Dual-Source Downlight Assembly for Switchable Lighting Modes
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Solution Overview
Problem
Existing downlights on the market offer only a single lighting mode, failing to meet diverse customer requirements, necessitating multiple lamp purchases and complicating customer choice, while manufacturers are forced to produce various models.
Innovation Solution
A downlight design featuring two light sources with different lighting configurations, allowing for three selectable modes: a main light source emitting through a light guide plate and diffusion cover, and an auxiliary light source emitting through a light guide ring, along with a simplified assembly process using four screws.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single light source is used in the downlight, then the structure is simple, but the lighting mode diversity is insufficient
Solution Approach 1:
The downlight integrates two light sources (first light source and second light source) into a single fixture, enabling multiple lighting modes (first lighting mode, second lighting mode, and third lighting mode) within one device. This multi-functional design eliminates the need for customers to purchase multiple separate lamps while maintaining structural simplicity through unified housing and control mechanisms.
2Adaptability or versatility
If multiple light sources are added to provide multiple lighting modes, then the lighting mode diversity is improved, but the device complexity increases
Solution Approach 1:
The patent combines two light sources and their respective light guiding structures (light guide ring for the first light source, and light guide plate with diffusion cover for the second light source) into a single integrated downlight assembly. The housing unifies all components, and the control system manages multiple lighting modes through a single interface, reducing overall device complexity despite the added functionality.
Solution Approach 2:
The downlight structure is segmented into distinct functional modules: the first light source with light guide ring for ambient lighting, the second light source with light guide plate and diffusion cover for focused illumination, and the housing that integrates both systems. This modular segmentation allows independent optimization of each lighting mode while maintaining manageable overall complexity.
3Reliability
If traditional assembly methods are used for multiple components, then the assembly is secure, but the assembly process is time-consuming and complex
Solution Approach 1:
The patent employs a unified housing structure that integrates mounting features, light source holders, and component securing mechanisms into a single assembly unit. This consolidated design allows all components (light sources, light guides, diffusion covers) to be installed through one coordinated assembly process rather than multiple separate mounting operations, reducing assembly time while maintaining secure installation through the housing's integrated fastening system.
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 design provides customizable lighting effects, reduces overall lamp height, minimizes installation space, and decreases packaging costs by allowing separate or simultaneous operation of the light sources, simplifying assembly.
Implementation Method 1
a second light source corresponding to the light guide plate is connected to an inner sidewall of the radiator... employing light emitted by the second light source and passing through the light guide plate and diffusion cover as a primary illumination of the downlight
Implementation Method 2
a first light source is disposed between the ring body and the radiator... employing light emitted by the first light source and passing through the light guiding ring as a secondary illumination of the downlight
Implementation Method 3
Reflective sheet is disposed above the light guide plate
Data Source
AI summary
A downlight with multiple switchable lighting modes is disclosed. The downlight includes a ring body. A light guide ring is disposed inside the ring body. A radiator is disposed above the light guide ring. A diffusion cover is disposed on the inner side of the radiator. A light guide plate is disposed above the diffusion cover. Reflective sheet is disposed above the light guide plate. A second light source is connected to an inner wall of the radiator. A first light source is disposed between the ring body and the radiator. A backplate is connected above the ring body.