A self-leveling mechanism for testing fingers

CN115307663BActive Publication Date: 2025-09-19KUNSHAN KIMD CO LTD
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Patent Information

Application Number
CN202210939335.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-08-05
Publication Date
2025-09-19
Estimated Expiration
2042-08-05

AI Technical Summary

Technical Problem

It is difficult for existing test fingers to fully contact the touch button surface, especially when there are level differences and inconsistent surface roughness, resulting in unstable testing.

Method used

A self-leveling mechanism for the test finger is designed, which adopts elastic sheets, leveling columns and connecting columns, combined with conductive coating and bionic fingerprint circuit to achieve self-adjustment and conductive functions and adapt to different surface protrusions.

Benefits of technology

Ensure that the test finger can fully contact the key surface in any direction, improve the test repeatability and conductivity, and adapt to various touch key types.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to a self-leveling mechanism for testing fingers, comprising: a finger portion, the finger portion comprising an elastic sheet, the elastic sheet deforming when subjected to an external force, and returning to its original shape after the external force is removed; a leveling column, the leveling column connected to the finger portion, the leveling column being configured as a flexible column, the leveling column being capable of bending in a plurality of directions deviating from its axis; a cavity, the cavity being disposed between the finger portion and the leveling column, the cavity being provided with a filler, the filler being used to flexibly support the elastic surface of the finger portion; a connecting column, the connecting column being disposed at the end of the leveling column; the outer surfaces of the finger portion, the leveling column, and the connecting column are all provided with a conductive coating. The present invention solves the parallelism problem by providing a flexible leveling column, so that the finger portion is in close contact with the touch button, and solves the roughness problem by elastically supporting the elastic surface of the finger portion through a soft elastic material.
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Citation Information

Patent Citations

  • A detection method and a detection device

    CN106407057A

  • Test head for testing fingerprint sensor

    CN108604295A