Threaded-Head Spherical Lamp Charging Base for Detachable Emergency Use
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Solution Overview
Problem
Existing LED spherical lamps are fixed in place and cannot provide portable illumination during power outages, despite having built-in battery solutions for emergency lighting.
Innovation Solution
A separable wireless charging spherical lamp design with a detachable lamp head and body, utilizing a power conversion board to convert mains electricity to low voltage, charging a rechargeable battery within the lamp body, and ensuring continuous illumination through a detachable design that allows easy reassembly without directional alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the lamp uses an integrated structure directly connected to indoor power supplies, then the structure is simple and stable, but the lamp cannot provide portable illumination during power outages
Solution Approach 1:
The lamp is divided into two separable parts: a lamp head that connects to power supply and a lamp body that can be portably used. The lamp body contains a battery and can function independently during power outages, while normally receiving power from the lamp head. This segmentation enables both continuous illumination reliability and portability.
2Ease of operation
If the lamp uses a built-in battery with detachable design for portability, then the lamp can provide emergency lighting, but the reassembly requires directional alignment which reduces convenience
Solution Approach 1:
The connection interface uses asymmetric concentric annular conductive copper foils with different diameters and positions. This asymmetric design creates a unique matching relationship between the lamp head and lamp body, ensuring that they can only be assembled in the correct orientation while maintaining structural simplicity. The asymmetric foil arrangement provides both mechanical alignment guidance and electrical connection.
3Reliability
If the lamp uses concentric annular conductive copper foils for connection, then the electrical connection is reliable and directional alignment is eliminated, but the manufacturing precision requirements increase
Solution Approach 1:
The connection structure uses nested concentric annular copper foils where smaller foils are positioned within larger foils. This nested arrangement provides inherent mechanical guidance and tolerance compensation, reducing manufacturing precision requirements. The nested structure ensures proper alignment during assembly through physical interference fitting, making the connection reliable without requiring high-precision positioning.
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
Enables portable emergency lighting by allowing the lamp body to be used separately for illumination, ensuring reliable power supply during outages and convenient reconnection, enhancing safety and usability.
Implementation Method 1
Inside the lamp head, there is a power conversion board that imports mains electricity and converts it to low voltage electricity
Implementation Method 2
The spacing between the conductive copper foils corresponds to the spacing between the elastic conductive pins. When the lamp body and lamp head are connected, the elastic conductive pins electrically connect with the conductive copper foils
Implementation Method 3
supplying power to the LED light source within the lamp body
Data Source
AI summary
A spherical lamp includes a lamp head with an AC power to low-voltage DC power conversion board; and a detachable body having an LED light source, a battery, and a conductive plate. When the body is detached from the lamp head, the battery powers the LED light source. The power conversion board has a plurality of elastic conductive pins, aligning with corresponding concentric conductive copper foils on the conductive plate, enabling electrical connection when the lamp head and body are joined, so that the battery is charged with low-voltage DC power received by the conductive plate from the conversion board.