Wireless Charging Storage Box with RF Transmitter
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Solution Overview
Problem
Existing storage solutions for battery packs require physical connections and orientation for charging, which is inconvenient and can lead to durability issues for sensitive electronics.
Innovation Solution
A wireless charging system integrated into a sealable storage box with an RF transmitter in the lid, allowing for wireless charging of battery packs without physical connections or orientation, using a conductive shell for efficient energy transfer and a nested construction for protection, along with a fan system for temperature control and a locking mechanism for security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If physical connections are used for charging battery packs, then charging can be achieved, but durability issues arise for sensitive electronics and orientation requirements reduce convenience
Solution Approach 1:
The patent replaces the mechanical connection system (physical plugs and contacts) with an electromagnetic field-based wireless charging system. The RF transmitter generates electromagnetic fields that induce current in the battery pack's receiver coil, eliminating mechanical connections entirely. This substitution resolves the contradiction by removing the durability issues of physical contacts while maintaining charging functionality without orientation requirements.
2Ease of operation
If wireless charging is implemented, then convenience and durability are improved, but energy transfer efficiency may be reduced
Solution Approach 1:
The patent optimizes wireless charging efficiency by carefully controlling key parameters: the RF transmitter operates at specific frequencies (e.g., 13.56 MHz for NFC or higher frequencies for FOD), the coupling distance is limited to near-field ranges, and the coil geometries are designed for maximum magnetic coupling. These parameter optimizations ensure that energy transfer efficiency remains practical while maintaining the convenience and durability benefits of wireless charging.
3Ease of operation
If RF power transmission is used for wireless charging, then wireless charging is achieved, but heat generation and temperature control become challenges
Solution Approach 1:
The patent introduces thermal management intermediaries between the RF transmitter and the battery pack to handle heat generation. These may include thermal interface materials, heat sinks, or active cooling systems that act as intermediaries to transfer and dissipate heat away from sensitive components. This allows the wireless charging system to operate effectively while maintaining temperature control and preventing overheating.
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
Enables convenient, efficient, and secure wireless charging of battery packs in any orientation, with improved durability and temperature management, minimizing energy wastage and ensuring safe operation.
Implementation Method 1
a transmitter integrated in the lid. The system may also include a power cord and plug for connecting to a source of AC power, for example, a mains line AC outlet or a portable power generator. The plug/cord provides AC power to the AC/DC/RF converter for generating the RF power
Implementation Method 2
using a conductive shell for efficient energy transfer
Implementation Method 3
along with a fan system for temperature control
Data Source
AI summary
This application relates to a system and method for wirelessly charging battery packs. More particularly, the application relates to a system and method for wirelessly charging battery packs stored in a container. In one implementation, the system includes a sealable storage box having a transmitter for transmitting RF power to at least one battery pack stored in the storage box.