公开(公告)号：US06838960B2

公开(公告)日：2005-01-04

申请号：US10360621

申请日：2003-02-10

申请人： Koji Asakawa ,  Hisao Kawato ,  Yasutoshi Ide ,  Hideto Yamagata ,  Akihiko Kohanawa

发明人： Koji Asakawa ,  Hisao Kawato ,  Yasutoshi Ide ,  Hideto Yamagata ,  Akihiko Kohanawa

IPC分类号： H01H73/20 ,  H01H9/02 ,  H01H71/02 ,  H02B1/04

CPC分类号： H01H9/0264 ,  H01H71/0228

摘要： A circuit breaker includes a molded case comprised of a case and a cover. Terminal parts to be connected to a power supply and a load are provided respectively at front and rear ends of the molded case. A control mechanism for switching a movable contact is disposed between the front and rear terminal parts. The cover is divided into three parts for covering the control mechanism and the terminal parts disposed at front and rear of the control mechanism, respectively. The front and rear parts of the cover covering the terminal parts are detachably mounted on the molded case as terminal covers.

公开(公告)号：US5569894A

公开(公告)日：1996-10-29

申请号：US441835

申请日：1995-05-16

申请人： Naoshi Uchida ,  Akihiko Kohanawa ,  Masao Miura ,  Jun Oyama ,  Koji Asakawa

发明人： Naoshi Uchida ,  Akihiko Kohanawa ,  Masao Miura ,  Jun Oyama ,  Koji Asakawa

IPC分类号： H01H9/36 ,  H01H9/30 ,  H01H9/34 ,  H01H9/44 ,  H01H73/18 ,  H01H33/53

CPC分类号： H01H9/342 ,  H01H9/446 ,  H01H2009/305 ,  H01H2009/343 ,  H01H9/302

摘要： An arc quenching device for a circuit breaker having a stationary contact member and a moving contact member includes a magnetic element formed of an arc quenching core and a base plate. The arc quenching core includes a back wall, and two side walls extending from lateral sides of the back wall. The base plate extends substantially perpendicularly from a lower side of the back wall in a direction as in the side walls, and is fixed to the stationary contact member. The base plate includes a U-shaped magnetic driving core situated near a stationary contact point and extending upwardly from the base plate to surround the stationary contact point, and an arc horn integrally formed with the base plate and obliquely extending toward the back wall from a portion near the stationary contact point. Arc formed between the stationary contact member and the moving contact member is moved by magnetic driving force formed by the magnetic driving core to the arc quenching core to be quenched therein through the arc horn.

摘要翻译： 一种具有固定接触构件和可移动接触构件的断路器的电弧熄弧装置包括由弧形淬火芯和基板形成的磁性元件。 电弧淬火芯包括后壁和从后壁的侧面延伸的两个侧壁。 基板沿着与侧壁相同的方向从后壁的下侧大致垂直地延伸，并且固定到固定接触构件。 基板包括位于固定接触点附近并且从基板向上延伸以围绕固定接触点的U形磁性驱动芯，以及与基板一体形成并且从后壁向后延伸的弧形喇叭 固定接触点附近的部分。 形成在固定接触构件和可动接触构件之间的电弧通过由磁性驱动芯形成的磁驱动力移动到弧形淬火芯，通过弧形喇叭被淬火。

公开(公告)号：US5886606A

公开(公告)日：1999-03-23

申请号：US748279

申请日：1996-11-13

申请人： Hiroaki Tosaka ,  Koji Nomura ,  Akihiko Kohanawa

发明人： Hiroaki Tosaka ,  Koji Nomura ,  Akihiko Kohanawa

IPC分类号： H01H71/12 ,  H01H9/00

CPC分类号： H01H71/125

摘要： In a circuit breaker, a power source current transformer (2) comprises: a secondary coil (6) arranged between two legs (1a and 1b) of a U-shaped part of a main circuit conductor (1), and an iron core (7) including an iron core leg (7a) which penetrates the secondary coil, and yokes (7b and 7b) which embrace the two legs (1a and 1b) of the U-shaped part of the main circuit conductor, the power source current transform supporting the current detecting means. As a result, the power source current transformer (2) is arranged compact inside the main circuit conductor (1), and the main circuit current, when flowing in each of the legs (1a and 1b) of the U-shaped part, produces the magnetic flux output acting on the secondary coil. Hence, even if the main circuit current is small, a great power source output can be obtained.

