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    • 21. 发明授权
    • Vacuum power interrupting device
    • 真空电源中断装置
    • US4429197A
    • 1984-01-31
    • US215855
    • 1980-12-12
    • Shinzo SakumaHifumi YanagisawaKazuo TokuhataHiroshi Miyagawa
    • Shinzo SakumaHifumi YanagisawaKazuo TokuhataHiroshi Miyagawa
    • H01H33/66
    • H01H33/66
    • A vacuum vessel 7 comprises a bell shaped metal casing 5, and an insulating circular end plate 6 hermetically brazed to the opening end of the metal casing. A vacuum interrupter 3 is constituted by aligning a stationary contact rod 20 with a movable contact rod 17, each having an electrical contact 8,9, within the vacuum vessel so that the latter is in contact with the former or away therefrom. A vacuum power interrupting device comprises a disk-shaped resin supporting block 4 in which the vacuum interrupter is molded. A stationary electrode 23 is connected to a stationary contact rod 20 disposed within the vacuum interrupter. A tubular insulating barrier is integrally formed with the supporting block so as to surround the stationary electrode. The vacuum power interrupting device further comprises an electromagnet supported by a plurality of supporting poles 47a, 47b extending along the outer circumferential surface of the supporting block, and an adsorbed member 44 of a magnetic material responsive to the electromagnet and supported by an insulating rod 43 connected to the movable contact rod. Thus, the armature member is in contact with or away from an iron core 52 of the electromagnet in accordance with the energized or deenergized condition of the electro magnet to bring the vacuum interrupter into an interrupted condition or a closed condition.
    • 真空容器7包括钟形金属壳体5和密封钎焊到金属壳体的开口端的绝缘圆形端板6。 真空断路器3通过将固定接触杆20与在真空容器内具有电接触件8,9的可动接触杆17对准来构成,以使得该接触杆与前者接触或远离其。 真空动力中断装置包括模制真空灭弧室的盘形树脂支撑块4。 固定电极23连接到设置在真空断路器内的固定接触杆20。 与支撑块一体地形成管状绝缘屏障,以便围绕固定电极。 真空动力中断装置还包括由沿着支撑块的外周面延伸的多个支撑杆47a,47b支撑的电磁体以及响应于该电磁体并由绝缘杆43支撑的磁性材料的吸附构件44 连接到可动接触杆。 因此,电枢构件根据电磁体的通电或断电状态与电磁体的铁芯52接触或远离,以使真空断路器处于中断状态或闭合状态。
    • 26. 发明授权
    • Vacuum interrupter
    • 真空灭弧室
    • US4482790A
    • 1984-11-13
    • US448460
    • 1982-12-10
    • Hiroshi MiyagawaMasayuki Kano
    • Hiroshi MiyagawaMasayuki Kano
    • H01H33/66H01H33/662
    • H01H33/66261H01H2033/66215H01H2033/66223H01H2033/6623H01H2033/66292H01H33/66207
    • A vacuum interrupter (10) has a metallic member (11, 13) for a vacuum envelope and an insulating member (12a, 12b) for the vacuum envelope, made of unglazed insulating ceramics. A pair of separable stationary and movable contacts (24, 29) contained in the vacuum envelope. A movable lead rod (16) is rigidly secured to a movable disc-shaped electrode (30) which has the movable contact (29), extending outwardly of the vacuum envelope. Bellows secured in a vacuum-tight manner to the rod (16) and to the vacuum envelope. An impervious insulating film is coated adhesively on atmospheric-side surfaces of the insulating member (12a, 12b) and of the vacuum-tightly connected portion and vicinity thereof between the insulating member (12a, 12b) and metallic member (11, 13) for the vacuum envelope. Consequently, the vacuum envelope of the interrupter (10) is free from adsorbing moisture and pollutant, thereby preventing insulating performance of the envelope from lowering, and highly improving reliablity of vacuum-tightness of the envelope.
    • 真空灭弧室(10)具有用于真空外壳的金属构件(11,13)和由无釉绝缘陶瓷制成的用于真空外壳的绝缘构件(12a,12b)。 包含在真空外壳中的一对可分离的固定和可动触头(24,29)。 可移动的导杆(16)刚性地固定到具有可移动接触件(29)的可移动的盘形电极(30),该可动接触件(29)从真空外壳向外延伸。 波纹管以真空密封方式固定到杆(16)和真空外壳。 在绝缘部件(12a,12b)的绝缘部件(12a,12b)和绝缘部件(12a,12b)与金属部件(11,13)之间的真空密封连接部分及其附近的气氛侧表面上粘附有不透水绝缘膜, 真空包络。 因此,断流器(10)的真空外壳不会吸收水分和污染物,从而防止外壳的绝缘性能降低,并且高度提高了外壳真空密封性的可靠性。
    • 27. 发明授权
    • Vacuum circuit breaker
    • 真空断路器
    • US4421961A
    • 1983-12-20
    • US235023
    • 1981-02-13
    • Shinzo SakumaHifumi YanagisawaKazuo TokuhataHiroshi Miyagawa
    • Shinzo SakumaHifumi YanagisawaKazuo TokuhataHiroshi Miyagawa
    • H01H33/38H01H33/66H01H33/666
    • H01H33/666H01H2033/6623H01H33/38H01H33/66207
    • A vacuum power interrupting device comprising a bell-shaped vacuum power interrupter which includes a bell-shaped metallic casing wherein a pair of electrical contact rods are extended for interrupting a large current with a high voltage, and insulating molded block made of a resin for supporting the bell-shaped vacuum power interrupter. According to the present invention, there is provided a single-phase or three-phase vacuum power interrupting device comprising a vacuum power interrupter which includes a bell-shaped metallic casing, a ceramic insulating circular end plate fitted to the opening end of the bell-shaped metallic casing, and a pair of electrical contact rods having electrical contacts partially extended within the casing, being normally in contact with each other or moving away from each other, and an insulating molded block made of a resin into which the outer peripheral surface of the radially extended portion of the bell-shaped metallic casing and insulating circular end plate are integrally burried, whereby the atmospheric creepage distance from a movable electrical contact rod serving as an electrically charged portion is increased so that the atmospheric dielectric strength of the vacuum power interrupter becomes greater and a larger current with higher voltage can be interrupted.
    • 一种真空动力中断装置,包括钟形真空断路器,其包括钟形金属壳体,其中延伸一对电接触杆以高电压中断大电流,以及由用于支撑的树脂制成的绝缘模制块 钟形真空断电器。 根据本发明,提供了一种单相或三相真空动力中断装置,其包括真空断电器,该真空断电器包括钟形金属壳体,安装在钟形金属壳体的开口端的陶瓷绝缘圆形端板, 以及一对具有在壳体内部分延伸的电触头的电接触棒,通常彼此接触或彼此远离;以及由树脂制成的绝缘模制块,其中外周表面 钟形金属壳体和绝缘圆形端板的径向延伸部分整体地结合在一起,从而与用作带电部分的可移动电接触杆的大气爬电距离增加,使得真空断路器的大气介电强度 变得更大,并且可以中断具有较高电压的较大电流。