201223047 六、發明說明： 【發明所屬之技術領域】 本發明係關於電纜線之終端連接頭，且特別是有關於位 在電纜線絕緣體外周並組裝著橡膠應力錐之電纜線終端連 接頭。 【先前技術】 習知的275 kV級高壓CV電纜線（架橋聚乙烯電纜線）終端 連接頭’是如圖1所示，在電纜線絕緣體1〇〇之外周組裝橡 膠應力錐110’並經由將該橡膠應力錐110朝向環氧樹脂座 120予以按壓固定之方式，來確保電缆線絕緣體ι〇〇與橡膠 應力錐110間的界面絕緣（例如、專利文獻。 但是在具有如此構成之電纜線終端連接頭上，為了要施 加既定的面壓於電纜線絕緣體1 00的外周部與橡膠應力錐 110的内周部之間’必須將橡膠應力錐11()之内徑作成較電 纜線絕緣體100之外徑為小的尺寸，此外又為了要提昇前 述界面之密著性’需要在施工現場將電纜線絕緣體1〇〇之 外周部加以處理。具體而言，即必須要將跨於外部半導電 層130之前端部至電纜線絕緣體1 〇〇之前端部間的區域（以 下以「加工範圍」稱呼）L0，利用例如玻璃切削器或砂紙 等來加以研磨作出鏡面加工（例如、專利文獻2)。 但是在具有如此構成之電纜線終端連接頭上，加工範圍 L0是達到例如2〜3 m左右，故使得橡膠應力錐11〇之插入行 程長度變長，亦即在進行電纜線2〇〇之分段剖剝處理等時 會耗用較多的時間（每1 m約2〜3小時左右），此外亦存在組 155396.doc 201223047 裝橡膠應力錐110之時也要多花費工時的問題點。 在圖式中，符號210所示是橡膠應力錐11〇之按壓裝置， 220是防蝕層，330是碍管，31〇是底部金具，32〇是下部金 具4〇〇疋絕緣流體，5〇〇是上部金具，6〇〇是上部覆蓋， 7〇〇是支持碍子。 [先行技術文獻] [專利文獻] 專利文獻1 :特開平9-261832號公報。 專利文獻2 :特開平8-172712號公報。 【發明内容】 [發明所欲解決之問題] 本發明之目的，是要提供一種電纜線終端連接頭，經由 減少電纜線絕緣體之表面處理範圍，同時降低插入橡膠應 力雜時之工時，而可以達成組裝工程的大幅省力化。 [用以解決課題的手段] 本發明第1形態之電規線終端連接頭中具備：電境線端 末’其中具有外部半導電層，該外部半導電層為經由電纜 線端部之分段剖剝處理使電纜線外部半導電層及電瘦線絕 緣體露出’並在該電纜線外部半導電層之前端側上施予既 定處理而形成；及組裝於電缆線絕緣體外周之外部半導電 層上的橡膠應力錐；及包圍著電纜線端末與橡膠應力錐， 並在内部充填絕緣流體的碍管；電缆線絕緣體外周部又可 區分為組裝橡膠應力錐之第1處理部，及由該第1處理部之 前端部至電纜線絕緣體之前端部為止的第2處理部，.第i處 155396.doc -6 - 201223047 理部之外徑是較橡膠應力錐之内徑為大，而第2處理部之 外徑是較橡膠應力錐之内徑為細，同時在第2處理部上之 電纜線絕緣體的厚度，至少是讓形成於電獍線絕緣體徑方 . 向之電場，大於形成於第2處理部軸方向之電場。 本發明第2形態’是在第中之錢線終端連接頭 · 上，位於第1處理部與第2處理部之間，設置直徑由第1處 理部側朝向第2處理部侧縮小之錐形部。 本發明第3形態’是在第2形態中之電纜線終端連接頭 上，於第1處理部之外面實施既定的表面處理。 本發明第4形態’是在第3形態中之電纖線終端連接頭 上，於錐形部之外面實施既定的表面處理。 [發明效果] 本發明之電纜線終端連接頭，具有如下所述的效果。 第1，經由電纜線端部之分段剖剝處理而露出之電纜線 絕緣體外周部，可區分為裝配橡膠應力錐之第丨處理部， 及位於第1處理部<前端側直到電纜線絕緣體之前端部為 止的第2處理部，同時由於第2處理部之外徑是較橡膠應力 錐之内徑為細，故可以輕易的將橡膠應力錐插穿過第2處 理部，並因此相較於習知的電纜線終端連接頭能大幅的減 少裝配橡膠應力錐所需之工時。 第2，經由在第i處理部之外面實施既定的表面處理後， 位於電場強度較低之第2處理部上電纜線絕緣體的厚度， 是至少能讓其形成於電纜線絕緣體徑方向之電場，大於形 成於第2處理部軸方向之電場即可，例如利用粗切削在電 155396.doc 201223047 窥線絕緣體外周部進行處理後’就不再需要如習知處理方 式一樣以砂紙等進行電纜線絕緣體之表面處理，因此相較 於習知的電纜線終端連接頭能大幅的減少電纜線處理所需 之工時。 【實施方式】 以下針對適用於本發明電纜線終端連接頭之較佳實施形 態，參照圖式加以說明如下。 圖2為適用於275 kV級CV電缆線用空氣中終端連接頭的 本發明電纜線終端連接頭之局部剖面圖，圖3係顯示本發 明中電纜線絕緣體外周部之處理狀況的示意圖。 如圖2及圖3，本發明之電缆線終端連接頭中具備：將 CV電纜線1予以分段剖剝處理後之電纜線端末2 ;及饵於 電規線絕緣體12之外周並如後述跨座於外部半導電層丨3，前 端部（高壓側）上而裝配的橡膠應力錐3 ;及包圍著電纜線端 末2及橡膠應力錐3，並由在内部充填絕緣油作為絕緣流體 4的磁器性碍管等所形成的碍管5。 將具有此構成之電纜線終端連接頭，按照以下所述予以 組裝。 首先，CV電纜線1之構成是在電纜線導體丨丨上依序設置 由電纜線内部半導電層（未予圖示）、電纜線絕緣體12、電 纜線外部半導電層13、鋁製波形套管等所作成之電纜遮蔽 層14,及由氯乙烯套管等所作成之電纜線套管15。此外、 通常電纜線内部半導電層、電纜線絕緣體12及電纜線外部 半導電層13是以三層同時押出被覆之方式所作成。 155396.doc201223047 VI. Description of the Invention: [Technical Field] The present invention relates to a terminal connector of a cable, and more particularly to a cable terminal connector which is disposed on the outer circumference of the cable insulation and is assembled with a rubber stress cone. [Prior Art] A conventional 275 kV high-voltage CV cable (bridged polyethylene cable) terminal connector 'is assembled as shown in Fig. 1, and the rubber stress cone 110' is assembled outside the cable insulation 1〇〇 The rubber stress cone 110 is pressed and fixed toward the epoxy resin holder 120 to ensure interface insulation between the cable insulation ι and the rubber stress cone 110 (for example, Patent Document). However, the cable terminal having such a configuration In the connector, in order to apply a predetermined surface pressure between the outer peripheral portion of the cable insulation 100 and the inner peripheral portion of the rubber stress cone 110, the inner diameter of the rubber stress cone 11 () must be made smaller than the cable insulation 100. The diameter is small, and in addition, in order to improve the adhesion of the aforementioned interface, it is necessary to treat the outer portion of the cable insulation 1〇〇 at the construction site. Specifically, it must be across the outer semiconductive layer 130. The area from the front end to the end of the cable insulation 1 ( (hereinafter referred to as "processing range") L0 is polished by, for example, a glass cutter or sandpaper. Mirror surface processing (for example, Patent Document 2). However, in the cable terminal connecting head having such a configuration, the processing range L0 is, for example, about 2 to 3 m, so that the insertion stroke length of the rubber stress cone 11 变 becomes long, that is, It takes a lot of time (about 2 to 3 hours per 1 m) to carry out the sectioning and stripping of the cable 2, and there is also a group 155396.doc 201223047 when the rubber stress cone 110 is installed. In the figure, symbol 210 shows the pressing device of the rubber stress cone 11〇, 220 is the anti-corrosion layer, 330 is the obstruction tube, 31〇 is the bottom fitting, and 32〇 is the lower fitting 4〇 〇疋Insulating fluid, 5 〇〇 is the upper metal fitting, 6 〇〇 is the upper covering, and 7 〇〇 is the supporting circumstance. [Prior Art Document] [Patent Document] Patent Document 1: JP-A-9-261832. Patent Document 2 JP-A-H8-172712. SUMMARY OF THE INVENTION [Problem to be Solved by the Invention] It is an object of the present invention to provide a cable terminal connector that reduces the surface treatment range of a cable insulation while reducing the insertion of the rubber [Means for Solving the Problem] The electric gauge terminal connector of the first aspect of the present invention includes: an end of the electric current line, which has an external semiconducting power. a layer, the outer semiconductive layer exposing the outer semiconducting layer of the cable and the electric thin wire insulator through segmentation and stripping treatment at the end of the cable line and applying a predetermined treatment on the front side of the outer semiconductive layer of the cable And forming; and a rubber stress cone assembled on the outer semi-conductive layer of the outer circumference of the cable insulation; and a tube surrounding the end of the cable line and the rubber stress cone, and filling the insulating fluid inside; the outer circumference of the cable insulation can be It is divided into a first processing unit for assembling a rubber stress cone, and a second processing unit from the front end portion of the first processing portion to the front end portion of the cable insulation. The i-th 155396.doc -6 - 201223047 The outer diameter is larger than the inner diameter of the rubber stress cone, and the outer diameter of the second treatment portion is thinner than the inner diameter of the rubber stress cone, and the thickness of the cable insulation on the second treatment portion is at least An