Flashlight Charger With Resilient Pressing Element
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Solution Overview
Problem
Existing flashlight chargers often fail to provide a secure and easy-to-maintain electrical connection and efficient removal mechanism for flashlights, leading to potential contact issues and user inconvenience.
Innovation Solution
A flashlight charger design featuring a bottom plate with a resilient pressing element and electrically conducting part, including a wedge-shaped fastener and retractable charging terminals, which securely connects and disconnects from the flashlight using L-shaped grooves and projections, ensuring stable contact and easy removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional flashlight charger connection mechanism is used, then the structure is simple, but the electrical contact is not stable and the connection is not secure
Solution Approach 1:
The pressing element is designed as a resilient component that can dynamically adjust its pressing force on the flashlight body. When the flashlight is inserted, the pressing element automatically exerts force to secure the connection and maintain stable electrical contact. This dynamic mechanism resolves the contradiction by providing reliable electrical contact through elastic deformation rather than through complex mechanical fastening structures.
Solution Approach 2:
The charging terminal is designed with a retractable structure that automatically extends when the flashlight is inserted and retracts when removed. The resilient pressing element self-adjusts to maintain optimal contact pressure without requiring additional control mechanisms. This self-service approach achieves stable electrical contact while keeping the overall structure relatively simple.
2Reliability
If a secure fastening mechanism is added to maintain good electrical contact, then the electrical contact stability improves, but the removal operation becomes more difficult
Solution Approach 1:
The resilient pressing element provides strong holding force during charging but allows easy release when force is applied in the opposite direction. The elastic nature of the pressing element means it continuously exerts securing force during normal use but can be quickly overcome by simple pulling or pressing actions, enabling easy removal without complex release mechanisms.
Solution Approach 2:
The connection mechanism is segmented into the charger body, the pressing element, and the flashlight components. This segmentation allows the pressing element to independently provide securing force while the flashlight can be easily removed by overcoming this localized elastic force, rather than requiring disassembly of an integrated complex fastening system.
3Reliability
If the charging terminal is fixed, then the structure is simple, but the electrical contact quality deteriorates when the flashlight is inserted
Solution Approach 1:
The charging terminal is designed with a retractable structure that can dynamically change its position. When the flashlight is inserted, the terminal extends to establish electrical contact, and when removed, it retracts to its original position. This dynamic adjustment ensures good electrical contact quality without requiring a complex adjustable mechanism, as the motion is driven by the insertion force itself.
Solution Approach 2:
The retractable charging terminal is actuated automatically by the insertion of the flashlight itself. The mechanical force of insertion causes the terminal to extend and make contact, eliminating the need for separate actuation mechanisms. This self-service approach improves electrical contact quality while maintaining structural simplicity.
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
The charger provides a secure and stable electrical connection during charging and allows for quick and convenient removal of the flashlight, maintaining electrical contact integrity and user convenience.
Implementation Method 1
Each of the charging terminals extended from one end of the electrically conducting part of the flashlight charger having an inner end biased by a spring so each charging terminal is resiliently retractable
Implementation Method 2
The resilient pressing element is provided at one end of the bottom plate, has a middle section protrudingly and upwardly provided with a wedge-shaped fastener
Data Source
AI summary
A flashlight charger includes a bottom plate provided with a pressing element and an electrically conducting part fixedly connected to a top plate that partially covers the pressing element and the electrically conducting part. A flashlight to be charged is aligned and connected with the flashlight charger and then pushed backward relative to the flashlight charger to allow the charging terminals at one end of the flashlight charger to make good electrical contact with the corresponding charging ends of the flashlight while the flashlight is securely fastened with the flashlight charger. When charging is completed, the flashlight can be removed from the flashlight charger rapidly and conveniently. The flashlight charger features good and stable electrical contact in use.