公开(公告)号：US4024487A

公开(公告)日：1977-05-17

申请号：US656952

申请日：1976-02-10

申请人： Fritz Krasser ,  Josef Peter ,  Rainer Volkl

发明人： Fritz Krasser ,  Josef Peter ,  Rainer Volkl

IPC分类号： H01H73/30 ,  H01H71/10 ,  H01H71/16

CPC分类号： H01H71/1027 ,  H01H71/162

摘要： A multipole excess current switch composed of a plurality of single pole excess current switches each arranged to be placed in series in a respective circuit to be protected, each single pole switch including a U-shaped bimetallic member connected to conduct the current through such circuit and to undergo a change in shape when conducting an excess current, and a spring loaded switching arrangement arranged to open the switch in response to movement of the bimetallic member, and the switching arrangements of all of the single pole switches being mechanically connected to trigger operation of the spring loaded switching arrangements of the other single pole switches when one of the switches opens in response to an excess current through its associated circuit. Advantageously, the U-shaped bimetallic member is composed of a plurality of bimetallic strips disposed adjacent one another, but separated from one another by insulating material, with each strip being provided with a slot that divides it into two legs and the strips being interconnected to place all of the legs of the several strips in series, thereby establishing a high resistance path that makes the bimetallic member responsive to low current levels.

摘要翻译： 一种由多个单极过电流开关组成的多极过电流开关，每个单极过电流开关被布置成串联地放置在要保护的相应电路中，每个单极开关包括连接以将电流传导通过这种电路的U形双金属构件， 在进行过电流时经受形状变化;以及弹簧加载切换装置，布置成响应于双金属构件的移动而打开开关，并且所有单极开关的开关装置机械地连接以触发操作 当其中一个开关响应于通过其相关联的电路的过量电流而打开时，另一个单极开关的弹簧加载的开关装置。 有利地，U形双金属构件由彼此相邻布置但是通过绝缘材料彼此分离的多个双金属条构成，每个条带设置有将其分成两个腿的狭槽，并且条被互连到 将多个条的所有腿串联，从而建立高电阻路径，使得双金属构件响应于低电流水平。

公开(公告)号：US4236136A

公开(公告)日：1980-11-25

申请号：US970176

申请日：1978-12-18

申请人： Konrad Heydner ,  Josef Peter ,  Rainer Volkl

发明人： Konrad Heydner ,  Josef Peter ,  Rainer Volkl

IPC分类号： H01H37/52 ,  H01H37/56 ,  H01H71/14 ,  H01H71/16

CPC分类号： H01H71/161

摘要： An overload circuit breaker has a housing and a tripping device supported in the housing and having a helically wound, current-carrying bimetal strip composed of two face-to-face arranged metal components situated, respectively, at the inside and at the outside of the bimetal strip. The bimetal strip has a tripping portion which executes a tripping motion as the bimetal strip undergoes deformation under the effect of heat generated by an excess current flowing through the bimetal strip. The bimetal strip is formed of two electrically serially connected, oppositely wound bimetal helices each having an outer end constituting the opposite ends of the bimetal strip. The bimetal strip is affixed to the housing at both of its opposite ends. Further, the bimetal helices each have an inner end connected to one another by a coupling part. The coupling part constitutes the tripping portion of the bimetal strip.

摘要翻译： 过载断路器具有壳体和支撑在壳体中的脱扣装置，并且具有螺旋缠绕的载流双金属带，其由分别位于内部和外部的两个面对面排列的金属部件组成 双金属条。 双金属带具有跳闸部分，当双金属带在流过双金属带的过量电流产生的热的作用下经历变形时，执行跳闸运动。 双金属条由两个电串联连接的相对卷绕的双金属螺旋形成，每个双金属螺旋具有构成双金属带的相对端的外端。 双金属条在其两端处固定到外壳上。 此外，双金属螺旋各自具有通过联接部分彼此连接的内端。 联接部件构成双金属带的脱扣部分。