公开(公告)号：US20230164490A1

公开(公告)日：2023-05-25

申请号：US17997218

申请日：2020-11-07

Applicant: GOERTEK INC.

Inventor： Deyue WU ,  He LIANG ,  Minghui SHAO

IPC: H04R7/06 ,  B32B15/01 ,  H04R9/02 ,  B32B5/18 ,  B32B5/02

CPC classification number: H04R7/06 ,  B32B15/015 ,  H04R9/025 ,  B32B5/18 ,  B32B5/02

Abstract: The present disclosure provides a diaphragm and a sound generating device using the diaphragm. The diaphragm comprises a diaphragm body part, and a composite layer bonded to the center of the diaphragm body part. The composite layer comprises: a porous material layer; and a first metal layer and a second metal layer respectively disposed on two sides of the porous material layer. Compared with the prior art, the composite layer of the diaphragm adopts a composite structure composed of a porous material layer and metal layers, which can reduce the mass of the diaphragm and improve the modulus density ratio of the diaphragm while ensuring the rigidity of vibration. The porous structural material can increase the damping of the diaphragm, absorb the vibration energy under the specific resonant frequency, and thus effectively improve the high-frequency split vibration, reduce the distortion and improve the high pitched sound quality.

公开(公告)号：US20230116758A1

公开(公告)日：2023-04-13

申请号：US17907317

申请日：2020-11-07

Applicant: GOERTEK INC.

Inventor： Deyue WU ,  He LIANG ,  Minghui SHAO

IPC: H04R1/02 ,  H04R1/28

Abstract: The present disclosure provides a loudspeaker module, comprising a housing and a loudspeaker unit accommodated in a space of the housing, wherein the loudspeaker unit divides the space of the housing into a front sound cavity and a rear sound cavity, a through hole penetrating the housing is provided on the housing at a position corresponding to the front sound cavity, the loudspeaker module further comprises a cover plate covering the through hole, the cover plate comprising at least one metal foam layer and at least one metal sheet layer. Compared with the related art, the cover plate comprises the metal foam layer, so as to weaken the resonance effect of the loudspeaker module and to reduce the distortion of the loudspeaker module, thereby improving the acoustic performance of the loudspeaker module.