Glass-Ceramic Housing With Integrated Wireless Charging Coil Contacts
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Portable information handling systems face challenges in integrating wireless charging due to limited space, thermal management, and robustness, particularly with thin housings that compromise performance and aesthetics.
Innovation Solution
A wireless charging coil and coil interface traces are integrated into a glass ceramic housing, with conductive material communicating through glass via openings and terminating with pogo pins on a printed circuit board assembly, allowing for power transfer and cooling while blending into the housing design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If housing thickness is reduced to minimize footprint and weight, then portability is improved, but thermal management capability deteriorates due to less efficient rejection of excess thermal energy
Solution Approach 1:
The patent combines the wireless charging coil housing with a heat sink structure into a single integrated component. The housing serves dual functions: containing the wireless charging coil and dissipating heat from processing components. This merging allows thin housing design while maintaining thermal management capability through the heat dissipation fins integrated into the housing structure.
2Volume of moving object
If housing thickness is reduced to minimize footprint, then portability is improved, but wireless signal transmission quality deteriorates due to limited space for antennae deployment
Solution Approach 1:
The patent extends the housing vertically with integrated heat dissipation fins, utilizing the Z-dimension rather than expanding horizontal footprint. This dimensional transition allows the housing to maintain thin profile while providing adequate space for wireless antennae deployment and signal transmission in the vertical direction, resolving the contradiction between compact volume and wireless reliability.
3Volume of moving object
If housing thickness is reduced to minimize footprint, then portability is improved, but robustness deteriorates making the housing more susceptible to failure
Solution Approach 1:
The patent employs composite material construction for the housing, combining materials with different properties to achieve both thin profile and high strength. The integrated heat sink structure uses materials with high thermal conductivity while maintaining structural integrity, allowing the housing to be thin yet robust against failure from drops or impacts.
4Volume of moving object
If housing thickness is reduced to minimize footprint, then portability is improved, but integration of high performance components becomes more difficult due to reduced housing interior space
Solution Approach 1:
The patent implements nested positioning where the wireless charging coil is integrated within the housing structure, and processing components are mounted on the housing interior surface. This nesting arrangement maximizes space utilization within the thin housing, allowing high-performance components to be integrated without increasing overall housing volume or complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enables a low-profile, aesthetically pleasing integration of wireless charging in portable information handling systems, providing reliable power transfer and effective cooling, thus addressing thermal and robustness issues while maintaining performance.
Implementation Method 1
A wireless charger integrates with a housing of the portable information handling system
Implementation Method 2
Cooling channels formed between the glass ceramic interior and the plastic case provide cooling airflow to cool the wireless charging coil
Data Source
AI summary
A portable information handling system glass ceramic housing integrates plural wireless charging coils on one side and plural coil interface traces on an opposing side that interface with conductive material disposed in through glass via openings. Conductive contacts interfaced with the coil interface traces and exposed at the glass ceramic housing interior couple to a printed circuit board assembly through pogo pins that bias against the conductive contacts to communicate power from the wireless charging coils to the charger of the information handling system. The conductive contacts co-locate with a logo etched into the glass ceramic housing to provide an aesthetically pleasing wireless charging solution.