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1. 发明专利

JPH10149732A POLYMER INSULATOR TUBE 失效
公开(公告)号：JPH10149732A
公开(公告)日：1998-06-02
申请号：JP30651396
申请日：1996-11-18
申请人： NGK INSULATORS LTD
发明人： NAKAYAMA TETSUYA , SOGA MASASHIGE
IPC分类号： H01B17/00 , H01B17/26
摘要： PROBLEM TO BE SOLVED: To provide a polymer insulator tube of which a flange metal tool and a FRP core are not parted even if bending load is applied at high temperature for a long duration. SOLUTION: This polymer insulator is constituted of a hollow core member 1, an outer coating 2 made of an insulating polymer material and formed on the outer circumference of the hollow core member 1, and a flange metal tool 3 installed in both end parts of the hollow core member 1 and the outer coating 2 is constituted of a sheath member 2-1 covering the outer circumference of the hollow core member 1 and a plurality of shed parts 2-2 formed at proper gaps in the longitudinal direction and extended outward in the radius direction from the outer circumference of the sheath member 2-1. In this case, a reinforcing member 5 to prevent the peeling of an adhesive part between the flange metal tool 3 and the hollow core member 1 is formed at the position corresponding to the flange metal tool 3.

2. 发明专利

JPH09196996A DEVICE FOR TESTING CORONA DISCHARGE OF INSULATION CYLINDER AND TESTING METHOD USING THE DEVICE 失效
公开(公告)号：JPH09196996A
公开(公告)日：1997-07-31
申请号：JP914096
申请日：1996-01-23
申请人： NGK INSULATORS LTD
发明人： NAKAYAMA TETSUYA , FUKAMI YUKITERU , SOGA MASASHIGE
IPC分类号： G01R31/12 , G01R29/00 , H01B17/00
摘要： PROBLEM TO BE SOLVED: To provide a device for testing corona discharge of an insulation cylinder and a testing method by which the corona discharging state of an FRP cylinder for polymer porcelain busing can be tested simply. SOLUTION: This device comprises a first ring member 3 to which a voltage is applied and which is provided setably on the outer circumference of an insulation cylinder 2, a second ring member 4 for earthing which is provided setably on the outer circumference of the insulation cylinder 2, and a base 5 for fixing the members 3 and 4 integrally. The inner diameters of the members 3 and 4 are made equivalent to each other, and the sectional shapes of the members 3 and 4 that are cut from the center of the cylinder 2 in the radial direction are made square substantially. By using such a testing device 1, a voltage is applied to the member 3, and the cylinder 2 is moved vertically by a supporting member in this state, thereby giving an electric field to the lower part of the cylinder 2 so as to test the corona discharge state.

3. 发明专利

JPH11273475A Polymer bushing 失效
标题翻译： POLYMER BUSHING
公开(公告)号：JPH11273475A
公开(公告)日：1999-10-08
申请号：JP7713998
申请日：1998-03-25
申请人： Ngk Insulators Ltd , 日本碍子株式会社
发明人： FUKAMI YUKITERU , SOGA MASASHIGE
IPC分类号： H01B17/00 , H01B17/26
摘要： PROBLEM TO BE SOLVED: To provide a polymer bushing which does not generate partial electric discharge despite rain precipitation during the service and can prevent deterioration due to partial discharge irrespective of the degree of yield strength of a sheath material for the partial discharge. SOLUTION: A polymer bushing 1 is composed of an insulating tube 11, a center conductor 21 furnished penetrating the center of the tube 11, and an electric field relieving means 31 installed between the tube 11 and center conductor 21 in a location below the tube 11, wherein the tube is filled with an insulating medium consisting of a gas or oil, and the means 31 is composed of an inner grounding electrode 32 in cylindrical form furnished concentrically around the center conductor 21, a capacitor rod 33 fixed to the top of the electrode 32 and extending upward, and a conductor ring 34 supported by the rod 33 concentrically to the center conductor 21.
摘要翻译：要解决的问题：提供一种聚合物衬套，尽管在使用过程中有雨沉淀而不产生局部放电，并且可以防止局部放电的劣化，而不管用于局部放电的护套材料的屈服强度。解决方案：聚合物衬套1由绝缘管11，穿过管11的中心的中心导体21和安装在管11和中心导体21之间的位于管11下方的位置的电场释放装置31组成其中，所述管填充有由气体或油组成的绝缘介质，并且所述装置31由围绕中心导体21同心布置的圆柱形内部接地电极32，固定到所述中心导体21的顶部的电容器杆33 电极32并向上延伸，以及由杆33同心地支撑到中心导体21的导体环34。

