US 11,671,768 B2
Hearing aid having two interconnected parts
Elson Lim, Singapore (SG); Ravikumar Badiger, Singapore (SG); and Trung Le, Singapore (SG)
Assigned to Sivantos Pte. Ltd., Singapore (SG)
Filed by Sivantos Pte. Ltd., Singapore (SG)
Filed on Jul. 12, 2021, as Appl. No. 17/372,601.
Claims priority of application No. 102020208897.7 (DE), filed on Jul. 16, 2020.
Prior Publication US 2022/0021984 A1, Jan. 20, 2022
Int. Cl. H04R 25/00 (2006.01)
CPC H04R 25/48 (2013.01) [H04R 25/607 (2019.05); H04R 2225/0213 (2019.05)] 15 Claims
OG exemplary drawing
 
1. A hearing aid, comprising:
a base part and a second part to be fastened to said base part;
a nozzle and a receptacle extending along a center axis in a longitudinal direction;
said nozzle being insertable into said receptacle along the longitudinal direction for interconnecting said base part and said second part in an assembled state;
a sound channel extending through said nozzle;
said nozzle having a peripheral outer wall and said receptacle having a peripheral inner wall;
a circumferential sealing ring disposed between said outer wall and said inner wall, said circumferential sealing ring having a thickness and being compressed by said outer wall and said inner wall in the assembled state;
one of said outer wall or said inner wall having an annular groove with a groove bottom formed therein;
another of said outer wall or said inner wall being disposed at a radial distance from said groove bottom;
said annular groove receiving said sealing ring;
said other of said outer wall or said inner wall having first and second wall sections and a first reduction section reducing the radial distance in the longitudinal direction, said sealing ring being compressed by said first reduction section upon said nozzle being inserted into said receptacle;
said other of said outer wall or said inner wall having a compression section, said compressed sealing ring bearing against said compression section in the assembled state;
said compression section being a wall section directly abutting and compressing said sealing ring in a radial direction in the assembled state;
said first reduction section partially or completely sliding over said sealing ring and compressing said sealing ring upon inserting said nozzle into said receptacle;
said second wall section following said first reduction section in the longitudinal direction and forming at least a part of said compression section; and
said first reduction section being guided completely over said sealing ring in the longitudinal direction, causing said first reduction section to remain longitudinally downstream of said sealing ring and not be part of said compression section in the assembled state, or
said first reduction section remaining in a section of said sealing ring and being part of the compression section in the assembled state.