| 摘要 |
To reduce the cost of providing a multiple relay arrangement, the arrangement has been constructed with a common fixed part (6) having permanent magnets (7), a common movable part (10) having permanent magnets (11), and fixed coils (9) having magnetically actuable movable cores (8) connected to a respective contact means (12). By connecting the coils to a source of electric current, the magnetically actuable cores can be caused to move in one or the other direction, depending on the direction of the current. When wishing to establish an electrical contact through the coupling means (12) of the multiple relay arrangement, current is passed through the coil (9') in one direction and through the remaining coils (9) in the opposite direction. In the contact making state of the arrangement, the core (8') will be repelled by the permanent magnet (7') on the fixed part (6) and attracted by the permanent magnet (11') on the movable part (10) during its movement. The coupling means (12') connected to the core (8') can then be used to connect together telecommunications conductors for instance. Remaining cores (8) are attracted by the fixed permanent magnets (7) and not moved, although the part (10) will be moved away from the fixed part (6) by virtue of the repulsion force acting between the cores (8) and the magnets (11).
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