| 摘要 |
PROBLEM TO BE SOLVED: To obtain a resin mold vacuum bulb small in residual stress, and large in electrical field moderation effect. SOLUTION: The vacuum bulb is equipped with a vacuum insulated container 1, a fixed side sealed metal fitting 2, a movable side sealing metal fitting 3 sealed on both end opening parts of the vacuum insulated container 1, a fixed side energization axis 4 fixed to the fixed side sealed metal fitting 2, a fixed side internal shield 5 installed at an intermediate part of the fixed side energization axis 4, a fixed side contact 6 installed on the end of the fixed side energization axis 4, a movable side energization axis 8 to penetrate through the movable side sealed metal fitting 3, a movable side contact 7 installed at the end of the movable side energization axis 8, a bellows 9 sealed between the movable side energization axis 8 and the movable side sealed metal fitting 3, a movable side internal shield 11 installed at the movable side sealing metal fitting 3, a fixed side external shield 13 installed so as to surround one end of the vacuum insulated container 1, a movable side external shield 14 installed so as to surround the other end of the vacuum insulated container 1, and an insulating layer 15 installed at the outer periphery of the vacuum insulated container 1, the fixed side external shield 13, and the movable side external shield 14. COPYRIGHT: (C)2009,JPO&INPIT
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