Electronic Battery Switching for Portable Devices
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Solution Overview
Problem
Portable information processing equipment faces instability and reliability issues when switching between batteries due to mechanical switches, leading to potential power interruptions and deterioration over time.
Innovation Solution
The use of electromagnetic detection for lid portion opening or closing motions to automatically switch between batteries, employing electronic switches and integrated circuit technology for stable and reliable battery switching, allowing continuous operation and reducing mechanical wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mechanical switches are used for battery switching, then the device can physically connect/disconnect batteries, but the reliability deteriorates due to mechanical wear and potential power interruptions during switching
Solution Approach 1:
The patent replaces mechanical switches with electronic switches (transistors or solid-state relays) controlled by a control unit. This substitution eliminates mechanical contact wear and contact bounce issues, providing reliable battery switching without power interruptions. The electronic switching mechanism uses electrical signals to connect or disconnect battery circuits, ensuring stable operation and extended service life.
2Ease of operation
If manual battery switching is implemented, then the structure remains simple, but the ease of operation deteriorates requiring user intervention during battery replacement
Solution Approach 1:
The patent implements automatic battery switching through a control unit that detects battery status (such as voltage levels or insertion/removal events) and autonomously switches between batteries without user intervention. The system monitors battery states and performs seamless transitions, making the device serve itself by automatically managing power source selection based on real-time conditions.
3Ease of operation
If automatic battery switching is implemented, then the ease of operation improves with no user intervention needed, but the device complexity increases due to additional sensing and control circuits
Solution Approach 1:
The control unit is designed to perform multiple functions: it monitors battery status (voltage, current, temperature), detects battery insertion/removal events, controls electronic switches for battery switching, and may manage charging operations. By consolidating these diverse functions into a single multi-functional control unit, the patent reduces overall system complexity compared to having separate dedicated circuits for each function.
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 configuration ensures stable continuous operation by preventing power interruptions and maintaining reliability over long periods by using electronic switches for battery switching, reducing mechanical deterioration and enhancing usability through visual alerts.
Implementation Method 1
a magnetic-field-detecting element which detects an opening or closing motion of the lid portion
Data Source
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AI summary
The separator for a battery according to the present invention is a separator for a battery including an insulator layer containing a fibrous material having a heat resistant temperature of equal to or higher than 150°C, insulating inorganic fine particles and a binder, or a separator for a battery including a porous layer formed of a thermal melting resin and an insulator layer containing insulating inorganic fine particles and a binder, wherein water content per unit volume is equal to or smaller than 1 mg/cm3 when the separator is held for 24 hours in an atmosphere with a relative humidity of 60% at 20°C. The use of the separator for a battery according to the present invention makes it possible to provide a lithium secondary battery that has favorable reliability and safety and is excellent in storage characteristics and charge-discharge cycle characteristics.