Foldable Dual-Battery Circuit Layout for Parallel Charging Control
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Solution Overview
Problem
Current dual-battery designs in mobile terminals suffer from heat loss, reduced discharging capability, and prolonged charging times due to the need for a load switch unit and the sequential charging and discharging of batteries.
Innovation Solution
A foldable electronic device with two batteries connected in parallel, where both batteries are simultaneously charged using a charging circuit, and a switch regulates the charging current to ensure safety and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If sequential charging/discharging design is used, then battery capacity is ensured, but charging time is long and discharging capability is insufficient
Solution Approach 1:
The patent merges two batteries into a parallel charging/discharging system where both batteries are charged and discharged simultaneously through a unified control circuit, eliminating the sequential operation mode and enabling concurrent energy storage and release processes
Solution Approach 2:
The patent implements continuous useful action by enabling both batteries to charge and discharge simultaneously in parallel, ensuring that energy storage and release operations occur continuously without sequential interruptions, thereby reducing total charging time and enhancing discharging capability
2Ease of operation
If load switch unit is used in dual-battery design, then battery switching is controlled, but heat loss occurs and battery capacity is consumed
Solution Approach 1:
The patent extracts and eliminates the load switch unit from the dual-battery system, replacing it with a control circuit that directly manages battery charging and discharging operations, thereby removing the source of heat loss and energy consumption associated with mechanical switching components
Solution Approach 2:
The patent introduces a control circuit as an intermediary between the batteries and the charging/discharging system, which electronically regulates battery operations without requiring physical switch units, thus reducing energy loss and heat generation while maintaining operational control
3Reliability
If one battery is charged at a time, then charging safety is maintained, but charging speed is reduced
Solution Approach 1:
The patent merges the charging operations of two batteries into a single parallel charging system, where both batteries receive charge simultaneously through a unified control circuit that monitors and regulates current distribution, thereby increasing overall charging speed while maintaining safety through centralized control
Solution Approach 2:
The patent implements a universal control circuit that simultaneously manages the charging of both batteries through a single interface, enabling the system to charge multiple batteries in parallel with unified safety protocols, thus improving charging speed without compromising safety monitoring capabilities
Data Source
AI summary
An electronic device includes a charging circuit, a control circuit, a first battery branch circuit, a second battery branch circuit, a first accommodation space, and a second accommodation space. The first battery branch circuit and the second battery branch circuit are connected in parallel. The first battery branch circuit includes a first battery and a first switch that are connected to each other in series. The second battery branch circuit includes a second battery. The first battery is disposed in the first accommodation space, and the second battery is disposed in the second accommodation space. The first accommodation space and the second accommodation space are connected through a bendable member.