A headset

By utilizing the principle of acoustic dipoles and adjusting the mass of the core housing and the stiffness of the transducer in the headphones, the frequency response curve of the vibration panel was optimized, solving the problems of sound leakage and waterproofing/dustproofing, and improving the acoustic performance of the headphones.

CN116095551BActive Publication Date: 2026-07-07SHENZHEN SHOKZ CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHENZHEN SHOKZ CO LTD
Filing Date
2022-09-22
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing headphones are prone to sound leakage during vibration, and their design makes it difficult to simultaneously guarantee waterproof and dustproof performance.

Method used

By designing the sound leakage generated by the two end walls in the vibration direction of the movement housing to cancel each other out in the far field, and combining the principle of acoustic dipole, the sound leakage reduction holes on the movement housing can be reduced or eliminated. At the same time, the mass of the movement housing and the stiffness of the transmission plate are adjusted to optimize the frequency response curve of the vibration panel and form a Helmholtz resonant cavity to weaken the resonance peak.

Benefits of technology

It effectively reduces headphone sound leakage, improves waterproof and dustproof performance, and enhances the acoustic performance of the headphones, especially in the mid-frequency range, by adjusting the frequency response curve of the vibration panel.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN116095551B_ABST
    Figure CN116095551B_ABST
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Abstract

The application mainly relates to an earphone, which comprises a core shell, a transducing device, a first vibration transmission sheet and a vibration panel. The transducing device is suspended in a containing cavity of the core shell through the first vibration transmission sheet and comprises a support, a second vibration transmission sheet, a magnetic circuit system and a coil. The support is connected with the core shell through the first vibration transmission sheet, the second vibration transmission sheet connects the support with the magnetic circuit system to suspend the magnetic circuit system in the containing cavity, the coil is connected with the support and extends into a magnetic gap of the magnetic circuit system along the vibration direction of the transducing device, and the vibration panel is connected with the support and is used for transmitting mechanical vibration generated by the transducing device to a user. In a non-wearing state, a frequency response curve of the vibration panel has a resonance peak which is strongly related to the rigidity of the support. The rigidity of the support is greater than or equal to 100000 N / m, and the peak resonance frequency of the resonance peak is greater than or equal to 4 kHz, so that the mid-high frequency band and the above frequency band of the aforementioned frequency response curve are as flat as possible, which is beneficial to improving the acoustic performance of the earphone.
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