公开(公告)号：US20220038823A1

公开(公告)日：2022-02-03

申请号：US17280549

申请日：2018-12-20

Applicant: Goertek Inc.

Inventor： Yuan GAO ,  Chengwei LI ,  Zhenjun LI

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

Abstract: The present disclosure discloses a speaker module, comprising a module housing and a speaker unit disposed in the module housing, wherein the speaker unit divides a cavity enclosed by the module housing into a front acoustic cavity and a rear acoustic cavity, the module housing is further provided with an air-permeable insulation assembly which divides the rear acoustic cavity into a first chamber and a second chamber, and the second chamber is filled with a sound-absorbing material, and wherein the air-permeable insulation assembly comprises a support frame and a mesh cloth adhered and fixed to the support frame by means of a back adhesive. The present disclosure can be used to prevent the problems of mesh breakage and mesh deviation that are likely to occur when the mesh cloth is being installed at the air-permeable insulation assembly, thereby improving the production yield of the air-permeable insulation assembly.

公开(公告)号：US20190158960A1

公开(公告)日：2019-05-23

申请号：US16097423

申请日：2016-12-28

Applicant: GOERTEK INC.

Inventor： Qingyi ZHANG ,  Gang CHEN ,  Zhenjun LI ,  Shuangshuang FAN

IPC: H04R9/06 ,  B29C45/14 ,  H04R9/02 ,  H04R31/00

Abstract: The present invention provides a sound generation device and a preparation method of a metal plastic part. The sound generation device comprises a metal plastic part. The metal plastic part comprises a plastic part and a metal insert that is combined with the plastic part. An oxidation film that is obtained through metal nanocrystallization and a nanopore that is formed in a surface of the oxidation film and has a pore diameter of 20-1,000 nm are arranged on a surface of the metal insert. The nanopore is filled with a resin composition from which the plastic part is made. As the nanopore is filled with the resin composition from which the plastic part is made, the metal insert and the plastic part are in close fit with each other, which greatly enhances the gluing capability of the metal insert and prevents the metal insert and the plastic part which are formed through injection molding from being separated. A length of a portion embedded into the plastic part of the metal insert is greatly reduced, such that transfer of ultrasonic energy is smooth. The metal plastic part is effectively prevented from ultrasonic unmelting. Thus, the waterproofness and the sealing property of the metal plastic part are improved. Accordingly, the performance of the sound generation device is improved.