| 摘要 |
<p>A polarized electromagnetic relay has two electromagnetic relay portions each constituted by a first yoke (5), second yoke (12), coil (7, 7'), movable core (9, 9'), card (8, 8'), and respective contact portions (2, 2'; 3, 3'; 4, 4'). The first yoke (5) and the second yoke (12) are used to direct a magnetic flux caused by a permanent magnet (10) in the movable core (9; 9') in the same direction as a magnetic flux caused by the magnetization of the coil (7; 7'), and thus electrical power flowing in the magnetized coil (7, 7') can be small, or an area occupied by the coil (7, 7') can be small. Therefore, a small size and economical polarized electromagnetic relay having two groups of electromagnetic relays can be provided, and a stable operation regardless the states of magnetization or non-magnetization of one or both coils (7, 7') of the two electromagnetic relay portions can be realized. <IMAGE> <IMAGE></p> |
