TW200301910A - Vacuum switch tube - Google Patents
Vacuum switch tube Download PDFInfo
- Publication number
- TW200301910A TW200301910A TW092100379A TW92100379A TW200301910A TW 200301910 A TW200301910 A TW 200301910A TW 092100379 A TW092100379 A TW 092100379A TW 92100379 A TW92100379 A TW 92100379A TW 200301910 A TW200301910 A TW 200301910A
- Authority
- TW
- Taiwan
- Prior art keywords
- shield
- tube
- vacuum
- fixed
- vacuum switch
- Prior art date
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- 239000002184 metal Substances 0.000 claims abstract description 47
- 229910052751 metal Inorganic materials 0.000 claims abstract description 47
- 230000005684 electric field Effects 0.000 claims abstract description 44
- 230000002093 peripheral effect Effects 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000008033 biological extinction Effects 0.000 claims 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 238000009413 insulation Methods 0.000 description 16
- 238000003825 pressing Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 238000003466 welding Methods 0.000 description 6
- NMFHJNAPXOMSRX-PUPDPRJKSA-N [(1r)-3-(3,4-dimethoxyphenyl)-1-[3-(2-morpholin-4-ylethoxy)phenyl]propyl] (2s)-1-[(2s)-2-(3,4,5-trimethoxyphenyl)butanoyl]piperidine-2-carboxylate Chemical compound C([C@@H](OC(=O)[C@@H]1CCCCN1C(=O)[C@@H](CC)C=1C=C(OC)C(OC)=C(OC)C=1)C=1C=C(OCCN2CCOCC2)C=CC=1)CC1=CC=C(OC)C(OC)=C1 NMFHJNAPXOMSRX-PUPDPRJKSA-N 0.000 description 5
- 239000010410 layer Substances 0.000 description 4
- 229910018503 SF6 Inorganic materials 0.000 description 3
- 239000012790 adhesive layer Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 3
- 229960000909 sulfur hexafluoride Drugs 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910000792 Monel Inorganic materials 0.000 description 1
- SIDFBLAENREVJW-UHFFFAOYSA-N [S].S(F)(F)(F)(F)(F)F Chemical compound [S].S(F)(F)(F)(F)(F)F SIDFBLAENREVJW-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/067—Evaporator fan units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/006—General constructional features for mounting refrigerating machinery components
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/06—Walls
- F25D23/062—Walls defining a cabinet
- F25D23/064—Walls defining a cabinet formed by moulding, e.g. moulding in situ
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/05—Cost reduction
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
Description
200301910 五、發明說明（1) .Γ發明所屬之技術領域】 , 本發明係關於一種真空開關管；特別係關於一種將筒 狀i外部中間屏蔽設置於真空開關管之外周，俾防止閃落 現象的真空開關管。 【先前技術】 習知真空開關管中，將真空開關管之外徑設定為小徑 _而形成有利於絕緣距離的構造，並將金屬圓筒設計為真空 容器與電電弧屏蔽兩用的真空開關管。此構造的真空開關 ”管係具備有：固定接觸構件；與此固定接觸構件相對向的 可0接觸構件；安裝於此可動接觸構件上的伸縮囊；安裝 於伸縮囊上的端板；安裝於上述固定接觸構件上的端板； 安裝於各端板上的絕緣筒；安裝於各絕緣筒上之由金屬所 構成的金屬筒；安裝於各金屬筒上的電弧屏蔽；以及安裝 方t電弧屏蔽間的中間圓筒。 真空開關管為求將管内部維持於真空，因此必須將由 陶瓷與金屬之不同種類材料所構成的端板與絕緣筒之間、 及絕緣筒與金屬筒之間予以密封。在由陶瓷所構成之絕緣 筒上，為與由接近陶瓷熱膨脹係數的金屬（例如蒙乃爾 (Μ ο n e 1 )等）所構成的金屬筒間進行密封，因此在由陶莞所 構籲的絕緣筒之端面上設置喷鍍金屬層，然後將喷鍍金屬 層與金屬筒之端面利用焊材料施行焊接。同樣地，在端板 輿絕緣筒之間亦施行焊接而密封（參照非專利文獻1 )。 【非專利文獻1】 4 中部電氣協會編「發變電所工學現場手冊（2 - 1 )」（書200301910 V. Description of the invention (1). Technical field to which the invention belongs], The present invention relates to a vacuum switching tube; in particular, it relates to a cylindrical i outer intermediate shield provided on the outer periphery of the vacuum switching tube to prevent flicker Vacuum switch tube. [Prior art] In the conventional vacuum switch tube, the outer diameter of the vacuum switch tube is set to a small diameter _ to form a structure that is favorable for the insulation distance, and the metal cylinder is designed as a vacuum switch that is used as a vacuum container and an electric arc shield. tube. The vacuum switch tube of this structure includes: a fixed contact member; a zero-contact member facing the fixed contact member; a telescoping bag mounted on the movable contact member; an end plate mounted on the telescoping bag; An end plate on the fixed contact member; an insulating cylinder mounted on each end plate; a metal cylinder made of metal mounted on each insulating cylinder; an arc shield mounted on each metal cylinder; and an arc shield mounted on the side In order to maintain the vacuum inside the tube, the vacuum switch tube must be sealed between the end plate made of different materials of ceramic and metal and the insulating tube, and between the insulating tube and the metal tube. The insulating tube made of ceramic is sealed with a metal tube made of a metal (for example, Monel (Μ ο ne 1), etc.) close to the thermal expansion coefficient of the ceramic. Therefore, the insulation made by Tao Wan is sealed. A sprayed metal layer is provided on the end surface of the tube, and then the sprayed metal layer and the end surface of the metal tube are welded with a welding material. Similarly, it is also performed between the end plate and the insulating tube. Then sealed (see Non-Patent Document 1) [1] Non-Patent Document 4 Central Association of Electrical Code. "Hair substation engineering field manual (2--1)" (book
314294.ptd 第10頁 200301910 五、發明說明（2) 名，意譯），可樂納公司（公司名，音譯），昭和55年5月30 日，ρ· 187至 1 88。 【發明内容】 發明欲解決之課題 習知真空開關管由於係如上述之構造，因此在與真空 開關管周圍之間，將產生電場強度（電位差/距離）明顯變 大的問題。 當將真空開關管使用於六氟化硫氣體中時，在絕緣筒 與由金屬所構成之端板或金屬筒的連接部處，三接點 (triple junction)的喷鍍金屬層、陶堯、六氟化硫黃氣 體之介電常數將有頗大的差異，導致電場強度明顯地提 高。但是，因為在真空開關管的設置狀態下，將金屬端子 覆蓋端板與絕緣筒的連接部，將可緩和電場，因此不致造 成問題。 換句話說，在絕緣筒與金屬筒間的連接部處，電場強 度將明顯地提高。尤其是在金屬筒之端面上所設置的噴鍍 金屬層外緣，因為形成有如刀鋒般尖銳的電極，因此在與 設置於真空開關管周圍的接地部等構造物間之電場強度將 變為極大，而有造成閃落現象的可能性。 有鑒於斯，本發明之目的在於提供一種與周圍構造物 間的電場強度較小的真空開關管。314294.ptd Page 10 200301910 V. Description of Invention (2) Name, Paraphrased), Korner Company (Company Name, Transliteration), May 30, 1985, ρ 187 to 188. [Summary of the Invention] Problems to be Solved by the Invention As the conventional vacuum switch tube has the structure as described above, a problem arises in that the electric field strength (potential difference / distance) significantly increases between the vacuum switch tube and the surroundings of the vacuum switch tube. When the vacuum switch tube is used in sulfur hexafluoride gas, at the connection part of the insulation tube and the end plate or metal tube made of metal, the metal layer of the triple junction is spray-coated, Tao Yao, The dielectric constant of sulfur sulphur hexafluoride gas will have considerable differences, resulting in a significant increase in the electric field strength. However, since the metal terminal covers the connection portion between the end plate and the insulation tube in the installation state of the vacuum switch tube, the electric field can be relaxed, so it does not cause a problem. In other words, at the connection between the insulation cylinder and the metal cylinder, the electric field strength will be significantly increased. In particular, the outer edge of the sprayed metal layer provided on the end surface of the metal cylinder has a sharp electrode like a blade, so the electric field strength between it and a structure such as a ground portion provided around the vacuum switch tube will be extremely large. , And there is the possibility of causing flashing. In view of this, an object of the present invention is to provide a vacuum switching tube having a small electric field intensity with surrounding structures.
