초록 ▼

The first embodiment of a piezo electric transducer shown in this application has a housing, an actuator, piezoelectric material, a first fixed contact and a second fixed contact. The actuator overlies the piezo-electric material and is attached to the inner surface of the housing. The piezoelectric

The first embodiment of a piezo electric transducer shown in this application has a housing, an actuator, piezoelectric material, a first fixed contact and a second fixed contact. The actuator overlies the piezo-electric material and is attached to the inner surface of the housing. The piezoelectric material overlies the spaced first and second fixed contacts whereby distortion of the piezoelectric material by the actuator causes a current to flow between the first and second fixed contacts. In the second embodiment the piezoelectric material is attached to the inner surface of the housing. In a variation of the first and second embodiments, the piezo electric material is sandwiched between first and second dome portions. The first dome portion is engaged to a first fixed contact and the second dome portion is engaged to a second fixed contact.

대표청구항 ▼

A piezoelectric transducer comprising an actuator, piezoelectric material, a housing, a movable contact, a first fixed contact and a second fixed contact, the housing having a top wall portion an inner surface, and a base portion, the base portion having first and second side edges, each of the side

A piezoelectric transducer comprising an actuator, piezoelectric material, a housing, a movable contact, a first fixed contact and a second fixed contact, the housing having a top wall portion an inner surface, and a base portion, the base portion having first and second side edges, each of the side edges having a wall extending therefrom, each wall having a pair of spaced parallel ribs, a slot formed proximate the base portion between each pair of ribs, the actuator has a pair of barrier portions from which a flexible arm extends, the inner surface of the top wall portion completely overlying actuator, the actuator overlying the piezo electric material and the piezoelectric material overlying the spaced first and second fixed contacts, the housing defining a cavity, the first and second contacts positioned in the cavity, the movable contact including a first dome portion and a second dome portion, the piezoelectric material sandwiched between and engaged to the first and second dome portions, the first dome portion engaged to the first fixed contact and the second dome portion engaged to the second fixed contact, one of the flexible arms of the actuator engaged with one of the slots formed proximate the base portion while the actuator bearing against the first dome portion whereby distortion of the piezoelectric material by the actuator causes a current to flow between the first and second fixed contacts.