electrical line formed on the insulator CONSERVATIVE DENTISTRY radial direction. Direction of the electric field, an electric field is formed larger than the second axial direction of the processing unit. In the second embodiment of the present invention, the first processing unit and the second processing unit are disposed between the first processing unit and the second processing unit, and the tapered portion is tapered from the first processing unit side toward the second processing unit side. unit. According to a third aspect of the present invention, in the cable end connector of the second aspect, a predetermined surface treatment is performed on the outer surface of the first processing unit. According to a fourth aspect of the present invention, in the electrofiber terminal connecting head of the third aspect, a predetermined surface treatment is performed on the outer surface of the tapered portion. [Effect of the Invention] The cable end connector of the present invention has the following effects. First, the outer peripheral portion of the cable insulation exposed through the segmentation and stripping process at the end of the cable can be divided into a second processing unit in which the rubber stress cone is assembled, and the first processing unit < the front end side up to the cable insulation. Since the outer diameter of the second treatment portion is smaller than the inner diameter of the rubber stress cone in the second treatment portion before the end portion, the rubber stress cone can be easily inserted through the second treatment portion, and thus The conventional cable terminal connector can greatly reduce the man-hour required to assemble the rubber stress cone. Secondly, after the predetermined surface treatment is performed on the outer surface of the i-th processing unit, the thickness of the cable insulation on the second processing unit having a low electric field strength is at least an electric field which can be formed in the radial direction of the cable insulation. It is sufficient that the electric field is formed in the axial direction of the second processing unit. For example, after rough processing is performed on the outer peripheral portion of the line insulation of the 155396.doc 201223047, it is no longer necessary to carry out the cable insulation by sandpaper or the like as in the conventional processing method. The surface treatment can greatly reduce the man-hours required for cable processing compared to conventional cable terminal connectors. [Embodiment] Hereinafter, a preferred embodiment of a cable terminal connector suitable for use in the present invention will be described below with reference to the drawings. Fig. 2 is a partial cross-sectional view showing the cable terminal connector of the present invention applied to a terminal connector for air in a 275 kV class CV cable, and Fig. 3 is a view showing the processing state of the outer peripheral portion of the cable insulation of the present invention. As shown in FIG. 2 and FIG. 3, the cable terminal connector of the present invention includes: a cable end 2 after the CV cable 1 is segmented and stripped; and a bait on the outer circumference of the electric gauge insulator 12 and as will be described later. a rubber stress cone 3 assembled on the outer semiconductive layer 丨3, the front end portion (high pressure side), and a cable end end 2 and a rubber stress cone 3, and filled with insulating oil as an insulating fluid 4 The magnetic tube obstructs the tube 5 and the like. The cable terminal connector having this configuration is assembled as follows. First, the CV cable 1 is constructed by sequentially providing a semi-conductive layer (not shown) inside the cable, a cable insulation 12, an outer semiconductive layer 13 of the cable, and an aluminum wave sleeve on the cable conductor 丨丨. A cable shielding layer 14 made of a tube or the like, and a cable sleeve 15 made of a vinyl chloride sleeve or the like. Further, usually, the inner semiconductive layer of the cable, the cable insulation 12, and the outer semiconductive layer 13 of the cable are formed by simultaneously ejecting the three layers. 155396.doc
S 201223047 具有此構成之CV電纜線1的端部，是經由分段剖剝處理 後讓電纜遮蔽層14、電纜線外部半導電層13、電纜線絕緣 體12及電纜線導體u依序的露出。 在以此方式露出之電纜線絕緣體12外周部，於裝配橡膠 應力錐3之前，是如圖3所示，區別成後端側（圖式中下側） 上之第1處理部L1 ’及前端側（圖式中上側）上之第2處理部 L2，及設置於第i處理部L1與第2處理部L2之間的錐形部 16’再進行電纜線處理。 具體而言，電纜線絕緣體12外周部，是被區分為裝配著 橡膠應力錐3之第1處理部L1，及直徑由第丨處理部L1之前 端部（高壓側）朝向前端側（第2處理部L2側）平滑地縮小並具 有刖端細窄狀之錐形部1 6，及由錐形部丨6之前端部（高壓 側）至電纜線絕緣體12之前端部（高壓側）為止的第2處理部 L2。 在與第1處理部L1對應之電纜線絕緣體丨2的外周部上， 施行「既定之表面處理」，亦即「讓橡膠應力錐3與電纜線 絕緣體12之界面獲得必要電氣特性的表面處理」。例如在 本實施例中，是在第i處理部L1上以玻璃切削器或砂紙等 來加以研磨作出鏡面加工。在適用於低電壓等級之場合， 亦可僅以砂紙來研磨而不需作出鏡面加工。 此外，第1處理部L1之外徑是較後述的橡膠應力錐3之 内徑為大。在本實施例中，是讓第1處理部L1之外徑與橡 膠應力錐3之插入孔内徑間的徑差至少為2 mm程度，以 該徑差至少為2 mm程度而言，可以提昇電纜線絕緣體12 155396.doc 201223047 間的界面密著 之外周部與橡膠應力錐3之插入孔内周部 性0 接下來與第2處理部L2對應之電境線絕緣體12 ,由於是 如下述的具有較第！處理部u為低的電場故在與第2處理 部L2對應之電料絕緣體12的外周部上，可㈣如利用粗 切削方式作出較橡膠應力錐3更為細小之内徑。 將形成於與第2處理部L2對應的電纜線絕緣體Μ之徑方 向電場以Vi(kV/mm)表示，將形成於第2處理部轴方向（沿 面方向）之電場以V2(kv/mm)表示之場合，如存在¥1>%之 關係時，由於形成於與第2處理部L2對應的電纜線絕緣體 12之電場較低，故如將與第2處理部L2對應之電纜線絕緣 體12的外徑作成較橡膠應力錐3之内徑為細，也就是即使 該外彳£疋作成較規疋厚度為薄亦不會產生電氣上的問題。 關於此點在後述圖6之解說部分再加以說明。因此就可以 在與第2處理部L2對應之電缆線絕緣體12上利用例如專用 剝除工具（未予圖示）來加工剝除，並形成較橡膠應力錐3之 内徑為細的電規線絕緣體12的外徑。 在此場合，與第2處理部L2對應之電纜線絕緣體12，如 存在Vi>Vz之關係時，只要是在電纜線導體^上有電纜線 絕緣體12存在’即使是只有極端薄的厚度亦足以滿足電氣 上需求。因此’與第2處理部L2對應之電纜線絕緣體12， 只要在電纜線絕緣體12之外周部以切削加工（機械加工）形 成的粗切削狀態，就算是外面形成凹凸的狀態也好，橢圓 形狀也好，並無產生電氣特性上問題之顧慮。以此方式， 15S396.doc 201223047 就不需要在與第2處理部L2對應之電纜線絕緣體丨2的外面 進行習知的表面處理。 此外’由於在電纜線絕緣體12的第i處理部L1與第2處理 部L2之間設置錐形部16，該錐形部16之外面亦是與前述第 1處理部L1同樣的施行「既定之表面處理」，亦即施行「讓 橡膠應力錐3與電纜線絕緣體12之界面獲得必要電氣特性 的表面處理」。 以此方式’在將橡膠應力錐3插入電纜線絕緣體12之 時會在錐形部16至第1處理部L1間之範圍，讓橡膠應力 錐3之内周與電纜線絕緣體12之外周開始密著，故能防止 微少的空氣捲入於橡膠應力錐3與電纜線絕緣體12之界 面’並因而可以提供具有優良電氣特性的電窥線終端連接 頭。 另外經由在電纜線外部半導電層13之前端側（高壓側）施 行「既定之處理」，而形成組裝時所需要之外部半導電層 13’。亦即’所謂「既定之處理」就是「形成在組裝橡膠應 力錐3時所必要的外部半導電層13,」。圖2中之既定之處 理’是為了消除電纜線外部半導電層13與電纜線絕緣體12 之段差’在電纜線外部半導電層13之前端部（高壓側），橫 跨經過段剝後之電纜線絕緣體12及電纜線外部半導電層13 之前端部’利用半導性自己融著膠帶（ACP膠帶等）加以纏 繞處理而形成模組半導電層17的方式，來形成在組裝橡膠 應力錐3時所必要的外部半導電層13'。此外，在欲獲得組 裝橡膠應力錐3後之必要電氣特性的場合，亦可以不去纏 155396.doc -11 - 201223047 繞半導性自己融著膠帶，而僅利用段剝後之電镜線外部半 導電層13來形成外部半導電層13·«» 還有在圖中，符號18為設置於電纜線遮蔽層14外周之座 床，19為接地線，20為組裝在電纜線導體丨丨之前端部上的 導體端子，21為上部金具，22為底部金具，23為以氣密方 式組裝在底部金具22上面之圓筒狀的金屬製配接器，24為 下部銅管，25為橫跨於電纜線套管與下部銅管24間而設置 之防蝕層，26為螺絲，27為支持碍子，28為架台。 圖4係係顯示本發明中作為橡膠應力錐3之一實施例的金 具一體型應力錐之局部剖面圖。