Auxiliary Battery Case With Smart Power Management
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Solution Overview
Problem
Computing devices face challenges in extending the life of their batteries, particularly non-Customer Replaceable Unit (non-CRU) batteries, which require disassembly for replacement and have limited cycle ratings, necessitating innovative solutions to enhance battery longevity.
Innovation Solution
An auxiliary power case with a rechargeable battery and intelligent power management system, utilizing triggers like temperature, pressure, and voltage to manage battery health, integrated into the computing device or as an add-on, providing extended battery life by intelligently drawing power and accommodating battery expansion without stressing the device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a non-CRU battery is installed in a computing device, then the device can operate with a sealed battery design, but the battery life is limited by fixed cycle ratings and cannot be replaced without disassembly
Solution Approach 1:
The battery system is segmented into two independent components: the original non-CRU battery remaining inside the computing device, and a separate auxiliary power case containing a replaceable CRU battery. This segmentation allows the auxiliary battery to be independently replaced without disassembling the computing device, while the original battery remains sealed and protected.
Solution Approach 2:
The auxiliary power case acts as an intermediary between the user and the computing device's battery system. It provides a buffer that extends overall battery life without requiring modification to the computing device or its original battery, thus maintaining the sealed design while enabling extended operational life.
2Duration of action of moving object
If the battery capacity is increased to extend operational time, then the device can run longer, but the battery expansion may stress and damage the device housing
Solution Approach 1:
The extended battery capacity is extracted from the computing device and placed into a separate auxiliary power case. This removes the expansion stress from the device housing while maintaining the ability to extend operational time. The auxiliary case independently houses the larger battery without constraining the computing device's structural integrity.
Solution Approach 2:
The battery capacity extension is moved to a different spatial dimension - from inside the computing device to an external auxiliary case. This dimensional transition allows for larger battery capacity without increasing the internal volume or creating expansion stress within the computing device's housing.
3Reliability
If intelligent power management is implemented to manage battery health, then battery longevity is extended, but the device complexity increases
Solution Approach 1:
The auxiliary power case incorporates intelligent power management circuitry that autonomously monitors and manages battery health parameters such as temperature, charge cycles, and voltage. This self-service capability extends battery longevity without requiring complex user intervention or additional complexity in the computing device itself.
Solution Approach 2:
The auxiliary power case serves multiple functions: it extends battery capacity, provides intelligent power management, and protects the original battery. By consolidating these functions in a single external unit, the overall system complexity is managed more efficiently than distributing complex power management across the computing device's internal components.
Data Source
AI summary
An auxiliary power case can include a frame; a panel coupled to the frame, where the panel defines at least a portion of a recess; a rechargeable battery disposed at least in part in the recess; and a power interface operatively coupled to the rechargeable battery.