d 1。這樣不論本發明的裝 置是何種特定的構造方式，都可以確保零件（支柱 '支撐 -18- 200901265 件、以及保險元件）之間的相對位置不會改變。此外，裝置 的構造方式最好還能夠確保零件彼此的定中心性，以及對 加速力產生阻尼作用。 除了第2圖顯示的特定的構造方式外，也可以將裝置 (1 1)設計成保險元件（1 0)與終端（5 1)毗鄰，因此並不是完全 整合在支撐件（5)中。在這種構造方式中，保險元件（1〇)最 好具有至少一個部分環繞的卡圈或橋形接片，這個卡圈或 橋形接片在縱軸A的方向上伸展，而且至少有部分面積毗 鄰缺口（5 3)的內側（531)。這種橋形接片與如圖2之保險元 件（10)所在的平面垂直。經由這種將保險元件（10)置於與終 端（5 1)毗鄰的位置，以及與終端（51)之內側（531)毗鄰的方 式，即可達到確保位置穩定性及定中心性的目的。 也可以將這種至少部分環繞的橋形接片應用在第2圖 顯示的實施例中。這樣做的好處是在將保險元件（1 〇)安置 到支柱上（尤其是進到最終位置）時，至少可以減輕扭曲或 擠開的程度。 > ; 第9圖是以示意方式顯示保險元件（1〇)的另外一個實 施例的立體透視圖。第9圖的保險元件（1〇)不是僅在一個平 面上伸展的圚片狀保險元件，而是一個圓柱狀三度空間構 造的保險元件。此外，保險元件（10)還具有一個完全環繞 的傾斜側壁（1 〇 8)。這種構造的保險元件（1 0)近似於一個中 空的平截頭圓錐體。 第10圖顯示本發明之裝置（11)的另外一個實施例的立 體透視圖。裝置（1 1)具有一個如第9圖的保險元件（10)。當 -19- 200901265 保險元件（1 0)到達在支撐件（5)的缺口（ 5 3)內的最終位置 時，保險元件（10)正好位於缺口（5 3)的底端，並緊靠在這個 底端及內側（5 31)上。側壁（108)與內側（5 31)形成一個平坦的 結構，因此可以對撞擊力產生很好的阻尼作用。 在這個實施例中，支撐件（5)的形狀爲類似一個平截頭 圓錐體。支撐件（5)在朝終端（52)的方向上逐漸變窄，因此 終端（5 1)的直徑大於終端（52)的直徑。 【簡單圖式說明】 r 第1圖：本發明之高壓放電燈的一個側視圖。 第2圖：應用於如第1圖之高壓放電燈之本發明的裝置的 —個立體透視圖。 第3圖：電極支柱的一個側視圖。 第4圖：如第3圖之支柱的一個部分放大圖。 第5圖：如第3圖或第4圖之支柱的結構化區域的第一個 實施例。 第6圖：如第3圖或第4圖之支柱的結構化區域的第二個 實施例。 第7圖：本發明的保險元件的一個實施例的俯視圖。 第8a至8f圖：不词構造方式之本發明的保險元件的俯視圖。 第9圖：本發明之保險元件的另外一個實施例的立體透視圖。 第10圖：應用於如第1圖之高壓放電燈之本發明的裝置的另 外一個實施例的立體透視圖。 -20- 200901265 【元件符號說明】 1,2 電極 3,4 支柱 3 a 外表面 5,6 支撐件 7 放電容器 10,12 保險元件 11,13 裝置 3 1 區域 3 1a 部分斷面 5 1,52 終端 53 缺口 53a 錐形區域 53b 圓柱形區域 54 鑽孔 7 1 放電管殼 72 軸頸 101,531 內側 102-107 彈性止動元件/彈性區域 108 側壁 311,312,313 切口 311，，312，，313， 凸起 311a，312a，313a ; 311a，，312a，，313a， 結構邊 314,315,316 ; 314’，315’，316， 錐形段 -21- 200901265 A 縱軸 dl，d2 外徑 d3 內徑 22-200901265 IX. Description of the Invention: [Technical Field] The present invention relates to a safety element for a discharge lamp and a device having the same. [Prior Art] High-pressure discharge lamps (e.g., mercury vapor lamps (HBO lamps)) are particularly sensitive to shock loads due to size and structure, such as being particularly sensitive to forces of relatively high strength that occur in a short period of time. Especially in transit, the most likely i:-', is subject to this type of shock load. Especially for high-pressure discharge lamps with a power of more than 2 kW (especially more than 4 kW), the risk of breaking the high-pressure discharge lamp caused by the shock load is not negligible due to the size of the electrodes. Damage caused by breakage may cause the high pressure discharge lamp to be unusable and must be marked as a waste product, resulting in a decrease in customer satisfaction. The electrode system of a high pressure discharge lamp comprises a plurality of parts, one of which is a support made of quartz, which is commonly referred to as a support tube (quartz tube). These parts (especially quartz tubes) are finally fixed after being sealed in a rod-shaped tube, and then the rod-shaped tube becomes the journal of the discharge lamp. Since the electrode system is mostly sealed vertically during the manufacture of the high pressure discharge lamp, it is necessary to fix or hold the movable parts (especially the support members) of the suspended electrode system so as not to be movable. The part slips or falls. One known method is to insert and flip a very thin molybdenum strip ' between the electrode post and such a support (stone tube) to secure the support to prevent the support from slipping off. However, the disadvantage is that the part may break the molybdenum strip '200901265 and fall into the discharge chamber of the discharge lamp' and thus adversely affect the operation of the discharge lamp. Another disadvantage is that 'only if multiple parts are used with this type of molybdenum strip' to ensure that the parts are centered with each other. And despite this, the accuracy of the centering is subject to considerable restrictions. Another disadvantage is that this known manner of damping is insufficient for possible acceleration forces. SUMMARY OF THE INVENTION An object of the present invention is to provide a fuse element for a component of a discharge lamp. The function of the fuse element is to ensure the relative position between the components. In particular, such a safety element is required to ensure the fixing of the discharge lamp. A further object of the invention is to provide a device for a discharge lamp having such a safety element, and in addition to the positioning function, the safety element also enables the elements of the discharge lamp to be centered. This can be achieved by using insurance elements and devices that have the characteristics of a separate application for patent application. The function of the securing element designed in accordance with the first aspect of the invention is to ensure the relative position of a strut of the electrode of the lamp to a support member that grips the