| 摘要 |
A sealed electromagnetic relay in which insulating resin is so injection-molded on the surface of a coil block (10) that a part of the coil (12), which is wound around the iron core on the opposed side to a contact make-and-break mechanism, is exposed. The force applied to the coil (12) by the resin pressure during injection molding is relaxed in the exposed part (18) and gas generated from the coil (12), etc. after injection-molding is evolved from the exposed part (18). Therefore, the coil block can be easily covered with the insulating resin, and further, there is no possibility that the windings of the coil are broken when sealing and the covering resin is cracked after sealing. <IMAGE> |
