Active sound absorption adjustable and noiseproof earplug with composite structure

A composite structure, active sound absorption technology, applied in earplugs and other directions, can solve the problems of sound insulation effect, ear canal discomfort, unstable noise reduction performance of earplugs, etc., to achieve the effect of adjustability and novel ideas

Inactive Publication Date: 2010-09-15
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the anti-noise earplugs used in daily life often bring a lot of inconvenience because they shield useful sounds in the environment at the same time; on some special working surfaces, the sound insulation effect is affected, and long-term wear makes the ear canal feel uncomfortable; Under different noise frequencies, the noise reduction performance of the earplugs is unstable

Method used

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  • Active sound absorption adjustable and noiseproof earplug with composite structure
  • Active sound absorption adjustable and noiseproof earplug with composite structure
  • Active sound absorption adjustable and noiseproof earplug with composite structure

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0030] see figure 2 with Figure 9 , the ear-hanging earplug support body 6 is equipped with a sound absorbing body 2, a porous sound-absorbing material 4 is arranged on the outside of one end of the sound-absorbing body 2, and a micro-perforated plate 1 is arranged on the inside of the porous sound-absorbing material 4. The other end of the body 2 is provided with a rigid wall 3 that can be adjusted and moved in the sound-absorbing body 2. The micro-perforated plate 1 and the rigid wall 3 are not limited by the material, and are generally thin metal plates such as aluminum or steel plates. The ear end of the ear is attached with a slow rebound elastic material 7 for contacting with the ear, and the porous sound-absorbing material 4 is glass fiber.

[0031] see figure 2 with Figure 9 , this noise-proof earplug integrates the sound-absorb...

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Abstract

The invention discloses an active sound absorption adjustable and noiseproof earplug with a composite structure, comprising an earplug supporting body and a sound absorption body (2) arranged on the earplug supporting body, wherein the outer side of one end of the sound absorption body (2) is provided with a porous sound absorption material (4), and a micropunch plate (1) is arranged at the inner side close to the porous sound absorption material (4), while the other end of the sound absorption body (2) is provided with a rigid wall (3) capable of being adjusted and moving in the sound absorption body (2). The active sound absorption adjustable and noiseproof earplug with the composite structure can be used for selectively absorbing noise in a pertinence way to realize the adjustability of the noiseproof earplug, and ensures that the noiseproof earplug can maintain the optimal sound absorption effect in different environments.

Description

technical field [0001] The invention relates to an earplug, in particular to an adjustable anti-noise earplug with an active sound-absorbing composite structure. technical background [0002] Most of the anti-noise earplugs used in daily life often bring a lot of inconvenience because they shield useful sounds in the environment at the same time; on some special working surfaces, the sound insulation effect is affected, and long-term wear makes the ear canal feel uncomfortable; Under different noise frequencies, the noise reduction performance of the earplugs is unstable. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an active sound-absorbing composite structure that selectively and specifically absorbs noise, realizes the adjustability of noise-proof earplugs, and maintains the best sound-absorbing effect in different environments Adjustable noise-canceling eartips. [0004] In order to solve the above techn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F11/08
Inventor 黄丹盛惠娟黄仁东史采星
Owner CENT SOUTH UNIV
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