strut. The securing member has an annular cross-section in which at least a portion of the inner side of the annular cross-section is engageable with a structured region on the outer surface of the strut. This configuration ensures the relative position between the parts of the discharge lamp. In particular, it is possible to prevent the support member from slipping off relative to the support when manufacturing the discharge lamp. In addition, this construction of the fuse element can also improve the stability of the fracture resistance -6 - 200901265, especially the elastic effect on the shock load for a short period of time. In particular, when a relatively large electrode is fixed to the post and the acceleration force causes a considerable leverage on the system, the fuse element and/or the column can be prevented from breaking. The circular section of the fuse element means a circular shape, an elliptical shape, or a section shape in which it has no angular shape, but it may also be a sectional shape in which at least a part of the area is angular. Preferably, the annular section of the securing member is a shape that is completely closed in the direction of rotation. This configuration not only ensures the position of the previously mentioned parts, but also ensures that these parts are centered with each other. However, it is also possible to design the annular section to be an open shape in the direction of rotation. In particular, in a relatively flexible structure, a safety element having such a ring-shaped cross section can be placed on the side of the pillar of the electrode. An advantageous way is that the inner diameter of at least one of the inner sides of the annular section is smaller than the outer diameter of an outer structural edge of the structured area on the outer surface of the struts. In this case, if the securing element is placed on the strut, the diameter relationship between the \j annular section and the structural side ensures that the securing element will be securely in a final position. This diameter relationship ensures that the fuse element will be held in place when the fuse element is almost swept over the edge of the structure to prevent the fuse element from slipping back. This will reliably hold the relative position between the parts. An advantageous way is to provide at least one resilient stop element that engages the structured area of the strut on the inside of the annular section. This resilient stop element allows the securing element to be more easily placed on the post' and will not be damaged when passing over the knot 200901265. In addition, this elastic stop element also makes the fixing more reliable. Preferably, the securing member has a plurality of resilient pins that point toward a center point of the securing member, and wherein the inner diameter of the pins is less than the outer diameter of the structural edge of the structured region of the post. These elastic stop elements are slightly bent when the securing elements are screwed onto the struts and are held behind the structural edges. An advantageous way is to provide a plurality of elastic stop elements on the inside of the ring of the securing element. In addition to being able to more reliably ensure the relative position between the parts, it also makes the centering more precise. Preferably, the stop elements are disposed in the direction of rotation of the annular fuse element at the same distance from each other, and preferably the stop elements have the same shape and/or size. This has the advantage of forming a symmetrical structure to ensure that the cylindrical struts and cylindrical supports provide precise centering and the relative position of the two. The securing element is preferably made of a high temperature resistant elastomeric material. A particularly advantageous way is that at least a portion of the component of the fuse element is molybdenum and/or at least a portion of the component is tungsten. An advantageous way is that the inner diameter of the annular section at least at one location is smaller than the outer diameter of the outer region of the struts. The elastic action of the elastic stop element of the fuse element can bear part of the shock force. This effect is achieved by temporal deferral and partial distribution of the shock force. To achieve this effect, it is preferable to design the fuse element to be placed in a notch 200901265 of the support member that can be precisely matched to its size. The securing element also prevents the struts from being deflected excessively to prevent the struts from striking the inner edge of the support and causing damage or destruction of the inner rim. Even with