Lighting module and refrigeration appliance with lighting module
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Solution Overview
Problem
Existing lighting modules in refrigeration appliances face challenges due to the physical changes of light guide plates with temperature and humidity variations, leading to unstable lighting quality across different environments.
Innovation Solution
Incorporating an elastic member between the light guide plate and the cover of the lighting module, which applies a force to maintain the light guide plate's position relative to the light source, ensuring consistent lighting despite expansions or contractions caused by temperature and humidity changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a light guide plate is used to distribute light uniformly, then lighting uniformity is improved, but the light guide plate expands or contracts with temperature changes causing position instability
Solution Approach 1:
The patent introduces an elastic member that changes its physical state (deformation) in response to temperature changes, allowing the light guide plate position to be dynamically adjusted. The elastic member's deformation absorbs the expansion/contraction effects, maintaining stable positioning while preserving uniform lighting distribution.
Solution Approach 2:
The elastic member acts as an intermediary between the light guide plate and the housing. It mediates the thermal expansion/contraction forces, providing a buffer that allows the light guide plate to maintain its position relative to the light source while accommodating environmental changes.
2Stability of the object's composition
If the light guide plate is fixed rigidly to maintain position, then position stability is improved, but lighting quality deteriorates due to inability to adapt to temperature changes
Solution Approach 1:
The patent transitions from a rigid fixed connection to a dynamic elastic connection. The elastic member allows controlled movement and deformation, enabling the system to adapt to temperature changes while maintaining stable lighting quality. This dynamic approach replaces the static rigid fixation.
Solution Approach 2:
The elastic member's physical parameters (deformation, elasticity) change in response to temperature variations, allowing the system to maintain optimal positioning across different environmental conditions. This ensures consistent lighting quality regardless of thermal expansion or contraction.
3Adaptability or versatility
If the light guide plate is allowed to move freely to adapt to temperature changes, then adaptability to environments is improved, but lighting uniformity deteriorates due to position instability
Solution Approach 1:
The elastic member provides controlled parameter changes (deformation) that allow environmental adaptation while maintaining positioning stability. The elasticity constrains the movement within acceptable limits, preserving lighting uniformity while enabling thermal adaptation.
Solution Approach 2:
The elastic member serves as a mediator that balances two opposing requirements: environmental adaptability and positioning stability. It allows sufficient movement for thermal expansion/contraction while maintaining the light guide plate in a position that ensures uniform light distribution.
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 solution ensures stable and uniform lighting in various environments by maintaining the light guide plate's position, enhancing compatibility and lighting quality in refrigeration appliances.
Implementation Method 1
an elastic member, located between the light guide plate and the cover, and configured to apply a force toward the light outlet to the light guide plate
Data Source
AI summary
A lighting module is provided for a refrigeration appliance. The lighting module includes: a housing, provided with a light outlet; a light source, located in the housing; a light guide plate, adapted to guide light from the light source toward the light outlet; and an elastic member, adapted to deform to maintain a position of the light guide plate with respect to the light source and/or the light outlet.