Recessed lighting device and appliance comprising said recessed lighting device
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing recessed lighting devices in household appliances like refrigerators and wine coolers are inefficient due to limited space and inefficient light sources, occupying valuable space and not providing effective lighting.
Innovation Solution
A recessed lighting device with a frame, reflector, and diffuser extending along a longitudinal axis, using a linear light source and a magnetic coupling system to ensure effective and space-efficient lighting, with a reflector having a concave surface for optimal light distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If traditional light sources are used in recessed lighting devices, then the lighting function is provided, but the lighting efficiency is reduced and valuable space is occupied
Solution Approach 1:
The patent transitions from traditional point or linear light sources to a planar light source that emits light in multiple directions simultaneously. This dimensional change allows the light source to illuminate the concave reflective surface more effectively without requiring additional space, as the planar configuration provides broader angular coverage within the same footprint.
Solution Approach 2:
The patent changes the physical parameters of the light source by using LED technology with specific color temperatures (2000K-4000K) and arranging multiple light-emitting elements in a planar configuration. This parameter optimization improves lighting efficiency while maintaining compact dimensions suitable for recessed installation.
2Illumination intensity
If multiple light sources are distributed within the cooling chamber to enable homogeneous lighting, then the lighting coverage is improved, but the device complexity and space consumption increase
Solution Approach 1:
The patent divides the planar light source into multiple discrete light-emitting elements (LEDs) arranged in a grid pattern. This segmentation allows each element to contribute to different zones of the concave surface, achieving homogeneous illumination across the entire cooling chamber while maintaining a single integrated lighting device structure.
Solution Approach 2:
The patent combines multiple light-emitting elements into a single planar light source module that functions as one integrated unit. This merging approach provides homogeneous lighting coverage equivalent to multiple separate light sources but with reduced device complexity and space occupation, as all elements are housed within a single recessed fixture.
3Illumination intensity
If non-recessed light sources are used, then the lighting output is sufficient, but the useful space in the cooling chamber is occupied
Solution Approach 1:
The patent designs the lighting device to be recessed into the wall of the cooling chamber, with the diffuser panel flush-mounted or slightly recessed. The light source, reflector, and structural components are nested within the wall thickness, allowing the lighting function to be provided without occupying additional useful space within the cooling chamber volume.
Solution Approach 2:
The patent utilizes the wall thickness dimension to house the lighting components, transitioning from a protruding light source configuration to a recessed planar configuration. This dimensional reorganization maintains sufficient lighting output while preserving the full useful space within the cooling chamber by embedding the lighting system in the wall 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 effective and homogeneous lighting without occupying additional space, ensuring efficient light distribution and easy installation/maintenance.
Implementation Method 1
a source assembly (9) supported by the frame (8) and configured to generate at least one light beam to light the concave surface (33) of the reflector (11); the source assembly (9) comprising at least one linear light source (35) arranged along one of the longitudinal reflector edges (32a, 32b)
Implementation Method 2
a reflector (11) extending along the longitudinal axis (A), which is supported by the frame (8) and is provided with a wall (30) between two longitudinal reflector edges (32a, 32b) and defining a concave surface (33), which is at least partially reflective
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
A recessed lighting device (6) extends along a longitudinal axis (A) and comprises: • a frame (8); • a reflector (11) extending along the longitudinal axis, which is supported by the frame (8) and is provided with a wall (30) between two longitudinal reflector edges (32a, 32b) and defining a concave surface (33), which is at least partially reflective; • a diffuser (12) extending along the longitudinal axis (A), which is supported by the frame (8) and faces the concave surface (33) of the reflector (11); • a source assembly (9) supported by the frame (8) and configured to generate at least one light beam to light the concave surface (33) of the reflector (11); the source assembly (9) comprising at least one linear light source (35) arranged along one of the longitudinal reflector edges (32a, 32b).