发明授权
US3742168A Minimum-oil circuit breaker including movable contact rod with elastically deformable braking member for applying braking force thereto proportional to gas pressure generated in arc-quenching chamber
失效
最小油路断路器，其中包括用弹性变形制动器构件的可移动接触件，用于将其制造成比例的制动力用于在电弧炉中产生的气体压力
- 专利标题： Minimum-oil circuit breaker including movable contact rod with elastically deformable braking member for applying braking force thereto proportional to gas pressure generated in arc-quenching chamber
- 专利标题（中）： 最小油路断路器，其中包括用弹性变形制动器构件的可移动接触件，用于将其制造成比例的制动力用于在电弧炉中产生的气体压力
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申请号： US3742168D申请日： 1971-08-19
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公开(公告)号： US3742168A公开(公告)日： 1973-06-26
- 发明人: LATAL W , SCHNEEBELI W
- 申请人： BBC BROWN BOVERI & CIE
- 专利权人： Bbc Brown Boveri & Cie
- 当前专利权人： Bbc Brown Boveri & Cie
- 优先权： CH1347270 1970-09-10
- 主分类号： H01H3/60
- IPC分类号： H01H3/60 ; H01H33/75 ; H01H33/68
摘要：
A circuit breaker of the minimum-oil type includes a chamber for quenching the arc drawn between a movable contact rod and a stationary contact as the two separate. To counteract and damp the acceleration effect produced on the movable contact rod within the quenching chamber as a result of gas pressure built up within the chamber due to arc action, a softly elastic annular damping member closely surrounds the movable contact rod and is deformed in a radially inward direction by the gas pressure to press against the movable contact rod and hence provide a braking action for the rod. The radially inward deformation of the elastic damping member is proportional to the gas pressure produced in the quenching chamber and hence provides a braking effect on the movable contact rod which desirably increases with an increase in gas pressure.
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