314294.ptd 第11頁 200301910 '五、發明說明（3) 於絕緣筒與金屬筒之真空容器長度方向中間位置處的連接 部之外表面，並具有平滑曲面的外表面；且具備有外部中 間、蔽，以緩和連接部周圍之電場強度。 【，實施方式】 實施形態1 第1圖係本發明實施形態1之真空開關管之剖視圖。第 2圖係第1圖之外部中間屏蔽的分解立體圖。 真空開關管係由下述構件所構成：由不鏽鋼所構成， ‘且具有中心軸，並具電弧屏蔽功能的中間圓筒1 ;從中間 __ 1朝中心軸方向延伸且外側狹窄呈漏斗狀的筒狀，並 將固定部2 a、3 a扣合於中間圓筒1之兩端面1 a、1 b上的電 弧屏蔽2、3 ;在中間圓筒1之同軸上，端面抵接固定於電 弧屏蔽2、3之固定部2 a、3 a上的金屬筒4、5 ;配置於中間 B筒1之同軸上，並從金屬筒4、5朝外延伸，且利用連接 部6 a、6 b連接於金屬筒4、5上的絕緣筒7、8 ;將絕緣筒 7、8之端面予以密封的端板9、1 0 ;貫穿其中一方之端板 9，並固接於端板9上的固定接觸構件1 1 ;將另一方端板1 0 上所設置的開口部1 0 a予以閉塞，並朝端板9方向延伸的伸 縮囊1 2 ;以及貫穿伸縮囊1 2並固接於伸縮囊1 2上，且可接 觸#離開於固定接觸構件1 1的可動接觸構件1 3。 再者，真空開關管係具有用以覆蓋金屬筒4、5與絕緣 徜7、8間之環狀連接部6 a、6 b之外表面，並緩和連接部 6 a、6 b之電場強度的金屬製之外部中間屏蔽1 4。 1 此真空開關管在為將内部維持於1 0 _7至1 0 _8( Pa )的真空314294.ptd Page 11 200301910 'V. Description of the invention (3) The outer surface of the connection part at the middle position in the length direction of the vacuum container of the insulation tube and the metal tube, and has a smooth curved outer surface; To reduce the electric field strength around the connection. [Embodiment] Embodiment 1 FIG. 1 is a cross-sectional view of a vacuum switch tube according to Embodiment 1 of the present invention. Figure 2 is an exploded perspective view of the external intermediate shield of Figure 1. The vacuum switch tube system is composed of the following components: a middle cylinder 1 made of stainless steel and having a central axis and an arc shielding function; extending from the middle _ 1 toward the central axis and having a narrow funnel shape on the outside It is cylindrical, and the fixing portions 2 a and 3 a are fastened to the arc shields 2 and 3 on the two end surfaces 1 a and 1 b of the intermediate cylinder 1. On the coaxial axis of the intermediate cylinder 1, the end faces abut and are fixed to the arc. The metal cylinders 4, 5 on the fixed parts 2 a, 3 a of the shields 2 and 3; arranged on the coaxial of the middle B cylinder 1 and extending outward from the metal cylinders 4, 5 and using the connection parts 6 a, 6 b Insulating cylinders 7, 8 connected to metal cylinders 4, 5; end plates 9, 10 which seal the end surfaces of the insulating cylinders 7, 8; one of the end plates 9, which penetrates, and is fixed to the end plates 9 A fixed contact member 1 1; an opening portion 10 a provided on the other end plate 10 is closed, and the expansion bag 12 is extended in the direction of the end plate 9; and the expansion bag 12 is penetrated and fixed to the expansion bag 1 2 ， 可可 可 ## Moveable to the movable contact member 1 3 of the fixed contact member 1 1. In addition, the vacuum switch tube has a ring-shaped connecting portion 6 a, 6 b covering the outer surfaces of the metal cylinders 4, 5 and the insulating cymbals 7, 8 and reducing the electric field strength of the connecting portions 6 a, 6 b. Metal outer shield 1 4 1 This vacuum switch tube is used to maintain the vacuum of the interior between 10 _7 to 10 _8 (Pa).
-314294.ptd 第12頁 200301910 五、發明說明（4) 度，將金屬筒的中間圓筒1與電弧屏蔽2、3之間、電弧屏 蔽2、3與金屬筒4、5之間、金屬筒4、5與絕緣筒7、8之 間、絕緣筒7、8與端板9、1 0之間，分別利用焊接之方式 進行密封而形成真空容器1 4。此外，在端板9與固定接觸 構件1 1之間、端板1 0與伸縮囊1 2之間、伸縮囊1 2與可動接 觸構件1 3之固定部之間，亦利用焊接方式施行氣密密封。 此真空開關管的外部中間屏蔽1 4係配置於真空容器1 5 之外側，藉由覆蓋金屬筒4、5與絕緣筒7、8之連接部6 a、 6 b之外表面，並將金屬筒4、5設定為等電位之方式，便具 有緩和在連接部6 a、6 b處所產生之電場強度明顯增加的作 用。此外，真空開關管中，端板9、 1 0與絕緣筒7、8間的 連接部係由未圖示的金屬端子所覆蓋，而緩和該等連接部 的電場，使電場強度變得比較小。如此，藉由外部中間屏 蔽1 4與未圖示的金屬端子，便可減少真空開關管之連接部 處的電場強度。 此種緩和電場強度的外部中間屏蔽1 4，係可將具有由 平滑曲面所構成之外表面的圓筒分割為約一半的半筒 14a、 14b。在半筒14a、 14b之内周面沿著圓周方向設置有 凸狀的環狀部1 4 c，並使此環狀部1 4 c的最内周面1 4 d緊密 地抵接於中間圓筒1之外側面1 d。在半筒1 4 a的分割面1 4 e 單側上切割出母螺絲1 4 f，而在分割面1 4 e的另一側上設置 著從半筒1 4 a之外周貫穿至分割面1 4 e的螺絲孔1 4 g。此 外，在半圓筒1 4 b上，於對應切入於半筒1 4 a之母螺絲1 4 f 的位置處，設置有從半圓筒1 4b之外周貫穿至分割面1 4e的-314294.ptd Page 12 200301910 V. Description of the invention (4) Degree, the middle cylinder 1 of the metal cylinder and the arc shield 2, 3, the arc shield 2, 3 and the metal cylinder 4, 5 and the metal cylinder Between 4, 5 and the insulation cylinders 7, 8 and between the insulation cylinders 7, 8 and the end plates 9, 10 are respectively sealed by welding to form a vacuum container 14. In addition, airtightness is also performed by welding between the end plate 9 and the fixed contact member 11, between the end plate 10 and the expansion bag 12, and between the expansion bag 12 and the fixed portion of the movable contact member 13. seal. The outer intermediate shield 1 4 of the vacuum switch tube is arranged on the outside of the vacuum container 1 5, and covers the outer surfaces of the connecting portions 6 a and 6 b of the metal cylinders 4 and 5 and the insulating cylinders 7 and 8 and covers the metal cylinders. The method of setting 4 and 5 to be equipotential has the effect of alleviating the obvious increase of the electric field intensity generated at the connecting portions 6 a and 6 b. In addition, in the vacuum switching tube, the connection portions between the end plates 9, 10 and the insulation cylinders 7, 8 are covered by metal terminals (not shown), and the electric field of these connection portions is relaxed, so that the electric field intensity becomes relatively small. . In this way, the external intermediate shield 14 and the metal terminal (not shown) can reduce the electric field strength at the connection portion of the vacuum switching tube. Such an external intermediate shield 14 for reducing the electric field strength can divide a cylinder having an outer surface composed of a smooth curved surface into approximately half halves 14a, 14b. A convex annular portion 1 4 c is provided on the inner peripheral surface of the half cylinders 14 a and 14 b along the circumferential direction, and the innermost peripheral surface 1 4 d of the annular portion 1 4 c closely contacts the intermediate circle. The outer side of the cylinder 1 is 1 d. A female screw 1 4 f is cut on one side of the split surface 1 4 e of the half cylinder 1 4 a, and the other side of the split surface 1 4 e is provided to penetrate from the outer periphery of the half tube 1 4 a to the split surface 1 4 e screw holes 1 4 g. In addition, at the position corresponding to the female screw 1 4 f cut into the half cylinder 1 4 a on the half cylinder 1 4 b, there is provided a penetrating portion from the outer periphery of the half cylinder 14 b to the dividing surface 1 4e.
