Pullable Downlight Module for Adjustable Lighting Coverage
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Solution Overview
Problem
Conventional downlight devices are inflexible, typically installed at high positions, making it difficult for users to adjust light patterns to meet their specific needs, and there is a need for a more convenient and adaptable lighting solution.
Innovation Solution
A downlight apparatus featuring a pullable light module with a drawstring mechanism that allows the light module to be adjusted in distance and direction, connected to a power source via a pullable wire, and equipped with a driver circuit, elastic fixing units, and sensors for automatic ambient light adjustment, enabling flexible positioning and light parameter control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If downlight devices are installed at high positions in ceiling, then the lighting coverage area is improved, but the ease of operation deteriorates because users cannot easily adjust light patterns
Solution Approach 1:
The downlight device is divided into a fixed housing portion installed in the ceiling and a movable light module that can be pulled out and adjusted. This segmentation allows the housing to remain stationary at high position for coverage while the light module becomes independently adjustable by users.
Solution Approach 2:
The light module transitions from a fixed position to a movable position through a pull-string mechanism. Users can pull the light module out to adjust lighting patterns and push it back to return to original position, making the system dynamically adjustable rather than static.
2Adaptability or versatility
If conventional fixed downlight devices are used, then the device complexity is reduced, but the adaptability deteriorates because users cannot adjust light patterns to meet specific needs
Solution Approach 1:
By separating the housing from the light module, the system gains adaptability. The light module can be independently adjusted or replaced to meet different lighting needs without replacing the entire device, reducing overall complexity while increasing versatility.
Solution Approach 2:
The movable light module design allows a single device to serve multiple lighting functions and patterns. Users can adjust the light module to create different lighting scenarios, making the device universally applicable for various lighting needs.
3Use of energy by moving object
If LED lighting is used, then energy consumption is reduced, but the initial cost deteriorates due to higher cost of commercial LEDs
Solution Approach 1:
The light module is designed as a separate, replaceable component. This allows the expensive LED components to be concentrated in a small, standardized module that can be manufactured more efficiently and potentially replaced if needed, rather than distributing cost across the entire downlight assembly.
Data Source
AI summary
A downlight apparatus includes a downlight housing, a drawstring module and a light module. The downlight housing has a surface rim and a downlight holder. The surface rim defines a rim opening. The surface rim conceals an installation cavity. The holder defines a holder space connected to the rim opening. The downlight housing is attached in the installation cavity with a fixing unit. The drawstring module is used for collecting a pullable wire. The pullable wire is electrically connected to a power source. The light module has a light source and a light housing. The light housing is connected to a bottom end of the pullable wire for electrically connecting the power source to the light source. The light module is pulled out from the holder space to an adjustable distance from the rim opening with the pullable wire connecting the light module to the downlight housing.