ULTRASONIC TRANSDUCER

To provide an ultrasonic transducer in which contact of members connecting an electrode of a piezoelectric element and a terminal of a case can be prevented.SOLUTION: An ultrasonic transducer 10 comprises: a piezoelectric element 21 including a first electrode 25 on a first surface 23 and a second electrode 26 on a second surface 24; a tabular member 22 electrically connected to the second electrode 26; a first terminal portion 44 and a second terminal portion 45 provided in a case 40; a first connection member 50 electrically connecting the first electrode 25 and the first terminal portion 44; and a second connection member 60 electrically connecting the second electrode 26 and the second terminal portion 45. The tabular member 22 includes a contact point portion 27 protruding to outside from an outer edge of the second surface 24 and opposing the second terminal portion 45. The first connection member 50 can be elastically contacted to the first electrode 25 and the first terminal portion 44. The second connection member 60 is formed in a cylindrical shape enclosing an outer peripheral side of the first connection member 50 while separating from the first connection member 50 and can come in elastic contact with the contact portion 27 and the second terminal portion 45.SELECTED DRAWING: Figure 1 【課題】圧電素子の電極とケースの端子とを接続する部材同士の接触を防ぐことが可能な超音波トランスデューサを提供する。【解決手段】超音波トランスデューサ１０は、第一面２３に第一電極２５、第二面２４に第二電極２６を有する圧電素子２１と、第二電極２６に電気的に接続される板状部材２２と、ケース４０に設けられた第一端子部４４及び第二端子部４５と、第一電極２５と第一端子部４４とを電気的に接続する第一接続部材５０と、第二電極２６と第二端子部４５とを電気的に接続する第二接続部材６０と、を備える。板状部材２２は、第二面２４の外縁よりも外側に突出し第二端子部４５と対向する接点部２７を有する。第一接続部材５０は、第一電極２５及び第一端子部４４に弾性的に接触可能である。第二接続部材６０は、第一接続部材５０から離れた状態で第一接続部材５０の外周側を囲う筒状であり、接点部２７及び第二端子部４５に弾性的に接触可能である。【選択図】図１