PCB Battery Sandwich Lighting Module With Anti-Accidental Cap Switch
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing lighting devices lack modularity, ease of control, and accidental activation prevention, particularly in compact designs where a single button control is desired for simplicity and safety.
Innovation Solution
A lighting device design featuring a cavity with a push button switch and a cap with protrusions and ridges that ensure the push button is activated only when pressed at a specific location, combined with a modular structure using printed circuit boards and a battery enclosure for enhanced functionality and protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a push button switch is added for control, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The cap is merged with the push button switch mechanism, where the cap itself serves as the actuator. When the cap is pressed, it directly activates the push button switch, combining the protective cover function with the control function into a single integrated component.
Solution Approach 2:
The cap serves multiple functions: it protects the aperture and internal components, and simultaneously acts as the control mechanism for the push button switch. This multi-functionality reduces the need for separate control components, maintaining simplicity while enabling easy operation.
2Ease of operation
If a single button control is used for simplicity, then ease of operation is improved, but functionality is limited
Solution Approach 1:
The single push button switch utilizes periodic action through different press durations or press patterns to activate different lighting modes. This allows a single button to control multiple functions (e.g., different light intensities or modes) without requiring multiple buttons, maintaining simplicity while expanding functionality.
3Ease of operation
If the protrusion is made easily pushable, then ease of operation is improved, but accidental activation increases
Solution Approach 1:
The cap incorporates localized ridges at specific positions around the protrusion. These ridges create localized resistance points that guide the user's finger to press only at the intended location. The local quality change in the cap's structure prevents accidental activation while maintaining ease of operation at the correct position.
Solution Approach 2:
The ridges on the cap act as an intermediary mechanism between the user's finger and the protrusion. They provide tactile feedback and physical guidance, ensuring that the force is applied correctly to activate the push button switch only when intended, thereby preventing accidental activation.
4Reliability
If the cap includes ridges to prevent accidental activation, then reliability is improved, but device complexity increases
Solution Approach 1:
The cap is designed as a thin, flexible component with integrated ridges. The ridges are formed as part of the cap's molding process rather than separate components, allowing the cap to maintain its simplicity and flexibility while incorporating the anti-accidental-activation feature. The thin film structure of the cap allows the ridges to provide guidance without adding significant complexity.
Data Source
AI summary
A lighting module includes a first printed circuit board (PCB) with a push button switch and a charging port, a second PCB with a light emitting diode (LED), a rechargeable battery sandwiched between the PCB's, and ring disposed between the PCB's and surrounding the battery. A device including the lighting module, a body having a cavity with an aperture, and a cap having a protrusion facing the body. The lighting module received in the cavity, with the cap covering the aperture. The protrusion and push button switch are positioned such that when the cap is pushed inward near the protrusion, the protrusion pushes the push button switch and activates the lighting module. The cap further includes a ridge surrounding the protrusion on the outward side, the ridge preventing the protrusion from being pushed into the push button switch, unless the cap is pressed at approximately a location of the protrusion.