Invisible headliner microphone
AssigneeHarman Becker Automotive Systems GmbH
InventorsMarco Salvatore Riemann, Darin Krajewski, Marian Avram, Viktor Dobos
Life of this patent
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Abstract
A microphone assembly includes a shaft element that is configured to be received in an opening defined by a base substrate layer of a headliner. The shaft element defines an air path. The microphone assembly includes a microphone element mounted on a circuit board within a housing. The microphone element is aligned with the air path such that the air path directs sound from the cabin to the microphone element. A vehicle cabin side of the headliner is covered by an acoustically transparent layer such that the microphone assembly is not visible within the vehicle cabin.
Claims9
A headliner assembly for a vehicle comprising:
- a headliner comprised of an acoustically transparent layer that is exposed to a cabin of the vehicle and a base substrate layer defining a first opening;
- and
- a microphone assembly including a housing that defines an integrally-formed hollow shaft element that is configured to be received by the first opening to define an air path, and a microphone element mounted to a circuit board and aligned with the air path such that the air path directs sound from the cabin to the microphone element,
- wherein the circuit board defines a second opening that is axially aligned with the microphone element such that the air path directs sound from the cabin through the second opening and to the microphone element.
A headliner assembly for a vehicle comprising:
- a headliner comprised of an acoustically transparent layer that is exposed to a cabin of the vehicle and a base substrate layer defining a first opening;
- a microphone assembly including a housing that defines an integrally-formed hollow shaft element that is configured to be received by the first opening to define an air path, and a microphone element mounted to a circuit board and aligned with the air path such that the air path directs sound from the cabin to the microphone element;
- and
- a gasket element installed between the circuit board and the shaft element and extending the air path,
- wherein an inner surface of the gasket element is conically-shaped with a radius that matches that of the shaft element at a contact point with the shaft element and that decreases toward the circuit board.
Dependencies are inferred from the claim text.