| 摘要 |
<p>An electromagnetic contactor has a case (1, 26) including an electromagnet, a movable armature (90), and contact means (11, 12) adapted to close and open in response to a motion of the armature. The electromagnet comprises a substantially U-shaped iron core (30) composed of a first and a second core part (25, 24) defining a main leg and a yoke (25B), and a coil (8) wound on a coil bobbin (27), said main leg extending through an opening of said coil bobbin and said main leg and said yoke each defining a respective pole face adapted to cooperate with said armature. The first core part (25) is substantially U-shaped and has an upper arm (25A) inserted into said opening of the coil bobbin (27), and a lower arm (25B) forming said yoke. The second core part (24) has a first leg which is also inserted into said opening and held in contact with said upper arm therein, and a bent second leg which forms the pole face of said main leg. This structure allows an easy manufacturing of an iron core (30) having sufficiently large areas of both the cross-section of the main leg and the pole face of the main leg. <IMAGE></p> |
