公开(公告)号：EP0872868A2

公开(公告)日：1998-10-21

申请号：EP98106475.1

申请日：1998-04-08

申请人： EATON CORPORATION

发明人： Kolberg, Kenneth Daniel ,  Morris, Kimberley ,  Parks, David Allen

IPC分类号： H01H71/74

CPC分类号： H01H71/7463

摘要： A solenoid type magnetic trip assembly (22) for a molded case circuit breaker (10) includes an armature (80) biased against an adjustable stop (138) by a tension spring (116) to set the initial gap (220) for the magnetic trip, so that the spring bias remains constant for the full range of the initial gap (220). The armature (80) includes an elongated armature element (82) mounted by a frame (84) to slide longitudinally along a pair of guide rails (122). The frame (84) defines a trip surface (104) axially aligned with the elongated armature element (82) which engages a trip arm (160) on a trip bar (24) to trip the circuit breaker (10) in response to a predetermined level of overcurrent. A bimetal (168) providing a thermal trip function is cantilevered from a support spaced from the trip bar (24) by the armature (80), but has a terminal portion (174) at the free end (172) projecting toward the trip bar (24) and through which the elongated armature element (82) of the armature (80) extends. A radially enlarged slug (88) on the free end of the elongated armature element (82) of the armature (80) is subjected to a magnetic force opposite to the force generated by load current tending to pull the armature (80) into the solenoid coil (74). This opposing force increases as the initial gap (220) increases, placing the slug (88) closer to the magnetic frame (78), so that a greater range of trip currents can be selected despite limited room for armature travel. A gap (228) in the magnetic frame (78) prevents short circuiting the magnetic field where the few turns of a large gauge coil wire produce an unsymmetrical winding. A magnetic shield (198) protects the bimetal (168) from deformation during high current short circuits. A non-magnetic spring clip (230) firmly retains the magnetic frame (78) in a recess (232) in the circuit breaker housing (12).

摘要翻译： 用于模制外壳断路器（10）的螺线管型磁跳闸组件（22）包括通过拉伸弹簧（116）偏置在可调节止动件（138）上的电枢（80），以设定用于磁性的初始间隙（220） 跳闸，使得弹簧偏置在初始间隙（220）的全范围内保持恒定。 电枢（80）包括由框架（84）安装以沿着一对导轨（122）纵向滑动的细长电枢元件（82）。 框架（84）限定与细长的电枢元件（82）轴向对准的跳闸表面（104），其接合跳闸杆（24）上的跳闸臂（160），以响应于预定的跳闸 过电流。 提供热脱扣功能的双金属（168）从由电枢（80）与跳闸杆（24）间隔开的支架悬臂，但是在自由端（172）处的端子部分（174）朝着跳闸杆 （24），并且电枢（80）的细长电枢元件（82）延伸穿过该电枢。 在电枢（80）的细长电枢元件（82）的自由端上的径向扩大的块塞（88）经受与由负载电流产生的力相反的磁力，该负载电流倾向于将电枢（80）拉入螺线管 线圈（74）。 这种相反的力随着初始间隙（220）增加而增加，使得塞子（88）更靠近磁性框架（78），使得尽管有限的电枢行程空间可以选择更大范围的跳闸电流。 磁性框架（78）中的间隙（228）防止了大规格线圈线的几匝产生不对称绕组的磁场的短路。 磁屏蔽（198）在高电流短路期间保护双金属（168）不变形。 非磁性弹簧夹（230）将磁性框架（78）牢固地保持在断路器壳体（12）中的凹部（232）中。

公开(公告)号：EP0793161B1

公开(公告)日：2002-07-17

申请号：EP97102691.9

申请日：1997-02-19

申请人： EATON CORPORATION

发明人： Kolberg, Kenneth Daniel ,  Parks, David Allen ,  Morris, Kimberley ,  Schachner, James Robert

