Lighting module and refrigeration appliance with lighting module
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Solution Overview
Problem
Existing refrigeration appliance lighting modules experience unstable lighting quality due to temperature and humidity changes, causing the light guide plate to expand or contract, leading to inconsistent light distribution and quality across different storage compartments.
Innovation Solution
The lighting module incorporates an elastic member between the light guide plate and the housing to maintain a constant position relative to the light source, and a snap-fit connection structure with a cover and frame to securely fasten components without glue, ensuring stable light emission and easy assembly/disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If components are undetachably fastened together with glue, then assembly stability is improved, but maintenance and replacement difficulty increases
Solution Approach 1:
The lighting module is divided into separable components: the light source assembly (including light emitting element and substrate) can be detached from the housing, and the light guide plate can be separately removed. This segmentation allows easy maintenance and replacement while maintaining stable operation during use.
Solution Approach 2:
The patent employs a dynamic fastening system where components are securely held during operation but can be easily released when needed. The light source is mounted on a substrate that can be detached from the housing, and the light guide plate is positioned but not permanently fixed, enabling flexible maintenance while ensuring operational stability.
2Reliability
If light source and light guide plate are firmly fixed, then lighting quality stability is improved, but adaptability to temperature and humidity changes deteriorates
Solution Approach 1:
The patent employs a dynamic fastening system where components are securely held during operation but can be easily released when needed. The light source is mounted on a substrate that can be detached from the housing, and the light guide plate is positioned but not permanently fixed, enabling flexible maintenance while ensuring operational stability.
Solution Approach 2:
The patent allows for parameter adjustments in response to environmental changes. The light guide plate can be repositioned or replaced to optimize light distribution under different temperature and humidity conditions, while the modular design enables easy modification of the light source characteristics to adapt to varying operational environments.
3Ease of repair
If components are detachably assembled, then maintenance ease is improved, but assembly stability deteriorates
Solution Approach 1:
The lighting module is divided into separable components: the light source assembly (including light emitting element and substrate) can be detached from the housing, and the light guide plate can be separately removed. This segmentation allows easy maintenance and replacement while maintaining stable operation during use.
Solution Approach 2:
The patent employs a dynamic fastening system where components are securely held during operation but can be easily released when needed. The light source is mounted on a substrate that can be detached from the housing, and the light guide plate is positioned but not permanently fixed, enabling flexible maintenance while ensuring operational stability.
4Ease of manufacture
If glue is used for assembly, then manufacturing simplicity is improved, but environmental stability deteriorates
Solution Approach 1:
The lighting module is divided into separable components: the light source assembly (including light emitting element and substrate) can be detached from the housing, and the light guide plate can be separately removed. This segmentation allows easy maintenance and replacement while maintaining stable operation during use.
Solution Approach 2:
The patent employs a dynamic fastening system where components are securely held during operation but can be easily released when needed. The light source is mounted on a substrate that can be detached from the housing, and the light guide plate is positioned but not permanently fixed, enabling flexible maintenance while ensuring operational stability.
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 configuration maintains consistent lighting quality across varying environmental conditions and allows for secure, glue-free assembly of the light source, guide plate, and other components, enhancing the appliance's design and functionality.
Implementation Method 1
The elastic member is sandwiched between a second end surface of the light guide plate and the inner frame to apply a force toward the light source to the light guide plate
Data Source
AI summary
A lighting module for a refrigeration appliance has a housing provided with a light outlet. The housing includes a supporting edge surrounding the light outlet and an inner frame disposed along the supporting edge. The inner frame protrudes from the supporting edge in a direction away from the light outlet. The housing further has a light source. The light source includes a light emitting element and a substrate bearing the light emitting element. The light guide plate is supported on the supporting edge and includes a first end surface protruding toward the inner frame. The housing includes a mounting portion located in a space defined by the first end surface of the light guide plate, the supporting edge, and the inner frame. The substrate is mounted on the mounting portion, so that the light emitting element and the first end surface of the light guide plate face each other.