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公开(公告)号：US06310528B1
公开(公告)日：2001-10-30
申请号：US09573334
申请日：2000-05-18
IPC分类号： H01H6702
CPC分类号： H01H71/2409 , H01H73/045
摘要： In an overcurrent-tripping device for a circuit breaker, an electromagnet is used to open a movable contact shoe when a heavy current flows through a conduction path. A push rod is provided so as to contact the movable contact shoe. The electromagnet of the overcurrent-tripping device is located above the push rod so as to attract a movable iron core of the overcurrent-tripping device linearly along a moving direction of the push rod. When the heavy current such as a short-circuit current flows through the conduction path, the movable iron core is attracted to push the movable contact shoe via the push rod for rapid opening of the movable contact shoe. Thus, before a tripping operation of the opening-and-closing mechanism, the movable contact shoe is moved, so that the time required by the movable contact shoe for the opening operation is reduced.
摘要翻译： 在用于断路器的过电流跳闸装置中，当大电流流过导电路径时，使用电磁体来打开可动接触片。 提供推杆以便接触可动接触靴。 过电流跳闸装置的电磁铁位于推杆的上方，以沿着推杆的移动方向线性地吸引过电流跳闸装置的可动铁芯。 当诸如短路电流的大电流流过导电路径时，可动铁芯被吸引以通过推杆推动可动接触靴，以快速打开活动接触靴。 因此，在打开和关闭机构的跳闸操作之前，可移动接触靴被移动，使得可动触头板对于打开操作所需的时间减小。
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公开(公告)号：US06621403B2
公开(公告)日：2003-09-16
申请号：US09988810
申请日：2001-11-20
申请人： Isamu Nagahiro , Naoshi Uchida , Katsunori Kuboyama , Jun Oyama
发明人： Isamu Nagahiro , Naoshi Uchida , Katsunori Kuboyama , Jun Oyama
IPC分类号： H01H7110
CPC分类号： H01H71/162 , H01H71/1054 , H01H71/7427 , H01H83/223 , H01H2071/1063
摘要： An overload tripping device includes a temperature-compensating bimetal operating as a tripping lever and interposed between an output lever of a differential shifter mechanism linked with a main bimetal and a latch receiver of an opening-and-closing mechanism section of a circuit breaker. The temperature-compensating bimetal has an intermediate portion journaled on a bimetal holder. An operating arm made of a light molding material is attached to a tip of the temperature-compensating bimetal so as to push the latch receiver. Additionally, a balance weight may be installed on the temperature-compensating bimetal to balance inertial moments on the opposite sides of the bimetal. Thus, the circuit breaker is prevented from being inadvertently tripped due to external stimulus.
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公开(公告)号：US06512434B1
公开(公告)日：2003-01-28
申请号：US09941718
申请日：2001-08-30
IPC分类号： H01H7508
CPC分类号： H01H83/223 , H01H3/62 , H01H71/161 , H01H71/7445
摘要： A thermal overload open-phase tripping device includes in a case bimetals corresponding to different phases; a differential shifter mechanism composed of a push shifter and a pull shifter, linked to operating ends of the bimetals, and an interlocking plate; and a compensating bimetal for transmitting output from the shifter mechanism to an opening and closing mechanism section of a breaker main body. The push and pull shifters are slidably supported to extend over interphase partition walls in the case, and a case cover is placed and held over the push and pull shifters. Rib-shaped projections projecting from an inner surface of the case cover and facing the top surfaces of the shifters are provided as shifter position guides to constrain inclination of the shifters moving in accordance with bending displacement of the bimetals to hold the shifters horizontally.
