Switch with Integrated USB Port for Lamp Retrofit
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Solution Overview
Problem
Existing table lamps in the hotel industry lack a convenient and cost-effective way to provide USB charging options, as voltage converters and flush-mounted sockets are either risky due to theft or expensive and not universally compatible with all switch ranges, and existing solutions require specific lamp designs or complex retrofits.
Innovation Solution
A compact switch with a toggle actuator and integrated voltage converter, connected via a flexible cable to a mains plug, which includes a USB port for charging mobile devices, allowing for easy retrofitting to existing lamps without requiring new tools or designs, ensuring the USB connection remains active even when the lamp is switched off.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a USB charging port is integrated into the lamp base, then charging functionality is provided, but the lamp design becomes specific and not universally adaptable
Solution Approach 1:
The charging functionality is segmented from the lamp base and integrated into a separate switch device. The switch with housing (11) contains the USB port (16) and voltage converter, while the lamp base remains simple and universal. This segmentation allows the charging function to be added without modifying the lamp design.
Solution Approach 2:
The switch acts as an intermediary device between the power source and the lamp. It contains the USB charging port and voltage converter, mediating the power distribution to both the lamp and mobile devices. This intermediary approach allows charging functionality to be added without changing the lamp itself.
2Adaptability or versatility
If a flush-mounted USB socket is installed in the wall, then charging functionality is provided, but installation becomes complex and power output is limited
Solution Approach 1:
The USB charging functionality is extracted from the wall infrastructure and relocated to a portable switch device that can be attached to any lamp. This eliminates the need for complex wall socket installation and provides flexible power output.
Solution Approach 2:
The switch device is self-contained with its own voltage converter and USB port, requiring no external wall infrastructure. It serves itself by providing complete charging functionality within the portable unit, eliminating installation complexity.
3Adaptability or versatility
If a power inverter is used, then charging functionality is provided, but theft risk increases
Solution Approach 1:
The USB charging port is merged with the switch that is already securely attached to the lamp. By combining these functions in one integrated device that is fixed to the lamp, the system inherits the lamp's inherent security against theft.
Solution Approach 2:
The switch with integrated USB port is pre-attached to the lamp during manufacturing or installation, creating a secure permanent fixture. This preliminary attachment prevents theft by making the charging device part of the lamp assembly rather than a separate removable component.
4Reliability
If the switch is attached securely to the lamp, then theft protection is improved, but the switch structure becomes more complex
Solution Approach 1:
The switch housing serves multiple functions: it contains the toggle switch for lamp control, houses the USB port for charging, and provides a secure mounting structure attached to the lamp. This multi-functionality reduces the need for additional components and simplifies the overall structure.
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
Provides a secure, economical, and universally applicable USB charging solution for table lamps, reducing production complexity and enabling easy retrofitting, while ensuring continuous charging of mobile devices without additional tools or specific lamp designs.
Implementation Method 1
a voltage converter (11c) and a connection (11d) for supplying a mobile device with low voltage are further arranged in the housing
Implementation Method 2
The actuating device preferably actuates a mechanical contact with which one of the electrical conductors can be interrupted in order to switch the electrical device, in particular the lamp, on and off
Data Source
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AI summary
The disclosure relates to a switch, in particular for a light fixture, comprising a housing to which a cable with a mains plug for connection to a building's mains socket is attached. Another cable is attached to the housing for supplying power to a mains-powered device, in particular the light fixture. An operating element for switching the mains voltage on and off for the mains-powered device is arranged on the housing. A voltage converter and a USB port for supplying a mobile device with low voltage are arranged in the housing.