Ceiling Mountable LED Fixture With Accessible Cable Switch
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Solution Overview
Problem
Existing LED light fixtures with multiple color temperature settings are difficult to access and control, posing safety hazards and requiring skilled labor to change, as the selector switch is often hidden and inaccessible after installation, especially when the mounting hole is too small or the driver housing is immovably secured.
Innovation Solution
A ceiling mountable LED light fixture design where the selector switch is mounted on a cable that can be easily accessed by removing the light fixture from its mounting hole, allowing for visible and safe selection of different correlated color temperature settings without needing to manipulate the driver housing, which is secured behind the ceiling sheet material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the driver housing is secured behind the ceiling sheet material, then the light fixture is stable and safe, but the selector switch becomes inaccessible and hidden from the user
Solution Approach 1:
The patent divides the control system into two separate accessible components: the driver housing remains secured behind the ceiling for stability, while the selector switch is positioned on the cable extending through the mounting hole to be accessible from below. This segmentation allows each component to fulfill its function independently - the driver provides stable power management while the switch provides user-accessible control.
Solution Approach 2:
The cable acts as an intermediary element that bridges the driver housing (secured behind ceiling) and the user (accessing from below). The selector switch is mounted on this cable, allowing electrical connection to the driver while providing physical accessibility to the user without requiring manipulation of the secured driver housing.
2Strength
If the mounting hole is made small for secure installation, then the ceiling structure is protected, but access to the driver housing becomes difficult and dangerous
Solution Approach 1:
The patent extracts the selector switch from the driver housing and positions it on the cable extending through the mounting hole. This allows the mounting hole to remain small for secure ceiling installation while the selector switch becomes accessible from below the ceiling, eliminating the need to manipulate the driver housing through the small hole.
Solution Approach 2:
The patent moves the selector switch operation from the horizontal plane (manipulating driver housing through ceiling hole) to the vertical dimension (accessing switch from below ceiling through mounting hole). This dimensional change allows secure mounting while providing safe and easy access to the control function.
3Ease of operation
If the driver housing is made movable for switch access, then the selector switch becomes accessible, but safety hazards increase due to exposure to live wires and ceiling damage risk
Solution Approach 1:
The patent segments the control function by separating the selector switch from the driver housing. The driver housing remains secured behind the ceiling (out of reach and protected from damage), while the selector switch is positioned on the cable for safe access from below. This eliminates the safety hazards associated with manipulating exposed driver housings near live wires.
Solution Approach 2:
The cable serves as a protective intermediary that shields the electrical connections between the driver housing and selector switch. By mounting the switch on the cable rather than directly on the driver housing, the design protects users from exposure to live wires while maintaining electrical functionality.
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
This design provides safe and user-friendly access to the selector switch, eliminating the need for retracting the driver housing and reducing the risk of electrical hazards and damage to the ceiling, allowing end users to easily change light color settings without requiring an electrician's expertise.
Implementation Method 1
at least two sets of light emitting diodes (LED's) are mounted in the housing for generating light at different correlated color temperature (CCT)
Data Source
AI summary
A ceiling mountable LED light fixture is described and wherein at least two sets of LED's of different correlated color temperatures (CCT) are mounted in its housing. The LED light fixture is adapted to be removably secured in a housing mounting hole in a ceiling sheeting material. A cable is secured to the light fixture to supply drive current to the LED sets. A toggle switch is mounted in the cable in close proximity to the light fixture. The cable also has a predetermined length and is also secured at a far end to a driver circuit mounted in a driver housing. The driver housing is positioned behind the ceiling sheeting material spaced from the housing mounting hole. The toggle switch is made accessible and visible by simply withdrawing the light fixture from its mounting hole and by displacing a slide switch button to select one of three positions to energize a selected one of both sets of LED's or both sets of LED's simultaneously whereby to cause the LED light fixture to generate one of three different color temperature (CCT) light.