Piezoelectric laminate stack

Details Piezoelectric laminate stack Piezoelectric laminate stack

1986-11-25

1988-06-21

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310365, 310366, 29 2535, H01L 4108

Patent

active

047527129

ABSTRACT:
A piezoelectric laminate stack having a plurality of piezoelectric plates manufactured of a piezoelectric element, and a plurality of metal plates. The metal plates have approximately the same shape as the piezoelectric plates, and are formed with at least two projections, respectively, on the periphery thereof. The length of the projections is greater than the thickness of the piezoelectric plates. The piezoelectric plates and the metal plates are alternately stacked. The projections of a first group of metal plates are located at angular positions different to angular positions of the projections of a second group of metal plates. The projections are bent in a direction along the axis of the laminate stack in such a manner that the first group of metal plates are electrically connected together and the second group of the metal plates are electrically connected together.

REFERENCES:
patent: 3501099 (1970-03-01), Benson
patent: 4011474 (1977-03-01), O'Neill
patent: 4384230 (1983-05-01), Wisner
patent: 4460842 (1984-07-01), Waanders et al.
patent: 4471256 (1911-09-01), Igashra et al.
patent: 4499566 (1985-02-01), Abbott
Double Mount for Each Electrode of Crystal to Prevent Failure, by E. C. Thompson, Western Electric Technical Digest, No. 26, Apr. 1972, pp. 59 and 60.

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