摘要翻译： 一种热过载开相脱扣装置在一种情况下包括对应于不同相的双金属件; 一个与双金属片的操作端连接的推动移位器和拉动移位器构成的差速移位机构和互锁板; 以及用于将输出从变速器机构传递到断路器主体的开闭机构部分的补偿双金属片。 推拉移动器可滑动地支撑在壳体中的相间隔壁上延伸，并且壳盖被放置并保持在推拉移动器上。 从壳盖的内表面突出并且面对移位器的顶表面的肋状突起被设置为移位位置引导件，用于限制根据双金属件的弯曲位移而移动的移位器的倾斜度以水平地保持移位器。
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公开(公告)号：US5901025A
公开(公告)日：1999-05-04
申请号：US933106
申请日：1997-09-18
申请人： Tatsunori Takahashi , Takumi Fujihira , Naoshi Uchida , Katsunori Kuboyama , Hiroaki Tosaka , Kentaro Toyama , Koji Nomura , Isamu Nagahiro
发明人： Tatsunori Takahashi , Takumi Fujihira , Naoshi Uchida , Katsunori Kuboyama , Hiroaki Tosaka , Kentaro Toyama , Koji Nomura , Isamu Nagahiro
CPC分类号： H01H89/06 , H01H1/5833 , H01H2001/2091 , H01H2009/0094 , H01H2089/065 , H01H71/121 , H01H71/123 , H01H71/128 , H01H71/525 , H01H71/7409 , H01H83/223
摘要： A circuit breaker includes a current path for first and second contacts connected in series in an insulative container. When an overcurrent occurs by over load, the second contact is opened based on a command from a time delay trip portion of an overcurrent trip device. When a short-circuit current occurs, the first and second contacts are opened based on a command from an instantaneous trip portion of the overcurrent trip device. Since the first and second contacts are contained in a common container, the wiring works between the first contact and the second contact is unnecessary. Since the first and second contacts are opened in the instantaneous trip, interruption of a high short-circuit current is facilitated.
摘要翻译： 断路器包括用于在绝缘容器中串联连接的第一和第二触头的电流路径。 当通过过载发生过电流时，基于来自过电流跳闸装置的时间延迟跳闸部分的命令来打开第二触点。 当发生短路电流时，基于来自过电流跳闸装置的瞬时跳闸部分的命令来打开第一和第二触点。 由于第一和第二触头容纳在公共容器中，所以不需要在第一触点和第二触点之间工作的布线。 由于第一和第二触点在瞬时跳闸中被打开，因此便于中断高的短路电流。
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公开(公告)号：US20050280973A1
公开(公告)日：2005-12-22
申请号：US11107893
申请日：2005-04-18
申请人： Hisao Kawata , Katsunori Kuboyama , Isamu Nagahiro
发明人： Hisao Kawata , Katsunori Kuboyama , Isamu Nagahiro
CPC分类号： H01H9/0264 , H01H71/54 , H01H73/045
摘要： A circuit breaker includes terminals with screws on a power supply side and a load side disposed at a front end section and a rear end section of a main body case containing a current interrupting unit and a switching mechanism. A terminal cover is detachably attached onto the main body case at a position corresponding to the terminals on at least one of the power supply side and the load side. A terminal cover attaching surface is formed on an upper surface on the power supply side and/or the load side of the main body case. The terminal cover is inserted while sliding on the attaching surface from a front end, so that the terminal cover is attached to the main body case with a snap-fit coupling unit at an assembling position.
摘要翻译： 断路器包括在电源侧具有螺钉的端子和设置在包含电流中断单元和切换机构的主体壳体的前端部分和后端部分的负载侧。 端子盖在与电源侧和负载侧的至少一个上的端子对应的位置可拆卸地安装在主体外壳上。 端子盖安装面形成在主体壳体的电源侧和/或负载侧的上表面上。 端子盖从前端在安装面上滑动而插入，使得端子盖在组装位置处具有卡扣联接单元安装在主体壳体上。
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公开(公告)号：US06940374B2
公开(公告)日：2005-09-06
申请号：US11002111
申请日：2004-12-03
申请人： Isamu Nagahiro , Katsunori Kuboyama
发明人： Isamu Nagahiro , Katsunori Kuboyama
CPC分类号： H01H83/223
摘要： An overload/open-phase tripping device for a circuit breaker includes a plurality of bimetallic elements arranged in a row; a differential shifter mechanism; and a tripping lever for transmitting a force applied by the differential shifter mechanism to a switching mechanism. The differential shifter mechanism includes a push shifter having a plurality of operation ends; a pull shifter having a plurality of operation ends; and a differential lever disposed between the push shifter and the pull shifter. The differential lever is provided with an action end for applying the force to the tripping lever upon an overload, and an action end for applying the force to the tripping lever upon an open-phase. The two action ends face the tripping lever, and the action end for the open-phase is located at a position farther from the tripping lever than the action end for the overload.
