Multi-directional vibration actuator
AssigneeTDK Taiwan Corp.
InventorsChao-Chang Hu, Che-Wei Chang
Life of this patent
Estimating the term…
Abstract
The present disclosure provides a vibration device, including a stator, an eccentric wheel and an electromagnetic driving assembly. The eccentric wheel rotates around a rotating shaft relative to the stator. The electromagnetic driving assembly includes at least one magnetic element and an induction coil. The at least one magnetic element is disposed on the eccentric wheel. The induction coil corresponds to the magnetic element, and the induction coil is disposed on the stator. When a current is applied to the induction coil, the induction coil acts with the magnetic element to generate an electromagnetic force to drive the eccentric wheel to rotate around the rotating shaft, so that the vibration device generates a vibration. The rotating shaft is disposed on the stator.
Claims12
A vibration device, comprising:
- a fixed portion;
- and
- a first vibration module, disposed in the fixed portion, comprising:
- a first movable member;
- a first resilient element, connected between the fixed portion and the first movable member;
- a first magnetic element;
- and
- a first induction coil, corresponding to the first magnetic element, wherein the first induction coil acts with the first magnetic element to generate an electromagnetic force to drive the first movable member to move along a first axial direction;
- wherein the vibration device further comprises a second vibration module disposed inside the fixed portion, and the second vibration module comprises:
- a second movable member;
- a second magnetic element;
- and
- a second induction coil, corresponding to the second magnetic element, wherein the second induction coil acts with the second magnetic element to generate an electromagnetic force to drive the second movable member to move along a second axial direction;
- wherein the first axial direction is not parallel to the second axial direction.
Dependencies are inferred from the claim text.