Self-cleaning device

The self-cleaning device integrates ultrasonic vibration and heating methods to maintain sensor performance by removing foreign matter and moisture, addressing safety and size constraints in autonomous vehicles.

WO2026134839A1PCT designated stage Publication Date: 2026-06-25JAHWA ELECTRONICS
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
JAHWA ELECTRONICS
Filing Date
2025-12-02
Publication Date
2026-06-25

AI Technical Summary

Technical Problem

Autonomous vehicle sensors are prone to performance degradation due to visibility-obstructing substances like raindrops, dust, and insects, which negatively impact driving safety, and existing foreign object removal technologies are inadequate.

Method used

A self-cleaning device using ultrasonic vibration and heating methods integrated with the camera module to effectively remove foreign matter from the cover glass and optical elements, ensuring uniform heat transfer and miniaturization.

Benefits of technology

Maintains optimal sensor performance by removing foreign matter and moisture, enhancing safety and enabling miniaturization of the camera module.

✦ Generated by Eureka AI based on patent content.

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    Figure KR2025020404_25062026_PF_FP_ABST
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Abstract

The present invention provides a self-cleaning device comprising: a first frame having an accommodation groove formed along the inner side surface thereof; a second frame coupled to the first frame; an optical element provided in the second frame; a vibration element disposed between the first frame and the second frame, and formed in a cylindrical shape; a cover glass disposed between the first frame and the vibration element; and a vibration-transmitting element disposed between the first frame and the cover glass, and accommodated in the accommodation groove, wherein the vibration-transmitting element is disposed at a position corresponding to the vibration element.
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