Component for producing active haptic feedback
AssigneeEpcos AG
InventorFranz Rinner
Life of this patent
Estimating the term…
Abstract
The present invention relates to a component (1) for generating active haptic feedback, comprising a main body (2) having first and second internal electrodes (3, 4) stacked one above another in a stacking direction (S), wherein a respective piezoelectric layer (9) is arranged between the internal electrodes (3, 4), wherein the component (1) is configured to identify a force exerted on the component (1), wherein the component (1) is configured to generate active haptic feedback if a force exerted on the component (1) is identified, and wherein the haptic feedback is generated by virtue of an electrical voltage being applied between the first and second internal electrodes (3, 4), said electrical voltage resulting in a change in length of the main body (2).
Claims11
A component for generating an active haptic feedback, comprising:
- a main body having first and second internal electrodes stacked one above another in a stacking direction, wherein a respective piezoelectric layer is arranged between the first and second internal electrodes,
- wherein the component is configured to identify a force exerted on the component, and generate, in response to identification of the force exerted on the component, the active haptic feedback,
- wherein the active haptic feedback is generated by virtue of an electrical voltage being applied between the first and second internal electrodes, said electrical voltage resulting in a change in length of the main body,
- wherein a metal sheet comprising titanium is arranged on a top side and/or an underside of the main body, and is configured to transform the change in length of the main body in a direction perpendicular to the stacking direction into the change in length of the component in the stacking direction,
- wherein the component comprises a measuring unit for measuring a voltage which is generated between the first and second internal electrodes and which arises on account of the force exerted on the component,
- wherein the component is configured to identify the force exerted on the component on a basis of the measured voltage,
- wherein the component comprises a first external electrode and a second external electrode, and
- wherein the first internal electrodes are contacted with the first external electrode, and the second internal electrodes are contacted with the second external electrode.
A component for generating an active haptic feedback, comprising:
- a main body having first and second internal electrodes stacked one above another in a stacking direction, wherein a respective piezoelectric layer is arranged between the first and second internal electrodes,
- wherein the component is configured to identify a force exerted on the component, and generate, in response to identification of the force exerted on the component, the active haptic feedback,
- wherein the active haptic feedback is generated by virtue of an electrical voltage being applied between the first and second internal electrodes, said electrical voltage resulting in a change in length of the main body,
- wherein a metal sheet comprising titanium is arranged on a top side and/or an underside of the main body, and is configured to transform the change in length of the main body in a direction perpendicular to the stacking direction into the change in length of the component in the stacking direction,
- wherein the component comprises a measuring unit for measuring a voltage which is generated between the first and second internal electrodes and which arises on account of the force exerted on the component,
- wherein the component is configured to identify the force exerted on the component on a basis of the measured voltage,
- wherein the component comprises a first external electrode and a second external electrode,
- wherein the first internal electrodes are contacted with the first external electrode, and the second internal electrodes are contacted with the second external electrode,
- wherein the first and the second internal electrodes have a function to identify the force exerted on the component based on the voltage generated between the first and second internal electrodes, and
- wherein the first and the second internal electrodes have a function to initiate the change in length of the component, such that the active haptic feedback is generated, if an AC voltage is applied between the first and the second internal electrodes.
Dependencies are inferred from the claim text.