314294.ptd 第13頁 200301910 五、發明說明（5) 螺絲孔1 4 g。同樣地，母螺絲將切入於半筒1 4 b内。另外， 環狀部1 4c的兩側端面1 4h將在與從電弧屏蔽2、3之固定部 2a、3a延伸至中間圓筒1之外側面lb的端部2b、3b之間， 利，用些微間隙相嵌合。外部中間屏蔽1 4之兩端部1 4 j則與 絕緣筒7、8隔著些微間隙而相對向。如此，外部中間屏蔽 1 4便利用環狀部1 3 c而機械式支撐於中間圓筒1上，因為隨 接點開關時所產生的振動會抵接於較寬廣的最内周部處， 因此不致引起鬆緩等現象。 外部中間屏蔽1 4係由金屬塊進行切削加工而製成。即 接點開關時所產生振動而受到中間圓筒等乏影響，半 筒1 4a、1 4b的板厚亦不致成為易於產生變形等現象的厚 度。外部中間屏蔽1 4因為電性連接於中間圓筒1上，因此 與中間圓筒1形成等電位狀態。 _ 再者，為使嵌合於螺絲孔1 4 g之由螺絲所構成之固定 構件1 5的螺絲頭1 5 a，不致從半筒1 4 b之外周面突出，而將 具有可收容螺絲頭1 5 a之直徑的孔1 4 i連通於螺絲孔1 4 g。 若測量此種構造之真空開關管周圍的電場強度的話， 當未設置外部中間屏蔽時，將顯示出最大的電場強度，就 連絕緣筒7、8與金屬筒4、5間的連接部6 a、6 b周圍亦未發 大的電場強度。利用將外部中間屏蔽1 4之電位設定為 與中間圓筒1電位相同，便可使由外部中間屏蔽1 4所覆蓋 ^之空間的電場強度大致為零。 再者，將真空開關管在六氟化硫黃氣體中反覆進行開 4關操作，且亦對外部中間屏蔽施加振動，在此情況下進行314294.ptd Page 13 200301910 V. Description of the invention (5) Screw holes 1 4 g. Similarly, the female screw will be cut into the half cylinder 1 4 b. In addition, the end surfaces 14h on both sides of the annular portion 14c will be between the end portions 2b, 3b extending from the fixed portions 2a, 3a of the arc shields 2 and 3 to the outer side surface 1b of the intermediate cylinder 1. The slight gaps fit together. The two end portions 1 4 j of the outer intermediate shield 14 are opposed to the insulation cylinders 7 and 8 with a slight gap therebetween. In this way, the outer intermediate shield 1 4 is conveniently supported by the intermediate cylinder 1 with the ring portion 1 3 c, because the vibration generated when the contact switch is in contact with the wider innermost peripheral portion, so Does not cause loosening and other phenomena. The outer intermediate shield 1 4 is made by cutting a metal block. That is, the vibration generated during the contact switch is not affected by the middle cylinder and the like, and the plate thicknesses of the half cylinders 14a and 14b do not become a thickness that is prone to deformation and the like. Since the outer intermediate shield 14 is electrically connected to the intermediate cylinder 1, it forms an equipotential state with the intermediate cylinder 1. _ In addition, in order to prevent the screw head 15 a of the fixing member 15 composed of screws fitting into the screw hole 14 g from protruding from the outer peripheral surface of the half cylinder 14 b, a screw head can be accommodated. A hole 1 4 i with a diameter of 1 5 a communicates with a screw hole 14 g. If the electric field strength around the vacuum switch tube of this structure is measured, the maximum electric field strength will be displayed when no external intermediate shield is provided, even the connection portion 6 a between the insulation cylinders 7 and 8 and the metal cylinders 4 and 5 There is no large electric field strength around 6b. By setting the potential of the outer intermediate shield 14 to be the same as that of the intermediate cylinder 1, the electric field strength of the space covered by the outer intermediate shield 14 can be made substantially zero. Furthermore, the vacuum switch tube is repeatedly turned on and off in sulfur hexafluoride gas, and vibration is also applied to the external intermediate shield. In this case,
-314294.ptd 第14頁 200301910 五、發明說明（6) 測試，但是，並未發現固定構件1 5產生鬆緩現象，亦未發 現可認定為是螺絲頭1 5 a所造成的飛弧現象。 如此，本發明實施形態1的真空開關管，在真空開關 管的設置狀態之下，與周圍構造物之間並未發現較大的電 場強度。 特別是因為外周面係由圓筒面所構成，因此並無尖銳 部分，乃屬於具有平順電場強度的真空開關管。 再者，即便反覆進行開關操作，外部中間屏蔽的鎖固 亦無鬆脫現象發生，而且並未在途中發生較大之電場強 度。 再者，因為固定構件1 5之螺絲頭1 5 a係位於比外部中 間屏蔽1 4之外表面更内側的位置處，因此即便產生鬆緩現 像，螺絲頭1 5 a亦不致突出於外表面，且不致使電場強度 變大。 再者，因為外部中間屏蔽1 4乃藉由將半筒1 4a、 1 4b予 以組裝而成，因此即便在現場亦可輕易地執行組裝及補修 等事宜。 再者，因為環狀部1 4 c的最内周面1 4 d係以較廣之面積 而鎖固於中間圓筒1上，因此不致隨振動而使外部中間屏 蔽1 4與中間圓筒1間的連接產生鬆緩之現象。 實施形態2 第3圖係本發明實施形態2之真空開關管之剖視圖。不 同於第1圖所示之真空開關管之點在於外部中間屏蔽。 外部中間屏蔽1 6係用以覆蓋金屬筒4、5與絕緣筒7、8-314294.ptd Page 14 200301910 V. Description of the invention (6) Testing, however, no looseness was found in the fixing member 15 and no flashover phenomenon that could be considered to be caused by the screw head 15a. As described above, in the vacuum switching tube according to the first embodiment of the present invention, no large electric field strength was found between the vacuum switching tube and surrounding structures in the state in which the vacuum switching tube was installed. In particular, because the outer peripheral surface is formed of a cylindrical surface, there is no sharp part, and it belongs to a vacuum switch tube with smooth electric field strength. Furthermore, even if the switching operation is repeated, the locking of the external intermediate shield does not loosen, and no large electric field strength occurs on the way. Furthermore, since the screw head 15 a of the fixing member 15 is located more inward than the outer surface of the outer intermediate shield 14, the screw head 15 a does not protrude from the outer surface even if a loose appearance occurs. And does not cause the electric field strength to increase. In addition, because the outer intermediate shield 14 is assembled by assembling the half cylinders 14a and 14b, it is possible to easily perform assembly and repair work even on site. Furthermore, since the innermost peripheral surface 1 4 d of the annular portion 1 4 c is locked to the intermediate cylinder 1 with a wide area, the external intermediate shield 14 and the intermediate cylinder 1 are not caused by vibration. The connection between them is loose. Embodiment 2 FIG. 3 is a cross-sectional view of a vacuum switch tube according to Embodiment 2 of the present invention. The difference from the vacuum switch shown in Figure 1 lies in the external intermediate shield. External intermediate shields 1 and 6 are used to cover metal cylinders 4, 5 and insulating cylinders 7, 8