leverage, the fuse element provides reliable position stability and centering. The safety element designed in accordance with another aspect of the present invention functions to ensure the relative position between a post of the electrode of the lamp and a support for the support post. The securing member has a circular cross-section wherein the inner diameter of at least a portion of the inner side of the annular cross-section is smaller than the outer diameter of the strut, particularly in the region of the final position of the securing member. The strength of the securing element to be fixed to the strut at this fixed position is so great that it can absolutely prevent the support from slipping off, in particular to prevent slipping in the opposite direction of the mounting direction. The securing element of this configuration no longer requires that the strut have a structured area in the area of the final position of the securing element. At the same time, the construction of the securing element ensures that the parts remain in relative position to each other during other manufacturing steps of the lamp, in particular during the sealing process of the part. The fuse element designed according to the above two viewpoints does not need to use the molybdenum belt to fix the fuse element with other parts (especially the pillar and the support member). Further, this configuration of the fuse element can also prevent the discharge lamp of the fuse element of the present invention from being broken from the one piece of the fuse and falling into the discharge chamber. An advantageous way is that the inner side of the annular section of the safety element designed according to the second aspect has at least one elastic zone or the same inner diameter of the same element in the elastic region is smaller than the final position of the pillar at the safety element. The area's 200901265 OD. This configuration makes it easier to position the securing element and ensures that the positioning of the part does not change via bending of the elastic region. In particular, when the securing element is screwed onto the strut, the elastic region (or these) is bent in the opposite direction of the tightening direction, thereby preventing the securing element from slipping in the opposite direction of the tightening direction. A further advantageous embodiment of the securing element designed according to the first aspect is also an advantageous embodiment of the securing element designed according to the second aspect. The fuse element designed according to these two viewpoints can also be cylindrical. Preferably, the securing element is constructed not only in one plane but also in a three dimensional structure with at least partially surrounding side walls. This configuration allows the securing element to have a damping effect and a weakened lever force, thereby improving the fracture stability. When the safety element of this shape is placed in a notch of the support member which can be precisely matched with its size, the contact surface of the safety element is the inner side of the notch and thus can withstand the impact force. This embodiment can improve the distribution of forces. Furthermore, another aspect of the invention also provides a device for a discharge lamp, in particular a device for a high pressure discharge lamp, having an electrode support, a support member, and a first aspect or invention according to the invention The fuse element described in the second aspect. One advantageous way is that the struts have a structured area' and the structured area has at least one structural side. Preferably, the structured region has at least one slit on the outer surface of the strut, while the outer diameter of the structural edge of the slit is less than or equal to the outer diameter of the strut outside of the structured region.采-10-200901265 In this configuration, the structured regions preferably also have slits, and the extent of these slits should not exceed the extent of the outer surface of the pillars outside of the structured regions. The slit forms a groove, that is, a groove formed by cutting a part of the material from the struts. If the inner diameter of the securing element is smaller than the outer diameter of the structured edge of the slit and is also smaller than the outer diameter of the strut outside of this structured area, an elastic region of the securing element can engage the slit, thus ensuring between the parts Relative position. f. An advantageous way is that the structured area has at least one tapered section. This tapered section will gradually narrow toward the electrode disposed on the post. The fixation of the elastic region on