Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1984-09-04
1987-03-31
Budd, Mark O.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
200181, H01L 4108
Patent
active
046545557
ABSTRACT:
This multi pole relay includes: a base plate; several bimorphic elements each of elongate plate shape and including a central electrode of elongate plate shape, a pair of piezoelectric members of elongate thin plate shape arranged on opposite sides of the central electrode, and a pair of surface electrodes arranged on the outer surfaces of the pair of piezoelectric members; a means for fixedly mounting the one ends of the bimorphic elements to the base plate with their other ends free; and, for each one of the bimorphic elements: a fixed contact mounted to the base plate opposing the free end of that one of the bimorphic elements; a flexible element, one end of which is mounted to the base plate, and the other free end of which is interposed between the free end of that one of the bimorphic elements and the fixed contact; and a movable contact mounted on the free end of the flexible element on its side towards the fixed contact and opposing the fixed contact. Thereby, the relay may be made very compact and of very low profile, and accordingly is suitable for fitting to a printed circuit board in conjunction with integrated circuits.
REFERENCES:
patent: 2166763 (1939-07-01), Mason
patent: 2835761 (1958-05-01), Crownover
patent: 3110824 (1963-11-01), Flanagan
patent: 4093883 (1978-06-01), Yammamoto
patent: 4112279 (1978-09-01), Brohard
patent: 4450375 (1984-05-01), Siegal
patent: 4473859 (1984-09-01), Stone et al.
Ohba Masatoshi
Sato Ryuichi
Taniguchi Tsutomu
Budd Mark O.
Omron Tateisi Electronics Co.
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