Piezo-electric device type actuator

Details Piezo-electric device type actuator Piezo-electric device type actuator

1992-09-30

1994-02-22

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

H01L 4108

Patent

active

052890740

ABSTRACT:
A piezo-electric device type actuator of the invention is less susceptible to damage in the to joint portions of between a laminated piezo-electric device and a base member or a movable block. The piezo-electric device type actuator includes a laminated piezo-electric device having a plural number of piezo-electric ceramics laminated to a predetermined length; a stationary base member; a pair of resilient plates extended along opposite lateral side surfaces of the laminated piezo-electric device, respectively, with each plate welded at one end to the base member; and a movable block welded to the other end of each of the resilient plates while applying a predetermined compressive force to the laminated piezo-electric device. The laminated piezo-electric device is fixed to the base member and movable block by welding to provide bondage of high reliability between these parts.

REFERENCES:
patent: 5005994 (1991-04-01), Yano
patent: 5078520 (1992-01-01), Yano et al.
patent: 5092689 (1992-03-01), Yano

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