Goertek Inc.

Xiaodong Cao

Jinli Liu

Dong Qiu

The invention discloses a sound-absorbing material particle and a preparation method thereof. The method for preparing the sound-absorbing material particle comprises: mixing a sound-absorbing raw material with a solvent to form a sound-absorbing slurry; filling the sound-absorbing slurry into a mechanical compression die, and performing compression molding on the sound-absorbing slurry to form a particle; performing a hydrothermal crystallization reaction on the particle to crystallize the sound-absorbing raw material in the particle; and drying the particle to produce the sound-absorbing material particle.

Sound-absorbing material particle and preparation method thereof

The present invention discloses a sound-absorbing piece and a preparation method thereof. The preparation method of the sound-absorbing piece comprises: preparing perforated sound-absorbing cotton matched with a preset cavity in shape; mixing sound-absorbing material powder with a solvent and a template agent to prepare a sound-absorbing slurry; impregnating the perforated sound-absorbing cotton with the sound-absorbing slurry for a preset period; and drying the perforated sound-absorbing cotton impregnated with the sound-absorbing slurry to remove a liquid in the perforated sound-absorbing cotton.

Sound-absorbing piece and preparation method thereof

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.

Method for preparing sound-absorbing article, and sound-absorbing article

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.

Speaker module

The present invention relates to a method for preparing a sound-adsorbing material and a sound-adsorbing material. The method includes the following steps: S, preparing a non-foaming material slurry and mixing the slurry uniformly; S, forming the non-foaming material slurry by using an oil column forming method to form wet granules; S, drying the wet granules to form dry granules; and S, 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.

Method for preparing sound-adsorbing material and sound-adsorbing material

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.

Method for preparing mesoporous sound-absorbing material particles and mesoporous sound-absorbing material particles

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.

Sound absorption material preparation method, sound absorption material and filling method thereof

The present invention relates to the technical field of electroacoustic products, and discloses sound-absorbing material, sound-absorbing particle, speaker module manufacturing processes, a particle and a module. The process comprises the following steps: placing a raw powder of a porous sound-absorbing material into a heating furnace to perform calcination, and introducing a processing gas during the calcination, wherein the calcination temperature is 120&#xb0; C. to 800&#xb0; C., and the calcination time is 6 h to 72 h.

Sound-absorbing material, sound-absorbing particle and speaker module manufacturing process, particle and module

The invention discloses a sound-absorbing material particle and a preparation method thereof. The preparation method comprises the following steps: step, 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, 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, performing solid-liquid separation on the materials in the reaction kettle; and step, drying and roasting the sound-absorbing material particle.

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.

Speaker module and sound-adsorbing material

Disclosed is a sound-absorbing component, comprising a housing and sound-absorbing particles filled in the housing. An antistatic material is added to the materials from which the housing is made, or the antistatic material is coated on the surface of the housing. Also disclosed is a speaker module applying the sound-absorbing component. The sound-absorbing component of the present invention greatly increases the fill rate of the sound-absorbing particles in the housing, thus allowing the space of the rear acoustic cavity of the speaker module applying the sound-absorbing component to be fully utilized, and allowing the sound-absorbing particles to fully exert the effects thereof in improving the acoustic properties of the speaker module.

Sound-absorbing component and speaker module applying the sound-absorbing component

A loudspeaker module, comprising a housing, the housing accommodates a loudspeaker unit, and the loudspeaker unit divides the overall module inner cavity into a front acoustic cavity and a rear acoustic cavity, the rear acoustic cavity is provided with sound absorbing particles therein, the rear acoustic cavity is further provided with therein a net-like isolating component for isolating the sound absorbing particles and the loudspeaker unit, the isolating component divides the whole rear acoustic cavity into a filled region and an non-filled region, the sound absorbing particles are located within the filled region, the sound absorbing particles are made of a non-foaming material, and the external diameter of the sound absorbing particles is &#x2265;0.01 mm and less than the height of the filled region.

Loudspeaker module

A sound absorption component and a loudspeaker module having the sound absorption component comprises a hauling shell and sound absorbing particles that are packaged within the hauling shell, wherein the hauling shell is provided with an opening, the opening of the hauling shell is provided with an opening sealing member for sealing the sound absorbing particles, the material of the hauling shell is sound absorbing cotton, and the sound absorbing particles are formed by granulation of porous material raw powder; and the shape of the sound absorption component matches with the shape of the space to be filled by the sound absorption component. The sound absorption component and the loudspeaker module having the sound absorption component sufficiently utilizes the space of the rear vocal cavity of the module, and sufficiently utilizes the sound absorption performance of the filling sound absorbing particles, and the product has good acoustic performance.

Sound absorption component and loudspeaker module having sound absorption component

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.

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Weifang, China

Xiaodong Cao