| 摘要 |
<p>The invention concerns an electromagnetic contactor element which makes it possible to connect or commutate various electric apparatus and devices and makes it possible e.g. to switch on, start and control the operation of asynchronous electromotors, for which several contactors and a time-lag relay are normally required. The electromagnetic contactor element in accordance with the invention is basically composed of three spatially and functionally separated parts, namely a driving part (A), a contact part (B) and a part (C) which can contain an electronic circuit, and all three parts are covered by a common cover (2). Two coils (7, 7') are installed in the driving part (A) which have a common moving core (8), while a fixed core (6) is installed in the casing (1), and a fixed core (6') in the cover (2), whereby a longitudinally moving steel support (9) is linked with said moving core (8) and over a transmission lever (10) also with a longitudinally moving support (18) of contacts which lies in grooves (20). Springs (19) are inserted in such a way as to hold moving contacts (17) in the contact part (B) and the common core (8) in the driving part (A) in a neutral position.</p> |
