Inductive Charger Spacers for Vehicle Battery Thermal Management
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Rechargeable batteries in vehicles face temperature issues due to high ambient temperatures and heat generation during inductive charging, leading to reduced charging rates as devices enter safe charging mode and apply only a trickle charge to prevent damage.
Innovation Solution
Incorporating spacers between the powermat surface and the portable device to maintain an air gap, allowing for airflow and heat dissipation, which keeps the battery temperature below the threshold, enabling full charging without entering safe mode.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If inductive charging is used in vehicles with high ambient temperatures, then charging convenience is improved, but battery temperature increases causing the device to enter safe charging mode
Solution Approach 1:
The patent introduces an intermediary cooling system between the battery and the inductive charging coil. This cooling system acts as a mediator that facilitates heat removal from the battery during inductive charging, allowing the charging process to continue at full rate without triggering safe charging mode due to excessive temperature.
2Productivity
If inductive charging is performed without temperature management, then charging speed is improved, but battery damage risk increases due to overheating
Solution Approach 1:
The patent converts the harmful heat generated during inductive charging into a manageable parameter by implementing an active cooling system. The cooling system transforms the potential damage from overheating into a controlled thermal management process, allowing fast charging to proceed safely by continuously removing excess heat and maintaining the battery within safe temperature limits.
3Reliability
If safe charging mode is activated due to high temperature, then battery protection is improved, but charging time increases due to trickle charge only
Solution Approach 1:
The patent implements preliminary cooling measures before and during the inductive charging process. By pre-cooling the battery and maintaining continuous cooling throughout charging, the system prevents temperature from reaching the threshold that would trigger safe charging mode, thereby avoiding the time loss associated with trickle charging while still maintaining battery protection.
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 air gap maintains a stable temperature, preventing self-protection mode and allowing for faster and complete battery charging without damage.
Implementation Method 1
a base unit generating an electromagnetic field. A portable device includes a rechargeable battery inductively charged by the electromagnetic field
Implementation Method 2
The spacers support the portable device and maintain an air gap between the base unit and the portable device
Implementation Method 3
allowing for air flow and heat dissipation, which keeps the battery temperature below the threshold
Data Source
AI summary
A portable device recharging system includes a base unit generating an electromagnetic field. A portable device includes a rechargeable battery inductively charged by the electromagnetic field. Spacers are disposed between the portable device and the base unit. The spacers support the portable device and maintain an air gap between the base unit and the portable device.