【摘要】 介绍了一种新型结构的永磁机构——非平面接触永磁机构的基本结构和工作原理,这种结构的永磁机构能产生轴向高梯度磁场,可以大幅提高线圈磁场对动铁心动态反应能力,达到提高动铁心初始运动速度的目的;同时介绍了双动式真空灭弧室的基本动作原理及其与普通真空灭弧室的区别,对这2种技术的组合、匹配方案进行了分析研究,提出了一种能大幅提高真空断路器性能的全新设计思路,并在新一代真空断路器研发中予以应用。更多还原

【Abstract】 The basic structure and working principle of a new type of permanent magnetic actuator,namely the non-plane contact permanent magnetic actuator,is presented. Such a permanent magnetic structure can produce magnetic field with high axial gradient,so the dynamic response ability of coil magnetic field to moving iron-core can be remarkably improved to achieve the aim of increasing the initial velocity of the moving iron-core; meanwhile,the differences between basic working principle of double-acting vacuum interrupter and that of common vacuum interrupters are described,then a scheme to combine and match these two technologies are analyzed and researched; and then a brand new design idea which can greatly improving the performance of vacuum circuit breaker is proposed and applied in the development of a new generation of vacuum circuit breaker.更多还原