Universal Battery Pack with Retractable Plugs
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Solution Overview
Problem
Existing phone chargers have a short shelf life due to rapid changes in phone designs, are not comfortably portable, and often require tangled cables with connectors, leading to inconvenience.
Innovation Solution
A slim, standardized, rectangularly shaped battery pack with a window for receiving a charger or accessories, featuring a rechargeable internal battery, retractable charging plugs, and a magnetic attachment system for easy use with various devices, including a dual-sided case for secure holding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If battery packs are made in various rectangular configurations, then they can provide sufficient capacity, but they are not comfortable to hold in a pocket
Solution Approach 1:
The patent transitions from traditional thick rectangular battery packs to an ultra-slim profile with thickness of 6.35mm or less. By reducing the thickness dimension while maintaining length and width, the battery pack fits comfortably in pockets while preserving adequate capacity through optimized internal cell arrangement and high-density materials.
2Adaptability or versatility
If chargers are integrated with telephone cases, then they provide combined functionality, but they have very short shelf life due to rapid changing phone designs
Solution Approach 1:
The patent separates the battery pack from the telephone case, making them independent components. The universal battery pack design with standardized dimensions and multiple connector options can work with various phone models without requiring integration into specific case designs, thereby extending shelf life while maintaining versatility.
Solution Approach 2:
The battery pack is designed as a universal accessory that can charge multiple phone models through different connector types (Lightning, USB-C, Micro-USB). This multi-functionality allows a single design to serve various devices across different generations, preventing obsolescence and extending commercial shelf life.
3Ease of operation
If dangling cables with connectors are used, then they enable charging connection, but they lead to inconvenience and tangled wires
Solution Approach 1:
The patent incorporates retractable cables that can be extended when needed and retracted into the battery pack body when not in use. This nesting principle eliminates tangled wires and reduces device complexity by providing a clean, integrated cable management solution while maintaining charging connectivity.
4Ease of operation
If the battery pack is made very thin, then it can be carried in a wallet or pocket, but it reduces internal space for battery capacity
Solution Approach 1:
The patent employs high-density lithium-ion battery cells and advanced composite materials to maximize energy density within the constrained 6.35mm thickness. By using higher capacity materials and optimized cell chemistry, adequate battery capacity is achieved despite the reduced internal volume, balancing portability with energy storage requirements.
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
The solution provides a versatile, compact, and convenient charging solution that is compatible with multiple devices, reduces cable tangling, and ensures secure attachment, enhancing usability and compatibility with future phone configurations.
Implementation Method 1
a magnetic attachment system for easy use with various devices
Data Source
AI summary
A universal charging accessory for mobile devices. The accessory has a generally flat and thin body configured to lie flat against the flat rear side of the mobile device and includes an internal rechargeable battery, two charging plugs that are configured to be electronically coupled to the charging plug of the mobile device, with the charging plugs being retrievably stowed inside the body of the accessory and to be withdrawn as needed to charge the mobile device. The accessory has a window formed in the body of the charging accessory which receives, interchangeably, a plug-in module that can be inserted into an AC socket to charge the internal battery as well as the cellphone battery.