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1. 发明授权

US4419553A Vacuum type circuit breaker 失效
标题翻译：真空式断路器
公开(公告)号：US4419553A
公开(公告)日：1983-12-06
申请号：US336433
申请日：1981-12-31
申请人： Masayuki Ohshita , Toshiaki Horiuchi , Takashi Yamanaka , Yoshihiro Usui
发明人： Masayuki Ohshita , Toshiaki Horiuchi , Takashi Yamanaka , Yoshihiro Usui
IPC分类号： H01H33/66 , H01H33/666 , H01H33/00
CPC分类号： H01H33/666 , H01H2001/5827 , H01H2033/6667 , H01H33/668
摘要： A vacuum type circuit breaker which has an operating lever (31) connected at one end thereof to the movable electrode (102) of a vacuum switch tube (1) and at the other end to a closing spring (55) through an energy storage link mechanism (54). The operating lever (31) functions to drive the movable electrode (102). The energy storage link mechanism (54) is provided with an energy storage crank (52) pivotally supported on a shaft (2051). The force which the energy storage link mechanism (54) applies to the operating lever (31) is set such that it is less than a force on the operating lever (31) which is produced by the difference between the internal pressure of the vacuum switch tube (1) and atmospheric pressure. This arrangement makes it possible, upon occurrence of vacuum loss, to detect the vacuum shortage, whereupon the closing of the switch is prevented to thereby avoid an accident due to vacuum degradation.
摘要翻译：一种真空式断路器，其具有在其一端连接到真空开关管（1）的可动电极（102）的操作杆（31），另一端通过能量存储连杆机构（54）。操作杆（31）用于驱动可动电极（102）。能量存储连杆机构（54）设置有枢转地支撑在轴（2051）上的储能曲柄（52）。能量存储连杆机构54施加到操作杆31的力被设定为小于由真空开关的内部压力之间的差异产生的操作杆（31）上的力管（1）和大气压力。这种布置使得在发生真空损失时可以检测真空不足，从而防止开关的闭合，从而避免由于真空劣化而引起的事故。

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