Inductive Pool LED Lamp Mounting Without Underwater Wiring
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Solution Overview
Problem
Existing LED underwater lamps in swimming pools require wires for power and signal connections, which are prone to damage and pose safety hazards, and their replacement or repair necessitates draining the surrounding water, making maintenance inconvenient.
Innovation Solution
An LED lighting device with an inductive power transmitter and receiver system that allows wireless installation and operation on standard wall fittings, using inductive coupling for power transfer and control signals, enabling easy installation and maintenance without draining the water.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wires are used to connect power and signal lines in LED underwater lamps, then power supply and control are reliable, but cable damage occurs due to water flow and maintenance requires draining the pool
Solution Approach 1:
The patent removes the cable connection from the system by extracting the power and signal transmission functions into wireless inductive coupling between a transmitter mounted on the pool wall and the receiver in the underwater lamp, eliminating the physical cable that causes damage and maintenance difficulties
Solution Approach 2:
The patent replaces the mechanical cable connection system with an electromagnetic field-based inductive coupling system, where power and signals are transmitted wirelessly through electromagnetic induction between coils in the transmitter and receiver
2Reliability
If wires are used for power and signal connections, then stable power supply is achieved, but safety hazards arise from exposed cables in water
Solution Approach 1:
The patent extracts the cable from the underwater environment entirely, placing the power transmitter on the dry pool wall and using wireless inductive coupling to transmit power to the underwater lamp, eliminating the safety hazard of exposed cables in water
Solution Approach 2:
The patent introduces an electromagnetic field as an intermediary medium to transfer power and signals between the wall-mounted transmitter and the underwater receiver, replacing the direct electrical connection through cable with an indirect field-based coupling
3Strength
If conventional wall fittings with threaded interior sections are used, then secure mounting is achieved, but the wide-mouthed section is needed to accommodate integral power supply, making installation complex
Solution Approach 1:
The patent segments the power supply function from the lamp body, placing the integral power supply in a separate wall-mounted transmitter unit while the lamp contains only the receiver and lighting components, simplifying both the lamp structure and installation process
Solution Approach 2:
The patent designs the wall-mounted transmitter to serve multiple functions: providing structural mounting support, housing the power supply, generating the electromagnetic field for wireless power transfer, and eliminating the need for modified wall fittings with wide-mouthed sections
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 device provides a safe and convenient installation and maintenance solution by eliminating the need for wires, allowing easy replacement or repair of LED lamps underwater without draining the surrounding water.
Implementation Method 1
an inductive transmitter coil located within the tee top and arranged such that a plane of the inductive transmitter coil is substantially parallel to the flat inductive power transfer face of the tee top
Implementation Method 2
the LED lamp body containing one or more LEDs
Data Source
Figure 1~2
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AI summary
A LED lighting device (80) is installable on a standard wall fitting (10). The LED lighting device (80) includes an inductive power transmitter (84) including a housing (146), a tee top (112) on the housing (146) including a flat inductive power transfer face (120), and an inductive transmitter coil (154) located within the tee top (112). A LED lamp module (86) of the LED lighting device (80) includes a LED lamp body (184) containing one or more LEDs (180), a threaded male portion (131) formed on the LED lamp body (184) and shaped to threadably engage the standard wall fitting (10), an inductive power receiver pad (132) located adjacent a flat surface (120) of the threaded male portion (131), and an inductive power receiver coil (166) located in the LED lamp body (184). When the LED lighting device (80) is installed on the standard wall fitting (10), the LED lamp module (86) is wirelessly powered by the inductive power transmitter (84).