摘要翻译： 用于断路器的过载/开路脱扣装置包括排列成一排的多个双金属元件; 差速移位机构; 以及用于将由差速换档机构施加的力传递到切换机构的脱扣杆。 差分移位机构包括具有多个操作端的推移移位器; 具有多个操作端的拉动移位器; 以及设置在推动移位器和拉动移位器之间的差速杆。 差速器杆设置有用于在过载时将力施加到脱扣杆的作用端，以及用于在开启阶段将力施加到脱扣杆的作用端。 两个动作端面对着脱扣杆，而开关相位的动作端位于离开脱扣杆的位置，而不是超载动作端。
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公开(公告)号：US06577215B2
公开(公告)日：2003-06-10
申请号：US09988032
申请日：2001-11-16
申请人： Koji Nomura , Katsunori Kuboyama , Koji Asakawa , Isamu Nagahiro , Takeshi Emura
发明人： Koji Nomura , Katsunori Kuboyama , Koji Asakawa , Isamu Nagahiro , Takeshi Emura
IPC分类号： H01K6702
CPC分类号： H01H71/0228 , H01H11/0006 , H01H71/162 , H01H71/24 , H01H71/7409 , H01H71/7445 , H01H83/223 , H01H2011/0093
摘要： In an instantaneous-tripping circuit breaker, a heater-mounted main bimetal, a shifter of a differential shifter mechanism, and an adjustment dial of a thermal overload/open-phase tripping device are removed from a standard circuit breaker equipped with a breaking section, an opening and closing mechanism section, a thermal overload/open-phase tripping device, and an electromagnetic instantaneous tripping device in a case. Instead, a trip coil of the instantaneous tripping device is connected to a main circuit via a connection conductor of a low resistance, a test-tripping part is mounted in place of the shifter of the differential shifter mechanism, and the adjustment dial is replaced with a dummy dial. Accordingly, the standard circuit breaker is changed to an instantaneous-breaking circuit breaker.
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公开(公告)号：US07170020B2
公开(公告)日：2007-01-30
申请号：US11107893
申请日：2005-04-18
申请人： Hisao Kawata , Katsunori Kuboyama , Isamu Nagahiro
发明人： Hisao Kawata , Katsunori Kuboyama , Isamu Nagahiro
CPC分类号： H01H9/0264 , H01H71/54 , H01H73/045
摘要： A circuit breaker includes terminals with screws on a power supply side and a load side disposed at a front end section and a rear end section of a main body case containing a current interrupting unit and a switching mechanism. A terminal cover is detachably attached onto the main body case at a position corresponding to the terminals on at least one of the power supply side and the load side. A terminal cover attaching surface is formed on an upper surface on the power supply side and/or the load side of the main body case. The terminal cover is inserted while sliding on the attaching surface from a front end, so that the terminal cover is attached to the main body case with a snap-fit coupling unit at an assembling position.