還有在該圖式中，與圖2 及圖3中共通之部分是被付與相同的符號並省略其詳細說 明。 在圖2、圖3及圖4中，本發明之金具一體型應力錐具 備.在電纜線絕緣體12之第1處理部L1的外周上，以橫跨 外部半導電層13’之前端部（高壓側、圖中之上側）方式而組 裝的由橡膠狀彈性體所形成的應力錐本體31;及包圍著外 部半導電層13,並以-體方式設置於應力錐本體31之低壓側 上的金具32;並在整體上呈現圓筒狀。在本實施例中，金 具一體型應力錐之長度約為4〇5mm，應力錐本體3ι之外徑 約為1 80 mm，。又置於應力錐本體3丨中心之插入孔的内徑 約為64 mm。 應力錐本體3 1中具備：配置於後端側（低麼侧、圖令之 下側）由料等之橡穋狀彈性體所形成的圓筒狀半導電體 部34，及位於半導電體部34之前端側（圖中之上側）且其後 155396.docS 201223047 The end portion of the CV cable 1 having this configuration is exposed through the segmentation and then the cable shielding layer 14, the cable outer semiconductive layer 13, the cable insulation 12, and the cable conductor u are sequentially exposed. The outer peripheral portion of the cable insulation 12 exposed in this manner is divided into the first processing portion L1' and the front end on the rear end side (lower side in the drawing) as shown in FIG. 3 before the rubber stress cone 3 is assembled. The second processing unit L2 on the side (upper side in the drawing) and the tapered portion 16' provided between the i-th processing unit L1 and the second processing unit L2 are further subjected to cable processing. Specifically, the outer peripheral portion of the cable insulation 12 is divided into a first treatment portion L1 to which the rubber stress cone 3 is attached, and a diameter from the front end portion (high pressure side) of the second treatment portion L1 toward the distal end side (second treatment) The portion L2 side is smoothly reduced and has a tapered portion 16 of a narrow end and a portion from the front end portion (high voltage side) of the tapered portion 6 to the front end portion (high voltage side) of the cable insulation 12 2 processing unit L2. In the outer peripheral portion of the cable insulation insulator 2 corresponding to the first processing portion L1, "predetermined surface treatment", that is, "surface treatment for obtaining the necessary electrical characteristics at the interface between the rubber stress cone 3 and the cable insulation 12" is performed. . For example, in the present embodiment, the i-th processing unit L1 is ground by a glass cutter, sandpaper or the like to perform mirror processing. When it is suitable for low voltage levels, it can also be ground only with sandpaper without mirror processing. Further, the outer diameter of the first treatment portion L1 is larger than the inner diameter of the rubber stress cone 3 to be described later. In the present embodiment, the difference between the outer diameter of the first treatment portion L1 and the inner diameter of the insertion hole of the rubber stress cone 3 is at least about 2 mm, and the diameter difference can be increased by at least 2 mm. The cable-line insulator 12 155396.doc The interface between the outer peripheral portion and the rubber stress cone 3 is the outer peripheral portion of the interface between the outer surface of the rubber and the rubber stress cone 3, and the electric-line insulator 12 corresponding to the second processing portion L2 is as follows. More! The processing portion u has a low electric field, so that the outer peripheral portion of the electric energy insulator 12 corresponding to the second processing portion L2 can be made to have a smaller inner diameter than the rubber stress cone 3 by the rough cutting method. The electric field in the radial direction of the cable insulation Μ corresponding to the second processing unit L2 is represented by Vi (kV/mm), and the electric field formed in the axial direction (surface direction) of the second processing unit is V2 (kv/mm). In the case of the relationship of ¥1>%, since the electric field formed in the cable insulation 12 corresponding to the second processing unit L2 is low, the cable insulation 12 corresponding to the second processing unit L2 is provided. The outer diameter is made thinner than the inner diameter of the rubber stress cone 3, that is, even if the outer diameter is made thinner than the gauge thickness, there is no electrical problem. This point will be further explained in the explanation of FIG. 6 which will be described later. Therefore, the cable wire insulator 12 corresponding to the second processing unit L2 can be processed and stripped by, for example, a dedicated stripping tool (not shown), and an electric gauge having a smaller inner diameter than the rubber stress cone 3 can be formed. The outer diameter of the wire insulator 12. In this case, if the cable insulation 12 corresponding to the second processing unit L2 has a relationship of Vi > Vz, as long as the cable insulation 12 exists on the cable conductor ^, even if it is only extremely thin, the thickness is sufficient. Meet electrical needs. Therefore, the cable wire insulator 12 corresponding to the second processing unit L2 is in a rough cutting state formed by cutting (machining) on the outer peripheral portion of the cable wire insulator 12, and even in a state in which irregularities are formed on the outer surface, the elliptical shape is also good. Well, there are no concerns about electrical characteristics. In this way, 15S396.doc 201223047 does not require a conventional surface treatment on the outside of the cable insulation 丨2 corresponding to the second processing unit L2. In addition, since the tapered portion 16 is provided between the i-th processing portion L1 and the second processing portion L2 of the cable insulation 12, the outer surface of the tapered portion 16 is also the same as the first processing portion L1. "Surface treatment", that is, "surface treatment for obtaining the necessary electrical characteristics at the interface between the rubber stress cone 3 and the cable insulation 12". In this manner, when the rubber stress cone 3 is inserted into the cable insulation 12, the inner circumference of the rubber stress cone 3 and the outer circumference of the cable insulation 12 are densely formed in the range between the tapered portion 16 to the first treatment portion L1. Therefore, it is possible to prevent a small amount of air from being caught in the interface between the rubber stress cone 3 and the cable insulation 12 and thus it is possible to provide an electro-optical terminal connector having excellent electrical characteristics. Further, the "predetermined process" is performed on the front end side (high voltage side) of the outer