LIGHTWEIGHT AUDIO SYSTEM FOR AUTOMOTIVE APPLICATIONS

摘要

PROBLEM TO BE SOLVED: To provide a lightweight radio/CD player for vehicular application, which is "fastenerless" and provided with details to accept playback mechanisms and audio devices, as well as circuit boards required for electrical control and display.SOLUTION: The player comprises a case and frontal interface of a composite structure including an insert molded electrically conductive wire mesh screen. The PCB architecture is divided into first board carrying common circuit components in a surface mount configuration suitable for high volume production, and second board carrying application specific circuit components in a wave soldered stick mount configuration. Major components and subassemblies are self-fixturing during the final assembly process, eliminating the need for dedicated tools etc. The major components and subassemblies self-interconnect by integral guide and self-connection mechanisms of a slide lock and a snap lock. The radio architecture includes improved push buttons employing 4-bar living hinge linkage and front loaded decorative trim buttons.