公开(公告)号：US06414256B1

公开(公告)日：2002-07-02

申请号：US09745019

申请日：2000-12-20

申请人： William Weizhong Chen ,  Frank Ehrenberger ,  Aaron Bottorff ,  Matt Sortland

发明人： William Weizhong Chen ,  Frank Ehrenberger ,  Aaron Bottorff ,  Matt Sortland

IPC分类号： H01H932

CPC分类号： H01H9/32 ,  H01H9/38 ,  H01H9/42 ,  H01H77/10

摘要： The present invention provides a current limiting circuit breaker having a current responsive device for opening a pair of contacts or switch upon short circuit conditions. The current responsive device utilizes an insulating object driven by a magnetic force caused by a short circuit current. Upon opening of the contacts with the use of the insulating object, let-through current flows through a secondary contact, positioned on the insulating object, to a positive temperature coefficient resistivity element which limits the current and arcing in the contacts. The PTC elements could be pure metallic materials such as pure tungsten, pure iron, etc. Conductive polymer and ceramic PTC materials could also be used for some specific applications. The present invention also provides a method of electrically connecting a drive plate and a line terminal on the current limiting circuit breaker.

摘要翻译： 本发明提供了一种限流断路器，其具有用于在短路状态下打开一对触点或开关的电流响应装置。 电流响应装置利用由短路电流引起的磁力驱动的绝缘物体。 当使用绝缘物体打开触点时，通电电流流过定位在绝缘物体上的次级触点到限定触点中的电流和电弧的正温度系数电阻率元件。 PTC元件可以是纯金属材料，例如纯钨，纯铁等。导电聚合物和陶瓷PTC材料也可用于某些特定应用。 本发明还提供一种电流连接限流断路器上的驱动板和线路端子的方法。