Device for generating haptic feedback

The device design addresses performance and assembly challenges in haptic feedback devices by using a piezoelectric actuator with reinforcement elements and interface components, ensuring stable and efficient haptic feedback generation.

DE102024004492B4Active Publication Date: 2026-05-28TDK ELECTRONICS AG
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Patent Information

Application Number
DE102024004492
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Filing Date
2024-02-29
Publication Date
2026-05-28
Estimated Expiration
2044-02-29

AI Technical Summary

Technical Problem

Existing haptic feedback devices face challenges due to large tolerances in piezoelectric actuators and rigid elements, leading to performance fluctuations and potential damage, with manufacturing complexity and ease of assembly being key issues.

Method used

A device design incorporating a piezoelectric actuator with a mechanical reinforcement element, interface elements, and optional spring parts, which are fastened together using screws or adhesives, allowing for tolerance compensation and improved mechanical coupling between movable and rigid components, enhancing durability and ease of manufacturing.

Benefits of technology

The design improves mechanical stability, reduces performance fluctuations, and simplifies assembly by allowing for tolerance compensation, thereby increasing the reliability and efficiency of haptic feedback generation.

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Abstract

Device comprising a device for generating haptic feedback two components (20,30) that are movable relative to each other, and an installable actuator component (1) that is fixed between the two components, the actuator component (1) comprising: a piezoelectric actuator (2) which is mechanically coupled to the two components (20,30), a mechanical amplification element (3), wherein the mechanical amplification element is attached to the piezoelectric actuator (2), and an interface element (4), wherein the interface element (4) and the mechanical reinforcement element (3) are designed as a single piece, wherein the mechanical reinforcement element (3) is designed as a region bent perpendicular to the interface element (4), wherein the mechanical reinforcement element (3) or the interface element (4) formed in one piece with the mechanical reinforcement element (3) has a damping part (11) for damping movements and limiting movements of the mechanical reinforcement element (3) towards the piezoelectric actuator (2).
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Citation Information

Patent Citations

  • haptic feedback device

    DE202018102355U1

  • Bending suspension for providing haptic feedback to interactive devices

    DE202020100265U1

  • Suspension element having integrated piezo material for providing haptic effects to a touch screen

    EP2783271B1

  • Actuator, and tactile sensation presentation device

    EP3442110A1

  • Piezo drive, in particular as an automatic actuating element for a vehicle component

    US20210296563A1