Acoustic reinforcing material block with layered pore channel structure as well as manufacturing method and application thereof

A technology of reinforcing materials and channel structures, which is applied in applications, telephone structures, household appliances, etc., can solve problems such as incomplete filling, affecting material performance, and affecting performance, so as to achieve good sound quality, improve acoustic performance, and excellent sound performance effect

Pending Publication Date: 2021-06-25
SSI NEW MATERIAL (ZHENJIANG) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the granular acoustic enhancement material is difficult to fill or cannot be completely filled during filling, leaving a certain gap in the rear cavity of the speaker
When the speaker is working, the voice coil drives the gas in the rear shell to vibrate, causing the acoustic reinforcement material filled in the rear cavity to vibrate together, which affects the sense of hearing; since the filling amount of the acoustic reinforcement material directly affects the ΔF0 of the speaker, a low filling amount of the granular acoustic reinforcement material will Affect the utilization rate of the rear cavity space; in addition, the vibration will also cause the granular acoustic reinforcement material to fall and break during the collision process, and the falling powder will spread through the mes

Method used

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  • Acoustic reinforcing material block with layered pore channel structure as well as manufacturing method and application thereof
  • Acoustic reinforcing material block with layered pore channel structure as well as manufacturing method and application thereof
  • Acoustic reinforcing material block with layered pore channel structure as well as manufacturing method and application thereof

Examples

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Example Embodiment

[0094] Example 1

[0095] This embodiment provides a method of fabricating an acoustic reinforcing material block having a layered pore structure, wherein the manufacturing method comprises the steps of:

[0096] (1) 50 g of water, 50 g of molecular sieve particles (zeolite particles, average particle diameter of 1.4 μm), filler (2.5 g of mica powder and 2.5 g of alkaline chip glass fiber), 2 g (in solid content) binder ( The polyacrylate suspension) and 0.05 g of thickening agent (CMC) are well stirred and mixed, resulting in a small slurry;

[0097] (2) The sessile refrigeration of the step (1) has been oriented in the step (1) using an alignment freezer having a one-way temperature gradient environment, wherein the structure of the orientation refrigeration device having an unidirectional temperature gradient environment is as follows. Figure 9 As shown, the apparatus includes a teconlon upper cover 17 and a copper base 18 that is sealed between the Teflon upper cover 17;

[00...

Example Embodiment

[0111] Example 2

[0112] This embodiment provides a method of fabricating an acoustic reinforcing material block having a layered pore structure, wherein the manufacturing method comprises the steps of:

[0113] (1) 50 g of water, 50 g of molecular sieve particles (zeolite particles, average particle diameter of 1.4 μm), filler (2.5 g of mica powder and 2.5 g of alkaline chip glass fiber), 2 g (in solid content) binder ( The polyacrylate suspension) and 0.05 g of thickening agent (CMC) are well stirred and mixed, resulting in a small slurry;

[0114] (2) The sessile refrigeration of the step (1) is oriented by the orientation freezing device having a two-way temperature gradient environment, wherein the structure of the orientation refrigeration device having an unidirectional temperature gradient environment is shown. Figure 10 As shown, the apparatus includes a teconlon upper cover 17 and a copper base 18 that is sealed between the Teflon upper cover 17;

[0115] The freezing o...

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Abstract

The invention provides an acoustic reinforcing material block with a layered pore channel structure as well as a manufacturing method and application thereof. The acoustic reinforcing material block with a layered pore channel structure is prepared by taking components including a porous material, a binder, a filler and water as raw materials and adopting a freezing orientation process and a freeze-drying process; and the interior of the acoustic reinforcing material block with the layered pore channel structure is of a layered structure and is provided with multi-stage pore channels. The acoustic reinforcing material block with the layered pore channel structure fills a loudspeaker resonant cavity of electronic equipment, and the volume of the loudspeaker resonant cavity can be virtually increased, so that the loudspeaker can achieve better sound quality under the condition of smaller volume, and has more excellent sound performance.

Description

technical field [0001] The invention relates to an acoustic reinforcing material block with a layered pore structure and a manufacturing method and application thereof, belonging to the technical field of electroacoustic products. Background technique [0002] With the continuous development of mobile terminal devices such as mobile phones, their requirements for audio quality are also getting higher and higher. Generally speaking, as the rear cavity of the speaker increases, the performance improves accordingly. However, in mobile terminals such as mobile phones, there is no room left for the speaker module. One of the methods commonly used in this field is to fill the speaker rear cavity with acoustic reinforcement materials (such as filling granular acoustic reinforcement materials in the speaker rear cavity or filling bulk acoustic reinforcement materials in the speaker rear cavity), virtual augmentation The volume of the rear cavity is large to improve the overall perf...

Claims

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Application Information

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IPC IPC(8): C04B26/06C04B26/04C04B28/24C04B28/00C04B38/08H04M1/03C04B111/40
CPCC04B26/06C04B26/04C04B28/24C04B28/005C04B28/00H04M1/035C04B2111/40C04B14/047C04B14/20C04B14/42C04B24/383C04B38/08C04B38/0054
Inventor 张磊郭明波赵峻杰龚畅马院红刘仁坤
Owner SSI NEW MATERIAL (ZHENJIANG) CO LTD
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