the inside of the securing element can be achieved in the narrowed portion of the tapered section. This configuration and configuration prevents the fuse element from slipping off in the direction of the electrode. Another possible way is for the structured region to have at least one projection on the outer surface of the strut and the outer diameter of the structural edge being greater than the outer diameter of the strut outside the structured region. This configuration can achieve almost the same effect as the configuration with the slit described in the front " This configuration does not require the material to be cut away from the outer surface of the strut, but rather the material is added to the outer surface to form the projection. Thus in this configuration, the inner diameter of the safety element can be equal to or greater than the outer diameter of the struts outside of the structured area. However, it is important that the inner diameter of the securing element is smaller than the outer diameter of the raised structural side of the structured area. This ensures that the position of the fuse element does not change when the fuse element passes over the edge of the structure, in particular to prevent the fuse element from slipping off. -11- 200901265 This configuration with one or more projections can also be used to design the projection as a tapered section and can be a tapered section that completely or only partially surrounds the outer surface of the strut. Similarly, the aforementioned cut may also be a slit that is completely or only partially surrounded. According to an advantageous embodiment, the securing element is arranged in the support. In this embodiment, at least a portion of the support member is hollow for receiving the securing member. In addition to saving space and making the structure even tighter, this embodiment further ensures the positional stability and centering of the fuse element. One advantageous way is that one end of the support has a notch into which the securing element can enter and can reach its final position with precision. An advantage of this configuration is that it is easy to position the fuse element to the final position when the fuse element is placed, and that it has good mechanical stability at this final position. Furthermore, another advantage of the manner in which the securing element is accurately delivered to the final position is that the securing element ensures that the parts are centered with each other. An advantageous way is that, as seen from the direction of the longitudinal axis, the notch tapers inwardly towards the support and has a bore at the inner stop, and the inner diameter of the bore is just enough for the safety element Was put in. Furthermore, the invention also comprises a discharge lamp, in particular a high pressure discharge lamp, having the device of the invention. The device of the present invention has an electrode post, a support member, and a safety element. The discharge lamp can have the device of the various advantageous embodiments previously mentioned. -12- 200901265 [Embodiment] Hereinafter, the contents of the present invention will be further described with reference to the drawings and the embodiments. Elements that have the same or the same function in the drawings are denoted by the same element symbols. Figure 1 shows in schematic form a side view of a high pressure discharge lamp (1) having a cathode (1) and an anode (2). The cathode (1) is fixed to a pillar (3). The anode (2) is fixed to a post (4). The struts (3, 4) are respectively connected to a support member (5, 6) composed of a quartz tube. The parts of the high pressure discharge lamp (I) mentioned above are all located in a discharge vessel (7) made of quartz glass. The discharge vessel (7) has an elliptical discharge vessel (71)' pillar (3, 4) and an anode (2) and a cathode (1) fixed thereto, both extending into the discharge vessel casing (71). The inside of the elliptical discharge envelope (71) constitutes a discharge chamber. The journals (72, 73) of the discharge vessel (71) extend outwardly from both ends of the discharge vessel casing (71), respectively. The journals (7 2, 7 3) are connected to a connector (8, 9), respectively. As shown in Fig. 1, a fuse element (10) is provided in the support member (5). The safety element (10) is also known as a safety washer or a stop washer. A device (丨1) having a support member (5), a support post (3), and a safety member (1 〇) is sealed into the journal (73). Similarly, a securing element (12) disposed within the support member (6) and a device (13) having a strut (4), a support member (6), and a securing member (12) are sealed to the journal (72). The seal mentioned above is a hermetic seal. Figure 2 shows a perspective view of an embodiment of the apparatus (11) of the present invention from -13 to 200901265. The device (11) has a cylindrical support (5). The support (5) has a through bore (54) for the insertion of the strut (3). The terminal (51) of the support member (5) facing the cathode (1) has a notch (53). The notch (53) has a tapered area (53a) in the direction of the longitudinal axis A and a cylindrical area (53b) connected to the tapered area (53a). The notch (53) is first narrowed in the direction toward the other end (52) and then transitioned to the cylindrical region (53b). The diameter of the cylindrical region (5 3b) having a certain length remains constant over this length. A terminal (52) opposite the cathode (1) is connected to a fuse element (not shown in detail in Fig. 2) as the end of the device (11). A structured region (31) is formed on the outer surface (3a) of the pillar (3). As shown in Fig. 2, the support member (5) and the pillars (3) are positioned with each other such that the structured region (31) is fixed in the support member (5). This configuration is designed to position the final position of the securing element (10) in the lower stop of the cylindrical region (53b) and engage the structured region (31). That is, the engagement is formed between the pillar (3) and the fuse element (10). By means of this configuration of the device (1 1 ), on the one hand the relative position between the strut ( 3 ) and the support element ( 5 ) and the securing element ( 10 ) can be ensured, and on the other hand, the securing element ( 1 〇) can be precisely Ground positioning ensures the centering of the part in the cylindrical area (5 3b). In addition, this configuration improves the damping of the acceleration force and is more resistant to the leverage acting on the column (3). This configuration greatly reduces or completely prevents damage caused by the acceleration force, especially the breakage of the fuse element (10) and/or the strut (3). Figure 3 is a side view showing the pillar (3) in a schematic manner. In the present example -14-200901265, the total length 11 of the strut (3) is 62 mm. The distance 12 between the structured region (3 1) (especially the upper edge portion of the structured region (31)) and the terminal end above the strut (3) is 3 6 · 5 mm. Further, the outer diameter d 1 of the pillar (3) outside the structured region (31) is 8 m. Figure 4 shows a partial enlarged view of the pillar (3) as in Figure 3. As can be seen from this enlarged view, the structured region (31) has a plurality of grooves having a zigzag profile in cross section. The number of grooves depicted in Figure 4 is only an example, and the purpose is simply to show the shape of the structured area (31). Theoretically, only one such groove is required to form a structured region (31), and the structured region (31) has a securing strut (3), a support member (5), and a safety element (10). ) The function of the relative position between. In the embodiment shown in Figure 4, the length 13 of the structured region (31) is about 5 mm. In the same way, this trick is just an example, and the actual flaw can still be smaller. An advantageous way is for the structured area (31) to wrap around the outer surface (3a) in the direction of rotation. However, the structured area (31) may also only partially surround the outer surface (3a) in the direction of rotation. In the embodiment shown in Fig. 4, the length (or height) 14 of a groove is 0.25 mm. An advantageous way is to reduce the number of grooves so that the length 14 of the groove is greater than 0.25 mm. Fig. 5 is a view showing a partial section (31a) of Fig. 4 in a schematic manner. Figure 5 shows an example of the first real area of the structured area (31). As can be seen from Fig. 5, the material of the pillar (3) convex portion is cut away, thereby forming a slit (311, 312, 313). The slit (311, 312, 313) has a maximum depth of 11, and its sharp tail constitutes a structural edge (311a, 312a). The structural edges (3iia, 312a) -15- 200901265 are circumferentially shaped and do not extend beyond the outer surface (3 a). In the embodiment of Fig. 5, the diameter of the structured region (31) is less than or equal to the diameter dl of the pillar (3) outside the structured region (31). Further, as can be seen from Fig. 5, the shape of the slit (3 1 1, 3 1 2, 3 1 3 ) causes the structured region (31) to form a plurality of tapered segments (314, 315, 316) one after another. In order to cooperate with the struts (3) of Fig. 5, the inner diameter d3 of the annular section of the securing element (10) (see Fig. 7) should be