| 摘要 |
The piezoelectric motor (6) comprises a stator (1) and an armature (4) forming a gap (7), in addition to a piezoelectric transformer (3) that is connected to the stator (1) or the armature, said transformer forming a resonator (1,3; 4,3) together with the stator (1) or the armature (4). The resonator (1,3; 4,3) can be excited in a main direction of vibration (H), wherein the stator (1) has a working surface (l a; 4a) facing the armature (4) or the armature (4) has a working surface (l a; 4a) facing the stator (1). The stator (1) or the armature (4) comprises an elastic forward feed element (5) extending at an angle (<) relative to the main direction of vibration (H), said element bridging over the gap (7) between the stator (1) and the armature (4) in such a way that the forward feed element (5) is located at least temporarily on the working surface (la;4a). The forward feed element (5) has a first partial section (5c) and a second partial section (5d), wherein said partial sections (5c,5d) have a different resonance frequency. |
