Piezoelectric motor, and camera module using same
AssigneeNingbo Sunny Opotech Co., Ltd.
InventorsKai Chen, Wengui DENG
Life of this patent
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Abstract
The present invention discloses a piezoelectric motor, which comprises a base, a movable assembly, which is movably connected above the base, and a piezoelectric actuator, which abuts against the movable assembly. The movable assembly is supported on the fixing assembly by a plurality of balls arranged on one side of the movable assembly, and the plurality of balls form at least one supporting plane. The drive end of the piezoelectric actuator acts on the supporting plane formed by the balls, thereby reducing the tilting moment of the piezoelectric actuator to the movable assembly.
Claims22
1-43. (canceled)
A piezoelectric motor, comprising:
- a fixing assembly;
- a movable assembly connected movably to the fixing assembly;
- a piezoelectric actuator abutting against the movable assembly, wherein the movable assembly is supported on the fixing assembly by a plurality of balls arranged on one side of the movable assembly, wherein the plurality of balls form at least one support plane and a driving end of the piezoelectric actuator acts on the support plane.
A piezoelectric motor, comprising:
- a fixing assembly;
- a movable assembly connected movably to the fixing assembly;
- a piezoelectric actuator abutting against the movable assembly, wherein the piezoelectric actuator comprises a piezoelectric vibrator and a piezoelectric friction head disposed on a side of the piezoelectric vibrator close to the movable assembly;
- an elastic support portion for generating a potential energy perpendicular to a driving direction of the piezoelectric actuator and a potential energy along a height direction of the movable assembly;
- and
- a circuit board connected to a side of the piezoelectric vibrator opposite to the piezoelectric friction head and the elastic support portion is partially arranged on a side of the circuit board away from the piezoelectric vibrator.
The piezoelectric motor, as recited in claim 51, further comprising a friction plate fixedly connected to one side of the movable assembly and arranged parallel to one side of the piezoelectric vibrator and the piezoelectric friction head is located at a center of the friction plate.
A piezoelectric motor, comprising:
- a base;
- a movable assembly movably connected above the base;
- a piezoelectric actuator assembly abutting against the movable assembly;
- a housing connected fixedly to the base and having an accommodating space, wherein the movable assembly is located within the housing;
- a plurality of balls arranged between the housing and the movable assembly and between the base and the movable assembly, respectively;
- and
- an elastic support portion for generating a potential energy applied to the plurality of ball, so as to urge the plurality of balls toward the base and clamp the plurality of balls between the housing and the movable assembly.
Dependencies are inferred from the claim text.