314294.ptd 第15頁 200301910 五、發明說明（7) 間之連接部6 a、6 b之外側，且在長度方向兩端部處内徑較 小。固定管1 7a、1 7b係從外部中間屏蔽1 6之外側面橫跨絕 緣’筒7、8之外側面而安裝的絕緣管，利用熱收縮性而固接 於并側面。 因為此種真空開關管乃利用較薄的固定管1 7a、 1 7b而 將外部中間屏蔽1 6與絕緣筒7、8之外側面予以固定，因此 β並無發現突起物，且在與周圍構造物之間亦未發現較大的 電場強度。 " 再者，即便反覆進行開關操作，外部中間屏蔽的鎖固 鬆脫現象發生，而且並未在途中發生較大電場強度。 再者，切斷固定管之後，利用加熱便可輕易地進行加 工 〇 實施形態3 . 第4圖係本發明實施形態3之真空開關管之剖視圖。不 同於第1圖所示之真空開關管之點在於外部中間屏蔽。 外部中間屏蔽1 8係用以覆蓋金屬筒4、5與絕緣筒7、8 間的連接部6 a、6 b之外側，且在長度方向兩端部處内徑較 小。此外，外部中間屏蔽1 8中，内側面1 8b係抵接於由電 弧屏蔽2朝外延伸至真空容器外部的外延部2 b上。 鲁外部中間屏蔽1 8係在將圓筒狀管以同軸狀套合於真空 容器外側之後，再利用圓盤狀之歛合模從圓筒狀管之外側 起使内徑歛縮，並歛縮至圓筒狀管的内面抵接於電弧屏蔽 2之外延部2 b為止。 ' 因為此種真空開關管乃外部中間屏蔽1 8部分被歛縮，314294.ptd Page 15 200301910 V. Description of the invention (7) Outside the connecting parts 6 a and 6 b, and the inner diameter is smaller at both ends in the longitudinal direction. The fixed pipes 17a and 17b are insulating pipes which are installed across the outer side of the insulators' cylinders 7 and 8 from the outer side of the outer intermediate shield 16 and are fixed to the side by using heat shrinkability. Because this type of vacuum switch tube uses thinner fixed tubes 1 7a and 1 7b to fix the outer intermediate shield 16 and the outer sides of the insulation cylinders 7 and 8, no protrusions are found in β, and the structure is close to the surroundings. No large electric field strength was found between objects. " Furthermore, even if the switching operation is repeatedly performed, the loosening of the external intermediate shield lock occurs, and a large electric field strength does not occur on the way. In addition, after the fixed tube is cut, processing can be easily performed by heating. Embodiment 3 Fig. 4 is a sectional view of a vacuum switching tube according to Embodiment 3 of the present invention. The difference from the vacuum switch shown in Figure 1 lies in the external intermediate shield. The external intermediate shield 18 is used to cover the outer sides of the connecting portions 6 a and 6 b between the metal cylinders 4 and 5 and the insulating cylinders 7 and 8 and has a smaller inner diameter at both ends in the longitudinal direction. In addition, in the outer intermediate shield 18, the inner side surface 18b abuts on the epitaxial portion 2b extending outward from the arc shield 2 to the outside of the vacuum container. Lu's external intermediate shield 18 is a cylindrical tube that is coaxially fitted on the outside of the vacuum container, and then a disk-shaped convergence mold is used to shrink the inner diameter from the outside of the cylindrical tube and condense. Until the inner surface of the cylindrical tube abuts on the arc shield 2 outer extension 2 b. 'Because this type of vacuum switch tube is partially shielded by the external middle shield,
*314294.ptd 第16頁 200301910 五、發明說明（8) 因此並無發現突起物，且在與周圍構造物之間亦未發現較 大的電場強度。 再者，即便反覆進行開關操作，外部中間屏蔽的鎖固 亦無鬆脫現象發生，而且並未在途中發生較大電場強度。 再者，因為在將圓筒管覆蓋於真空容器之外側之後， 僅要利用歛縮模具進行歛縮便可固定，因此可輕易地進行 力口工0 再者，並不僅限於加熱而欽縮的熱嵌配合或冷作敛合 等歛縮方法。 再者，歛縮的部分在考慮固定強度之情況下，亦可設 置複數個。 實施形態4 第5圖係本發明實施形態4之真空開關管之剖視圖。不 同於第3圖所示之真空開關管之點在於外部中間屏蔽之固 定方法。 外部中間屏蔽1 9係用以覆蓋金屬筒4、5與絕緣筒7、8 間之連接部6 a、6 b之外側，且在長度方向二端部處内徑較 小。在電弧屏蔽2、3之外延部2 b、3 b與外部中間屏蔽1 9之 内面1 9 a之間，利用黏接劑而設置有黏接層2 0 a、2 0 b，並 相互黏接在一起。 因為此種真空開關管乃在外部中間屏蔽1 9之外側面上 並無發現突起物，因此在與周圍構造物之間並未發現較大 的電場強度。 再者，即便反覆進行開關操作，外部中間屏蔽的鎖固* 314294.ptd Page 16 200301910 V. Description of the invention (8) Therefore, no protrusion was found, and no large electric field strength was found between it and the surrounding structure. In addition, even if the switching operation is repeated, the locking of the external intermediate shield does not loosen, and no large electric field strength occurs on the way. Moreover, after the cylindrical tube is covered on the outside of the vacuum container, it can be fixed only by shrinking with a shrinking mold, so it can be easily performed. Furthermore, it is not limited to heating and shrinking. Condensation methods such as hot fit or cold work convergence. Furthermore, a plurality of constricted portions may be provided in consideration of a fixed strength. Embodiment 4 FIG. 5 is a cross-sectional view of a vacuum switch tube according to Embodiment 4 of the present invention. The difference from the vacuum switch shown in Figure 3 is the fixing method of the external intermediate shield. The external intermediate shield 19 is used to cover the outer sides of the connecting portions 6 a and 6 b between the metal cylinders 4 and 5 and the insulating cylinders 7 and 8, and the inner diameter is smaller at the two ends in the length direction. Adhesive layers 2 0 a and 2 0 b are provided between the arc shields 2 and 3 epitaxial portions 2 b and 3 b and the inner surface 1 9 a of the outer intermediate shield 1 9 by using an adhesive, and are adhered to each other. Together. Because this type of vacuum switch tube has no protrusions on the outer side of the external intermediate shield 19, no large electric field strength is found between it and surrounding structures. Furthermore, even if the switching operation is repeated, the external intermediate shield is locked.
