US 12,244,987 B2
Microphone assembly
Giovanni Monteleone, Créteil (FR)
Assigned to PEIKER acustic GmbH, Friedrichsdorf (DE)
Appl. No. 17/623,526
Filed by PEIKER acustic GmbH, Friedrichsdorf (DE)
PCT Filed Jun. 23, 2020, PCT No. PCT/EP2020/067445
§ 371(c)(1), (2) Date Dec. 28, 2021,
PCT Pub. No. WO2020/260247, PCT Pub. Date Dec. 30, 2020.
Claims priority of application No. 10 2019 117 523.2 (DE), filed on Jun. 28, 2019.
Prior Publication US 2022/0360877 A1, Nov. 10, 2022
Int. Cl. H04R 9/08 (2006.01); H04R 1/02 (2006.01); H04R 1/04 (2006.01); H04R 1/08 (2006.01); H04R 3/00 (2006.01)
CPC H04R 1/086 (2013.01) [H04R 1/04 (2013.01); H04R 3/00 (2013.01); H04R 2499/13 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A microphone assembly for exterior use on vehicles, comprising:
a housing base including at least one compartment;
a printed circuit board assembly PCBS with at least one acoustic membrane;
a sealing cover to at least partially overlap with the compartment;
wherein the sealing cover comprises at least one opening with said opening at least partially aligned with said acoustic membrane;
a housing cover;
wherein said housing cover comprises:
a first grid at least partially aligned with said opening in the sealing cover, and
a shielding cover,
wherein said shielding cover comprises a second grid at least partially aligned with said opening in the sealing cover,
wherein the first grid and the second grid are aligned in parallel in offset in order to provide a labyrinth path without straight passthrough passages from the exterior of the microphone assembly to the acoustic membrane, and
wherein the sealing cover comprises a rim area separating a wall portion of the housing cover from a socket portion of the housing base.
 
8. A microphone assembly for exterior use on vehicles, comprising:
a housing base including at least one compartment;
a printed circuit board assembly PCBS with at least one acoustic membrane;
a sealing cover to at least partially overlap with the compartment;
wherein the sealing cover comprises at least one opening with said opening at least partially aligned with said acoustic membrane;
a housing cover;
wherein said housing cover comprises:
a first grid at least partially aligned with said opening in the sealing cover, and
a shielding cover,
wherein said shielding cover comprises a second grid at least partially aligned with said opening in the sealing cover,
wherein the first grid and the second grid are aligned in parallel in offset in order to provide a labyrinth path without straight passthrough passages from the exterior of the microphone assembly to the acoustic membrane, and
wherein the sealing cover comprises three sealing rings, being arranged on the PCBA facing side of the sealing cover and being coaxially aligned with the opening and radially extended from the center of the opening.
 
9. A microphone assembly for exterior use on vehicles, comprising:
a housing base including at least one compartment;
a printed circuit board assembly PCBS with at least one acoustic membrane;
a sealing cover to at least partially overlap with the compartment;
wherein the sealing cover comprises at least one opening with said opening at least partially aligned with said acoustic membrane;
a housing cover;
wherein said housing cover comprises:
a first grid at least partially aligned with said opening in the sealing cover, and
a shielding cover,
wherein said shielding cover comprises a second grid at least partially aligned with said opening in the sealing cover,
wherein the first grid and the second grid are aligned in parallel in offset in order to provide a labyrinth path without straight passthrough passages from the exterior of the microphone assembly to the acoustic membrane, and
wherein the sealing cover provides groove means to interact with corresponding sealing ribs on a wall segment of the compartment whereas the sealing ribs provide circumferential contact between the wall segment of the compartment and the groove means of the sealing cover.