PIEZOELECTRIC VIBRATOR UNIT, AND PIEZOELECTRIC VIBRATOR UNIT CASE MEMBER

摘要

A piezoelectric vibrator unit which stably holds a piezoelectric vibrator and suppresses occurrence of an abnormal noise, and a case member of the piezoelectric vibrator unit. The piezoelectric vibrator unit (U) is composed of the piezoelectric vibrator (1), a first supporting member (4) provided with a surface part (4a) opposed to the piezoelectric vibrator (1) in the thickness direction, and a second supporting member (6) which is fixed to the first supporting member (4) and is provided with a surface part (6a) opposed to a conductive plate-like body (2) in the thickness direction. The piezoelectric vibrator unit (U) sandwiches and holdsthe piezoelectric vibrator (1) and the conductive plate-like body (2) between the surface part (4a) of the first supporting member (4) and the surface part (6a) of the second supporting member (6) in the thickness direction. At the surface part (4a) of the first supporting member (4), a notched part (7) is formed and in the area of the notched part (7), a section where the piezoelectric vibrator (1) and the surface part (4a) are in a non-contact state is provided.