摘要翻译： 在断路器中，电源电流互感器（2）包括：设置在主电路导体（1）的U形部分的两个支腿（1a和1b）之间的次级线圈（6）和铁芯 7）包括穿过次级线圈的铁芯脚（7a）和包围主电路导体的U形部分的两个腿（1a和1b）的轭（7b和7b），电源电流变换 支持电流检测装置。 结果，电源电流互感器（2）在主电路导体（1）的内部紧凑地配置，主电路电流在U字形部分的每个腿（1a和1b）中流动时产生 作用在次级线圈上的磁通量输出。 因此，即使主电路电流小，也可以获得大的电源输出。

公开(公告)号：US4935589A

公开(公告)日：1990-06-19

申请号：US270329

申请日：1988-11-14

申请人： Akihiko Kohanawa

发明人： Akihiko Kohanawa

IPC分类号： H01H9/34 ,  H01H9/00 ,  H01H73/18

CPC分类号： H01H9/362 ,  H01H73/18 ,  H01H71/0207 ,  H01H9/0072

摘要： There is disclosed an arc extinction chamber unit for assembly into a multipolar circuit breaker. This chamber unit is composed of arc extinction chambers provided one for each pole, and coupling arms for connecting the chambers to each other. The chambers and coupling arms are molded into one unitary body. Each chamber can contain a generated arc gas pressure, preventing the arc gas pressure being vented to the outer box of the circuit breaker, thereby reducing the stress on the outer box. The arc extinction chamber unit includes restraining arms which connect to the walls of the circuit breaker outer box, further strengthening the box. Each arc extinction chamber contains grooves in the inner wall for easy insertion of grids. The grids are configured with V-shaped indentations. The integral construction of the chamber units and coupling arms provides for assembly into the circuit breaker in a single assembly step.

摘要翻译： 公开了用于组装成多极断路器的消弧室单元。 该室单元由为每个极设置的消弧室和用于将腔室彼此连接的联接臂组成。 腔室和联接臂被模制成一个整体。 每个室可以包含产生的电弧气体压力，防止电弧气体压力泄放到断路器的外箱，从而减小外箱上的应力。 电弧消光室单元包括连接到断路器外箱壁的限制臂，进一步加强箱体。 每个灭弧室在内壁上都有凹槽，便于插入网格。 网格配置有V形凹痕。 室单元和联接臂的整体构造提供了在单个组装步骤中组装到断路器中。

公开(公告)号：US4635012A

公开(公告)日：1987-01-06

申请号：US763814

申请日：1985-08-08

申请人： Akihiko Kohanawa ,  Kiyoshi Kandatsu

发明人： Akihiko Kohanawa ,  Kiyoshi Kandatsu

IPC分类号： H01H73/02 ,  H01H1/22 ,  H01H1/58 ,  H01H9/38 ,  H01H71/08 ,  H01H75/00 ,  H01H77/00 ,  H01H83/00

CPC分类号： H01H71/08 ,  H01H1/226 ,  H01H1/5833 ,  H01H2001/5838 ,  H01H9/383 ,  Y10T403/32918

摘要： Individual movable contactors of a circuit breaker are made up of a pair of conductors. The first conductor has one end bifurcated to form a pair of legs separated by a slit. At the open end each leg has a curved inner portion the opposed curved portions of the two legs defining a receptor space which is substantially circular in cross section. The second conductor has one end whose cross section is substantially circular and which fits within the receptor space and makes a good slidable contact therewith, and the other end which supports the main contact. Provision is made for rotating the second conductor about its circular end for opening or closing connection to the main contact.

摘要翻译： 断路器的单独的可动接触器由一对导体组成。 第一导体的一端分叉形成由狭缝分开的一对腿。 在开口端，每个腿部具有弯曲的内部部分，两个腿部的相对的弯曲部分限定了横截面基本上圆形的受体空间。 第二导体的一端的横截面基本上是圆形的，并且它的一端与受体空间相配合并且与其可滑动地接触，另一端支撑着主接触。 提供了使第二导体绕其圆形端旋转以打开或关闭与主触点的连接。