IPC分类号： G05G5/06

CPC分类号： H01H71/74 ,  G05G5/06 ,  H01H19/11 ,  H01H2071/7481 ,  Y10T16/506 ,  Y10T16/54038 ,  Y10T74/2084

公开(公告)号：EP0872868A3

公开(公告)日：1999-11-10

申请号：EP98106475.1

申请日：1998-04-08

申请人： EATON CORPORATION

发明人： Kolberg, Kenneth Daniel ,  Morris, Kimberley ,  Parks, David Allen

IPC分类号： H01H71/74

CPC分类号： H01H71/7463

摘要： A solenoid type magnetic trip assembly (22) for a molded case circuit breaker (10) includes an armature (80) biased against an adjustable stop (138) by a tension spring (116) to set the initial gap (220) for the magnetic trip, so that the spring bias remains constant for the full range of the initial gap (220). The armature (80) includes an elongated armature element (82) mounted by a frame (84) to slide longitudinally along a pair of guide rails (122). The frame (84) defines a trip surface (104) axially aligned with the elongated armature element (82) which engages a trip arm (160) on a trip bar (24) to trip the circuit breaker (10) in response to a predetermined level of overcurrent. A bimetal (168) providing a thermal trip function is cantilevered from a support spaced from the trip bar (24) by the armature (80), but has a terminal portion (174) at the free end (172) projecting toward the trip bar (24) and through which the elongated armature element (82) of the armature (80) extends. A radially enlarged slug (88) on the free end of the elongated armature element (82) of the armature (80) is subjected to a magnetic force opposite to the force generated by load current tending to pull the armature (80) into the solenoid coil (74). This opposing force increases as the initial gap (220) increases, placing the slug (88) closer to the magnetic frame (78), so that a greater range of trip currents can be selected despite limited room for armature travel. A gap (228) in the magnetic frame (78) prevents short circuiting the magnetic field where the few turns of a large gauge coil wire produce an unsymmetrical winding. A magnetic shield (198) protects the bimetal (168) from deformation during high current short circuits. A non-magnetic spring clip (230) firmly retains the magnetic frame (78) in a recess (232) in the circuit breaker housing (12).

公开(公告)号：EP0793161A1

公开(公告)日：1997-09-03

申请号：EP97102691.9

申请日：1997-02-19

申请人： EATON CORPORATION

发明人： Kolberg, Kenneth Daniel ,  Parks, David Allen ,  Morris, Kimberley ,  Schachner, James Robert

IPC分类号： G05G5/06

CPC分类号： H01H71/74 ,  G05G5/06 ,  H01H19/11 ,  H01H2071/7481 ,  Y10T16/506 ,  Y10T16/54038 ,  Y10T74/2084

摘要： An adjusting knob assembly (1) includes a knob member (3) having a knob (7) and an axially extending shaft (15). A support bracket (5) has an aperture (23) defined in part by a gapped ring section (25) formed by a pair confronting arcuate fingers (27). The shaft (15) and the aperture have complimentary, longitudinally extending, circumferentially distributed flat surfaces (17; 33, 35), which provide discrete angular positions for the shaft (15) when the complimentary flat surfaces (17; 33, 35) are in register. Preferably, the gap (29) between the confronting fingers (27) is sized, and the arcuate fingers (27) have a compliance sufficient that the shaft (15) may be passed laterally through the gap (29) and snapped into the aperture (23). Any one of a plurality of interchangeable cam members (43) can be press fit on to the end of the shaft (15).

摘要翻译： 调节旋钮组件（1）包括具有旋钮（7）和轴向延伸轴（15）的旋钮构件（3）。 支撑架（5）具有一个孔（23），该孔（23）部分地由一对间隔的环形部分（25）限定，该环形部分由一对相对的弓形指状物（27）形成。 轴（15）和孔具有互补的纵向延伸的周向分布的平坦表面（17; 33,35），当互补的平坦表面（17; 33,35）为 在注册。 优选地，面对的指状件（27）之间的间隙（29）的尺寸被确定，并且弓形指状件（27）具有足够的顺应性，使得轴（15）可以横向穿过间隙（29）并且卡扣到孔 23）。 多个可互换的凸轮构件（43）中的任何一个都可以压配到轴（15）的端部上。