semiconductive layer 13 of the cable to form the outer semiconductive layer 13' required for assembly. That is, the so-called "established treatment" is "the outer semiconductive layer 13 necessary for assembling the rubber stress cone 3,". The predetermined process in Fig. 2 is to eliminate the difference between the outer semiconductive layer 13 of the cable and the cable insulation 12 at the end (high voltage side) of the outer semiconductive layer 13 of the cable, across the stripped cable The wire insulator 12 and the outer semiconductive layer 13 of the cable wire are formed by assembling a rubber semi-conducting layer 17 by a semi-conductive self-adhesive tape (ACP tape or the like) to form a module semi-conductive layer 17 to form an assembled rubber stress cone 3 The outer semiconductive layer 13' is necessary for the time. In addition, in order to obtain the necessary electrical characteristics after assembling the rubber stress cone 3, it is also possible to entangle the 155396.doc -11 - 201223047 around the semi-conductive self-adhesive tape, and only use the outer portion of the SEM wire after the stripping The semi-conductive layer 13 is formed to form the outer semi-conductive layer 13·«». Also in the figure, reference numeral 18 is a bed disposed on the outer circumference of the cable shielding layer 14, 19 is a grounding wire, and 20 is assembled in a cable conductor. The conductor terminals on the front end portion, 21 is an upper fitting, 22 is a bottom fitting, 23 is a cylindrical metal adapter that is airtightly assembled on the bottom fitting 22, 24 is a lower copper tube, and 25 is a span. An anti-corrosion layer is disposed between the cable sleeve and the lower copper tube 24, 26 is a screw, 27 is a support obstruction, and 28 is a stand. Fig. 4 is a partial cross-sectional view showing the metal-integrated stress cone as an embodiment of the rubber stress cone 3 in the present invention. In the drawings, the same portions as those in Figs. 2 and 3 are denoted by the same reference numerals and the detailed description thereof will be omitted. In Figs. 2, 3 and 4, the fitting-integrated stress cone of the present invention is provided on the outer periphery of the first processing portion L1 of the cable insulation 12 so as to straddle the front end portion of the outer semiconductive layer 13' (high voltage) a stress cone body 31 formed of a rubber-like elastic body assembled on the side and the upper side in the figure; and a fitting which surrounds the outer semiconductive layer 13 and is disposed on the low pressure side of the stress cone body 31 in a body manner 32; and appears cylindrical in its entirety. In the present embodiment, the length of the metal-integrated stress cone is about 4 〇 5 mm, and the outer diameter of the stress cone body 3 ι is about 1 80 mm. The inner diameter of the insertion hole which is placed in the center of the stress cone body 3 is about 64 mm. The stress cone main body 3 1 is provided with a cylindrical semi-conductor portion 34 formed of a rubber-like elastic body such as a material disposed on the rear end side (lower side and lower side of the drawing), and a semiconducting body. Front side 34 of the front side (upper side in the figure) and thereafter 155396.doc
S 12 201223047 端部（圖中之下側）是與半導電體部34呈同心狀連接設置， 由矽膠等之橡膠狀彈性體所形成的圓筒狀絕緣體部35 ;及 連接設置於絕緣體部3 5之後端部，並以整體式設置於半導 電體部34的外周而由矽膠等之橡膠狀彈性體所形成的圓筒 狀絕緣保護層3 6 ;又該等半導電體部3 4、絕緣體部3 5及絕 緣保護層36是與後述之金具32一起利用模具來形成一體化 構造。 在半導電體部34之前端部，設置由靠近半導電體部34前 端部之内周面（立上部）而朝向絕緣體部35前端部之外周部 而逐漸擴徑並具有錐形底狀之彎區界面的電場和緩部37, 此外在後端部之外周緣部上，朝向後端側與半導電體部 呈同心狀而突出設置圓筒狀之半導電裙部38。該半導電體 部34與半導電裙部38是以一體成形方式作出。在本實施例 中，半導電體部34包含半導電裙部38後之轴方向長度約為 180 mm，外徑約為156 mm，其中半導電裙部“之軸方向 長度約為40 mn^此外在半導電體部34之立上部附近，應 力錐本體3丨具有能充分的將鎖緊力作用於其與電纜線絕緣 體12及電纜線外部半導電層13之界面上的厚度。 絕緣體部3 5前端部之外周上設置朝向前端部而逐漸擴徑 並具有®較之外面39，此外在高額端部之内周緣部設 置與絕緣體部35呈同讀，並具有由高壓側端部附近朝向 咼壓侧端部而逐漸擴徑之内面的鬱金香狀凹陷部4 〇。經由 設：此凹陷部40，可以防止在應力錐本體31之前端部的絕 緣流體4、應力錐本體31的絕緣體部35、電纜線絕緣體以 155396.doc 201223047 三重合點（Triple junction)P上產生電場集中。在本實施例 中，凹陷部40之深度約為60 mm，凹陷部40之小徑部口徑 約為80 mm，大徑部口徑約為120 mm。 此外’在絕緣保護層3 6之後端部，朝向後端侧而突出設 置與絕緣保護層36呈同心狀之圓筒狀絕緣裙部41。此絕緣 保護層36與圓筒狀絕緣裙部41是形成一體成形之構造。此 處之絕緣裙部41是以一體狀設置於半導電裙部38的外周， 同時絕緣裙部41之後端部是較半導電裙部3 8之後端部更朝 向後端側而延伸，並在延伸出後絕緣裙部41的低壓側端部 之内周上設置環狀的突起32e。在本實施例中，絕緣裙部 41的軸方向長度約為半導電裙部38長度之2倍。此外，絕 緣裙部41的厚度約為半導電裙部38厚度之2倍。還有絕緣 體部35包含絕緣保護層36並再包含絕緣裙部4丨後之外徑約 為丨80 mm，包含絕緣保護層36並包含絕緣裙部“後之軸方 向長度約為370 mm。 金具32中具備.第1圓筒部32a，其外周部係密著於半導 電裙4 38之内周上，及以同心狀而連接設置在第^圓筒 部32a之後端側’其外周部係密著於絕緣裙部^内周部 上的第2圓筒部32b ;及以同心灿高，由 乂问〜狀而連接設置在在第2圓筒 部32b之後端側，且後端部冰 交磲°P之外周上具有凸緣32c的第3圓 筒部32d ;其中第1圓筒部32 笛 1 第2圓筒部32b及第3圓筒部 32d之内周面間並無段差。 此•外，第1圓筒部32a之外徑是 較2圓筒部3 2b之外徑為小的丨僻 的J k ’在2圓筒部32b之後端部 sx置與環狀的突起32e相互卡人的提 卞α的環狀之凹溝32f。在本實 155396.doc 201223047 施例中’金具32是由鋁材所形成’凸緣32c之外徑約為ι95 mm’金具32之内徑約為136mm。 具備著此種應力錐本體31及金具32之金具一體型應力 錐，是以下述方式作成。首先應力錐本體31之半導電橡膠 部分，亦即半導電體部34及半導電裙部38是利用模具 (Mold)成形作出，再將由模具成形作出之半導電橡膠部分 (半導電體部34及半導電裙部38)鑲嵌於金具32上。在此場 合’半導電裙部38之内周，會與第1圓筒部32a之外周部相 互接觸。然後將形成一體之半導電橡膠部分（半導電體部 34及半導電裙部38)及金具32置於模具内，將應力錐本體 31之絕緣橡膠部分，亦即絕緣體部35、絕緣保護層36及絕 緣裙部41利用模具成形作出。以此方式，就可以獲得將金 具32以一體方式設置於應力錐本體31之低壓側上的金具一 體型應力錐。具體而言，是分別讓金具32上第j圓筒部32a 的外周部是與應力錐本體31上半導電裙部38的内周部接 觸，而金具32上第2圓筒部32b的外周部是與應力錐本體31 上絕緣裙部41的内周部接觸，就得到應力錐本體31上絕緣 裙部41的突起32e嵌合於金具32上第2圓筒部32b的凹溝32f 申之金具一體型應力錐。 接下來按照圖5，針對在本實施例中作為橡膠應力錐3之 金具一體型應力錐組裝於電纜線絕緣體上的組裝方法加以 說明。還有在該圖式中，與圖2、圖3及圖4中共通之部分 是被付與相同的符號並省略其詳細說明。 首先在電纜線絕緣體12之第1、第2處理部L1、L2的外表 155396.doc 15 201223047 面上塗佈矽油等之潤滑劑（未予圖示）。再如圖2所示，將將 配设在靠近電纜線端末2之電纜線套管15端部上的環狀的 底部金具22，夾介著支持碍子27等來加以固定，同時將位 於圓筒狀配接器23之下面側（後端面側）的凸緣23a ,該配接 器是被配設成如同包圍著電纜線端末2之外部半導電層π· 的外周，以氣密狀態固定於底部金具22的上面側（前端面 側）。 在此狀態下，如圖5所示，作為橡膠應力錐3之金具一體 型橡膠應力錐，是在作為第2處理部L2之電纜線絕緣體12 的外周從電纜線端末2之前端部（高壓側），將該金具一體型 應力錐之金具32朝向配接器23(參照圖2)側而插入。 如此之後，電纜線絕緣體12之第2處理部L2的外徑是較 構成金具一體型應力錐之應力錐本體31的内徑來得細小， 故在插入金具一體型應力錐之際，就可以讓應力錐本體31 以無磨擦阻力而輕易的插穿過電纜線絕緣體12之第2處理 部L2的外周部》 然後’當應力錐本體3 1到達前端細窄狀之錐形部丨6及第 1處理部L1之前端部（高壓側）時，由於第1處理部l 1之外徑 是作成較應力錐本體31之内徑為大，故是利用和習知的橡 膠應力錐之裝配方法同樣的方法來從該到達位置將應力錐 本體31滑移至所定的位置。以此方式，在應力錐本體31之 内周部密著於第1處理部L1之外周部的狀態，亦即施加既 定的面壓於第1處理部L1之外周部與應力錐本體31之插入 孔33(參照圖4)的内周部間之方式，就可以在裝配金具一體 155396.doc -16- 201223047 型應力錐時確保該界面之絕緣狀態。 以此方式裝配後’金具一體型應力錐上金具32的凸緣 32c之下面側，是夾介著〇形環（未予圖示）而與配接器以上 凸緣23b之上面側接觸，再經由螺絲（未予圖示）將兩者予以 固定，就形成了密封部（油封部）。 接下來如圖2所示’利用碍管5將電纜線端末2之外周予 以包圍，並將其低壓側端部載置於底部金具22上再利用螺 絲26將兩者固定，然後在碍管5内充填矽油等之絕緣流體 4 〇 以此方式來確保碍管5内空間之電氣絕緣性能。接下 來，在碍管5之上部組裝上部金具21，讓電纜線端末2側之 導體端子20貫穿過上部金具21，與上部導體3〇形成電氣連 接。並在電纜線端末2之後端部形成防蝕層25後，完成了 電纜線終端連接頭之組裝作業。還有，上部導體是與圖 中未顯示之架空線、導引線等的高電壓導體連接。 