Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1992-11-16
1993-08-24
Budd, Mark O.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310366, H01L 4108
Patent
active
052392244
ABSTRACT:
A piezoelectric actuator having a significantly strong coupling between each of its external electrodes and the matching flexible cable. This piezoelectric actuator comprises a ceramic layer body made of a large number of piezoelectric ceramic layers stacked to a predetermined depth; a plurality of internal electrodes sandwiched between the ceramic layers; a pair of external electrodes, the first electrode connecting every other one of the internal electrodes, the second electrode connecting every second internal electrode not connected to the first external electrode; and a pair of flexible cables connected to edges of the external electrodes. The external electrodes are soldered to the flexible cables. Upon soldering, a metal intervening member is inserted in a hole made on the coupling part of each flexible cable. Soldering the intervening member provides a strongly soldered coupling between external electrode and flexible cable.
REFERENCES:
patent: 5005994 (1991-04-01), Yano
patent: 5078520 (1992-01-01), Yano et al.
patent: 5092689 (1992-03-01), Yano
Kimura Daisuke
Yamaki Shyuichi
Budd Mark O.
Fujitsu Limited
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