Loudspeaker cover

Patent metadata

Field	Value
Publication number	US-9756409-B2
Application number	US-201514854148-A
Country	US
Kind code	B2
Filing date	Sep 15, 2015
Priority date	Sep 17, 2014
Publication date	Sep 5, 2017
Grant date	Sep 5, 2017

Abstract

A loudspeaker cover ( 1 ) has a carrier frame ( 2 ) and a sound-permeable loudspeaker covering panel ( 3 ) attached to the carrier frame ( 2 ). A light exit opening ( 7 ) is formed between the loudspeaker covering panel ( 3 ) and the carrier frame ( 2 ). A lighting device ( 4 ) having at least one lightguide ( 40 ) and at least one lighting unit are arranged so that, during operation, light can be input into the lightguide ( 40 ). The lightguide ( 40 ) is arranged between the carrier frame ( 2 ) and the loudspeaker covering panel ( 3 ) and extends in the circumferential direction of the carrier frame ( 2 ). As a result, at least a portion of the light exiting a lateral surface of the lightguide ( 40 ) can propagate into the surroundings through the light exit opening ( 7 ). The carrier frame ( 2 ) is connected at least in certain sections in a materially joined fashion to the loudspeaker covering panel ( 3 ).

First claim

What is claimed is:

1. A loudspeaker cover, comprising:
a carrier frame having an outer periphery and a concavity inward of the outer periphery;
a sound-permeable loudspeaker covering panel attached to the carrier frame and having an outer periphery spaced radially inward of an outer periphery of the concavity in the carrier frame so that a light exit opening is formed between the outer periphery of the loudspeaker covering panel and the outer periphery of the concavity in the carrier frame;
a lighting device having at least one light guide and at least one lighting unit arranged in such a way that, during operation, light from the lighting unit is input into the light guide, the light guide being arranged in the concavity of the carrier frame and extending in a circumferential direction of the carrier frame at a position radially inward of the light exit opening and between the carrier frame and the loudspeaker covering panel; and
a concave reflector in the concavity at a position radially out from the light guide so that at least a portion of the light exiting a lateral surface of the light guide is reflected by the reflector and propagates into the surroundings through the light exit opening,
wherein a plurality of locations on the carrier frame are connected in a materially joined fashion to the loudspeaker covering panel.

2. The loudspeaker cover of claim 1 , wherein the carrier frame is welded to the loudspeaker covering panel.

3. The loudspeaker cover of claim 1 , wherein the carrier frame is bonded to the loudspeaker covering panel.

4. The loudspeaker cover of claim 1 , wherein the carrier frame is shaped to be mounted on a loudspeaker housing or in a recess in a passenger compartment trim of a motor vehicle.

5. The loudspeaker cover of claim 4 , wherein the outer periphery of the carrier frame is configured so that the carrier frame is locked frictionally in the recess in the passenger compartment trim.

6. The loudspeaker cover of claim 1 , wherein the reflector has a reflection surface that extends into the light exit opening.

7. The loudspeaker cover of claim 1 , wherein the lighting device has a diffuser that extends at least partly around the light guide at positions between the light guide and the light exit opening and that diffusely scatters the light exiting the lateral surface of the light guide.

8. The loudspeaker cover of claim 7 , wherein the diffuser is connected in a materially joined fashion to the carrier frame.

9. The loudspeaker cover of claim 8 , wherein the light guide is retained between the carrier frame, the loudspeaker covering panel and the diffuser.

10. The loudspeaker cover of claim 9 , further comprising an intermediate member between the light guide and the loudspeaker covering panel for minimizing direct irradiation of flight from the light guide through the loudspeaker covering panel.

11. The loudspeaker cover of claim 8 , wherein the carrier frame is formed with a plurality of plug-through openings, and the diffuser has a plurality of connecting projections extending through the plug-through openings in the carrier frame, the connecting projections of the diffuser being connected in a materially joined fashion to the carrier frame at the plug-through openings.

12. The loudspeaker cover of claim 1 wherein the carrier frame has a plurality of receptacle openings and the loudspeaker covering panel has a plurality up connection projections inserted respectively into the receptacle openings of the carrier frame, the connection projections of the loudspeaker covering′ panel being connected in a materially joined fashion to the carrier frame at in the receptacle openings.

13. The loudspeaker cover of claim 1 wherein the carrier frame has a plurality of receptacle openings and the reflector has a plurality up connection projections inserted respectively into the receptacle openings of the carrier frame, the connection projections of the reflector being connected in a materially joined fashion to the carrier frame at in the receptacle openings.

14. A loudspeaker cover, comprising:
a carrier frame having an outer periphery and a concavity inward of the outer periphery;
a sound-permeable loudspeaker covering panel attached to the carrier frame and having an outer periphery spaced radially inward of an outer periphery of the concavity in the carrier frame so that a light exit opening is formed radially outward of the outer periphery of the loudspeaker covering panel and radially inward of the outer periphery of the concavity in the carrier frame;
a lighting device having at least one light guide and at least one lighting unit arranged in such a way that, during operation, light from the lighting unit is input into the light guide, the light guide being arranged in the concavity of the carrier frame and extending in a circumferential direction of the carrier frame at a position radially inward of the light exit opening and between the carrier frame and the loudspeaker covering panel;
a diffuser extending circumferentially around the light guide and inward of the light exit opening; and
a concave reflector in the concavity at a position radially out from the diffuser so that at least a portion of the light exiting the diffuser is reflected by the reflector and propagates into the surroundings through the light exit opening,
wherein a plurality of locations on the carrier frame are connected in a materially joined fashion to the loudspeaker covering panel.

15. The loudspeaker cover of claim 14 , wherein the light guide is retained between the carrier frame, the loudspeaker covering panel and the diffuser.

16. The loudspeaker cover of claim 15 , further comprising a wall circumferentially inward of the light guide and extending between the carrier frame and the loudspeaker covering panel.

Assignees

• Porsche Ag
• Porsche Ag

Inventors

• Hofmann Peter

Classifications

• H04R1/028 Primary

  associated with devices performing functions other than acoustics, e.g. electric candles · CPC title

• H04R1/02

  Casings; Cabinets {; Supports therefor;} Mountings therein (H04R1/28 takes precedence {; attachments for microphones H04R1/08; mounting of transducers in earpieces H04R1/1075}) · CPC title

• F21V33/0056

  Audio equipment, e.g. music instruments, radios or speakers · CPC title

• H04R2499/13

  Acoustic transducers and sound field adaptation in vehicles · CPC title

• B60R11/0217 Primary

  for loud-speakers · CPC title