Piezoelectric driving mechanism

A piezoelectric driving mechanism, comprising:

• a fixed assembly;
• a movable part, configured to move relative to the fixed assembly;
• and
• a driving module, configured to drive the movable part to move relative to the fixed assembly;
• wherein when viewed in a first axis, the driving module is disposed between the fixed assembly and the movable part;
• the driving module includes a first elastic member and a piezoelectric assembly;
• the driving module further includes a driving member fixedly disposed on the first elastic member;
• the piezoelectric assembly is configured to drive the first elastic member to deform, so as to drive the driving member to move relative to the fixed assembly;
• the driving member is configured to drive the movable part to move relative to the fixed assembly along the first axis;
• when viewed along a second axis, the first elastic member has a rectangular structure;
• the first axis is perpendicular to the second axis;
• the first elastic member has a first side arm and a second side arm;
• the first side arm and the second side arm extend along the first axis;
• the driving member is fixedly disposed on the first side arm;
• the first elastic member further has a third side arm and a fourth side arm connected between the first side arm and the second side arm;
• the third side arm and the fourth side arm extend along a third axis;
• the third axis is perpendicular to the first axis and the second axis.