公开(公告)号：US20190158951A1

公开(公告)日：2019-05-23

申请号：US16076474

申请日：2015-12-21

Applicant: Goertek Inc.

Inventor： Xiaodong Cao

IPC: H04R1/28 ,  H04R1/02 ,  G10K11/162 ,  H04R9/02 ,  H04R9/06

Abstract: The invention provides a speaker module and a sound-adsorbing material, comprising: a housing and a speaker unit accommodated in the housing, wherein the speaker unit separates a cavity formed by the housing into a front sound cavity and a rear sound cavity; the rear sound cavity is filled with a sound-adsorbing material; and heteroatoms are doped in a crystal structure of the sound-adsorbing material. The application of the above invention can reduce the adsorption of alien molecules by the sound-adsorbing material inside the speaker module, and even reject the alien molecules, thereby ensuring the long-term effectiveness of the sound-adsorbing material and improving the stability of the acoustic performance of the speaker module.

公开(公告)号：US20190051280A1

公开(公告)日：2019-02-14

申请号：US16076693

申请日：2015-12-17

Applicant: Goertek Inc.

Inventor： Xiaodong Cao

IPC: G10K11/162 ,  B01J2/06

Abstract: The present invention relates to a method for preparing a sound-adsorbing material and a sound-adsorbing material. The method includes the following steps: S1, preparing a non-foaming material slurry and mixing the slurry uniformly; S2, forming the non-foaming material slurry by using an oil column forming method to form wet granules; S3, drying the wet granules to form dry granules; and S4, roasting the dry granules to form sound-adsorbing material granules. The method has the advantages of simple operation and high reliability. The formed granules can have a uniform size, a smooth surface and high sphericity, and the granules are in contact with each other in points and piled up uniformly, which can reduce the bed resistance.

公开(公告)号：US10197438B2

公开(公告)日：2019-02-05

申请号：US15513942

申请日：2015-06-15

Applicant: Goertek Inc.

Inventor： Dong Qiu ,  Xiaodong Cao

IPC: G01H15/00 ,  G10K11/162 ,  G10H3/00 ,  G01N29/09 ,  G01B17/00 ,  G01H3/00

Abstract: Disclosed are a device and a method for testing impedance characteristic and expansion performance of a sound absorption material. The device includes a first cavity and a second cavity which are both sealed. The first cavity is communicated with the second cavity through a slit channel. The second cavity is used for placing a sound absorption material therein. The device further includes a sound excitation source whose sounding face is located in the first cavity and used to provide a testing sound pressure. The device further includes two sound pickup sensors whose sound pickup surfaces are respectively arranged in the first cavity and the second cavity and respectively used to detect sound pressure in the first cavity and the second cavity. The device further includes a material for enclosing the first cavity and the second cavity is a hard sound insulation material.

公开(公告)号：US20180354865A1

公开(公告)日：2018-12-13

申请号：US15781268

申请日：2016-05-18

Applicant: Goertek Inc.

Inventor： Xiaodong Cao

IPC: C04B41/50 ,  C04B38/00 ,  C04B41/00 ,  C04B41/85 ,  G10K11/162

CPC classification number: C04B41/5024 ,  C04B38/0012 ,  C04B41/009 ,  C04B41/80 ,  C04B41/85 ,  G10K11/162

Abstract: The invention discloses a sound-absorbing material particle and a preparation method thereof. The preparation method comprises the following steps: step 1, mixing a sound-absorbing raw material with a templating agent and water to prepare a sound-absorbing slurry, filling a reaction kettle with a porous ceramic substrate and the sound-absorbing slurry that are mixed together; step 2, performing hydrothermal crystallization in the reaction kettle to ensure that the sound-absorbing raw material is crystallized on the porous ceramic substrate and constitutes the sound-absorbing material particle together with the porous ceramic substrate; step 3, performing solid-liquid separation on the materials in the reaction kettle; and step 4, drying and roasting the sound-absorbing material particle.

公开(公告)号：US11217219B2

公开(公告)日：2022-01-04

申请号：US16078222

申请日：2016-05-18

Applicant: GOERTEK INC.

Inventor： Xiaodong Cao

IPC: G10K11/165 ,  C08K3/36 ,  C08G18/06 ,  C08K3/34 ,  C08J9/12 ,  G10K11/00 ,  C08G101/00

Abstract: Disclosed are a method for preparing a sound-absorbing member and a sound-absorbing member. The method for preparing a sound-absorbing member includes: providing non-foaming sound-absorbing material powder and a foaming material; uniformly mixing the non-foaming sound-absorbing material powder with the foaming material and adding an auxiliary to form a sound-absorbing mixture; and foaming the sound-absorbing mixture to form foam with cells, wherein the non-foaming sound-absorbing material powder adheres to a surface and the cells of the foam. The foamed sound-absorbing material powder and the foam constitute a sound-absorbing member.

公开(公告)号：US11128950B2

公开(公告)日：2021-09-21

申请号：US16099158

申请日：2016-12-30

Applicant: GOERTEK INC.