圖6為將電纜線終端連接頭的電場強度（電場應力）和比 較例予以同時顯示之電場解析圖，第6A圖為讓電纜線絕緣 體12之外徑（電纜線絕緣體12之外周部）配合橡膠應力錐3之 内控狀態作為比較例而作成的電場解析圖，第6B圖為將電 纜線絕緣體之外周部盡量削除的狀態作為其它實施例而作 成的電場解析圖，具體而言，就是將與電纜線絕緣體12之 第2處理部L2相對應部分的外周面予以盡量削除的狀態下 所得到之電場解析圖。第6八圖、第6B圖中由中心軸朝向 外側，分別記載電纜線導體11、電纜線絕緣體丨2、碍管5 J55396.doc -17- 201223047 内周面及碍管外周面（襞部）之輪廓線’在電纜線絕緣體i2 與碍管5之間是記載靠近橡膠應力錐3之前端部的輪廊線， 並將此輪廓線上之電場強度以箭頭來表示。S 12 201223047 The end portion (lower side in the figure) is a cylindrical insulator portion 35 which is formed concentrically with the semiconducting portion 34 and is formed of a rubber-like elastic body such as silicone rubber; and is connected to the insulator portion 3 a rear-end 5, and a cylindrical insulating protective layer 3 6 formed of a rubber-like elastic body such as silicone rubber integrally provided on the outer periphery of the semi-conductor portion 34; and the semi-conductor portion 34 and the insulator The portion 35 and the insulating protective layer 36 are integrally formed by a mold together with a fitting 32 to be described later. At the front end portion of the semiconductive portion 34, a curved portion which is gradually expanded in diameter toward the outer peripheral portion of the front end portion of the insulator portion 35 and has a tapered bottom shape is provided from the inner peripheral surface (upper upper portion) of the front end portion of the semiconductive portion 34. The electric field and the relief portion 37 of the region interface are further provided with a cylindrical semiconductive skirt portion 38 concentrically with the semiconducting portion toward the rear end side at the outer peripheral portion of the rear end portion. The semiconducting body portion 34 and the semiconductive skirt portion 38 are formed in an integrally formed manner. In the present embodiment, the semiconducting portion 34 includes a semiconductive skirt 38 having an axial length of about 180 mm and an outer diameter of about 156 mm, wherein the semiconductive skirt has an axial length of about 40 mn. In the vicinity of the upper portion of the semiconductive portion 34, the stress cone body 3 has a thickness sufficient to apply a locking force to the interface between the cable insulation 12 and the outer semiconductive layer 13 of the cable. The outer end portion of the front end portion is gradually expanded in diameter toward the front end portion and has a smaller outer surface 39. Further, the inner peripheral portion of the high end portion is provided in the same manner as the insulator portion 35, and has a pressure toward the vicinity of the high pressure side end portion. The tulip-shaped recessed portion 4 内 of the inner surface of the tapered end portion is gradually expanded. The recessed portion 40 prevents the insulating fluid 4 at the end portion of the stress cone main body 31, the insulator portion 35 of the stress cone main body 31, and the cable. The wire insulator generates electric field concentration on the triple junction P of 155396.doc 201223047. In the present embodiment, the depth of the depressed portion 40 is about 60 mm, and the diameter of the small diameter portion of the depressed portion 40 is about 80 mm. The diameter of the diameter is about Further, at the rear end portion of the insulating protective layer 36, a cylindrical insulating skirt 41 concentric with the insulating protective layer 36 is protruded toward the rear end side. This insulating protective layer 36 and the cylindrical insulating skirt The portion 41 is formed in an integrally formed structure. Here, the insulating skirt portion 41 is integrally provided on the outer circumference of the semiconductive skirt portion 38, while the rear end portion of the insulating skirt portion 41 is more rearward than the end portion of the semiconductive skirt portion 38. The end portion of the insulating skirt portion 41 is provided with an annular projection 32e. The length of the skirt 38 is twice. Further, the thickness of the insulating skirt 41 is about twice the thickness of the semiconductive skirt 38. The insulator portion 35 also includes an insulating protective layer 36 and further includes an outer diameter of the insulating skirt 4 It is approximately 丨80 mm and contains an insulating protective layer 36 and contains an insulating skirt. The rear axial length is approximately 370 mm. The first cylindrical portion 32a is provided in the metal fitting 32, and the outer peripheral portion thereof is adhered to the inner circumference of the semiconductive skirt 438, and is connected concentrically to the end portion of the second cylindrical portion 32a. The second cylindrical portion 32b which is adhered to the inner peripheral portion of the insulating skirt portion, and the concentric portion is connected to the second cylindrical portion 32b at the rear end side and the rear end portion. The third cylindrical portion 32d having the flange 32c on the outer circumference of the ice exchange 磲P; wherein the first cylindrical portion 32 has no step between the inner circumferential surfaces of the second cylindrical portion 32b and the third cylindrical portion 32d. . In addition, the outer diameter of the first cylindrical portion 32a is smaller than the outer diameter of the second cylindrical portion 32b, and the end portion sx and the annular projection 32e are formed after the second cylindrical portion 32b. The annular groove 32f of the 卞α of the mutual card. In the embodiment 155396.doc 201223047, the 'gold fitting 32 is formed of aluminum material'. The outer diameter of the flange 32c is about ι 95 mm. The inner diameter of the metal fitting 32 is about 136 mm. A fitting-type stress cone having such a stress cone body 31 and a fitting 32 is produced in the following manner. First, the semiconductive rubber portion of the stress cone body 31, that is, the semiconducting portion 34 and the semiconductive skirt portion 38 are formed by molding a mold, and then forming a semiconductive rubber portion (the semiconducting portion 34 and The semiconductive skirt 38) is mounted on the hardware 32. In this case, the inner circumference of the semiconductive skirt portion 38 comes into contact with the outer peripheral portion of the first cylindrical portion 32a. Then, an integral semiconductive rubber portion (semiconductor portion 34 and semiconductive skirt portion 38) and a fitting 32 