Stackable Battery Pack Wireless Charging
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Solution Overview
Problem
Conventional portable battery packs for electronic devices are inconvenient due to the need for cables, which require storage, can be damaged by environmental factors, and complicate recharging processes.
Innovation Solution
A rechargeable battery pack system with wireless charging capabilities, featuring inductive coils and electrical contacts that allow for stackable battery packs and a charging base, eliminating the need for cables and enabling secure, efficient power transfer and recharging without physical connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional battery packs use cables for charging, then power transfer is reliable, but the device becomes inconvenient due to cable storage and handling requirements
Solution Approach 1:
The patent extracts the cable from the charging system by implementing wireless charging technology. The battery pack includes a wireless charging interface that eliminates the need for physical cable connections, thereby removing the complexity of cable storage and handling while maintaining reliable power transfer through electromagnetic induction.
Solution Approach 2:
The patent replaces the mechanical cable connection system with a wireless electromagnetic field-based power transfer system. The charging base and battery pack utilize inductive coupling to transfer power without physical contact, eliminating the mechanical complexity associated with cables and connectors.
2Reliability
If battery packs have exposed electrical connectors, then power transfer is efficient, but the connectors are vulnerable to environmental damage
Solution Approach 1:
The patent extracts exposed electrical connectors from the battery pack design by implementing wireless charging. The electrical contacts are eliminated in favor of a wireless power transfer interface, removing the vulnerability to environmental factors such as moisture, dust, and corrosion while maintaining efficient power transfer through the wireless charging mechanism.
Solution Approach 2:
The patent replaces the mechanical electrical connector system with a wireless electromagnetic power transfer system. This substitution eliminates the exposed metal contacts that are susceptible to environmental damage, while achieving reliable power transfer through inductive coupling between the charging base and battery pack.
3Area of stationary object
If multiple battery packs are stacked for charging, then space utilization is improved, but cable management becomes more complex
Solution Approach 1:
The patent extracts cables from the multi-pack charging system by implementing wireless charging. Multiple battery packs can be stacked on the charging base without requiring individual cable connections, as power is transferred wirelessly through the charging base's wireless charging interface, thereby eliminating cable management complexity while maintaining efficient space utilization.
Solution Approach 2:
The patent replaces the mechanical cable management system with a wireless power transfer system that can handle multiple stacked battery packs simultaneously. The charging base provides wireless power to each pack in the stack through electromagnetic induction, eliminating the need for complex cable routing and connection management while maximizing charging space utilization.
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 system simplifies recharging processes, enhances durability by reducing connector exposure, and allows for compact and aesthetically pleasing design, while maintaining compatibility with various devices and charging standards.
Implementation Method 1
an inductive coil configured for wirelessly transmitting at least a portion of the received electrical power to one of the electronic devices through the wireless charging interface of the electronic device
Implementation Method 2
Each battery pack may also include an inductive coil configured for wirelessly transmitting electrical power to an electronic device when the electronic device is in proximity to the battery pack
Data Source
AI summary
A rechargeable battery pack includes a rechargeable battery, electrical circuitry, and an inductive coil for wirelessly transmitting power to an electronic device. The rechargeable battery pack further includes a first set of electrical contacts to interface with electrical contacts of a charging base. The rechargeable battery pack is programmed to transmit a first data communication including a first identification code to the charging base through the first set of electrical contacts and receive first electrical power from the charging base if the identification code is verified. The rechargeable battery pack includes a second set of electrical contacts positioned on a top surface of the rechargeable battery pack for providing second electrical power to a second instance of the rechargeable battery pack. The second electrical power provided to the second instance of the rechargeable battery pack is a portion of the first electrical power received from the charging base.