| 发明名称 | Polymer surge arrester | ||
| 摘要 | A plurality of insulating rods are placed at peripheries of the nonlinear resistor and the metal plates, and each having an upper end portion and a lower end portion inserted into holes formed in the electrodes. A spacer is placed between an inner peripheral surface of the hole and an outer peripheral surface of the insulating rod inside the hole of the electrode, and a fixing screw is attached to the hole of the electrode. A double-ended bolt couples the metal plate and the electrode together. The double-ended bolt has a first screw part and a second screw part opposite in a fastening direction to the first screw part which are provided on a same axis. The first screw part is attached to the metal plate, and the second screw part is attached to the electrode. | ||
| 申请公布号 | US8982526(B2) | 申请公布日期 | 2015.03.17 |
| 申请号 | US201313771581 | 申请日期 | 2013.02.20 |
| 申请人 | Kabushiki Kaisha Toshiba | 发明人 | Anjiki Tomikazu;Komatsu Katsuaki;Aka Yoshiaki;Kobayashi Jun;Tsukui Takamichi |
| 分类号 | H01C7/12;H01C7/10 | 主分类号 | H01C7/12 |
| 代理机构 | Oblon, McClelland, Maier & Neustadt, L.L.P. | 代理人 | Oblon, McClelland, Maier & Neustadt, L.L.P. |
| 主权项 | 1. A polymer surge arrester, comprising: a nonlinear resistor; metal plates placed on an upper end face and a lower end face of the nonlinear resistor; electrodes placed on the upper end face and the lower end face of the nonlinear resistor via the metal plates; a plurality of insulating rods placed at peripheries of the nonlinear resistor and the metal plates, and each having an upper end portion and a lower end portion inserted into holes formed in the electrodes; a spacer inserted between an inner peripheral surface of the hole of the electrode and an outer peripheral surface of the insulating rod; a fixing screw attached to the hole of the electrode; and a double-ended bolt coupling the metal plate and the electrode together, the double-ended bolt having a left screw part and a right screw part opposite in a fastening direction to the left screw part which are provided on a same axis, the left screw part being attached to the metal plate the right screw part being attached to the electrode, wherein, by rotating the right screw part in the clockwise direction, a compressive load is applied on the nonlinear resistor in the axial direction of the double-ended bolt and a tensile load is applied on the insulating rods in the axial direction. | ||
| 地址 | Tokyo JP | ||