are placed in the mold, and the insulating rubber portion of the stress cone body 31, that is, the insulator portion 35 and the insulating protective layer 36 are placed. And the insulating skirt 41 is formed by mold forming. In this way, it is possible to obtain a fitting-type stress cone in which the metal fitting 32 is integrally provided on the low-pressure side of the stress cone body 31. Specifically, the outer peripheral portion of the j-th cylindrical portion 32a of the metal fitting 32 is in contact with the inner peripheral portion of the semiconductive skirt portion 38 of the stress cone main body 31, and the outer peripheral portion of the second cylindrical portion 32b of the fitting 32 is formed. When the inner peripheral portion of the insulating skirt portion 41 of the stress cone main body 31 is in contact with each other, the projection 32e of the insulating skirt portion 41 of the stress cone main body 31 is fitted into the concave groove 32f of the second cylindrical portion 32b of the fitting 32. Integrated stress cone. Next, an assembly method in which the fitting-integral stress cone as the rubber stress cone 3 is assembled to the cable insulation in the present embodiment will be described with reference to Fig. 5 . In the drawings, the same portions as those in Figs. 2, 3, and 4 are denoted by the same reference numerals, and the detailed description thereof will be omitted. First, a lubricant (not shown) such as eucalyptus oil is applied to the outer surface of the first and second processing units L1 and L2 of the cable insulation 12, 155396.doc 15 201223047. Further, as shown in FIG. 2, the annular bottom fitting 22 disposed at the end of the cable sleeve 15 near the end of the cable end is fixed by sandwiching the support 27 and the like, and is placed in the cylinder. a flange 23a on the lower side (rear end side) of the adapter 23, the adapter being disposed so as to be surrounded by the outer circumference of the outer semiconductive layer π· of the cable end 2, and fixed in an airtight state The upper side (front end side) of the bottom fitting 22 is. In this state, as shown in FIG. 5, the rubber-integrated rubber stress cone as the rubber stress cone 3 is the end portion from the end of the cable end 2 on the outer circumference of the cable insulation 12 as the second treatment portion L2 (high-pressure side) The gold fitting-integrated stress cone of the fitting 32 is inserted toward the side of the adapter 23 (see Fig. 2). After that, the outer diameter of the second processing portion L2 of the cable insulation 12 is smaller than the inner diameter of the stress cone body 31 constituting the integral stress cone of the fitting, so that the stress can be obtained when the fitting is integrated into the stress cone of the fitting The taper body 31 is easily inserted through the outer peripheral portion of the second processing portion L2 of the cable insulation 12 without frictional resistance. Then, the stress cone body 31 reaches the narrow tapered portion 丨6 and the first treatment. In the case of the front end portion (high pressure side) of the portion L1, since the outer diameter of the first treatment portion 11 is larger than the inner diameter of the stress cone main body 31, the same method as the assembly method of the conventional rubber stress cone is used. The stress cone body 31 is slid from the arrival position to a predetermined position. In this manner, the inner peripheral portion of the stress cone main body 31 is adhered to the outer peripheral portion of the first treatment portion L1, that is, the predetermined surface pressure is applied to the outer peripheral portion of the first treatment portion L1 and the insertion of the stress cone body 31. In the manner of the inner peripheral portion of the hole 33 (refer to FIG. 4), the insulation state of the interface can be ensured when the fitting 158396.doc -16-201223047 type stress cone is assembled. After being assembled in this manner, the lower side of the flange 32c of the fitting on the fitting of the fittings of the fittings is in contact with the upper side of the flange 23b of the adapter, via a 〇-shaped ring (not shown), and then The seal portion (oil seal portion) is formed by fixing both of them by screws (not shown). Next, as shown in FIG. 2, 'the outer circumference of the cable end 2 is surrounded by the obstruction tube 5, and the low-pressure side end portion is placed on the bottom fitting 22, and then the screws 26 are used to fix the two, and then the tube 5 is filled. The insulating fluid 4 such as eucalyptus oil is used in this way to ensure the electrical insulation properties of the space inside the tube 5. Next, the upper fitting 21 is assembled to the upper portion of the tube 5, and the conductor terminal 20 at the end 2 of the cable is passed through the upper fitting 21 to be electrically connected to the upper conductor 3A. After the corrosion-resistant layer 25 is formed at the end of the cable end 2, the assembly of the cable terminal is completed. Further, the upper conductor is connected to a high voltage conductor such as an overhead wire or a guide wire which is not shown. Fig. 6 is an electric field analysis diagram showing electric field strength (electric field stress) of the cable terminal connector and a comparative example, and Fig. 6A is a view showing the outer diameter of the cable insulation 12 (outer peripheral portion of the cable insulation 12). An electric field analysis diagram of the internal control state of the stress cone 3 is a comparative example, and FIG. 6B is an electric field analysis diagram of a state in which the outer circumference of the cable insulation is removed as much as possible. Specifically, the electric cable is used. An electric field analysis map obtained in a state where the outer circumferential surface of the corresponding portion of the second processing portion L2 of the wire insulator 12 is removed as much as possible. In the sixth and sixth diagrams, the center line is directed outward, and the outline of the cable conductor 11, the cable insulation 丨2, the inner circumference of the tube 5, and the outer circumference of the tube (the ankle) are respectively indicated. The line 'between the cable insulation i2 and the obstruction tube 5 is a wheel line which is located near the end of the rubber stress cone 3, and the electric field strength on this contour line is indicated by an arrow.