4. 发明专利

JPH10214529A POLYMER INSULATING TYPE WITH CAPPING GROUP DIFFERENT IN LEAKAGE DISTANCE AND MOLD USED IN MANUFACTURING IT 失效
公开(公告)号：JPH10214529A
公开(公告)日：1998-08-11
申请号：JP1643097
申请日：1997-01-30
申请人： NGK INSULATORS LTD
发明人： NAKAYAMA TETSUYA , SOGA MASASHIGE
IPC分类号： H01B17/00 , H01B19/00
摘要： PROBLEM TO BE SOLVED: To provide a polymer insulating tube with a capping group wit different leakage distances, long enough to economically obtain leakage distances required for a preset staining degree, and a mold used in manufacturing it. SOLUTION: A polymer insulating tube 1 has a core member 2 and a sheath 3 made of insulating polymeric material and formed on the outer periphery of the core member 2, the sheath 3 consisting of the sheathing part 4 to cover the outer periphery of the core member 2 and capping parts 5 provided at proper spaces in the longitudinal direction to be extended from the outer periphery of the sheathing part 4 to the outside in the radial direction. If L is a leakage distance between the capping parts 5 and H is the overhang of the capping parts 5 from the sheathing part 4, a capping group different in L/H is partly arranged over the longitudinal direction of the polymer insulating tube 1. A mold used in manufacturing it has a cavity to form caps in the capping group different in L/H over the longitudinal direction.

5. 发明专利

JPH09153316A METHOD FOR JOINTING CORE CYLINDER OF COMPOSITE BUSHING TO FLANGE METAL BY PRESS-FITTING 失效
公开(公告)号：JPH09153316A
公开(公告)日：1997-06-10
申请号：JP31227195
申请日：1995-11-30
申请人： NGK INSULATORS LTD
发明人： NAKAYAMA TETSUYA , KIRII MASANOBU , UCHIUMI YUSUKE , FUKAMI YUKITERU , SOGA MASASHIGE
IPC分类号： H01B17/26 , B23P11/02 , B29C65/48 , B29C65/56 , F16B11/00 , H01B17/38 , H01B19/00
摘要： PROBLEM TO BE SOLVED: To provide a method for jointing a core tube of a composite bushing to a flange metal by press-fitting wherein there is no need to keep the core tube of the composite bushing and the flange metal fixed to each other until a resin has cured to exhibit adhesion, much labor is not required because assembling accuracy is ensured, and required mechanical strength and airtight property can be ensured. SOLUTION: An outer diameter of a core cylinder 1 of a composite bushing is established to be larger than an inner diameter 23 of an inside hole of a flange metal 2 at ordinary temperatures prior to jointing it by press-fitting. Nextly, a resin is applied to, at least, either one of an outer circumferential surface of the core cylinder 1 of the composite bushing and an inner circumferential surface of the inside hole of the flange metal 2 and, after the two are aligned with each other, the core tube 1 of the composite bushing is press-fitted into the insertion hole of the flange metal 2, and the flange metal 2 is adhesively jointed to an end part of the core cylinder 1 of the composite bushing by curing the applied resin.

6. 发明专利

JPH11312424A DETERIORATION DECREASING STRUCTURE OF COVERING IN COMPOSITE INSULATOR 失效
公开(公告)号：JPH11312424A
公开(公告)日：1999-11-09
申请号：JP11890098
申请日：1998-04-28
申请人： NGK INSULATORS LTD
发明人： NAKAYAMA TETSUYA , SOGA MASASHIGE
IPC分类号： H01B17/00 , H01B17/26 , H01B17/50
摘要： PROBLEM TO BE SOLVED: To eliminate deterioration of a covering, by reducing the electric discharge on a surface of the covering and an effect of leak current. SOLUTION: In a polymer bushing 1 comprising a core member 2 and a covering 3 consisting of a trunk part 4 provided around the core member 2 and a plurality of sheds 5, a deterioration decreasing structure of the covering is formed by providing a plurality of independent projections 11 on the covering 3 substantially at regular intervals, whereby adhering strength of waterdrops to the covering 3 is decreased and a dirt adhesion layer allowing leak current to flow therethrough is separated from the surfaces of the covering 3.

7. 发明专利

JPH10199350A POLYMERIC INSULATOR WITH WET COROMA RESTRAINING UMBRELLA 失效
公开(公告)号：JPH10199350A
公开(公告)日：1998-07-31
申请号：JP370797
申请日：1997-01-13
申请人： NGK INSULATORS LTD
发明人： FUKAMI YUKITERU , SOGA MASASHIGE
IPC分类号： H01B17/00
摘要： PROBLEM TO BE SOLVED: To prevent communication trouble and degradation of an outer cover due to corona generation with water pouring without using a shield ring by providing a bracket that is upside during setup with a wet corona restraining umbrella having its greater diameter than the diameter of a top umbrella part independent of an outer cover. SOLUTION: A polymeric insulator 1 has a hollow core material and an outer cover 3 formed of an insulation polymeric material on an outer peripheral face of this hollow core material. A flange bracket 6-1 that is upside during setup is provided with a insulating wet corona restraining umbrella 7 having its greater diameter than the diameter of a top umbrella part 5-1 in the form of being separated independent of an outer cover 3 consisting of an umbrella part 5 and a bellows part 4. Thereby, since the top umbrella part 5-1 is protected by the umbrella 7 free of water, it is identical to dry state, and partial discharge is not generated. Therefore, corona generation by water pouring can be effectively restrained. In addition, communication trouble and degradation of an insulator can be prevented.

