Lightweight electronic system for automotive applications and method

Patent metadata

Field	Value
Publication number	US-9456531-B2
Application number	US-201213668461-A
Country	US
Kind code	B2
Filing date	Nov 5, 2012
Priority date	Aug 18, 2006
Publication date	Sep 27, 2016
Grant date	Sep 27, 2016

Abstract

A lightweight audio player for vehicular application is virtually “fastenerless” and includes a fold-up case formed of polymer based material molded to provide details to accept audio devices, as well as the circuit boards required for electrical control and display. The case is of composite structure, including an insert molded electrically conductive wire mesh screen. The wire mesh provides shielding and grounding of the circuit boards via exposed wire mesh pads and adjacent ground clips. Side wall closure members define self-engaging attachment features for affixing to the case, providing electrical self-grounding with the wire screen and thermal grounding with internal power devices. The major components and subassemblies are self-fixturing during the final assembly process, eliminating the need for dedicated tools, fixtures and assembly equipment.

First claim

What is claimed is:

1. An automotive audio system housing assembly comprising:
a box-like case having at least four wall portions and at least one closure member cooperatively enclosing at least one audio component,
wherein said wall portions are integrally formed from a generally planer composite preform blank consisting of at least one layer of relatively rigid polymer material and at least one layer of electrically conductive material capable of shielding said audio component from electrical anomalies such as RFI (radio frequency interference), EMI (electromagnetic interference), BCI (bulk current injection), and ESD (electrostatic discharge), and
wherein adjacent pairs of said wall portions are interconnected by living hinges and folded at respective right angles to form said case, wherein said living hinges each comprise a continuous portion of said layer of electrically conductive material integrally bridging said adjacent wall portions;
said audio component and at least one of said wall portions defining respective cooperating self-engagement features integrally formed therein operative to mount said audio component;
respective pairs of cooperating engagement features integrally formed with said preform blank to retain said case in a three-dimensional configuration; and
at least one closure member affixed to four contiguous wall portion edges to effect closure of said case.

2. The automotive audio system audio assembly of claim 1 , wherein said at least four wall portions comprise a front wall portion, top and bottom wall portions and a rear wall portion.

3. The automotive audio system audio assembly of claim 2 , wherein said front, top, bottom and rear wall portions each define a leading edge, a trailing edge and opposed side edges,
wherein at least one of said engagement features are integrally formed on an inner surface of said front wall portion adjacent said front wall portion leading edge,
wherein the trailing edge of said front wall portion is integrally interconnected to the leading edge of said top or bottom wall portion by a first living hinge,
wherein the trailing edge of said top or bottom wall portion is integrally interconnected to the leading edge of said rear wall portion by a second living hinge,
wherein the trailing edge of said rear wall portion is integrally interconnected to the leading edge of the other of said top or bottom wall portion by a third living hinge, and
wherein the trailing edge of the other of said top or bottom wall portion integrally forms a cooperating engagement feature operative to lockingly engage the engagement feature of said front wall portion.

4. The automotive audio system audio assembly of claim 1 , wherein said living hinge comprises a segment of said layer of polymer material integrally bridging said adjacent wall portions.

5. An automotive electronic system housing assembly comprising:
a box-like case having at least four wall portions and at least one closure member cooperatively enclosing at least one electronic component,
wherein said wall portions are integrally formed from a generally planer composite preform blank consisting of at least one layer of relatively rigid polymer material and at least one layer of electrically conductive material capable of shielding said electronic component, and
wherein adjacent pairs of said wall portions are integrally interconnected by hinge portions and folded at respective right angles to form said case, wherein said hinge portions each comprise a continuous portion of said layer of electrically conductive material integrally bridging said adjacent pairs of said wall portions;
said electronic component and at least one of said wall portions defining respective cooperating self-engagement features integrally formed therein operative to mount said electronic component;
respective pairs of cooperating engagement features integrally formed with said preform blank to retain said case in a three-dimensional configuration; and
at least one closure member affixed to four contiguous wall portion edges to effect closure of said case.

6. The automotive electronic system assembly of claim 5 , wherein said at least four wall portions comprise a front wall portion, top and bottom wall portions and a rear wall portion.

7. The automotive electronic system assembly of claim 6 , wherein said front, top, bottom and rear wall portions each define a leading edge, a trailing edge and opposed side edges,
wherein at least one of said engagement features are integrally formed on an inner surface of said front wall portion adjacent said front wall portion leading edge,
wherein the trailing edge of said front wall portion is integrally interconnected to the leading edge of said top or bottom wall portion by a first hinge portion,
wherein the trailing edge of said top or bottom wall portion is integrally interconnected to the leading edge of said rear wall portion by a second hinge portion,
wherein the trailing edge of said rear wall portion is integrally interconnected to the leading edge of the other of said top or bottom wall portion by a third hinge portion, and
wherein the trailing edge of the other of said top or bottom wall portion integrally forms a cooperating engagement feature operative to lockingly engage the engagement feature of said front wall portion.

8. The automotive audio system audio assembly of claim 5 , wherein said hinge portion comprises a segment of said layer of polymer material integrally bridging said adjacent wall portions.

Assignees

• Delphi Tech Inc

Inventors

• Snider Chris R
• Jackson Mark A

Classifications

• H05K1/0215

  Grounding of printed circuits by connection to external grounding means · CPC title

• Y10T16/547

  Cross-Sectional Technologies · mapped topic

• B29C59/16

  by wave energy or particle radiation {, e.g. infrared heating (B29C59/007 takes precedence)} · CPC title

• Y10T16/5476

  Cross-Sectional Technologies · mapped topic

• Y10T29/49128

  Assembling formed circuit to base · CPC title