A super-linear loudspeaker and its manufacturing method

By designing a square bar speaker body, increasing the voice coil length and magnetic circuit volume, and combining the optimization of the frame and sound cavity, the problem of insufficient loudness of round speakers in ultra-thin large screens has been solved, achieving high loudness, low distortion and low frequency characteristics, making it suitable for ultra-thin large screen electronic products.

CN120980418BActive Publication Date: 2026-04-03XIAMEN GREAT SOUND TECH
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Patent Information

Application Number
CN202511282197.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-09-09
Publication Date
2026-04-03
Estimated Expiration
2045-09-09

AI Technical Summary

Technical Problem

Existing circular horn-shaped speakers have limited voice coil diameter in ultra-thin, large-screen electronic products, making it difficult to improve sound volume. Furthermore, stacking speakers is costly and cannot meet the needs of ultra-thin, large-screen devices.

Method used

The speaker adopts a square bar-shaped body, increasing the voice coil length and magnetic circuit volume. Combined with the main frame and sub-frame structure, the magnetic circuit and acoustic cavity design are optimized. FPC board is used in conjunction with the sub-diaphragm to ensure vertical linearity and low distortion. Magnesium-aluminum alloy clips and copper-clad aluminum alloy wires are used to improve structural stability.

Benefits of technology

In ultra-thin large screens, the loudness of the speakers can be increased by 1 to 2 times, while reducing power consumption and distortion, achieving high sound pressure level and low resonant frequency to meet the structural requirements of ultra-thin large screens.

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Abstract

This invention discloses a super-linear loudspeaker and its manufacturing method, comprising a square bar-shaped loudspeaker body that cooperates with a display screen. The loudspeaker body includes a support frame, which includes a first-stage frame that cooperates with a sound-generating unit and a second-stage frame that cooperates with a magnetic circuit unit. The first-stage frame and the second-stage frame are arranged in a stepped manner. The magnetic circuit unit includes a magnetic cup and a magnet disposed within the magnetic cup. The sound-generating unit includes a diaphragm disposed at the top of the first-stage frame and a voice coil that drives the diaphragm to vibrate. A magnetic gap is formed between the magnet and the sidewall of the magnetic cup to cooperate with the voice coil. A main frame is disposed between the voice coil and the diaphragm. The top of the main frame is fixedly connected to the diaphragm, and the bottom of the main frame is fixedly connected to the voice coil. By optimizing the loudspeaker shape, adding a small diaphragm structure welded to the back of the FPC, and optimizing the magnetic circuit structure, the low frequency is better during sound generation, and the power consumption, distortion, and space occupation are smaller, resulting in higher loudness.
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