公开(公告)号：US11691348B2

公开(公告)日：2023-07-04

申请号：US16913552

申请日：2020-06-26

Applicant: GN AUDIO A/S

Inventor： Erik Lindgren

IPC: B29C65/16 ,  B29C44/18 ,  B29C44/34 ,  B29C65/48 ,  H04R1/08 ,  H04R1/10 ,  H04R25/00 ,  B29K101/12 ,  B29L31/34

CPC classification number: B29C65/1635 ,  B29C44/188 ,  B29C44/3419 ,  B29C44/3492 ,  B29C65/4815 ,  H04R1/08 ,  H04R1/1075 ,  H04R25/604 ,  B29K2101/12 ,  B29K2995/0026 ,  B29L2031/3418 ,  H04R25/65 ,  H04R25/658

Abstract: A method for manufacturing a hearing device is disclosed. The hearing device comprises a speaker, a first chamber, and a sound channel arranged between the first chamber and the surroundings of the hearing device or a second chamber. An element of a thermoplastic material being in a solid state is arranged in the sound channel. A laser light is applied to the element to thereby activate the element to change from the solid state to a liquid state. The element then changes from the solid state to the liquid state filling out a cross-section of the sound channel and thereby sealing the sound channel. Finally, cooling of the element is allowed leading to a change of the element from the liquid state to solid state while filling out the cross-section of the sound channel.