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Active self-adaptive ANC earphone intelligent noise reduction module

An intelligent and noise-reducing technology, which is applied in earphones to reduce environmental noise, earpiece/earphone accessories, hearing devices with active noise cancellation, etc. The effect of mutual influence

Active Publication Date: 2021-08-06
SHENZHEN BAITAI IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventor thinks that since the sampling microphones on both sides of the inside and outside respectively sample the two sides, but there are also speakers such as speakers installed inside The sound generator itself is also producing sound, and the sound waves generated may be sampled and offset by an external sampling microphone, which will affect the sound quality of the earphone itself

Method used

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  • Active self-adaptive ANC earphone intelligent noise reduction module
  • Active self-adaptive ANC earphone intelligent noise reduction module
  • Active self-adaptive ANC earphone intelligent noise reduction module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Embodiment 1 of the present application discloses an active adaptive ANC earphone intelligent noise reduction module, refer to figure 1 , figure 2, including a front housing 100, the front housing 100 is a hollow structure with one side open, and the front housing 100 is integrally provided with a sound outlet 110 on the side away from the opening, and the sound outlet 110 is cylindrical for installation Objects such as silicone sleeves. The sound outlet 110 has a sound guide channel 120 communicating with the inner cavity of the front housing 100. The sound guide channel 120 is elliptical. The front housing 100 is equipped with a sound emitting part and a sampling part, and the sampling part is installed in the sound guide channel 120. , the sounding part is installed in the cavity of the front housing 100 .

[0043] refer to figure 2 , image 3 , the sampling part is a sampling microphone 121 in this embodiment, and the sampling microphone 121 is a cuboid, which...

Embodiment 2

[0049] The difference from Example 1 is that, referring to Image 6 There is a sound-proof sealing cavity 170 in the pressing block 155. The pressing block 155 includes a pressing ring 171 integrally arranged on the sound-proof sealing plate 150 and adapted to the horn 124. The pressing cover 172 on one side of the plate 150 and the sound-insulating sealing cavity 170 are formed by the sound-insulating sealing plate 150 , the pressing ring 171 and the pressing cover 172 . The soundproof sealing plate 150 is provided with a mounting hole 173 communicating with the soundproof sealing cavity 170, and an elastic pressing piece 174 is fixedly connected to the edge of the mounting hole 173. In this embodiment, the elastic pressing piece 174 is made of silica gel or rubber, and is used for The acoustically sealed cavity 170 is sealed.

[0050] refer to Image 6 , Figure 7 1. A one-way air outlet valve 175 is provided on the soundproof sealing plate 150 for communicating the sound...

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Abstract

The invention relates to the technical field of noise reduction earphones, and relates to an active self-adaptive ANC earphone intelligent noise reduction module comprising a front shell. The front shell is of a hollow structure with an opening on one side; the side, away from the opening, of the front shell is provided with a sound outlet nozzle, and a sound production part and a sampling part are installed in the front shell; a sound insulation sealing plate is arranged on the side of the opening of the front shell, the perimeter edge of the sound insulation sealing plate is attached to the inner wall of the front shell to form a sealing ring face, and a sound insulation sealing piece is arranged between the sealing ring face and the inner wall of the front shell to achieve the sound insulation and sealing effects. The active self-adaptive ANC earphone intelligent noise reduction module provided by the invention has the following effects: the sealing ring surface can achieve a complete sealing effect, completely separates the front shell from a rear shell, reduces the mutual influence of the front shell and the rear shell, and improves the sound quality and acoustics consistency of an earphone.

Description

technical field [0001] The present application relates to the technical field of noise reduction earphones, in particular to an active adaptive ANC earphone intelligent noise reduction module. Background technique [0002] There are many noise-cancelling earphones on the market now, which can enable users to obtain clearer sound from the earphones in a relatively noisy environment. Existing noise-cancelling headphones are divided into two categories: passive noise-cancellation and active noise-cancellation. Passive noise reduction generally uses good sound-absorbing acoustic materials to block external noise through very thick earmuffs or ear caps. The active noise reduction earphones use the noise reduction system to generate reverse sound waves equal to the external noise to neutralize the noise, thereby achieving the effect of noise reduction. [0003] Generally, active noise reduction headphones include the inside embedded in the ear and the outside exposed outside the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R1/10
CPCH04R1/1083H04R2460/01
Inventor 贾德双赵耘
Owner SHENZHEN BAITAI IND CO LTD