| 摘要 |
<p>PURPOSE:To constitute an electromagnetic device whose capacity is different from an electromagnetic device in which an O-shaped yoke core only is used, by constituting said device by using a nearly O-shaped yoke core, a nearly I-shaped exciting core, and a coil. CONSTITUTION:The following are provided; a nearly O-shaped yoke core 1 on the surface of which notch parts 4 for diving the core into two parts are formed, a nearly I-shaped exciting core 2 inserted in the inside of the yoke core 1, and a coil 3 wound around the exciting core 2 inside the yoke core 1. In this constitution, when the coil 3 is excited, a magnetic flux flows through a closed magnetic path formed by the exciting core 2, the yoke core 1, and gaps on both ends of the exciting core 2. Said magnetic flux does not leak outward, and the temperature rise is little, so that miniaturization and high density mounting can be realized. By combining the yoke core 1 and the I- shaped exciting core segment, an electromagnetic device whose capacity is different from an electromagnetic device in which the O-shaped yoke core 1 only is used can be constituted.</p> |
