| 摘要 |
PROBLEM TO BE SOLVED: To provide a piezoelectric drive latching relay having a liquid metal contact. SOLUTION: The electric relay using conductive liquid in a switching mechanism has a pair of switching contacts 118, 120 fitted to a free end of a piezoelectric actuator 110 or a switch bar 112 arranged between a pair of fixed electric contact pads 114, 116. The surface of each contact supports droplets of the conductive liquid 122, 124 of liquid metals or the like, and the piezoelectric actuator 110 is biased to push or pull the switch bar 112 to move the pair of switching contacts and close a gap between one of the fixed contact pads 114 and one of the switching contacts 118, which coalesces the droplets of the conductive liquid 122 to form an electric circuit, and at the same time, a gap between the other fixed contact pad 116 and the other switching contact 120 is enlarged, which separates the droplets of the conductive liquid 124 to open the electric circuit. COPYRIGHT: (C)2005,JPO&NCIPI
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