Wearable audio output device

By arranging a detection wire in the ear hook of the wearable audio output device and using capacitance changes for wear detection, the problem of large hardware footprint is solved, achieving accurate wear detection and a comfortable user experience.

CN224521137UActive Publication Date: 2026-07-17DONGGUAN LIESHENG ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN LIESHENG ELECTRONICS CO LTD
Filing Date
2025-04-09
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing bone conduction headphones and other electroacoustic wearable audio output devices use large-area flexible circuit boards for wear sensing and detection, resulting in a large hardware footprint and limiting the device's shape design.

Method used

The detection wire is directly placed on the ear loop and wear detection is performed by utilizing capacitance changes. The detection wire is fixedly connected to the connecting piece by welding. The use of outer and inner protective layers reduces the hardware footprint and ensures the accuracy of wear detection and user experience.

Benefits of technology

This significantly reduces the space occupied by hardware related to wear detection, lowers the space constraints on the internal circuit design of the device, and ensures both the accuracy of wear detection and user comfort.

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Abstract

The application discloses a wearable audio output device. The device comprises a main body part and an ear hook part, the ear hook part is provided with a detection wire arranged along the extension direction of the ear hook part, and the detection wire is fixedly connected with the main body part through a connecting sheet; the capacitance of the detection wire when the wearable audio output device is normally worn by a user is different from the capacitance of the detection wire when the audio output device is not worn. The wearable audio output device directly arranges the detection wire on the ear hook part, does not need to separately seek a space for arranging the wearing detection related hardware in the wearable audio output device, directly uses the basic structure of the wearable audio output device to arrange the detection wire, and uses the measurement of the overall capacitance of the detection wire to realize wearing detection, so that the occupied space of the wearing detection related hardware is greatly reduced, and the space restriction on the internal circuit design of the device is reduced.
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Claims

1. A wearable audio output device, the device comprising: The device comprises a main body part and an ear hook part, the ear hook part is provided with a detection wire arranged along the extension direction of the ear hook part, and the detection wire is fixedly connected with the main body part through a connecting sheet; The capacitance of the detection wire when the wearable audio output device is normally worn by a user is different from the capacitance of the detection wire when the wearable audio output device is not worn.

2. The apparatus of claim 1, wherein, The detection wire is fixedly connected with the connecting sheet through welding.

3. The apparatus of claim 2, wherein, The ear hook part is provided with an ear hook wire, and the ear hook wire and the detection wire are jointly covered by an outer protective layer.

4. The apparatus of claim 3, wherein, The ear hook wire and the detection wire are arranged in parallel. When the wearable audio output device is normally worn by a user, the detection wire is close to the skin of the user, and the ear hook wire is away from the skin of the user.

5. The apparatus of claim 3, wherein, One end of the ear hook wire close to the main body part is jointly covered by an inner protective layer together with the connecting sheet, and the inner protective layer is arranged inside the outer protective layer.

6. The apparatus of claim 5, wherein, Both the outer protective layer and the inner protective layer are silica gel protective layers, and the heat resistance of the inner protective layer is higher than that of the outer protective layer.

7. The apparatus of claim 5, wherein, The welding point of the detection wire and the connecting sheet is covered by the inner protective layer.

8. The apparatus of claim 1, wherein, The main body part comprises a control chip, and the connecting sheet is fixedly connected with a target port of the control chip in the main body part through welding.

9. The apparatus of any one of claims 1-8, wherein, The detection wire is a nickel-titanium alloy wire.

10. The apparatus of any one of claims 1-8, wherein, The connecting sheet is a nickel metal sheet.