314294.ptd 第17頁 200301910 五、發明說明（9) 亦無鬆脫現象發生，而且並未在途中發生較大電場強度。 , 再者，在外部中間屏蔽1 9之内面1 9 a上形成黏接層 2 0 a、2 0 b之後，僅需施行加熱處理即可輕易地將外部中間 屏·蔽予以固定。 實施形態5 第6圖係本發明實施形態5之真空開關管之剖視圖。第 7圖係第6圖所示之外部中間屏蔽的分解立體圖。不同於第 1圖所示之真空開關管之點在於外部中間屏蔽的固定方 法。 • 外部中間屏蔽2 1係具備有：内面2 1 a之其中一部份朝内 侧突出的段周部2 1 b ;段周部2 1 b内面上的螺絲部2 1 c、以 及將螺絲部2 1 c朝向内側壓接的螺絲孔2 1 d。在電弧屏蔽2 之外延部2 b上，設置有在外側面上所設置的螺絲部。該等 螺絲部乃設計成朝真空容器之長度方向螺合的狀態。 外部中間屏蔽2 1係從真空容器的其中一邊插入，然後 將螺絲部2 1螺合於弧形屏蔽2的螺絲部2 c，而固定於真空 容器上。然後，將螺絲2 2螺合於螺絲孔2 1 d中，並將螺絲 部2 1 c朝螺絲部2 c壓接而補強強度。 因為此種真空開關管乃在外部中間屏蔽2 1之外侧面上 發現突起物，因此在與周圍構造物之間並未發現較大 的電場強度。 i 再者，因為外部中間屏蔽2 1乃螺合於電弧屏蔽2之螺 絲部2 c，因此可確實地連結，使外部中間屏蔽2 1不致鬆動 迴轉。314294.ptd Page 17 200301910 V. Description of the invention (9) No loosening occurred, and no large electric field strength occurred on the way. Furthermore, after forming the adhesive layers 20 a and 20 b on the inner surface 19 a of the outer intermediate shield 19, the outer intermediate screen and the shield can be easily fixed only by applying heat treatment. Embodiment 5 FIG. 6 is a sectional view of a vacuum switch tube according to Embodiment 5 of the present invention. Figure 7 is an exploded perspective view of the external intermediate shield shown in Figure 6. The difference from the vacuum switch shown in Figure 1 lies in the method of fixing the external intermediate shield. • The outer intermediate shield 2 1 is provided with a section peripheral portion 2 1 b in which a part of the inner surface 2 1 a protrudes inward, a segment peripheral portion 2 1 b, and a screw portion 2 1 c on the inner surface, and a screw portion 2 1 c Screw holes crimped toward the inside 2 1 d. The arc shield 2 epitaxial portion 2 b is provided with a screw portion provided on the outer surface. These screw portions are designed to be screwed in the length direction of the vacuum container. The outer intermediate shield 2 1 is inserted from one side of the vacuum container, and the screw portion 21 is screwed to the screw portion 2 c of the arc shield 2 to be fixed to the vacuum container. Then, screw the screw 2 2 into the screw hole 2 1 d, and crimp the screw portion 2 1 c toward the screw portion 2 c to reinforce the strength. Because this vacuum switch tube has protrusions on the outer side of the outer intermediate shield 21, no large electric field strength is found between it and surrounding structures. i Furthermore, since the outer intermediate shield 2 1 is screwed to the screw portion 2 c of the arc shield 2, it can be reliably connected so that the outer intermediate shield 2 1 does not loosen and rotate.
*314294.ptd 第18頁 200301910 五、發明說明GO) 實施形態6 第8圖係本發明實施形態5之真空開關管之剖視圖。不 同於第1圖所示之真空開關管之點在於外部中間屏蔽的形 狀及其固定方法。 外部中間屏蔽2 3 a、2 3 b係具半圓剖面形狀的環，並覆 蓋金屬筒4、5與絕緣筒7、8間之連接部6 a、6 b之外側。 外部中間屏蔽2 3 a、2 3 b係分別利用焊接方式而安裝於 各電弧屏蔽2、3的外延部2 b、3 b之外側。 因為此種真空開關管乃在外部中間屏蔽1 9外側面上並 無發現突起物，因此在與周圍構造物之間並未發現較大的 電場強度。 再者，因為外部中間屏蔽2 3 a、2 3 b乃與電弧屏蔽2、3 之外延部2 b、3 b進行焊接，因此可確實地連結，使外部中 間屏蔽2 3 a、2 3 b不致鬆動旋轉。 實施形態7 第9圖係本發明實施形態7之真空開關管之剖視圖。第 1 0圖係第9圖所示之外部中間屏蔽的分解立體圖。不同於 第1圖所示之真空開關管之點在於外部中間屏蔽的固定方 法。 外部中間屏蔽2 4係設置有：將部分内徑縮小的歛縮部 2 4a、以及歛縮部24a上所設置的孔24b。此外，電弧屏蔽2 係在電弧屏蔽2之外延部2 b上，於對應外部中間屏蔽2 4之 孔2 4 b的位置處，設置有螺絲孔2 d。 外部中間屏蔽2 4係以穿過孔2 4 b並螺合於電弧屏蔽2上* 314294.ptd Page 18 200301910 V. Description of the invention GO) Embodiment 6 Fig. 8 is a sectional view of a vacuum switch tube according to Embodiment 5 of the present invention. The difference from the vacuum switch tube shown in Figure 1 lies in the shape of the external intermediate shield and its fixing method. The outer intermediate shields 2 3 a and 2 3 b are rings having a semicircular cross-sectional shape and cover the outer sides of the connecting portions 6 a and 6 b between the metal cylinders 4 and 5 and the insulating cylinders 7 and 8. The external intermediate shields 2 3 a and 2 3 b are respectively mounted on the outer sides of the extension portions 2 b and 3 b of the arc shields 2 and 3 by welding. Because this vacuum switch tube has no protrusions on the outside surface of the external intermediate shield 19, no large electric field strength is found between it and surrounding structures. Furthermore, since the outer intermediate shields 2 3 a and 2 3 b are welded to the arc shields 2 and 3 and the extensions 2 b and 3 b, the outer intermediate shields 2 3 a and 2 3 b cannot be reliably connected. Loose rotation. Embodiment 7 Fig. 9 is a sectional view of a vacuum switch tube according to Embodiment 7 of the present invention. Figure 10 is an exploded perspective view of the external intermediate shield shown in Figure 9. The difference from the vacuum switch shown in Figure 1 lies in the method of fixing the external intermediate shield. The outer intermediate shield 24 is provided with a condensed portion 24a that reduces a part of the inner diameter, and a hole 24b provided in the condensed portion 24a. In addition, the arc shield 2 is provided on the extension 2 b of the arc shield 2, and a screw hole 2 d is provided at a position corresponding to the hole 2 4 b of the outer intermediate shield 2 4. The outer middle shield 2 4 is passed through the hole 2 4 b and screwed onto the arc shield 2