現有在第6A 之長度愈長 圖、第6B圖中’箭頭是表示電場強度，箭頭線 則表示電場強度愈大。 由第6A圖、第6B圖可知，電纜線絕緣體丨2之外巧面（與 符號12指示線之外側（6圖中之右側）的中心軸平行之線）上 箭頭線之長度，是在靠近配置橡膠應力錐3之處較長，並 由橡膠應力錐3朝向前端部而逐漸變得較招 人’）伙湖_。亦即，可得 知電纜線絕緣體12外周面之電場，是集中在靠近配置橡膠 應力錐3之處。故、與電纜線絕緣體12之第2處理部L2對應 部分，即使是只有極薄的厚度亦無電氣上的問題。但是當 前述乂丨〉、2之關係不存在時，亦即形成於第2處理部^之 軸方向的電場V2,是在形成於電纜線絕緣體之徑方向電場 以上的場合，就有可能在電纜線絕緣體之徑方向造成閃絡 破壞之問題。此夕卜，當在第2處理部L2有電規線導體叫 露之場合，會因而使得電纜線絕緣體上之沿面距離變短， 讓電場集中在外露部分之電纜線導體丨〗’故可能產生無法 得到符合電缆線終端連接頭所需之電氣特性的問題。因 次，電纜線絕緣體12之厚度必須要滿足VP%之關係。 如上所述，當電纜線終端連接頭採用本實施形態之金具 一體型應力錐時，可達成以下的效果。 、 第1，經由CV電規線1端部之分段剖剝處理而露出之電 纜線絕緣體12的外周部，可區分為組裝橡膠應力錐3之第i 155396.doc •18· 201223047 處理部U，及直徑由第1處理部L1之前端部朝向前端侧平 月也縮j的則知細窄狀錐形部丨6，及由錐形部丨6之前端部 至電缵線絕緣體12之前端部為止的第2處理部L2，同時由 於第2處理部L2之外徑是較橡膠應力錐3之内徑為細故可 以輕易的在第2處理部L2上進行橡膠應力錐3之插穿作業， • &因此相較於f知的m終端連接頭能大幅的減少裝配 橡膠應力錐3所需之工時。具體而言，以習知的方式如需 要2〜3位作業貞進行轉應力…之裝配時，制本發明時 只需要1位作業員即可進行橡膠應力錐3之裝配。 第2八需要在裝配橡膠應力錐3之第1處理部L1以及較 佳方式同時在錐形部16上進行電缓線絕緣體12之既定表面 處理即可，相較於習知的電魔線終端連接頭能大幅的減少 電缓線絕緣體12之表面處理範圍。具體而言，經由前述之 分段剖剝處理而露出之電纜線絕緣體12的處理長度中 左右可利用例如機械加工來處理，&以電瘦線絕緣體以 表面處理作業而5，可以將極為花費工時之m絕緣體 12的既定表面處理範圍降至約20〇/。。 第3，在第1處理部li實施既定的表面處理後，第2處理 : 部[2只要進行例如機械加工即可，㈣，第2處理部L2在 : 例如機械加工後之狀態下（電纜線絕緣體12之外周部施行 粗切削的狀態）即完成了電纜線絕緣體12之外周部處理， 因此就不需要在該部分利用砂紙等來進行電纔線絕緣體工2 之鏡面加工等的既定表面處理，故相較於習知的電纜線終 端連接頭能大幅的減少電纜線處理所需的工時。 155396.doc •19- 201223047 第4，在第1處理部L1與第2處理部L2之間設置前端細窄 狀的錐形部16之場合，將橡膠應力錐3插入電纜線絕緣體 12之時，可以讓橡膠應力錐3無間隙的確實密著於該錐形 部16之外周上，因此可以避免在密著後之橡膠應力錐3與 錐形部16間發生空隙（Void)。 第5，當在在第1處理部L1與第2處理部L2之間之錐形部 16上施行與第i處理部L1相同的既定表面處理之場合，可 以防止在插入時傷及橡膠應力錐3之内周，並還可以防止 微少的空氣捲入橡膠應力錐3與電纜線絕緣體12之界面， 故可以提供具有優良電氣特性的電徵線終端連接頭。 [產業上之可利用性] 在前述之實施例中，是參照圖式以特定的實施形態來針 對本發明加以說明，但本發明並不受限於這些實施形態， 只要能達到本發明之效果，亦可以作成以下所述之構成。 第1，在前述之實施例中，是使用金具一體型應力錐來 作為橡膠應力錐3，亦可以使用由半導電部及絕緣體部所 構成’整體形&是作成紡鎚形狀而具有通常構成的橡膠應 力錐（無金具橡膠應力錐）。 第2，在刖述之實施例中，雖然是針對以矽膠所形成的 橡膠應力錐3加以說明，亦可以是使用例如乙烯丙烯橡膠 等來形成該橡膠應力錐3。 在別述之貫施例中，雖然是針對在碍管5内之絕緣 流體4以充填絕緣油方式炎 万式來加以說明’亦可以是以充填SF6 氣體等之絕緣氣體來取代絕緣油。 155396.docThe longer the length of the 6A is, the larger the figure is, the arrow 6B shows the electric field strength, and the arrowed line indicates the electric field strength. It can be seen from Fig. 6A and Fig. 6B that the length of the arrow line on the outer surface of the cable insulation 丨2 (the line parallel to the central axis of the outer side of the line indicated by the symbol 12 (the right side in Fig. 6) is close to The rubber stress cone 3 is configured to be longer and gradually becomes more attractive by the rubber stress cone 3 toward the front end. That is, the electric field of the outer peripheral surface of the cable insulation 12 is known to be concentrated near the rubber stress cone 3 disposed. Therefore, there is no electrical problem even if it is only a very thin thickness corresponding to the second processing portion L2 of the cable insulation 12 . However, when the relationship between the above 乂丨 and 2 is not present, that is, the electric field V2 formed in the axial direction of the second processing unit ^ is formed in the radial direction of the cable insulator, the electric field may be in the cable. The radial direction of the wire insulator causes flashover damage. Further, when the electric treatment line conductor is exposed in the second processing portion L2, the creeping distance on the cable insulation is shortened, and the electric field is concentrated on the exposed portion of the cable conductor 丨'. The problem of meeting the electrical characteristics required for the cable terminal connector is not available. Therefore, the thickness of the cable insulation 12 must satisfy the relationship of VP%. As described above, when the cable end connector of the present invention employs the fitting-type stress cone of the present embodiment, the following effects can be achieved. First, the outer peripheral portion of the cable insulation 12 exposed by the segmentation and peeling treatment at the end of the CV gauge line 1 can be divided into the first assembly rubber stress cone 3 155396.doc • 18· 201223047 Processing unit U And the tapered narrow tapered portion 丨6 whose diameter is reduced by the front end portion of the first treatment portion L1 toward the distal end side, and the front end portion of the tapered portion 丨6 to the front end of the electric wire insulator 12 In the second processing unit L2 up to the second processing unit L2, since the outer diameter of the second processing unit L2 is smaller than the inner diameter of the rubber stress cone 3, the insertion of the rubber stress cone 3 can be easily performed on the second processing unit L2. • & therefore, compared to the m-terminal connector of the know, the man-hour required to assemble the rubber stress cone 3 can be greatly reduced. Specifically, in the conventional manner, if 2 to 3 positions of work are required to perform the assembly of the stress, the rubber stress cone 3 can be assembled only by one operator in the present invention. In the second and eighth processing, it is necessary to perform the predetermined surface treatment of the electric slow-line insulator 12 on the tapered portion 16 in the first processing portion L1 in which the rubber stress cone 3 is assembled, and the preferred method, compared to the conventional electric magic wire terminal. The connector can greatly reduce the surface treatment range of the electrical insulation insulator 12. Specifically, the left and right of the processing length of the cable insulation 12 exposed through the above-described sectional peeling process can be processed by, for example, machining, and the surface treatment operation by the electric thin wire insulator 5 can be extremely expensive. The predetermined surface treatment range of the m-insulator 12 of the working hour is reduced to about 20 〇/. . Third, after the predetermined surface treatment is performed in the first processing unit li, the second processing unit 2 can be, for example, machined, (4), and the second processing unit L2 is, for example, in a state after machining (cable line). In the state in which the outer peripheral portion of the insulator 12 is rough-cut, that is, the outer peripheral portion of the cable insulation 12 is completed, it is not necessary to perform predetermined surface treatment such as mirror processing of the electric wire insulator 2 by using sandpaper or the like in this portion. Therefore, compared with the conventional cable terminal connector, the man-hour required for cable processing can be greatly reduced. 