Dual-Power Light Source Switching for Backup Battery Reliability
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Solution Overview
Problem
Existing handheld lighting devices often rely on a single power source, limiting flexibility and convenience, especially in situations where one power source may fail or be depleted.
Innovation Solution
A dual power light source device that incorporates both rechargeable and non-rechargeable batteries, allowing users to switch between power sources or use both simultaneously, with safety mechanisms to prevent incorrect usage and ensure proper alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single power source is used in handheld lighting devices, then the device structure remains simple, but flexibility and reliability are limited when power source fails or is depleted
Solution Approach 1:
The patent combines multiple power sources (rechargeable battery and non-rechargeable batteries) into a single integrated power system within the handheld lighting device. The housing includes separate compartments for different power source types, allowing both to coexist and be selected from a unified power interface, thereby improving reliability without proportionally increasing overall device complexity
Solution Approach 2:
The power interface is designed with multi-functionality to accept both rechargeable and non-rechargeable battery types. The control circuit is configured to automatically detect and adapt to different power source types, providing universal compatibility. This allows the device to function with multiple power source configurations through a single interface design, improving reliability while maintaining operational simplicity
2Adaptability or versatility
If multiple power sources are integrated into a single device, then flexibility and backup options are improved, but the risk of incorrect usage and safety issues increases
Solution Approach 1:
The control circuit serves as an intermediary between the multiple power sources and the light source. It automatically detects which power source is connected (rechargeable or non-rechargeable) and mediates the power delivery accordingly, preventing incorrect usage such as attempting to charge non-rechargeable batteries or drawing excessive current from rechargeable sources. This intermediary layer enables versatility while managing safety risks
Solution Approach 2:
The control circuit incorporates feedback mechanisms to monitor the type of power source connected and adjust operation accordingly. When a non-rechargeable battery is detected, the system disables charging functions and adjusts current limits to safe levels. This feedback-based control prevents harmful usage patterns and ensures safe operation across different power source configurations
3Adaptability or versatility
If users can manually select between power sources, then power source flexibility is improved, but user confusion and operational complexity increase
Solution Approach 1:
The control circuit performs self-service by automatically detecting and identifying the connected power source type without requiring user intervention. The system autonomously determines whether a rechargeable or non-rechargeable battery is connected and configures operation modes accordingly. This eliminates manual selection complexity and user confusion, maintaining ease of operation while providing adaptability across different power source types
Data Source
AI summary
Various embodiments of dual-powered lighting devices are described. In some examples, the device includes a light source, a first power source, a second power source, and one or more switching devices. The switching device switches between the first power source and the second power source to power the light source.