Wireless Charging Apparatus Balancing Battery Cell Power
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Solution Overview
Problem
Existing non-contact wireless charging technologies face inefficiencies in balancing power levels between battery cells and achieving rapid charging, particularly when using magnetic induction or resonance effects.
Innovation Solution
A non-contact power supply apparatus with multiple power transmitting coils and corresponding charging units that convert input power, adjust output power levels based on power state signals, and transmit power wirelessly to battery cells, ensuring voltage and current levels are within reference ranges for efficient charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If non-contact power supply is used to charge battery cells, then wireless charging capability is achieved, but power balance between battery cells deteriorates
Solution Approach 1:
The battery apparatus is divided into multiple independently controllable battery cell groups, each with its own charging unit. This segmentation allows individual power management for each group, enabling precise control over power distribution to maintain balance between cells while receiving wireless power supply.
Solution Approach 2:
The charging units dynamically adjust charging parameters (current, voltage) based on the state of each battery cell group. By changing these parameters in real-time according to cell status, the system maintains power balance across all cells while enabling wireless charging.
2Ease of operation
If non-contact power supply is used to charge battery cells, then wireless charging is enabled, but charging speed deteriorates
Solution Approach 1:
The battery apparatus is divided into multiple independently controllable battery cell groups, each with its own charging unit. This segmentation allows individual power management for each group, enabling precise control over power distribution to maintain balance between cells while receiving wireless power supply.
Solution Approach 2:
The charging units dynamically adjust charging parameters (current, voltage) based on the state of each battery cell group. By changing these parameters in real-time according to cell status, the system maintains power balance across all cells while enabling wireless charging.
3Productivity
If multiple battery cells are charged simultaneously, then charging efficiency is improved, but power balance between cells deteriorates
Solution Approach 1:
The battery apparatus is divided into multiple independently controllable battery cell groups, each with its own charging unit. This segmentation allows individual power management for each group, enabling precise control over power distribution to maintain balance between cells while receiving wireless power supply.
Solution Approach 2:
The charging units dynamically adjust charging parameters (current, voltage) based on the state of each battery cell group. By changing these parameters in real-time according to cell status, the system maintains power balance across all cells while enabling wireless charging.
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
This solution maintains balanced power levels and enables rapid charging of battery cells by adjusting power transmission to match maximum allowable current levels, optimizing charging efficiency and preventing overcharging.
Implementation Method 1
the power may be supplied to the battery embedded in the electronic device using a non-contact scheme employing a magnetic induction effect
Implementation Method 2
the power may be supplied to the battery embedded in the electronic device using a non-contact scheme employing a magnetic resonance effect
Data Source
Figure 1A~1B
Figure 1C~1D
Figure 2
AI summary
A charging apparatus maintains a balance in power between battery cells (BC11,...,BC22) by respectively charging the battery cells with power, and rapidly charges the battery cells with power. The charging apparatus supplying unit (210) wirelessly supplying power, and the battery apparatus includes a plurality of charging units (221-1,...,222-2) corresponding to a plurality of battery cells (BC11,...,BC22) in a one-to-one scheme. Each of the plurality of charging units respectively includes a charging unit charging a corresponding battery cell with power wirelessly received from the power supplying unit.