公开(公告)号：US06590173B2

公开(公告)日：2003-07-08

申请号：US10151292

申请日：2002-05-21

申请人： Naoshi Uchida ,  Fumiyoshi Kawahara ,  Syuichi Sugiyama

发明人： Naoshi Uchida ,  Fumiyoshi Kawahara ,  Syuichi Sugiyama

IPC分类号： H01H122

CPC分类号： H01H73/045 ,  H01H1/205 ,  H01H1/2058 ,  H01H2001/223

摘要： A current-interrupting section of a molded case circuit breaker includes fixed contact shoes and a rotary bridge-type contact shoe held in a contact shoe holder. A pair of pressure springs is assembled in the contact shoe holder to press the rotary contact shoe to the fixed contact shoes. The pressure spring is torsion coil springs and have U-shaped offset arm portion drawn out from the center of the coil. A pair of the torsion coil springs is arranged above and under the rotary contact shoe. Furthermore, legs of the torsion coil springs at ends are hooked to sidewalls of the contact shoe holder. The offset arm portions at the center of the torsion coil springs engage the rotary contact shoe at positions symmetrical with respect to the rotational center of the rotary contact shoe.

公开(公告)号：US07541901B2

公开(公告)日：2009-06-02

申请号：US11712899

申请日：2007-03-02

申请人： Masaaki Nakano ,  Syuichi Sugiyama ,  Masaru Isozaki

发明人： Masaaki Nakano ,  Syuichi Sugiyama ,  Masaru Isozaki

IPC分类号： H01H9/30

CPC分类号： H01H9/446 ,  H01H9/302 ,  H01H9/34 ,  H01H73/18

摘要： A circuit breaker for a double-break mechanism includes a current interrupting section having a contact mechanism. The contact mechanism includes first and second fixed contactors arranged in parallel and having fixed contacts, and a bridging movable contactor having an arm with movable contacts opposing the fixed contacts. A magnetic plate may be interposed in a middle region between two pairs of the fixed and movable contacts extending along a path of switching movement of the movable contactor. Partition walls formed of organic polymer material may be provided to stand along the path of the movable contactor. The partition walls sandwich each pair of the fixed contact and the movable contact to form a narrow gap arc extinguishing space between the partition walls.

摘要翻译： 一种用于双断路机构的断路器包括具有接触机构的电流中断部分。 接触机构包括并联布置并具有固定触点的第一和第二固定接触器，以及桥接活动接触器，其具有与可动触头相对的固定触头的臂。 磁性板可以插入沿着可移动接触器的切换运动的路径延伸的两对固定和可动触头之间的中间区域中。 由有机聚合物材料形成的分隔壁可以设置成沿着活动接触器的路径放置。 分隔壁夹着每对固定触点和可动触头，以在分隔壁之间形成狭窄的间隙灭弧空间。

公开(公告)号：US20070210885A1

公开(公告)日：2007-09-13

申请号：US11712899

申请日：2007-03-02

申请人： Masaaki Nakano ,  Syuichi Sugiyama ,  Masaru Isozaki

发明人： Masaaki Nakano ,  Syuichi Sugiyama ,  Masaru Isozaki

IPC分类号： H01H9/30

CPC分类号： H01H9/446 ,  H01H9/302 ,  H01H9/34 ,  H01H73/18

摘要： A circuit breaker for a double-break mechanism includes a current interrupting section having a contact mechanism. The contact mechanism includes first and second fixed contactors arranged in parallel and having fixed contacts, and a bridging movable contactor having an arm with movable contacts opposing the fixed contacts. A magnetic plate may be interposed in a middle region between two pairs of the fixed and movable contacts extending along a path of switching movement of the movable contactor. Partition walls formed of organic polymer material may be provided to stand along the path of the movable contactor. The partition walls sandwich each pair of the fixed contact and the movable contact to form a narrow gap arc extinguishing space between the partition walls.

摘要翻译： 用于双断路机构的断路器包括具有接触机构的电流中断部分。 接触机构包括并联布置并具有固定触点的第一和第二固定接触器，以及桥接活动接触器，其具有与可动触头相对的固定触头的臂。 磁性板可以插入沿着可移动接触器的切换运动的路径延伸的两对固定和可动触头之间的中间区域中。 由有机聚合物材料形成的分隔壁可以设置成沿着活动接触器的路径放置。 分隔壁夹着每对固定触点和可动触头，以在分隔壁之间形成狭窄的间隙灭弧空间。