155396.doc • 19-201223047 Fourth, when the tapered portion 16 having the narrow end is provided between the first processing unit L1 and the second processing unit L2, when the rubber stress cone 3 is inserted into the cable insulation 12, The rubber stress cone 3 can be surely adhered to the outer circumference of the tapered portion 16 without a gap, so that a void (Void) between the rubber stress cone 3 and the tapered portion 16 after the adhesion can be avoided. Fifthly, when the predetermined surface treatment similar to the i-th processing unit L1 is performed on the tapered portion 16 between the first processing unit L1 and the second processing unit L2, it is possible to prevent the rubber stress cone from being damaged at the time of insertion. In the inner circumference of 3, it is also possible to prevent the minute air from being caught in the interface between the rubber stress cone 3 and the cable insulation 12, so that the electric wire terminal connector having excellent electrical characteristics can be provided. [Industrial Applicability] In the above-described embodiments, the present invention has been described with reference to the drawings in a specific embodiment. However, the present invention is not limited to the embodiments as long as the effects of the present invention can be attained. It can also be constructed as described below. First, in the above-described embodiment, a gold-integrated stress cone is used as the rubber stress cone 3, and the semi-conducting portion and the insulator portion may be used to form a monolithic shape and have a general shape. Rubber stress cone (no gold rubber stress cone). Secondly, in the embodiment described later, the rubber stress cone 3 formed of silicone rubber may be described, and the rubber stress cone 3 may be formed using, for example, ethylene propylene rubber. In the other embodiments, the insulating fluid 4 in the tube 5 is filled with an insulating oil. The insulating oil may be replaced by an insulating gas filled with SF6 gas or the like. 155396.doc
S •20- 201223047 第4，在前述之實施例中，雖然是針對將金具一體型應 力錐之金具32組裝於配揍器23上來說明，亦可以不配置配 接器23而將金具一體型應力錐之金具32以氣密方式組裝於 底部金具22上。 第5 ,在前述之實施例中，雖然針對適用於空氣中終端 連接頭之場合加以說明’亦可以是適用於氣體中終端連接 頭或油中終端連接頭。 第ό，在前述之實施例中’雖然是以額定電壓為275 kv 為對象加以說明，亦可以是適用於較275 kv為低之電壓或 較275 kV為高之電壓。 2010年6月7日提出申請專利之特願2〇1043〇 139的日本 專利申請中所包含之發明說明、圖式及摘要等的開示内 容，亦全部援用於本專利申請之中。 【圖式簡單說明】 圖1係習知的電纜線終端連接頭之局部剖面圖； 圖2係本發明之一實施例中電纜線終端連接頭之局部剖 面圖； 圖3係顯示本發明中電纜線絕緣體外周部之處理狀況的 不意圖； 圖4係係顯示本發明中橡膠應力錐之一實施例的局部剖 面圖； 圖5係顯示本發明中橡膠應力錐組裝於電纜線絕緣體狀 況的示意圖；及 圖6A、6B係本發明之一實施例中電纜線終端連接頭的 155396.doc •21- 201223047 電場解析圖。 【主要元件符號說明】 1 CV電纜線（電纜線） 2 電纜線端末 3 橡膠應力錐 4 絕緣流體 5 碍管 11 電纜線導體 12 電纜線絕緣體 13 電纜線外部半導電層 13' 外部半導電 14 電纜遮蔽層 15 電纜線套管 16 錐形部 17 模組半導電層 18 座床 19 接地線 20 導體端子 21 上部金具 22 底部金具 23 金屬製配接器 23a 凸緣 23b 凸緣 24 下部銅管 155396.doc •22- 201223047 25 防蝕層 26 螺絲 27 支持碍子 28 架台 30 上部導體 31 應力錐本體 32 金具 32a 第1圓筒部 32b 第2圓筒部 32c 凸緣 32d 第3圓筒部 32e 突起 32f 凹溝 33 插入孔 34 半導電體部 35 圓筒狀絕緣體部 36 圓筒狀絕緣保護層 37 電場和緩部 38 半導電裙部 39 外面 40 凹陷部 41 圓筒狀絕緣裙部 100 電纜線絕緣體 110 橡膠應力錐 155396.doc •23· 201223047 120 環氧樹脂座 130 外部半導電層 200 電纜線 210 橡膠應力錐110之按壓裝置 220 防蝕層 310 底部金具 320 下部金具 400 絕緣流體 500 上部金具 600 上部覆蓋 700 支持碍子 L0 加工範圍 LI 第1處理部 L2 第2處理部 P 三重合點 155396.doc • 24- sS • 20- 201223047 Fourth, in the above-described embodiment, although the fitting 32 of the fitting-type stress cone of the fitting is assembled to the fitting 23, the fitting of the adapter 23 may be omitted. The cone metal fixture 32 is assembled to the bottom fitting 22 in a gastight manner. Fifth, in the foregoing embodiments, although it is described for the case where it is applied to the terminal connector in the air, it may be applied to a terminal connector in a gas or a terminal connector in an oil. Thirdly, in the foregoing embodiment, although the rated voltage is 275 kV, it is also applicable to a voltage lower than 275 kV or higher than 275 kV. The disclosures of the inventions, drawings, abstracts, etc., which are included in Japanese Patent Application No. 2,104,037, filed on June 7, 2010, are hereby incorporated by reference. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partial cross-sectional view of a conventional cable terminal connector; FIG. 2 is a partial cross-sectional view of a cable terminal connector in an embodiment of the present invention; FIG. 3 is a cable showing the present invention. FIG. 4 is a partial cross-sectional view showing an embodiment of the rubber stress cone of the present invention; FIG. 5 is a schematic view showing the state in which the rubber stress cone is assembled to the cable insulation in the present invention; 6A and 6B are electric field analysis diagrams of a cable terminal connector of the 155396.doc • 21-201223047 in an embodiment of the present invention. [Main component symbol description] 1 CV cable (cable) 2 Cable end 3 Rubber stress cone 4 Insulating fluid 5 Obstruction tube 11 Cable conductor 12 Cable insulation 13 Cable outer semi-conductive layer 13' External semi-conducting 14 Cable shielding Layer 15 Cable sleeve 16 Tapered 17 Module semi-conductive layer 18 Seat bed 19 Ground wire 20 Conductor terminal 21 Upper fitting 22 Bottom fitting 23 Metal adapter 23a Flange 23b Flange 24 Lower copper tube 155396.doc • 22- 201223047 25 Anti-corrosion layer 26 Screw 27 Support obstruction 28 Rack 30 Upper conductor 31 Stress cone body 32 Fitting 32a First cylindrical portion 32b Second cylindrical portion 32c Flange 32d Third cylindrical portion 32e Protrusion 32f Groove 33 Insertion hole 34 Semi-conductor portion 35 Cylindrical insulator portion 36 Cylindrical insulation protection layer 37 Electric field and relief portion 38 Semi-conductive skirt portion 39 Outside surface 40 Depression portion 41 Cylindrical insulation skirt portion 100 Cable insulation 110 Rubber stress cone 155396 .doc •23· 201223047 120 Epoxy Resin Holder 130 External Semi Conductive Layer 200 Cable 210 Resistors for Rubber Stress Cones 110 220 Corrosion Protection Layer 310 Bottom Fittings 320 Lower fittings 400 Insulating fluid 500 Upper fittings 600 Upper cover 700 Supporting obstacles L0 Machining range LI First processing unit L2 Second processing unit P Triple coincidence 155396.doc • 24- s