Removable Faceplate for Vehicle Infotainment Network Access Device
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Solution Overview
Problem
Current motor vehicle infotainment systems require extensive disassembly and use of aftermarket components for upgrades or repairs, complicating the process of adding, changing, or upgrading factory-installed electronic devices like network access devices, which often necessitate external antennas and bulky installations.
Innovation Solution
A design where the network access device and antenna are removably attached to a faceplate outside the head unit, using plug-in connectors and a plastic bezel that allows for easy replacement or upgrade without damaging components, eliminating the need for external antennas and coaxial cables by positioning them behind the bezel for improved radio frequency signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the network access device is installed inside the head unit, then the installation is integrated into the factory system, but the device cannot be easily upgraded or repaired without extensive disassembly
Solution Approach 1:
The faceplate assembly is segmented from the head unit, allowing the network access device to be mounted on the removable faceplate rather than being permanently integrated into the head unit. This segmentation enables the device to be upgraded by simply removing the faceplate assembly without disassembling the entire head unit or dashboard.
2Device complexity
If external antennas are used for the network access device, then the device can be installed, but bulky components and extensive wiring are required
Solution Approach 1:
The antenna is merged with the faceplate assembly, becoming an integrated component rather than a separate external attachment. This combining eliminates the need for separate antenna mounting brackets, additional wiring harnesses, and complex external antenna installations, reducing overall system complexity and weight.
3Adaptability or versatility
If the network access device is permanently integrated into the head unit, then the factory installation is stable, but after-sale upgrades require extensive disassembly
Solution Approach 1:
The faceplate assembly is designed with dynamic removability, allowing it to be easily detached and reattached. This dynamic design enables the network access device to be upgraded or repaired by simply removing the faceplate assembly from the head unit front, providing flexibility for after-sale modifications while maintaining a clean factory installation appearance.
4Ease of operation
If the antenna is positioned outside the bezel, then the installation is simple, but the radio frequency signal transmission is compromised
Solution Approach 1:
The antenna is nested within the bezel structure, positioned behind the bezel face but still functional. This nesting arrangement allows the antenna to be concealed within the aesthetic boundaries of the bezel while maintaining its RF transmission capabilities, eliminating the need for external antenna mounts and improving signal transmission quality.
Data Source
AI summary
The front side of a vehicle infotainment system head unit is provided with a removable faceplate that carries a network access device such as a cell phone or GPS receiver and an associated antenna. A removable user-interface display panel, also referred to herein as a display screen, is also carried by the faceplate. When the head unit and faceplate are assembled into a vehicle dashboard, a removable bezel conceals the network access device, antenna and provides access to the display panel. The network access device and its antenna are thus readily accessible by simply removing the bezel.