A moving coil unit and earphone

By designing a standardized cylindrical dynamic driver unit, the problem of inconsistent dynamic driver unit size in wireless headphones was solved, reducing design costs and improving the sensitivity and acoustic performance of the headphones, thus achieving applicability to multiple headphone models and a consistent listening experience.

CN224385641UActive Publication Date: 2026-06-19DONGGUAN YUANZE ACOUSTIC TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN YUANZE ACOUSTIC TECH CO LTD
Filing Date
2025-06-06
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

In existing wireless headphone designs, the size of the dynamic driver unit cannot be standardized, each headphone shell needs to be designed separately, and sensitivity affects the noise cancellation design, resulting in high design costs and inconsistent sensitivity.

Method used

A cylindrical dynamic driver unit is provided, including a cover, a diaphragm assembly, a voice coil, a magnet assembly, a frame, a housing, and a circuit board. The dimensions are standardized to a height of 4.1 mm to 4.3 mm and a diameter of 9 mm to 10.5 mm. It has excellent sensitivity of 100~110 dB/mW and is suitable for various headphone housings.

Benefits of technology

It achieves a standardized design for the dynamic driver unit, reducing headphone design costs, and provides good acoustic performance and a consistent listening experience by optimizing component parameters to approximate the Harman curve.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of sound unit technology, and discloses a dynamic driver unit and earphone including a cover, a diaphragm assembly, a voice coil, a magnet assembly, a frame, a housing, and a circuit board. A cavity is formed between the housing and the cover, and the diaphragm assembly, the voice coil, the magnet assembly, and the frame are disposed within the cavity. The housing and the cover together form a cylinder with a height H1 between 4.1 mm and 4.3 mm and a diameter D1 between 9 mm and 10.5 mm. The dynamic driver unit is cylindrical, with a height H1 between 4.1 mm and 4.3 mm and a diameter D1 between 9 mm and 10.5 mm. Within this size, the dynamic driver unit exhibits excellent sensitivity (100~110 dB / mW). This dynamic driver unit can be used as a standard component and can be installed in various earphone housings, reducing earphone design costs.
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