314294.ptd 第19頁 200301910 五、發明說明（11) 的螺絲孔2d的螺栓25而固定於電弧屏蔽2上。 此種真空開關管中，因為螺栓2 5係插入於外部中間屏 蔽’ 2 4的歛縮部2 4 a，而螺栓2 5之頭部不會突出於比外部中 間·屏蔽2 4之外側面更外側處，因此在與周圍的構造物之間 並未發現較大的電場強度。 再者，外部中間屏蔽24乃因為利用螺栓25而確實地連 1結於電弧屏蔽2上，因此外部中間屏蔽24不致轉動。 實施形態8 ^ 第1 1圖係本發明實施形態8之真空開關管的外部中間 肩Ipi之分解立體圖。不同於第9圖所示之真空開關管之點 在於：因為將外部中間屏蔽朝半徑方向進行分割，因此即 便真空開關管的外徑尺寸不同於絕緣管與中間圓筒，仍可 使外觀形狀上吻合於外部中間屏蔽，可防止外部中間屏蔽 的大型化。 實施形態9 第1 2圖係本發明實施形態9之真空開關管剖視圖。不 同於第9圖所示之真空開關管之點在於外部中間屏蔽的固 定方法。 在電弧屏蔽2、3之外延部2 a、3 a之外側面上，固定有 痛個屏蔽按壓具26a、26b。 外部中間屏蔽2 4係將按壓螺栓2 7螺合於螺絲孔2 4 b -中，並使按壓螺栓2 7之前端部壓接於屏蔽按壓具2 6 a、2 6 b 之外側面而固定。 ’ 此種真空開關管乃因為屏蔽按壓具2 6 a、2 6 b之内側面314294.ptd Page 19 200301910 V. Description of the invention (11) The bolt 25 of the screw hole 2d is fixed to the arc shield 2. In this type of vacuum switch tube, because the bolts 2 5 are inserted into the converging portion 2 4 a of the external intermediate shield '2 4, the head of the bolts 2 5 does not protrude more than the outer side of the external intermediate shield 2 4. At the outer side, no large electric field strength was found between it and surrounding structures. Furthermore, the outer intermediate shield 24 is securely connected to the arc shield 2 by the bolt 25, so that the outer intermediate shield 24 does not rotate. Embodiment 8 ^ Fig. 11 is an exploded perspective view of the outer middle shoulder Ipi of the vacuum switch tube according to Embodiment 8 of the present invention. The difference from the vacuum switch tube shown in Figure 9 is that the outer intermediate shield is divided in a radial direction, so even if the outer diameter of the vacuum switch tube is different from the insulation tube and the intermediate cylinder, the appearance and shape can still be improved. Matching the external intermediate shield can prevent the external intermediate shield from increasing in size. Embodiment 9 Figures 12 and 12 are sectional views of a vacuum switch tube according to Embodiment 9 of the present invention. The difference from the vacuum switch shown in Figure 9 lies in the fixing method of the external intermediate shield. A shield pressing tool 26a, 26b is fixed to the outer side surfaces of the arc shields 2, 3 and the extensions 2a, 3a. The outer middle shield 2 4 is screwed into the screw hole 2 4 b-with the pressing bolt 2 7, and the front end of the pressing bolt 2 7 is crimped to the outer side of the shield pressing tool 2 6 a, 2 6 b and fixed. ’This kind of vacuum switch tube is because the inner side of the shield pressing tool 2 6 a, 2 6 b
-314294.ptd 第20頁 200301910 五、發明說明（12) 與電弧屏蔽2、3之外延部2 b、3 b以面狀方式進行接觸，因 此透過按壓螺栓2 7可抑制外部中間屏蔽2 4的移動。 實施形態 1 0 第1 3圖係本發明實施形態1 0之真空開關管之剖視圖。 不同於第1圖所示之真空開關管之點在於外部中間屏蔽。 外部中間屏蔽2 8係具備有：覆蓋金屬筒4、5與絕緣筒 7、8間之連接部6 a、6 b之外側，並鑿取三個母螺絲2 9 a的 圓筒2 9 ;螺合於母螺絲2 9 a中，且前端設有支撐構件3 0的 固定螺栓3 1 ;以及安裝於固定螺栓3 1之螺栓頭3 1 a上的螺 拴屏蔽3 2。 圓筒2 9係由金屬塊進行切削加工而製成。在支樓構件 3 0之單側面上，設置有用以嵌合固定螺栓3 1之前端的螺絲 孔，而在另一面上則以密接於中間圓筒1之外周面1 a的方 式，加工成具有與中間圓筒1之外周面1 a相同直徑的曲 面〇 圓筒2 9係藉由支撐構件3 0抵接在中間圓筒1之外周面 1 a，且利用三根固定螺栓3 1從3方向進行鎖固而支撐於中 間圓筒1上。 螺栓屏蔽3 2係具有半球狀之外表面，並在内側上設置 有緊密嵌合於螺栓頭3 1 a上的凹部。藉由將半球狀的螺栓 屏蔽3 2覆蓋於固定螺栓3 1之螺栓頭3 1 a，便可防止尖銳的 螺栓頭3 1 a與周圍構件之間的電場強度變大的現象發生。 若測量此種構造之真空開關管周圍的電場強度的話， 當未設置外部中間屏蔽時，將顯示出最大的電場強度，就-314294.ptd Page 20 200301910 V. Description of the invention (12) Contact with the arc shields 2 and 3 and the extensions 2 b and 3 b in a planar manner, so the external intermediate shield 2 4 can be suppressed by pressing the bolt 2 7 mobile. Embodiment 10 FIG. 13 is a cross-sectional view of a vacuum switch tube according to Embodiment 10 of the present invention. The difference from the vacuum switch shown in Figure 1 lies in the external intermediate shield. The external intermediate shield 2 8 is provided with a cylinder 2 9 that covers the outer sides of the connection portions 6 a and 6 b between the metal cylinders 4 and 5 and the insulation cylinders 7 and 8 and cuts out three female screws 2 9 a; The fixing screw 3 1 is fitted in the female screw 2 9 a, and the front end is provided with a supporting member 30; and the bolt shield 32 is installed on the bolt head 3 1 a of the fixing bolt 31. The cylinders 29 and 9 are made by cutting a metal block. On one side of the branch member 30, a screw hole for fitting the front end of the fixing bolt 3 1 is provided, and on the other side, it is processed to closely contact the outer peripheral surface 1 a of the intermediate cylinder 1 with The outer diameter of the outer cylinder 1 of the intermediate cylinder 1 is a curved surface of the same diameter. The cylinder 2 9 is abutted against the outer periphery 1 a of the intermediate cylinder 1 by the supporting member 30, and is locked from three directions by three fixing bolts 31. It is supported on the intermediate cylinder 1. The bolt shield 3 2 has a hemispherical outer surface, and a recessed portion fitted tightly on the bolt head 3 1 a is provided on the inner side. By covering the bolt head 3 1 a of the fixed bolt 3 1 with the hemispherical bolt shield 3 2, it is possible to prevent the phenomenon that the electric field strength between the sharp bolt head 3 1 a and the surrounding member increases. If the electric field strength around the vacuum switch tube of this structure is measured, when the external intermediate shield is not provided, the maximum electric field strength will be displayed.
