Dual-Battery Switching Assembly for Seamless Power Handover
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Solution Overview
Problem
Conventional portable electronic devices face issues with timely battery switching due to the short response time required to prevent power interruptions and potential component damage when the battery is disconnected, as the difference in length between power supply pins and detection pins results in insufficient time to switch power sources.
Innovation Solution
The implementation of two battery switching assemblies with primary and secondary fasteners, where the engagement and disengagement of these fasteners trigger Hall sensors to signal the control unit to switch power sources, ensuring a sufficient response time by maintaining the battery in an engaged state until the control unit can switch to another power source.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the detection pin is made shorter to enable early disconnection detection, then the system can detect battery removal earlier, but the power supply pins disconnect too quickly for the system to switch power sources in time
Solution Approach 1:
The battery connection structure is segmented into two independent fastening mechanisms: a first fastening mechanism with detection pins for early disconnection detection, and a second fastening mechanism with power supply pins for actual power connection. This segmentation allows the detection pins to be shorter and disconnect earlier, providing advance warning to the system while the power supply pins remain connected longer to ensure continuous power during the switching transition.
Solution Approach 2:
The first fastening mechanism performs preliminary action by detecting battery removal before the second fastening mechanism disconnects. The detection pins in the first mechanism are shorter and disconnect first, triggering a disconnection signal that allows the system to prepare for power switching in advance, before the power supply pins actually lose connection.
2Loss of time
If the detection pin length is increased to match the power supply pins, then the power supply can be maintained longer, but the system cannot detect battery removal in time to switch power sources
Solution Approach 1:
The connection structure is divided into two separate fastening mechanisms with different pin lengths and functions. The first mechanism has shorter detection pins for early detection, while the second mechanism has longer power supply pins for maintaining power, resolving the contradiction between early detection and power maintenance.
Solution Approach 2:
The first fastening mechanism acts as an intermediary between the battery and the system, providing early warning of removal through detection pins that disconnect before the power supply pins. This intermediary mechanism bridges the gap between detection needs and power continuity requirements.
3Device complexity
If a single fastening mechanism is used for both detection and power supply, then the structure is simpler, but the system cannot provide sufficient response time for power switching
Solution Approach 1:
The single fastening mechanism is segmented into two independent mechanisms: one for detection and one for power supply. This segmentation, while increasing structural complexity, enables reliable power switching by providing temporal separation between detection and actual power disconnection.
Solution Approach 2:
Each fastening mechanism serves a specific function: the first mechanism is specialized for detection, while the second is specialized for power supply. This functional specialization within the universal battery connection system ensures both early detection and continuous power during transitions.
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 provides a reliable battery switching mechanism that prevents power interruptions and component damage by ensuring a minimum 0.03-second response time for switching power sources, allowing for seamless transitions and maintaining continuous operation.
Implementation Method 1
the Hall sensor corresponding to the primary fastener sends a signal to a control unit
Data Source
AI summary
A portable electronic device with a battery switching function is provided. The portable electronic device has two battery switching assemblies corresponding to each battery. Each battery switching assembly has a primary fastener and a secondary fastener corresponding to each other. When the primary fastener is engaged with the secondary fastener, the secondary fastener engages with the corresponding battery so that the battery cannot be detached from the casing of the portable electronic device. When the primary fastener and the secondary fastener are disengaged, the Hall sensor corresponding to the primary fastener sends a signal to a control unit. Then the control unit turns off the power supply of the corresponding battery and switches to another battery to supply power, or closes a specific application to reduce power consumption.