Compact Lithium Battery Booster With Wireless Charging and Jump Start
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Solution Overview
Problem
Existing battery boosters are large, heavy, and cumbersome, and there is a need for a compact multifunctional lithium ion battery booster with wireless charging capabilities to address the inconvenience of insufficient vehicle battery charge in remote situations.
Innovation Solution
A portable power pack with a rechargeable lithium ion battery, liquid crystal display, wireless charging coil, USB port, DC port, and power management circuit for jump-starting vehicles, featuring wireless charging through electromagnetic induction or magnetic resonance, and a set of battery cables for secure vehicle coupling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If traditional lead acid battery boosters are used, then sufficient power for jump-starting vehicles is achieved, but the device becomes large, heavy, and cumbersome
Solution Approach 1:
The patent changes the battery chemistry from lead acid to lithium ion, which fundamentally alters the energy density parameter. Lithium ion batteries provide approximately 2-3 times higher energy density per unit weight compared to lead acid batteries, enabling the same power output in a significantly lighter and more compact form factor
Solution Approach 2:
The battery booster is divided into multiple lithium ion battery cells that can be independently arranged and configured. This segmentation allows for optimized power distribution and enables the device to achieve required power output through parallel connection of smaller cells rather than relying on a single large battery
2Adaptability or versatility
If multiple functions are integrated into the battery booster, then versatility is improved, but device complexity increases
Solution Approach 1:
The battery booster is designed with universal interfaces and multiple output modes to serve various functions: jump-starting vehicles via DC port, charging portable electronic devices via USB ports, and wireless charging via electromagnetic induction coil. This multi-functionality is achieved through a modular power management system that can route power to different outputs based on connection detection
Solution Approach 2:
Multiple charging functions (wired USB charging, wireless electromagnetic induction charging, and vehicle jump-starting) are merged into a single integrated device. The power management circuit combines these different power delivery pathways into one unified system, reducing the need for separate devices and simplifying the overall user ecosystem
3Ease of operation
If wireless charging capability is added, then convenience is improved, but energy loss increases
Solution Approach 1:
The power management system dynamically selects between wireless and wired charging modes based on efficiency requirements and user needs. Wireless charging is enabled for convenience when appropriate, while the system can switch to wired USB charging when lower energy loss is prioritized, providing adaptive optimization of the contradiction between convenience and energy efficiency
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 portable power pack provides a compact, efficient solution for jump-starting vehicles and charging electronic devices, with wireless charging functionality and a user-friendly interface, enhancing convenience and reducing the need for physical connections.
Implementation Method 1
a wireless charging coil positioned in or on the housing and configured to wirelessly couple with an external wireless charging coil of an external device through electromagnetic induction in accordance with the Qi wireless power transfer standard
Implementation Method 2
a rechargeable lithium battery positioned in the housing
Data Source
AI summary
A portable power pack having a housing, a rechargeable lithium battery positioned in the housing, a liquid crystal display (LCD), a wireless charging coil, a light emitting diode (LED) flash light, a universal serial bus (USB) port, a direct current (DC) port, and a power management circuit. The LCD can be positioned on the housing and configured to display a status of the portable power pack. The wireless charging coil can be positioned in or on the housing and configured to wirelessly couple with an external wireless charging coil of an external device through electromagnetic induction in accordance with, for example, the Qi wireless power transfer standard. The USB port supplies a charging current to charge a portable electronic device, while the DC port supplies a starting current to jump start an engine of a vehicle that is electrically coupled with an external battery. The power management circuit operatively coupled to the wireless charging coil and the rechargeable lithium battery and configured to output the charging current or the starting current.