摘要翻译： 断路器包括在电源侧具有螺钉的端子和设置在包含电流中断单元和切换机构的主体壳体的前端部分和后端部分的负载侧。 端子盖在与电源侧和负载侧的至少一个上的端子对应的位置可拆卸地安装在主体外壳上。 端子盖安装面形成在主体壳体的电源侧和/或负载侧的上表面上。 端子盖从前端在安装面上滑动而插入，使得端子盖在组装位置处具有卡扣联接单元安装在主体壳体上。
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公开(公告)号：US20050168305A1
公开(公告)日：2005-08-04
申请号：US11002111
申请日：2004-12-03
申请人： Isamu Nagahiro , Katsunori Kuboyama
发明人： Isamu Nagahiro , Katsunori Kuboyama
CPC分类号： H01H83/223
摘要： An overload/open-phase tripping device for a circuit breaker includes a plurality of bimetallic elements arranged in a row; a differential shifter mechanism; and a tripping lever for transmitting a force applied by the differential shifter mechanism to a switching mechanism. The differential shifter mechanism includes a push shifter having a plurality of operation ends; a pull shifter having a plurality of operation ends; and a differential lever disposed between the push shifter and the pull shifter. The differential lever is provided with an action end for applying the force to the tripping lever upon an overload, and an action end for applying the force to the tripping lever upon an open-phase. The two action ends face the tripping lever, and the action end for the open-phase is located at a position farther from the tripping lever than the action end for the overload.
摘要翻译： 用于断路器的过载/开路脱扣装置包括排列成一排的多个双金属元件; 差速移位机构; 以及用于将由差速换档机构施加的力传递到切换机构的脱扣杆。 差分移位机构包括具有多个操作端的推移移位器; 具有多个操作端的拉动移位器; 以及设置在推动移位器和拉动移位器之间的差速杆。 差速器杆设置有用于在过载时将力施加到脱扣杆的作用端，以及用于在开启阶段将力施加到脱扣杆的作用端。 两个动作端面对着脱扣杆，而开关相位的动作端位于离开脱扣杆的位置，而不是超载动作端。
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公开(公告)号：US5990434A
公开(公告)日：1999-11-23
申请号：US144179
申请日：1998-08-31
申请人： Takumi Fujihira , Tatunori Takahashi , Naoshi Uchida , Katunori Kuboyama , Hiroaki Tosaka , Kentaro Toyama , Koji Nomura , Isamu Nagahiro
发明人： Takumi Fujihira , Tatunori Takahashi , Naoshi Uchida , Katunori Kuboyama , Hiroaki Tosaka , Kentaro Toyama , Koji Nomura , Isamu Nagahiro
CPC分类号： H01H71/525
摘要： A switching mechanism for a circuit breaker includes a frame; a latch rotatably supported on the frame; a holder rotatably supported on the frame and having a movable contact; a handle lever rockably supported on the frame by lever shafts; a toggle link formed of first and second links rotationally connected by a toggle shaft; and a switching spring. A free end of the first link is rotatably connected to the latch, and a free end of the second link is rotatably connected to the holder. The first and second links generally overlap each other to reduce the movement range of the toggle link to miniaturize a switching mechanism. The switching spring is situated between the toggle shaft and the handle lever at a side opposite to a switching handle with respect to the lever shaft. When the handle lever is moved, operational force of the switching spring relative to the toggle link is reversed to rotate the holder with the movable contact, and when the latch is disengaged, the operational force of the switching spring relative to the toggle link is reversed to rapidly rotate the holder to thereby trip the movable contact.
摘要翻译： 一种用于断路器的切换机构包括框架; 可旋转地支撑在框架上的闩锁; 可旋转地支撑在框架上并具有可动触头的支架; 手柄杆通过杆轴摇摆地支撑在框架上; 由通过肘杆旋转地连接的第一和第二连杆形成的肘节连杆; 和开关弹簧。 第一连杆的自由端可旋转地连接到闩锁，并且第二连杆的自由端可旋转地连接到保持器。 第一和第二连杆通常彼此重叠以减小肘节连杆的移动范围以使切换机构小型化。 切换弹簧位于肘节轴和手柄杆之间，在相对于杠杆轴的相对于切换手柄的一侧。 当手柄杆移动时，切换弹簧相对于肘节连杆的操作力反转，以便可动触头旋转支架，当闩锁脱开时，开关弹簧相对于肘节连杆的操作力反转 以快速旋转保持器，从而跳动可动触点。
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