Inventor： Xiaodong Cao ,  Jinli Liu

IPC: H04R1/28 ,  H04R9/02 ,  H04R9/06 ,  H04R1/02

Abstract: Disclosed is a speaker module, comprising a module housing and a speaker unit accommodated in the module housing. The speaker unit partitions a module cavity encircled by the module housing into two cavities, namely a front acoustic cavity and a rear acoustic cavity. A separator component is provided within the rear acoustic cavity. The separator component partitions the rear acoustic cavity into an accommodating cavity and a sound-absorbing cavity. The sound-absorbing cavity is filled with sound-absorbing particles. An antistatic material is added into the housing material of the module housing at where the sound-absorbing cavity is located, or the antistatic material is coated on the surface of the module housing at where the sound-absorbing cavity is located, and the antistatic material is either an electrically-conductive material or an antistatic agent. The speaker module of the present invention is capable of greatly increasing the fill rate of the sound-absorbing particles in the sound-absorbing cavity of the rear acoustic cavity of the speaker module, thus allowing the space of the rear acoustic cavity of the speaker module to be fully utilized and the sound-absorbing particles to fully exert the effects thereof in improving the acoustic properties of the speaker module, and greatly increasing the acoustic properties of the speaker module.

公开(公告)号：US11028023B2

公开(公告)日：2021-06-08

申请号：US15781297

申请日：2016-05-18

Applicant: Goertek Inc.

Inventor： Xiaodong Cao

IPC: C04B38/10 ,  C04B38/06 ,  G10K11/165 ,  C04B38/00 ,  G10K11/162 ,  H04R1/28 ,  C04B111/52

Abstract: The invention discloses a method for preparing mesoporous sound-absorbing material particles and mesoporous sound-absorbing material particles. The preparation method comprises the following steps. In step 1, sound-absorbing material powder and a templating agent are mixed with a binding agent and water to form sol slurry, the templating agent is an organic monomer or a linear polymer, and the templating agent has a purity greater than 95%. In step 2, the sol slurry is dropped into forming oil, and the droplets of the sol slurry are aged in the forming oil to form gel particles. In step 3, the gel particles are taken out from the forming oil and the gel particles are dried to form mesoporous sound-absorbing material particles. In step 4, the mesoporous sound-absorbing material particles are roasted.

公开(公告)号：US10889525B2

公开(公告)日：2021-01-12

申请号：US15757814

申请日：2015-11-19

Applicant: Goertek Inc.

Inventor： Xiaodong Cao

IPC: C04B38/06 ,  H04R1/28 ,  G10K11/162 ,  G10K11/172 ,  H04R31/00 ,  C04B111/52 ,  H04R9/06

Abstract: A sound absorption material preparation method, a sound absorption material and a filling method thereof. The preparation method comprises: S1, preparing a non-foaming material slurry; S2, producing a combustible material framework and a cover-shape container, and placing the combustible material framework into the cover-shape container; S3, forming the non-foamed material slurry in the cover-shape container to form a wet formed body; S4, drying the wet formed body to form a dry formed body; and S5, calcining the dry formed body, wherein the combustible material framework is burned off during the calcining step to form connected channels with a three-dimensional structure in the sound absorption material. The preparation method is simple in operation. Connected channels with a three-dimensional structure are formed in the sound absorption material so that the sound absorption effect is improved. The sound absorption material is prepared by the preparation method, has connected channels with a three-dimensional structure therein, and has a good sound absorption effect. The filling method comprises first pre-forming the sound absorption material and then filling same into a space to be filled, so that the sound absorption material fully fills the space to be filled.

公开(公告)号：US20190092700A1

公开(公告)日：2019-03-28

申请号：US15781297

申请日：2016-05-18

Applicant: Goertek Inc.

Inventor： Xiaodong Cao

IPC: C04B38/06 ,  C04B38/00 ,  G10K11/162

Abstract: The invention discloses a method for preparing mesoporous sound-absorbing material particles and mesoporous sound-absorbing material particles. The preparation method comprises the following steps. In step 1, sound-absorbing material powder and a templating agent are mixed with a binding agent and water to form sol slurry, the templating agent is an organic monomer or a linear polymer, and the templating agent has a purity greater than 95%. In step 2, the sol slurry is dropped into forming oil, and the droplets of the sol slurry are aged in the forming oil to form gel particles. In step 3, the gel particles are taken out from the forming oil and the gel particles are dried to form mesoporous sound-absorbing material particles. In step 4, the mesoporous sound-absorbing material particles are roasted.

公开(公告)号：US20170276540A1

公开(公告)日：2017-09-28

申请号：US15513942

申请日：2015-06-15

Applicant: Goertek Inc.

Inventor： Dong Qiu ,  Xiaodong Cao

IPC: G01H15/00 ,  G01N29/09 ,  G10K11/162 ,  G01B17/00

CPC classification number: G01H15/00 ,  G01B17/00 ,  G01H3/00 ,  G01N29/09 ,  G01N2291/028 ,  G10K11/162

Abstract: Disclosed are a device and a method for testing impedance characteristic and expansion performance of a sound absorption material. The device includes a first cavity and a second cavity which are both sealed. The first cavity is communicated with the second cavity through a slit channel. The second cavity is used for placing a sound absorption material therein. The device further includes a sound excitation source whose sounding face is located in the first cavity and used to provide a testing sound pressure. The device further includes two sound pickup sensors whose sound pickup surfaces are respectively arranged in the first cavity and the second cavity and respectively used to detect sound pressure in the first cavity and the second cavity. The device further includes a material for enclosing the first cavity and the second cavity is a hard sound insulation material.