8. 发明专利

JPH09231844A VIBRATION-PROOF COMPOSITE INSULATOR TUBE 失效
公开(公告)号：JPH09231844A
公开(公告)日：1997-09-05
申请号：JP3938596
申请日：1996-02-27
申请人： NGK INSULATORS LTD
发明人： NAKAYAMA TETSUYA , SOGA MASASHIGE
IPC分类号： H01B17/00 , H01B17/26
摘要： PROBLEM TO BE SOLVED: To enhance vibration damping simply and effectively by installing a vibration dampling mechanism to a complex insulator tube itself while the structure of the complex insulator tube is allowed to function well according to the intention. SOLUTION: A vibration-proof insulator tube of complex structure has a core 1 composed of an outer core member 1b and an inner core member 1a in cylindrical shape, and between the two, a ring-shaped gap S is provided. A lower metal fixed 2a and upper metal fixture 2b are installed at the ends of the core 1. Between the core members 1a and 1b at the bottom, a spacer 4 is furnished to hold the gap S. Between the core members 1a and 1b at the top, on the other hand, a frictional sliding member 5 is installed to hold the gap and make it possible for the members 1a and 1b to slide relatively. The frictional sliding member 5 is composed of a ring-shaped part 5a to be fitted in the gap S and a wide part 5b extending inward in the radial direction, and the top of the member 1a contacts with the ring-shaped part 5b. The fixture 2a and members 1a, 1b, 4 in contact with it are adhered to each other, and at the top of the core 1, the members 1a and 1b are adhered fast to the sliding member 5 and metal fixture 2b respectively.

9. 发明专利

JP2000011781A METHOD FOR JOINING FRP TUBE TO FLANGE FITTING FOR POLYMER BUSHING 失效
公开(公告)号：JP2000011781A
公开(公告)日：2000-01-14
申请号：JP17333198
申请日：1998-06-19
申请人： NGK INSULATORS LTD
发明人： NAKAYAMA TETSUYA , KIRII MASANOBU , SOGA MASASHIGE
IPC分类号： H01B17/00 , H01B19/00
摘要： PROBLEM TO BE SOLVED: To provide a method for joining an FRP tube to a flange fitting for a polymer bushing, realizing a joining part satisfactory in both strength and airtightness. SOLUTION: In a method for joining an FRP tube 1 to a flange fitting 2 for a polymer bushing comprising the FRP tube 1, an outer cladding made up of a trunk part as well as a plurality of sheds provided on the periphery of the FRP tube 1, and the flange fitting 2 provided on an end part of the FRP tube 1, the surface roughness Ra, at least, of an inner circumferential surface of an insertion hole 3 in the flange fitting 2 in which the FRP tube 1 is inserted is adapted to be 1 to 10 μm, and then the flange fitting 2 is shrinkage-fitted into the FRP tube 1 with an adhesive agent between.

10. 发明专利

JPH11329122A JOINING STRUCTURE OF COMPOUND INSULATOR ENVELOPE WITH FLANGE METAL FITTING 失效
公开(公告)号：JPH11329122A
公开(公告)日：1999-11-30
申请号：JP13636998
申请日：1998-05-19
申请人： NGK INSULATORS LTD
发明人： NAKAYAMA TETSUYA , SOGA MASASHIGE
IPC分类号： H01B17/00
摘要： PROBLEM TO BE SOLVED: To provide sufficient long-term reliability. SOLUTION: In this joining structure of a flange metal fitting 6 with an envelope 3 of a compound insulator 1 which is composed of a core member 2, the envelope 3 consisting of a barrel part 4 and plural umbrellas 5 around the core member 2, and the flange metal fitting 6 provided to the end of the core member 2, the length of an axially parallel joining surface 11 among surfaces continuing from the inner periphery of the envelope 3 to the outer periphery of the flange metal fitting 6 is defined as DL, and the length of the inner stepped part 12 extending radially inward from one end of the parallel joining surface 11 is defined as DH1, further the length of an outer stepped part 13 extending radially outward from the other end of the parallel joining surface 11 is defined as DH. Here, the joining surfaces of the jacket 3 with the flange metal fitting 6 are constituted such that the following relationships are met: DH1>DH2, and DL>DH1+DH2.

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