smaller than the outer diameter dl of the struts (3). Thus, when the securing element (10) is placed, the inner side (101) of the securing element (1) or the elastic area (102 to 107) formed on the inner side (101) (see Fig. 7) will be associated with the structured area ( 31) Engage and insert one of the slits (311, 312, 313). Fig. 6 is an enlarged view of a section (31a) of the other embodiment of the pillar (3) as shown in Fig. 4. This configuration is to form protrusions (311', 312', 313') on the outer surface (31a) of the structured region (31), extending due to the protrusions (3 11 ', 3 12 ', 3 13 s) It is outside the outer surface (3a) and therefore has a diameter larger than the diameter d 1 of the pillar (3) outside the structured region (31). In this configuration, the projections (311, 312', 313,) have a zigzag profile and form structural edges (3 1 1 a ', 3 1 2 a ', 3 1 3 a '). The depth 11 between two adjacent projections (311', 312', 313') is to be able to reach the imaginary outer surface (3a) from the structural edge (31: ^'). This depth 11 can also be larger or smaller. Preferably, the projections (3 i Γ, 3 1 2 ', 3 1 3 ') are designed as a closed configuration in which the struts (3) are wound around the entire circumference. According to the embodiment shown in Fig. 6, the structured region (31) has a plurality of tapered segments (3 1 4 ', 3 1 5 ', 3 1 6 '), and is connected in the direction along the longitudinal axis A. -16- 200901265 A stepped arrangement. With this configuration, the inner diameter d3 of the securing member (10) can be designed to be larger than the outer diameter d1 of the strut (3). Thus, when the securing element (10) is placed on the strut (3), the inner side of the securing element (10), in particular the elastic region (102 to 107), can be embedded in the projection (3 1 1 ', 3 1 The gap between 2 ', 3 1 3 '). The tapered sections ((314, 315, 316; 314', 315', 316') shown in Figures 5 and 6 are for illustrative purposes only, and the number and shape can be varied. "' Figure 7 shows An embodiment of the securing element (10) of the invention. The securing element (10) of this embodiment is a disc-shaped securing element that extends only in one plane (i.e., the drawing plane). In addition, the 'insurance element (10) It has a closed annular cross section. It is important for the securing element (10) of the invention that the inner side (1 〇1) is shaped and dimensioned to be engageable with a structured area (31). The size of 3 should be designed in accordance with the outer diameter d 1 of the strut (3). In the embodiment shown in Fig. 7, the securing element (1 〇) has an outer diameter ^ d2. The securing element (1 〇) has a plurality of The elastic regions (1 0 2 to 1 0 7)' in the rotational direction are arranged at the same distance apart and the material between the adjacent elastic regions (102 to 107) is cut off to make the elastic regions (1〇2 to 107) Separated from each other. These trapezoidal elastic regions (丨〇2 to 1) 7) acts as a stop pin that can be engaged with the slit (311, 312, 313) or a gap between the projections (3 1 1, 3 1 2 ', 3 1 3 '). This elastic region (1 0 The design of 2 to 107) enables the fuse element to be pushed and placed on the strut (3) in a very simple and labor-saving manner. In the embodiment of -17-200901265 in Fig. 5, the elastic region (102 to 107) It will bend in the opposite direction to the direction of movement. Until it reaches a slit (3 11, 3 12, 3 13), the elastic region (102 to 107) that bends backward will suddenly bend forward and with the slit (3 1 1 , 3 1 2, 3 1 3 ) Engagement. As shown in Fig. 7, from the edge of the fuse element (10), the depth of the elastic region (102 to 107) is t2, and the depth of the notch portion is t3. The width of the angular section of each of the elastic regions (102 to 107) is w1, and the width of the angular segment of the notched portion is w 2. ¢--, 1 For example, in the present embodiment, the angle of the angular section of width w 1 is 40 degrees, the angle of the angle of w2 is 20 degrees. In addition, the depth t2 is 3.9 mm, the depth t3 is 1.5 mm, the inner diameter d3 is 7.2 mm, the safety element 10) The outer diameter d2 is 15 mm. Of course, these numbers are only examples, and this is not necessarily the case. The safety element (10) is preferably made of a high temperature resistant elastic material. For example, the safety element (10) At least a part of the components are tungsten and/or molybdenum. For example, the thickness of the fuse element (the dimension along the longitudinal axis) can be designed to be about 0.2 mm. Figures 8a through 8f show other embodiments of the securing element (10), including