超薄微型断路器

Ultrathin minitype breaker

Abstract

The invention discloses an ultrathin minitype breaker, which comprises an outer shell, an operating mechanism, a contact mechanism, an overcurrent protection mechanism, a short circuit protection mechanism, an arc extinguishing mechanism and a fastener. The short circuit protection mechanism comprises a magnet yoke, a coil, a coil shell, a movable iron core, a static iron core, an iron core spring and a push rod. The magnet yoke is made of a composite copper steel material, a side corner formed by bending a long piece corner close to the lower end of an arcing shield is welded with one end of the coil by spot welding, and the other end of the coil is connected with a static connecting plate through a flexible lead. A plurality of single-pole ultrathin minitype breakers are integrated through a handle and a lock catch in the operating mechanism to form a multipole ultrathin minitype breaker. The ultrathin minitype breaker has the advantages of having the thickness of only 9mm which is half that of a traditional small breaker, breaking through the traditional design concept, saving cost due to the fact that a distribution box occupies less space due to an ultra-small size of the breaker, and having good performance.
本发明公开一种超薄微型断路器,包括外壳、操动机构、接触机构、过流保护机构、短路保护机构、灭弧机构和卡扣,短路保护机构包括磁轭、线圈、线圈壳、动铁芯、静铁芯、铁芯弹簧、推杆,磁轭由复铜钢材料做成,其靠灭弧罩下端长片角折弯成形的边角与线圈一端头通过点焊焊接在一起,线圈另一端通过软导线与静接线板连接。多个单极超薄微型断路器通过手柄,操动机构中的锁扣连接为一体,构成多极超薄微型断路器。本发明的优点是只有9mm厚度,是传统小型断路器的一半,突破传统设计理念,超小体积减小了配电箱占用空间,节约成本,且性能优异。

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