Lightweight audio system for automotive applications and method

• US 9,013,881 B2
• Filed: 04/18/2013
• Issued: 04/21/2015
• Est. Priority Date: 08/18/2006
• Status: Expired due to Fees

• Current Assignee: Aptiv Technologies Limited (BorgWarner Incorporated)
• Original Assignee: Delphi Technologies, Inc. (BorgWarner Incorporated)
• Inventors: Snider, Chris R., Gupta, Vineet, Huntzinger, Joseph K., Coady, Michael G.
• Primary Examiner(s): Chen, Xiaoliang
• Application Number:
  US13/865,458
• Publication Number:
  US 20140146482A1
• Time in Patent Office: 733 Days
• Field of Search: 361/724, 361/679.38, 360/69, 360/85, 360/92.1, 360/96.51, 360/96.61, 360/98.01, 360/99.04, 360/137, 720/606, 720/612, 720/623, 720/627, 720/632, 720/646, 720/681
• US Class Current: 361/724
• CPC Class Codes: B29C 59/16 by wave energy or particle radiation , e.g. infrared heating B29C59/007 takes precedence
• CPC Class Codes: B60R 11/02 for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
• CPC Class Codes: G06F 11/00 Error detection; Error correction; Monitoring error detection, correction or monitoring in information storage based on relative movement between record carrier and transducer G11B20/18; monitoring, i.e. supervising the progress of recording or reproducing G11B27/36; in static stores G11C29/00
• CPC Class Codes: H04B 1/082 to be used in vehicles H04B1/086 takes precedence; holding or mounting accessories B60R11/02
• CPC Class Codes: H04R 1/02 Casings; Cabinets ; Supports therefor; Mountings therein H04R1/28 takes precedence ; attachments for microphones H04R1/08; mounting of transducers in earpieces H04R1/1075
• CPC Class Codes: H05K 1/0215 Grounding of printed circuits by connection to external grounding means
• CPC Class Codes: H05K 1/141 One or more single auxiliary printed circuits mounted on a main printed circuit, e.g. modules, adapters H05K1/142 and H05K1/147 take precedence
• CPC Class Codes: H05K 13/00 Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
• CPC Class Codes: H05K 2201/09081 Tongue or tail integrated in planar structure, e.g. obtained by cutting from the planar structure
• CPC Class Codes: H05K 2201/10386 Clip leads; Terminals gripping the edge of a substrate
• CPC Class Codes: H05K 2201/10446 Mounted on an edge soldering edge mounted components H05K3/3405; edge terminals H05K2201/1034
• CPC Class Codes: H05K 5/0217 Mechanical details of casings covers, lids, hoods or members for covering apertures H05K5/03
• CPC Class Codes: H05K 5/0221 Locks; Latches
• CPC Class Codes: H05K 5/0226 Hinges
• CPC Class Codes: H05K 7/20409 Outer radiating structures on heat dissipating housings, e.g. fins integrated with the housing
• CPC Class Codes: H05K 7/20418 the radiating structures being additional and fastened onto the housing
• CPC Class Codes: H05K 7/20436 Inner thermal coupling elements in heat dissipating housings, e.g. protrusions or depressions integrally formed in the housing
• CPC Class Codes: H05K 9/0007 Casings standardised racks H05K9/0062
• CPC Class Codes: H05K 9/0047 being rigid plastic containers having conductive particles, fibres or mesh embedded therein
• CPC Class Codes: H05K 9/0079 Electrostatic discharge protection, e.g. ESD treated surface for rapid dissipation of charges
• CPC Class Codes: H05K 9/0081 : Electromagnetic shielding materials, e.g. EMI, RFI shielding H05K9/0003 takes precedence
• CPC Class Codes: Y10T 29/49002 : Electrical device making
• CPC Class Codes: Y10T 29/49124 : On flat or curved insulated base, e.g., printed circuit, etc.
• CPC Class Codes: Y10T 29/49126 : Assembling bases
• CPC Class Codes: Y10T 29/49128 : Assembling formed circuit to base
• CPC Class Codes: Y10T 29/4913 : Assembling to base an electrical component, e.g., capacitor, etc.
• CPC Class Codes: Y10T 29/49169 : Assembling electrical component directly to terminal or elongated conductor
• CPC Class Codes: Y10T 29/49172 : by molding of insulating material
• CPC Class Codes: Y10T 29/4957 : Sound device making
• CPC Class Codes: Y10T 29/49826 : Assembling or joining
• CPC Class Codes: Y10T 29/49861 : Sizing mating parts during final positional association
• CPC Class Codes: Y10T 29/5313 : Means to assemble electrical device
• CPC Class Codes: Y10T 403/70 : Interfitted members
• CPC Class Codes: Y10T 428/24289 : Embedded or interlocked
• CPC Class Codes: Y10T 74/20396 : Hand operated

Abstract

A lightweight radio/CD player for vehicular application includes a case and frontal interface formed of polymer based material molded to provide details to accept audio devices and radio receivers, as well as the circuit boards required for electrical control and display. The case and frontal interface are of composite structure, including an insert molded electrically conductive wire mesh screen that has been pre-formed to contour with the molding operation. The wire mesh provides shielding and grounding of the circuit boards via exposed wire mesh pads and adjacent ground clips.

Claims

1. A lightweight automotive audio system comprising:

a housing assembly substantially formed of polymer based material including a box-like case having integrally formed side, top, bottom and rear wall portions and a front opening disposed generally symmetrically about an assembly axis, said housing assembly further including a front closure member cooperating with the case to enclose audio system subassemblies within a cavity defined by said housing assembly;

a front trim panel integrating operator controls and displays;

at least one audio component;

a media drawer comprising a front face, a platform and guide means disposed within said case and selectively displacable with respect thereto between a closed position wherein said drawer front face is substantially coplanar with the radio trim panel, and an open position; and

a system of guide features integrally formed with said case and closure member operative to effect self-alignment and engagement of said audio component and said media drawer in an orientation substantially parallel to said assembly axis.

2. The audio system of claim 1, wherein said media drawer includes personal portable digital device hold-down means.

3. The audio system of claim 2, wherein said hold-down means comprise self-latching tabs integrally formed with said platform.

4. The audio system of claim 1, wherein said media drawer further comprises laterally opposed sidewalls integrally formed with said front face and platform.

5. The audio system of claim 4, wherein said media drawer further comprises a back wall integrally formed with said platform and sidewalls.

6. The audio system of claim 1, further comprising a latch mechanism operative to retain said media drawer in said closed position.

7. The audio system of claim 6, wherein said latch mechanism comprises a “

push-push”

device operable, upon momentary displacement of the media drawer by an operator from the closed position, to release the media drawer for displacement to the open position.

8. The audio system of claim 6, further comprising means continuously resiliently urging said media drawer toward the open position.

9. The audio system of claim 1, wherein said housing assembly and media drawer are formed of a composite of relatively rigid polymer material and electrically conductive material operable to shield said at least one audio component from electrical anomalies including RFI (radio frequency interference), EMI (electromagnetic interference), BCI (bulk current injection), and ESD (electrostatic discharge).

10. The audio system of claim 9, wherein said electrically conductive material comprises a wire screen insert molded within said polymer material and extending substantially continuously along the wall portions of said case, said front closure member, and drawer front face.