Charge output element and piezoelectric acceleration sensor

Abstract

The disclosure provides a charge output element and a piezoelectric acceleration sensor. The charge output element includes: a base including a supporting member and a connecting member disposed on the supporting member; a flexible member sleeved on the connecting member for bending deformation; a mass block assembly disposed around a circumference of the connecting member, wherein the mass block assembly is coupled to the connecting member by the flexible member and suspended above the supporting member to drive the flexible member to be bent and deformed in an extending direction of the connecting member; and a piezoelectric element attached to a surface of the flexible member away from the supporting member and disposed to move along with movement of the flexible member. Therefore, the sensitivity of the charge output element can be improved while the sensitivity of the charge output element is not susceptible to the strain of the base.

Dependencies are inferred from the claim text.