embodiments of closed and open annular sections. For the shape and configuration of the securing element (10), it is important that if the strut has a structured area (31), the securing element (10) must be able to engage the structured area (31) of the strut, or if the strut has The structured area (3 1) 'the inner diameter d 3 of the securing element (1〇) is smaller than the outer diameter d 1 of the strut (3). Thus, regardless of the particular configuration of the apparatus of the present invention, it is ensured that the relative position between the parts (struts 'support -18-200901265, and the safety element) does not change. In addition, the device is preferably constructed in such a way as to ensure the centering of the parts and the damping of the acceleration forces. In addition to the specific construction shown in Fig. 2, the device (1 1) can also be designed such that the fuse element (10) is adjacent to the terminal (51) and is therefore not fully integrated in the support (5). In this configuration, the securing element (1〇) preferably has at least one partially surrounding collar or bridge tab which extends in the direction of the longitudinal axis A and which has at least a portion The area is adjacent to the inside of the gap (53) (531). This bridge tab is perpendicular to the plane in which the fuse element (10) of Figure 2 is located. By this way, the securing element (10) is placed adjacent to the terminal (51) and adjacent to the inner side (531) of the terminal (51) to achieve positional stability and centering. It is also possible to apply such an at least partially circumferential bridge to the embodiment shown in Figure 2. This has the advantage of at least reducing the degree of distortion or squeezing when placing the fuse element (1 〇) onto the struts (especially into the final position). >; Fig. 9 is a perspective perspective view showing another embodiment of the securing member (1〇) in a schematic manner. The securing element (1〇) of Fig. 9 is not a flap-shaped securing element which extends only on one plane, but a securing element of a cylindrical three-dimensional space. In addition, the securing element (10) also has a fully circumferential inclined side wall (1 〇 8). The safety element (10) of this configuration approximates a hollow frustum cone. Fig. 10 is a perspective view showing a perspective view of another embodiment of the apparatus (11) of the present invention. The device (11) has a securing element (10) as shown in Fig. 9. When the fuse element (10) reaches the final position in the notch (53) of the support (5), the fuse element (10) is located at the bottom end of the notch (53) and abuts This bottom and inside (5 31). The side wall (108) and the inner side (5 31) form a flat structure, so that a good damping effect can be exerted on the impact force. In this embodiment, the support member (5) is shaped like a frustum of a cone. The support member (5) is gradually narrowed in the direction toward the terminal (52), so that the diameter of the terminal (51) is larger than the diameter of the terminal (52). [Description of a simple diagram] r Fig. 1 is a side view of the high pressure discharge lamp of the present invention. Fig. 2 is a perspective perspective view of the apparatus of the present invention applied to the high pressure discharge lamp of Fig. 1. Figure 3: A side view of the electrode post. Figure 4: A partially enlarged view of the struts as in Figure 3. Figure 5: A first embodiment of a structured region of the struts as in Figure 3 or Figure 4. Figure 6: A second embodiment of a structured region of the struts as in Figure 3 or Figure 4. Figure 7 is a plan view of an embodiment of the securing element of the present invention. Figures 8a to 8f are top views of the fuse element of the present invention in a non-verbal configuration. Figure 9 is a perspective perspective view of another embodiment of the securing element of the present invention. Figure 10 is a perspective perspective view of another embodiment of the apparatus of the present invention applied to the high pressure discharge lamp of Figure 1. -20- 200901265 [Description of component symbols] 1, 2 electrodes 3, 4 pillars 3 a outer surface 5, 6 support 7 discharge vessel 10, 12 fuse element 11, 13 device 3 1 area 3 1a partial section 5 1,52 Terminal 53 Notch 53a Tapered Area 53b Cylindrical Area 54 Drill Hole 7 1 Discharge Tube Shell 72 Journal 101, 531 Inner Side 102-107 Elastic Stop Element / Elastic Area 108 Side Wall 311, 312, 313 Cutout 311, 312, 313, Bump 311a, 312a, 313a; 311a, 312a, 313a, structural side 314, 315, 316; 314', 315', 316, tapered section-21- 200901265 A vertical axis dl, d2 outer diameter d3 inner diameter 22-