314294.ptd 第21頁 200301910 五、發明說明（13) /連絕緣筒與金屬筒間的連接部周圍亦未發現較大的電場強 度。利用將外部中間屏蔽之電位設定為與中間圓筒之電位 相、，便可使由外部中間屏蔽所覆蓋之空間的電場強度大 致·為零。 再者，將真空開關管在六氟化硫黃氣體中反覆進行開 關操作，且亦對外部中間屏蔽施加振動，在此情況下進行 .測試，但是，並未發現固定構件產生鬆緩現象，亦未發現 可認定為由螺絲頭所造成的飛弧現象。 * 此種真空開關管係在真空開關管的設置狀態下，於與 構造物之間並未發現較大的電場強度。 再者，即便反覆進行開關操作，外部中間屏蔽的鎖固 亦無鬆脫現象發生，而且並未在途中發生較大之電場強 度。 _ 再者，因為僅需採用如圓筒之類的簡單構造之構件即 可，因此可降低成本。 實施形態1 1 第1 4圖係本發明實施形態1 1之真空開關管之剖視圖。 第1 5圖係第1 4圖所示之外部中間屏蔽的分解立體圖。不同 於第1 3圖所示之真空開關管之點在於支撐構件。 籲支撐構件3 3係具備有·.在中間圓筒1之外側面1 a上，利 用堆焊而朝半徑方向突出，並朝半徑方向形成非貫穿狀之 -母螺絲3 4 a的凸緣3 4。凸緣3 4係設置在相對於通常三相份 並排設置之真空開關管之並排方向偏離9 0°的方向上。 " 外部中間屏蔽2 9係螺合於外部中間屏蔽2 9之母螺絲部314294.ptd Page 21 200301910 V. Description of the invention (13) / A large electric field strength was not found around the connection between the insulation tube and the metal tube. By setting the potential of the external intermediate shield to the potential of the intermediate cylinder, the electric field strength of the space covered by the external intermediate shield can be made approximately zero. In addition, the vacuum switching tube was repeatedly turned on and off in sulfur hexafluoride gas, and vibration was also applied to the external intermediate shield. In this case, the test was performed. However, no looseness was found in the fixed member. No flashover was found to be caused by the screw head. * Under the state of installation of the vacuum switch tube, this type of vacuum switch tube does not find a large electric field strength with the structure. Furthermore, even if the switching operation is repeated, the locking of the external intermediate shield does not loosen, and no large electric field strength occurs on the way. _ Furthermore, because only a simple structure such as a cylinder is required, the cost can be reduced. Embodiment 1 1 FIG. 14 is a sectional view of a vacuum switch tube according to Embodiment 11 of the present invention. Figure 15 is an exploded perspective view of the external intermediate shield shown in Figure 14. The difference from the vacuum switching tube shown in Fig. 13 lies in the supporting member. The support member 3 3 is provided with a flange 3 that protrudes in a radial direction on the outer side surface 1 a of the intermediate cylinder 1 by overlay welding, and forms a non-penetrating nut 3 4 a in the radial direction. 4. The flanges 3 and 4 are arranged in a direction offset from 90 ° with respect to the side-by-side direction of the vacuum switch tubes which are usually arranged side by side in a three-phase portion. " External intermediate shield 2 9 is screwed to the female screw part of external intermediate shield 2 9
• 314294.ptd 第22頁 200301910 五、發明說明（14) 2 9 a，且前端部螺合於凸緣3 4的母螺絲部2 9 a中，而固定於 中間圓筒1上。 此類真空開關管乃利用焊接方式而形成凸緣，並在該 凸緣上設置母螺絲，藉此可輕易地形成支撐部位。 實施形態1 2 第1 6圖係本發明實施形態1 2之真空開關管之剖視圖。 第1 7圖係第1 6圖所示之外部中間屏蔽的分解立體圖。不同 於第1 3圖所示之真空開關管之點在於支撐構件。 支撐構件3 5係具備有·.焊接於中間圓筒1之外側面1 a上 的環3 6 ;以及設置於環3 6中央處的母螺絲3 6 a。環3 6係設 置在相對於通常三相份並排設置之真空開關管之並排方向 偏離90°的方向上。 外部中間屏蔽2 9係螺合於外部中間屏蔽2 9之母螺絲部 2 9 a，且前端部螺合於環3 6的母螺絲部3 6 a中，而固定於中 間圓筒1上。 此類真空開關管乃利用焊接方式而將環固定於中間圓 筒上，並在該環中設置母螺絲，藉此可輕易地形成支撐部 位。 如上所述，本發明之真空開關管的效果係在於：在具 備設有絕緣筒與金屬筒且氣密密封之真空容器的真空開關 管中，由於具備有：用以覆蓋位於絕緣筒與金屬筒之真空 容器長度方向中間位置處的連接部之外表面且具有平滑曲 面的外表面，且具備有：缓和連接部周圍之電場強度的外 部中間屏蔽，因此可在真空開關管之設置狀態下，於與周• 314294.ptd Page 22 200301910 V. Description of the invention (14) 2 9 a, and the front end portion is screwed into the female screw portion 2 9 a of the flange 34, and is fixed on the intermediate cylinder 1. This type of vacuum switch tube is welded to form a flange, and a female screw is provided on the flange, so that a support portion can be easily formed. Embodiment 1 2 FIG. 16 is a sectional view of a vacuum switch tube according to Embodiment 12 of the present invention. Figure 17 is an exploded perspective view of the external intermediate shield shown in Figure 16. The difference from the vacuum switching tube shown in Fig. 13 lies in the supporting member. The support member 3 5 is provided with a ring 3 6 welded to the outer side surface 1 a of the intermediate cylinder 1, and a female screw 3 6 a provided at the center of the ring 36. The ring 36 is arranged in a direction which is offset from the side by side by 90 ° with respect to the vacuum switch tubes which are usually arranged side by side. The external intermediate shield 2 9 is screwed to the female screw portion 2 9 a of the external intermediate shield 2 9, and the front end portion is screwed into the female screw portion 3 6 a of the ring 36 and fixed to the intermediate cylinder 1. This type of vacuum switch tube uses welding to fix the ring on the middle cylinder, and sets a female screw in the ring, so that the support portion can be easily formed. As described above, the effect of the vacuum switching tube of the present invention is that the vacuum switching tube provided with a vacuum container provided with an insulating tube and a metal tube and hermetically sealed is provided with: The outer surface of the connection part at the middle position in the length direction of the vacuum container has a smooth curved surface and has an external intermediate shield that reduces the electric field strength around the connection part. Therefore, in the state of the vacuum switch tube, it can be used in With week
314294.ptd 第23頁 200301910 五、發明說明（15) 圍構造物之間不致出現較大的電場強度。 . 再者，因為外周面係由圓筒面所構成，因此可提供一 種_無尖銳部分，而具平順電場強度的真空開關管。 •再者，即便反覆進行開關操作，外部中間屏蔽的鎖固 亦無鬆脫現象發生，而且亦不會在途中發生較大之電場強 度0314294.ptd Page 23 200301910 V. Description of the invention (15) No large electric field strength will appear between the surrounding structures. In addition, because the outer peripheral surface is composed of a cylindrical surface, a vacuum switch tube with a smooth electric field strength without sharp parts can be provided. • Furthermore, even if the switching operation is repeated, the locking of the external intermediate shield does not loosen, and no large electric field strength occurs on the way.
314294.ptd 第24頁 200301910 圖式簡單說明 【圖式簡单說明】 第1圖係本發明實施形態1之真空開關管之剖視圖。 第2圖係第1圖所示之外部中間屏蔽的分解立體圖。 第3圖係本發明實施形態2之真空開關管之剖視圖。 第4圖係本發明實施形態3之真空開關管之剖視圖。 第5圖係本發明實施形態4之真空開關管之剖視圖。 第6圖係本發明實施形態5之真空開關管之剖視圖。 第7圖係第6圖所示之外部中間屏蔽的分解立體圖。 第8圖係本發明實施形態6之真空開關管之剖視圖。 第9圖係本發明實施形態7之真空開關管之剖視圖。 第1 0圖係第9圖所示之外部中間屏蔽的分解立體圖。 第1 1圖係本發明實施形態8之真空開關管的外部中間 屏蔽的分解立體圖。 第1 2圖係本發明實施形態9之真空開關管之剖視圖。 第1 3圖係本發明實施形態1 0之真空開關管之剖視圖。 第1 5圖係第1 4圖所示之外部中間屏蔽的分解立體圖。 第1 6圖係本發明實施形態1 2之真空開關管之剖視圖。 第1 7圖係第1 6圖所示之外部中間屏蔽的分解立體圖。 1 中間圓筒 la、 lb (中間圓筒之）兩端面 1 d 外側面 2、3 電弧屏蔽 2a、3a (電弧屏蔽之）固定部 2 b、3 b 外延部 2 c、2 1 c螺絲部 2 d、2 1 d螺絲孔 4、5 金屬筒314294.ptd Page 24 200301910 Brief Description of Drawings [Simplified Description of Drawings] Figure 1 is a sectional view of a vacuum switch tube according to the first embodiment of the present invention. Figure 2 is an exploded perspective view of the external intermediate shield shown in Figure 1. Fig. 3 is a sectional view of a vacuum switching tube according to a second embodiment of the present invention. Fig. 4 is a sectional view of a vacuum switching tube according to a third embodiment of the present invention. Fig. 5 is a sectional view of a vacuum switching tube according to a fourth embodiment of the present invention. Fig. 6 is a sectional view of a vacuum switching tube according to a fifth embodiment of the present invention. Fig. 7 is an exploded perspective view of the external intermediate shield shown in Fig. 6. Fig. 8 is a sectional view of a vacuum switching tube according to a sixth embodiment of the present invention. Fig. 9 is a sectional view of a vacuum switch tube according to a seventh embodiment of the present invention. Figure 10 is an exploded perspective view of the external intermediate shield shown in Figure 9. Fig. 11 is an exploded perspective view of an external intermediate shield of a vacuum switch tube according to an eighth embodiment of the present invention. Fig. 12 is a sectional view of a vacuum switch tube according to a ninth embodiment of the present invention. Fig. 13 is a sectional view of a vacuum switching tube in Embodiment 10 of the present invention. Figure 15 is an exploded perspective view of the external intermediate shield shown in Figure 14. Fig. 16 is a sectional view of a vacuum switching tube according to Embodiment 12 of the present invention. Figure 17 is an exploded perspective view of the external intermediate shield shown in Figure 16. 1 Both ends of the middle cylinder 1a, 1b (of the middle cylinder) 1 d Outer surface 2, 3 Arc shield 2a, 3a (arc shield) fixing part 2 b, 3 b Extension part 2 c, 2 1 c Screw part 2 d, 2 1 d screw hole 4, 5 metal barrel
314294.ptd 第25頁 200301910 圖式簡單說明 ,6 a、6 b 連接部 7、8 絕緣筒 9、1 0端板 1 0 a開口部 1 1 固定接觸構件 12 伸縮囊 13 可動接觸構件 1 4、 1 6、 1 8、 1 9、2 卜 2 3 a、2 3 b、2 4、2 8 外部中間屏蔽 14a、 14b (外部中間屏蔽之）半筒 β 1 4c (外部中間屏蔽之）環狀部 1 4d (環狀部之）最内周部 14e (半筒之）分割面 ~ 1 4 f (分割面上所切取之）母螺絲 (貫穿分割面之）螺絲孔 1 4 h (環狀部之）兩側端面 1 4 i、2 4 b 孔 1 4 j兩端部 1 5 固定構件 1 5a螺絲頭 1 7a、1 7b 固定管 JL 8 a、2 4歛縮部 1 8 b内側面 2 0 a、2 0 b 黏接層 1 9 a、2 1 a (外部中間屏蔽之）内面 2 1 b段周部 2 2、2 5 螺絲 26a、26b 屏蔽按壓具 27 按壓螺栓 29 圓筒 2馨^ (圓筒上所切取之）母螺絲 3 0、3 3、3 5 支撐構件 31 固定螺栓 1 a (固定螺栓之）螺栓頭 3 2 螺栓屏蔽 34 凸緣 3 4a (凸緣之）母螺絲 、6 環 3 6 a (環之）母螺絲314294.ptd Page 25 200301910 The diagram is briefly explained, 6 a, 6 b connecting part 7, 8 insulation tube 9, 10 end plate 1 0 a opening 1 1 fixed contact member 12 telescopic bag 13 movable contact member 1 4, 1 6, 1 8, 1 9, 2 Bu 2 3 a, 2 3 b, 2 4, 2 8 External intermediate shield 14a, 14b (of the external intermediate shield) half tube β 1 4c (of the external intermediate shield) ring portion 1 4d (of the annular portion) innermost peripheral portion 14e (of the half-cylinder) split surface ~ 1 4 f (cut from the split surface) female screw (through the split surface) screw hole 1 4 h (of the annular portion ) End faces on both sides 1 4 i, 2 4 b Holes 1 4 j Both ends 1 5 Fixing member 1 5a Screw head 1 7a, 1 7b Fixing tube JL 8 a, 2 4 Constriction 1 8 b Inner side 2 0 a , 2 0 b Adhesive layer 1 9 a, 2 1 a (of the outer middle shield) inner surface 2 1 b section periphery 2 2, 2 5 screws 26a, 26b shield pressing tool 27 pressing bolt 29 cylinder 2 Xin ^ (round (Cut from the barrel) female screw 3 0, 3 3, 3 5 supporting member 31 fixing bolt 1 a (of the fixing bolt) bolt head 3 2 bolt shield 34 flange 3 4a (of the flange) female screw, 6 ring 3 6 a (ring) female screw
• 314294.ptd 第26頁• 314294.ptd Page 26
Claims (1)
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002004723 | 2002-01-11 | ||
| JP2002004720 | 2002-01-11 | ||
| JP2002004722 | 2002-01-11 | ||
| JP2002004721 | 2002-01-11 | ||
| JP2002004724 | 2002-01-11 | ||
| JP2002348241A JP2003272492A (en) | 2002-01-11 | 2002-11-29 | Vacuum switch tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW200301910A true TW200301910A (en) | 2003-07-16 |
| TW584874B TW584874B (en) | 2004-04-21 |
Family
ID=27671274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW092100379A TW584874B (en) | 2002-01-11 | 2003-01-09 | Vacuum switch tube |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2003272492A (en) |
| KR (1) | KR100499659B1 (en) |
| CN (1) | CN1433036A (en) |
| TW (1) | TW584874B (en) |
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|---|---|---|---|---|
| US8450630B2 (en) * | 2007-06-05 | 2013-05-28 | Cooper Technologies Company | Contact backing for a vacuum interrupter |
| KR200445723Y1 (en) | 2007-09-20 | 2009-08-27 | 주식회사보림전자 | Push button switch |
| JP5277182B2 (en) * | 2010-01-18 | 2013-08-28 | 株式会社日立製作所 | Switchgear for storing switch and switchgear |
| JP5381951B2 (en) * | 2010-10-04 | 2014-01-08 | 三菱電機株式会社 | Vacuum valve |
| JP5641944B2 (en) * | 2011-01-13 | 2014-12-17 | 三菱電機株式会社 | Vacuum valve |
| CN106531542B (en) * | 2016-12-16 | 2018-12-07 | 中国西电电气股份有限公司 | A kind of vacuum interrupter with composite barrier structure |
| EP3780056B1 (en) * | 2019-08-16 | 2025-09-24 | Siemens Aktiengesellschaft | Ventilating insulating member for interrupter units, switching device and switchgear arrangement comprising an interruter unit |
| JP7361654B2 (en) * | 2020-04-24 | 2023-10-16 | 三菱電機株式会社 | vacuum valve |
| JP7446524B2 (en) | 2021-05-31 | 2024-03-08 | 三菱電機株式会社 | vacuum valve |
| CN114551147A (en) * | 2022-04-02 | 2022-05-27 | 西安西电开关电气有限公司 | A multi-section porcelain shell type vacuum interrupter with external shielding structure |
| EP4657484A1 (en) * | 2024-05-27 | 2025-12-03 | ABB Schweiz AG | Vacuum interrupter |
-
2002
- 2002-11-29 JP JP2002348241A patent/JP2003272492A/en active Pending
-
2003
- 2003-01-07 KR KR10-2003-0000765A patent/KR100499659B1/en not_active Expired - Fee Related
- 2003-01-08 CN CN03103872A patent/CN1433036A/en active Pending
- 2003-01-09 TW TW092100379A patent/TW584874B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| TW584874B (en) | 2004-04-21 |
| CN1433036A (en) | 2003-07-30 |
| KR20030061308A (en) | 2003-07-18 |
| KR100499659B1 (en) | 2005-07-07 |
| JP2003272492A (en) | 2003-09-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | Annulment or lapse of patent due to non-payment of fees |